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: Adam Dunkels <adam@sics.se> 30 * 31 */ 32 #ifndef __LWIP_API_H__ 33 #define __LWIP_API_H__ 34 35 #include "lwip/opt.h" 36 #include "lwip/pbuf.h" 37 #include "lwip/sys.h" 38 39 #include "lwip/ip.h" 40 41 #include "lwip/raw.h" 42 #include "lwip/udp.h" 43 #include "lwip/tcp.h" 44 45 #include "lwip/err.h" 46 47 #define NETCONN_NOCOPY 0x00 48 #define NETCONN_COPY 0x01 49 50 enum netconn_type { 51 NETCONN_TCP, 52 NETCONN_UDP, 53 NETCONN_UDPLITE, 54 NETCONN_UDPNOCHKSUM, 55 NETCONN_RAW 56 }; 57 58 enum netconn_state { 59 NETCONN_NONE, 60 NETCONN_WRITE, 61 NETCONN_ACCEPT, 62 NETCONN_RECV, 63 NETCONN_CONNECT, 64 NETCONN_CLOSE 65 }; 66 67 enum netconn_evt { 68 NETCONN_EVTRCVPLUS, 69 NETCONN_EVTRCVMINUS, 70 NETCONN_EVTSENDPLUS, 71 NETCONN_EVTSENDMINUS 72 }; 73 74 struct netbuf { 75 struct pbuf *p, *ptr; 76 struct ip_addr *fromaddr; 77 u16_t fromport; 78 err_t err; 79 }; 80 81 struct netconn { 82 enum netconn_type type; 83 enum netconn_state state; 84 union { 85 struct tcp_pcb *tcp; 86 struct udp_pcb *udp; 87 struct raw_pcb *raw; 88 } pcb; 89 err_t err; 90 sys_sem sem; 91 sys_mbox mbox; 92 sys_mbox recvmbox; 93 sys_mbox acceptmbox; 94 u16 recvavail; 95 s32 socket; 96 void (*callback)(struct netconn *,enum netconn_evt,u32); 97 }; 98 99 #endif /* __LWIP_API_H__ */ 100