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lwip/include/ipv4/lwip/ip_frag.h@0:ac1725ba162c, 2010-11-09 (annotated)
- Committer:
- segundo
- Date:
- Tue Nov 09 20:54:15 2010 +0000
- Revision:
- 0:ac1725ba162c
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| segundo | 0:ac1725ba162c | 1 | /* |
| segundo | 0:ac1725ba162c | 2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
| segundo | 0:ac1725ba162c | 3 | * All rights reserved. |
| segundo | 0:ac1725ba162c | 4 | * |
| segundo | 0:ac1725ba162c | 5 | * Redistribution and use in source and binary forms, with or without modification, |
| segundo | 0:ac1725ba162c | 6 | * are permitted provided that the following conditions are met: |
| segundo | 0:ac1725ba162c | 7 | * |
| segundo | 0:ac1725ba162c | 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| segundo | 0:ac1725ba162c | 9 | * this list of conditions and the following disclaimer. |
| segundo | 0:ac1725ba162c | 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| segundo | 0:ac1725ba162c | 11 | * this list of conditions and the following disclaimer in the documentation |
| segundo | 0:ac1725ba162c | 12 | * and/or other materials provided with the distribution. |
| segundo | 0:ac1725ba162c | 13 | * 3. The name of the author may not be used to endorse or promote products |
| segundo | 0:ac1725ba162c | 14 | * derived from this software without specific prior written permission. |
| segundo | 0:ac1725ba162c | 15 | * |
| segundo | 0:ac1725ba162c | 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| segundo | 0:ac1725ba162c | 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| segundo | 0:ac1725ba162c | 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| segundo | 0:ac1725ba162c | 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| segundo | 0:ac1725ba162c | 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| segundo | 0:ac1725ba162c | 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| segundo | 0:ac1725ba162c | 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| segundo | 0:ac1725ba162c | 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| segundo | 0:ac1725ba162c | 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| segundo | 0:ac1725ba162c | 25 | * OF SUCH DAMAGE. |
| segundo | 0:ac1725ba162c | 26 | * |
| segundo | 0:ac1725ba162c | 27 | * This file is part of the lwIP TCP/IP stack. |
| segundo | 0:ac1725ba162c | 28 | * |
| segundo | 0:ac1725ba162c | 29 | * Author: Jani Monoses <jani@iv.ro> |
| segundo | 0:ac1725ba162c | 30 | * |
| segundo | 0:ac1725ba162c | 31 | */ |
| segundo | 0:ac1725ba162c | 32 | |
| segundo | 0:ac1725ba162c | 33 | #ifndef __LWIP_IP_FRAG_H__ |
| segundo | 0:ac1725ba162c | 34 | #define __LWIP_IP_FRAG_H__ |
| segundo | 0:ac1725ba162c | 35 | |
| segundo | 0:ac1725ba162c | 36 | #include "lwip/opt.h" |
| segundo | 0:ac1725ba162c | 37 | #include "lwip/err.h" |
| segundo | 0:ac1725ba162c | 38 | #include "lwip/pbuf.h" |
| segundo | 0:ac1725ba162c | 39 | #include "lwip/netif.h" |
| segundo | 0:ac1725ba162c | 40 | #include "lwip/ip_addr.h" |
| segundo | 0:ac1725ba162c | 41 | #include "lwip/ip.h" |
| segundo | 0:ac1725ba162c | 42 | |
| segundo | 0:ac1725ba162c | 43 | #ifdef __cplusplus |
| segundo | 0:ac1725ba162c | 44 | extern "C" { |
| segundo | 0:ac1725ba162c | 45 | #endif |
| segundo | 0:ac1725ba162c | 46 | |
| segundo | 0:ac1725ba162c | 47 | #if IP_REASSEMBLY |
| segundo | 0:ac1725ba162c | 48 | /* The IP reassembly timer interval in milliseconds. */ |
| segundo | 0:ac1725ba162c | 49 | #define IP_TMR_INTERVAL 1000 |
| segundo | 0:ac1725ba162c | 50 | |
| segundo | 0:ac1725ba162c | 51 | /* IP reassembly helper struct. |
| segundo | 0:ac1725ba162c | 52 | * This is exported because memp needs to know the size. |
| segundo | 0:ac1725ba162c | 53 | */ |
| segundo | 0:ac1725ba162c | 54 | struct ip_reassdata { |
| segundo | 0:ac1725ba162c | 55 | struct ip_reassdata *next; |
| segundo | 0:ac1725ba162c | 56 | struct pbuf *p; |
| segundo | 0:ac1725ba162c | 57 | struct ip_hdr iphdr; |
| segundo | 0:ac1725ba162c | 58 | u16_t datagram_len; |
| segundo | 0:ac1725ba162c | 59 | u8_t flags; |
| segundo | 0:ac1725ba162c | 60 | u8_t timer; |
| segundo | 0:ac1725ba162c | 61 | }; |
| segundo | 0:ac1725ba162c | 62 | |
| segundo | 0:ac1725ba162c | 63 | void ip_reass_init(void); |
| segundo | 0:ac1725ba162c | 64 | void ip_reass_tmr(void); |
| segundo | 0:ac1725ba162c | 65 | struct pbuf * ip_reass(struct pbuf *p); |
| segundo | 0:ac1725ba162c | 66 | #endif /* IP_REASSEMBLY */ |
| segundo | 0:ac1725ba162c | 67 | |
| segundo | 0:ac1725ba162c | 68 | #if IP_FRAG |
| segundo | 0:ac1725ba162c | 69 | #if !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF |
| segundo | 0:ac1725ba162c | 70 | /** A custom pbuf that holds a reference to another pbuf, which is freed |
| segundo | 0:ac1725ba162c | 71 | * when this custom pbuf is freed. This is used to create a custom PBUF_REF |
| segundo | 0:ac1725ba162c | 72 | * that points into the original pbuf. */ |
| segundo | 0:ac1725ba162c | 73 | struct pbuf_custom_ref { |
| segundo | 0:ac1725ba162c | 74 | /** 'base class' */ |
| segundo | 0:ac1725ba162c | 75 | struct pbuf_custom pc; |
| segundo | 0:ac1725ba162c | 76 | /** pointer to the original pbuf that is referenced */ |
| segundo | 0:ac1725ba162c | 77 | struct pbuf *original; |
| segundo | 0:ac1725ba162c | 78 | }; |
| segundo | 0:ac1725ba162c | 79 | #endif /* !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF */ |
| segundo | 0:ac1725ba162c | 80 | |
| segundo | 0:ac1725ba162c | 81 | err_t ip_frag(struct pbuf *p, struct netif *netif, ip_addr_t *dest); |
| segundo | 0:ac1725ba162c | 82 | #endif /* IP_FRAG */ |
| segundo | 0:ac1725ba162c | 83 | |
| segundo | 0:ac1725ba162c | 84 | #ifdef __cplusplus |
| segundo | 0:ac1725ba162c | 85 | } |
| segundo | 0:ac1725ba162c | 86 | #endif |
| segundo | 0:ac1725ba162c | 87 | |
| segundo | 0:ac1725ba162c | 88 | #endif /* __LWIP_IP_FRAG_H__ */ |