/* | |
* 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: Adam Dunkels <adam@sics.se> | |
* | |
*/ | |
#ifndef __LWIP_NETBUF_H__ | |
#define __LWIP_NETBUF_H__ | |
#include "lwip/opt.h" | |
#include "lwip/pbuf.h" | |
#ifdef __cplusplus | |
extern "C" { | |
#endif | |
struct netbuf { | |
struct pbuf *p, *ptr; | |
struct ip_addr *addr; | |
u16_t port; | |
}; | |
/* Network buffer functions: */ | |
struct netbuf * netbuf_new (void); | |
void netbuf_delete (struct netbuf *buf); | |
void * netbuf_alloc (struct netbuf *buf, u16_t size); | |
void netbuf_free (struct netbuf *buf); | |
err_t netbuf_ref (struct netbuf *buf, | |
const void *dataptr, u16_t size); | |
void netbuf_chain (struct netbuf *head, | |
struct netbuf *tail); | |
u16_t netbuf_len (struct netbuf *buf); | |
err_t netbuf_data (struct netbuf *buf, | |
void **dataptr, u16_t *len); | |
s8_t netbuf_next (struct netbuf *buf); | |
void netbuf_first (struct netbuf *buf); | |
#define netbuf_copy_partial(buf, dataptr, len, offset) \ | |
pbuf_copy_partial((buf)->p, (dataptr), (len), (offset)) | |
#define netbuf_copy(buf,dataptr,len) netbuf_copy_partial(buf, dataptr, len, 0) | |
#define netbuf_len(buf) ((buf)->p->tot_len) | |
#define netbuf_fromaddr(buf) ((buf)->addr) | |
#define netbuf_fromport(buf) ((buf)->port) | |
#ifdef __cplusplus | |
} | |
#endif | |
#endif /* __LWIP_NETBUF_H__ */ |