[457] | 1 | /**
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| 2 | * @file
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| 3 | * Base TCP API definitions shared by TCP and ALTCP\n
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| 4 | * See also @ref tcp_raw
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| 5 | */
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| 6 |
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| 7 | /*
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| 8 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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| 9 | * All rights reserved.
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| 10 | *
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| 11 | * Redistribution and use in source and binary forms, with or without modification,
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| 12 | * are permitted provided that the following conditions are met:
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| 13 | *
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| 14 | * 1. Redistributions of source code must retain the above copyright notice,
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| 15 | * this list of conditions and the following disclaimer.
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| 16 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 17 | * this list of conditions and the following disclaimer in the documentation
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| 18 | * and/or other materials provided with the distribution.
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| 19 | * 3. The name of the author may not be used to endorse or promote products
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| 20 | * derived from this software without specific prior written permission.
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| 21 | *
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| 22 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 23 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 24 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 25 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 26 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 27 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 30 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 31 | * OF SUCH DAMAGE.
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| 32 | *
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| 33 | * This file is part of the lwIP TCP/IP stack.
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| 34 | *
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| 35 | * Author: Adam Dunkels <adam@sics.se>
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| 36 | *
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| 37 | */
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| 38 | #ifndef LWIP_HDR_TCPBASE_H
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| 39 | #define LWIP_HDR_TCPBASE_H
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| 40 |
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| 41 | #include "lwip/opt.h"
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| 42 |
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| 43 | #if LWIP_TCP /* don't build if not configured for use in lwipopts.h */
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| 44 |
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| 45 | #ifdef __cplusplus
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| 46 | extern "C" {
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| 47 | #endif
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| 48 |
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| 49 |
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| 50 | #if LWIP_WND_SCALE
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| 51 | typedef u32_t tcpwnd_size_t;
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| 52 | #else
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| 53 | typedef u16_t tcpwnd_size_t;
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| 54 | #endif
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| 55 |
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| 56 | enum tcp_state {
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| 57 | CLOSED = 0,
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| 58 | LISTEN = 1,
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| 59 | SYN_SENT = 2,
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| 60 | SYN_RCVD = 3,
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| 61 | ESTABLISHED = 4,
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| 62 | FIN_WAIT_1 = 5,
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| 63 | FIN_WAIT_2 = 6,
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| 64 | CLOSE_WAIT = 7,
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| 65 | CLOSING = 8,
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| 66 | LAST_ACK = 9,
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| 67 | TIME_WAIT = 10
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| 68 | };
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| 69 | /* ATTENTION: this depends on state number ordering! */
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| 70 | #define TCP_STATE_IS_CLOSING(state) ((state) >= FIN_WAIT_1)
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| 71 |
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| 72 | /* Flags for "apiflags" parameter in tcp_write */
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| 73 | #define TCP_WRITE_FLAG_COPY 0x01
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| 74 | #define TCP_WRITE_FLAG_MORE 0x02
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| 75 |
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| 76 | #define TCP_PRIO_MIN 1
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| 77 | #define TCP_PRIO_NORMAL 64
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| 78 | #define TCP_PRIO_MAX 127
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| 79 |
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| 80 | const char* tcp_debug_state_str(enum tcp_state s);
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| 81 |
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| 82 | #ifdef __cplusplus
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| 83 | }
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| 84 | #endif
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| 85 |
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| 86 | #endif /* LWIP_TCP */
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| 87 |
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| 88 | #endif /* LWIP_HDR_TCPBASE_H */
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