1 /** 2 * @file 3 * Base TCP API definitions shared by TCP and ALTCP<br> 4 * See also @ref tcp_raw 5 */ 6 7 /* 8 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without modification, 12 * are permitted provided that the following conditions are met: 13 * 14 * 1. Redistributions of source code must retain the above copyright notice, 15 * this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright notice, 17 * this list of conditions and the following disclaimer in the documentation 18 * and/or other materials provided with the distribution. 19 * 3. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 25 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 27 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 30 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 31 * OF SUCH DAMAGE. 32 * 33 * This file is part of the lwIP TCP/IP stack. 34 * 35 * Author: Adam Dunkels <adam@sics.se> 36 * 37 */ 38 #ifndef LWIP_HDR_TCPBASE_H 39 #define LWIP_HDR_TCPBASE_H 40 41 #include "lwip/opt.h" 42 43 #if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ 44 45 #ifdef __cplusplus 46 extern "C" { 47 #endif 48 49 50 #if LWIP_WND_SCALE 51 typedef u32_t tcpwnd_size_t; 52 #else 53 typedef u16_t tcpwnd_size_t; 54 #endif 55 56 enum tcp_state { 57 CLOSED = 0, 58 LISTEN = 1, 59 SYN_SENT = 2, 60 SYN_RCVD = 3, 61 ESTABLISHED = 4, 62 FIN_WAIT_1 = 5, 63 FIN_WAIT_2 = 6, 64 CLOSE_WAIT = 7, 65 CLOSING = 8, 66 LAST_ACK = 9, 67 TIME_WAIT = 10 68 }; 69 /* ATTENTION: this depends on state number ordering! */ 70 #define TCP_STATE_IS_CLOSING(state) ((state) >= FIN_WAIT_1) 71 72 /* Flags for "apiflags" parameter in tcp_write */ 73 #define TCP_WRITE_FLAG_COPY 0x01 74 #define TCP_WRITE_FLAG_MORE 0x02 75 76 #define TCP_PRIO_MIN 1 77 #define TCP_PRIO_NORMAL 64 78 #define TCP_PRIO_MAX 127 79 80 const char* tcp_debug_state_str(enum tcp_state s); 81 82 #ifdef __cplusplus 83 } 84 #endif 85 86 #endif /* LWIP_TCP */ 87 88 #endif /* LWIP_HDR_TCPBASE_H */ 89