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LPC2368/lwip/include/ipv4/lwip/ip_frag.h@0:479ce5546098, 2011-12-31 (annotated)

Committer:
sherckuith
Date:
Sat Dec 31 11:25:27 2011 +0000
Revision:
0:479ce5546098
Ethernet

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sherckuith 0:479ce5546098 1 /*
sherckuith 0:479ce5546098 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
sherckuith 0:479ce5546098 3 * All rights reserved.
sherckuith 0:479ce5546098 4 *
sherckuith 0:479ce5546098 5 * Redistribution and use in source and binary forms, with or without modification,
sherckuith 0:479ce5546098 6 * are permitted provided that the following conditions are met:
sherckuith 0:479ce5546098 7 *
sherckuith 0:479ce5546098 8 * 1. Redistributions of source code must retain the above copyright notice,
sherckuith 0:479ce5546098 9 * this list of conditions and the following disclaimer.
sherckuith 0:479ce5546098 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
sherckuith 0:479ce5546098 11 * this list of conditions and the following disclaimer in the documentation
sherckuith 0:479ce5546098 12 * and/or other materials provided with the distribution.
sherckuith 0:479ce5546098 13 * 3. The name of the author may not be used to endorse or promote products
sherckuith 0:479ce5546098 14 * derived from this software without specific prior written permission.
sherckuith 0:479ce5546098 15 *
sherckuith 0:479ce5546098 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
sherckuith 0:479ce5546098 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
sherckuith 0:479ce5546098 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
sherckuith 0:479ce5546098 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
sherckuith 0:479ce5546098 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
sherckuith 0:479ce5546098 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
sherckuith 0:479ce5546098 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
sherckuith 0:479ce5546098 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
sherckuith 0:479ce5546098 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
sherckuith 0:479ce5546098 25 * OF SUCH DAMAGE.
sherckuith 0:479ce5546098 26 *
sherckuith 0:479ce5546098 27 * This file is part of the lwIP TCP/IP stack.
sherckuith 0:479ce5546098 28 *
sherckuith 0:479ce5546098 29 * Author: Jani Monoses <jani@iv.ro>
sherckuith 0:479ce5546098 30 *
sherckuith 0:479ce5546098 31 */
sherckuith 0:479ce5546098 32
sherckuith 0:479ce5546098 33 #ifndef __LWIP_IP_FRAG_H__
sherckuith 0:479ce5546098 34 #define __LWIP_IP_FRAG_H__
sherckuith 0:479ce5546098 35
sherckuith 0:479ce5546098 36 #include "lwip/opt.h"
sherckuith 0:479ce5546098 37 #include "lwip/err.h"
sherckuith 0:479ce5546098 38 #include "lwip/pbuf.h"
sherckuith 0:479ce5546098 39 #include "lwip/netif.h"
sherckuith 0:479ce5546098 40 #include "lwip/ip_addr.h"
sherckuith 0:479ce5546098 41 #include "lwip/ip.h"
sherckuith 0:479ce5546098 42
sherckuith 0:479ce5546098 43 #ifdef __cplusplus
sherckuith 0:479ce5546098 44 extern "C" {
sherckuith 0:479ce5546098 45 #endif
sherckuith 0:479ce5546098 46
sherckuith 0:479ce5546098 47 #if IP_REASSEMBLY
sherckuith 0:479ce5546098 48 /* The IP reassembly timer interval in milliseconds. */
sherckuith 0:479ce5546098 49 #define IP_TMR_INTERVAL 1000
sherckuith 0:479ce5546098 50
sherckuith 0:479ce5546098 51 /* IP reassembly helper struct.
sherckuith 0:479ce5546098 52 * This is exported because memp needs to know the size.
sherckuith 0:479ce5546098 53 */
sherckuith 0:479ce5546098 54 struct ip_reassdata {
sherckuith 0:479ce5546098 55 struct ip_reassdata *next;
sherckuith 0:479ce5546098 56 struct pbuf *p;
sherckuith 0:479ce5546098 57 struct ip_hdr iphdr;
sherckuith 0:479ce5546098 58 u16_t datagram_len;
sherckuith 0:479ce5546098 59 u8_t flags;
sherckuith 0:479ce5546098 60 u8_t timer;
sherckuith 0:479ce5546098 61 };
sherckuith 0:479ce5546098 62
sherckuith 0:479ce5546098 63 void ip_reass_init(void);
sherckuith 0:479ce5546098 64 void ip_reass_tmr(void);
sherckuith 0:479ce5546098 65 struct pbuf * ip_reass(struct pbuf *p);
sherckuith 0:479ce5546098 66 #endif /* IP_REASSEMBLY */
sherckuith 0:479ce5546098 67
sherckuith 0:479ce5546098 68 #if IP_FRAG
sherckuith 0:479ce5546098 69 #if !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF
sherckuith 0:479ce5546098 70 /** A custom pbuf that holds a reference to another pbuf, which is freed
sherckuith 0:479ce5546098 71 * when this custom pbuf is freed. This is used to create a custom PBUF_REF
sherckuith 0:479ce5546098 72 * that points into the original pbuf. */
sherckuith 0:479ce5546098 73 struct pbuf_custom_ref {
sherckuith 0:479ce5546098 74 /** 'base class' */
sherckuith 0:479ce5546098 75 struct pbuf_custom pc;
sherckuith 0:479ce5546098 76 /** pointer to the original pbuf that is referenced */
sherckuith 0:479ce5546098 77 struct pbuf *original;
sherckuith 0:479ce5546098 78 };
sherckuith 0:479ce5546098 79 #endif /* !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF */
sherckuith 0:479ce5546098 80
sherckuith 0:479ce5546098 81 err_t ip_frag(struct pbuf *p, struct netif *netif, ip_addr_t *dest);
sherckuith 0:479ce5546098 82 #endif /* IP_FRAG */
sherckuith 0:479ce5546098 83
sherckuith 0:479ce5546098 84 #ifdef __cplusplus
sherckuith 0:479ce5546098 85 }
sherckuith 0:479ce5546098 86 #endif
sherckuith 0:479ce5546098 87
sherckuith 0:479ce5546098 88 #endif /* __LWIP_IP_FRAG_H__ */