160 lines
5.4 KiB
C
160 lines
5.4 KiB
C
/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef __LWIP_API_H__
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#define __LWIP_API_H__
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#include "lwip/opt.h"
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#include "lwip/pbuf.h"
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#include "lwip/sys.h"
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#include "lwip/ip.h"
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#include "lwip/raw.h"
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#include "lwip/udp.h"
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#include "lwip/tcp.h"
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#include "lwip/err.h"
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#define NETCONN_NOCOPY 0x00
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#define NETCONN_COPY 0x01
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enum netconn_type {
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NETCONN_TCP,
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NETCONN_UDP,
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NETCONN_UDPLITE,
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NETCONN_UDPNOCHKSUM,
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NETCONN_RAW
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};
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enum netconn_state {
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NETCONN_NONE,
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NETCONN_WRITE,
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NETCONN_ACCEPT,
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NETCONN_RECV,
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NETCONN_CONNECT,
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NETCONN_CLOSE
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};
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enum netconn_evt {
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NETCONN_EVT_RCVPLUS,
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NETCONN_EVT_RCVMINUS,
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NETCONN_EVT_SENDPLUS,
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NETCONN_EVT_SENDMINUS
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};
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struct netbuf {
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struct pbuf *p, *ptr;
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struct ip_addr *fromaddr;
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u16_t fromport;
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err_t err;
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};
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struct netconn {
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enum netconn_type type;
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enum netconn_state state;
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union {
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struct tcp_pcb *tcp;
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struct udp_pcb *udp;
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struct raw_pcb *raw;
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} pcb;
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err_t err;
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sys_mbox_t mbox;
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sys_mbox_t recvmbox;
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sys_mbox_t acceptmbox;
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sys_sem_t sem;
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int socket;
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u16_t recv_avail;
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void (* callback)(struct netconn *, enum netconn_evt, u16_t len);
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};
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/* Network buffer functions: */
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struct netbuf * netbuf_new (void);
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void netbuf_delete (struct netbuf *buf);
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void * netbuf_alloc (struct netbuf *buf, u16_t size);
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void netbuf_free (struct netbuf *buf);
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void netbuf_ref (struct netbuf *buf,
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void *dataptr, u16_t size);
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void netbuf_chain (struct netbuf *head,
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struct netbuf *tail);
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u16_t netbuf_len (struct netbuf *buf);
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err_t netbuf_data (struct netbuf *buf,
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void **dataptr, u16_t *len);
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s8_t netbuf_next (struct netbuf *buf);
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void netbuf_first (struct netbuf *buf);
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void netbuf_copy (struct netbuf *buf,
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void *dataptr, u16_t len);
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void netbuf_copy_partial(struct netbuf *buf, void *dataptr,
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u16_t len, u16_t offset);
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struct ip_addr * netbuf_fromaddr (struct netbuf *buf);
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u16_t netbuf_fromport (struct netbuf *buf);
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/* Network connection functions: */
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struct netconn * netconn_new (enum netconn_type type);
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struct
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netconn *netconn_new_with_callback(enum netconn_type t,
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void (*callback)(struct netconn *, enum netconn_evt, u16_t len));
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struct
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netconn *netconn_new_with_proto_and_callback(enum netconn_type t, u16_t proto,
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void (*callback)(struct netconn *, enum netconn_evt, u16_t len));
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err_t netconn_delete (struct netconn *conn);
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enum netconn_type netconn_type (struct netconn *conn);
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err_t netconn_peer (struct netconn *conn,
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struct ip_addr *addr,
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u16_t *port);
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err_t netconn_addr (struct netconn *conn,
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struct ip_addr **addr,
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u16_t *port);
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err_t netconn_bind (struct netconn *conn,
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struct ip_addr *addr,
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u16_t port);
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err_t netconn_connect (struct netconn *conn,
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struct ip_addr *addr,
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u16_t port);
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err_t netconn_disconnect (struct netconn *conn);
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err_t netconn_listen (struct netconn *conn);
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struct netconn * netconn_accept (struct netconn *conn);
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struct netbuf * netconn_recv (struct netconn *conn);
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err_t netconn_send (struct netconn *conn,
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struct netbuf *buf);
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err_t netconn_write (struct netconn *conn,
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void *dataptr, u16_t size,
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u8_t copy);
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err_t netconn_close (struct netconn *conn);
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err_t netconn_err (struct netconn *conn);
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#endif /* __LWIP_API_H__ */
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