[457] | 1 | /**
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| 2 | * @file
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| 3 | * AutoIP protocol definitions
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | *
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| 8 | * Copyright (c) 2007 Dominik Spies <kontakt@dspies.de>
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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 | * Author: Dominik Spies <kontakt@dspies.de>
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| 34 | *
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| 35 | * This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform
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| 36 | * with RFC 3927.
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| 37 | *
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| 38 | */
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| 39 |
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| 40 | #ifndef LWIP_HDR_PROT_AUTOIP_H
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| 41 | #define LWIP_HDR_PROT_AUTOIP_H
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| 42 |
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| 43 | #ifdef __cplusplus
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| 44 | extern "C" {
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| 45 | #endif
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| 46 |
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| 47 | /* 169.254.0.0 */
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| 48 | #define AUTOIP_NET 0xA9FE0000
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| 49 | /* 169.254.1.0 */
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| 50 | #define AUTOIP_RANGE_START (AUTOIP_NET | 0x0100)
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| 51 | /* 169.254.254.255 */
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| 52 | #define AUTOIP_RANGE_END (AUTOIP_NET | 0xFEFF)
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| 53 |
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| 54 | /* RFC 3927 Constants */
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| 55 | #define PROBE_WAIT 1 /* second (initial random delay) */
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| 56 | #define PROBE_MIN 1 /* second (minimum delay till repeated probe) */
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| 57 | #define PROBE_MAX 2 /* seconds (maximum delay till repeated probe) */
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| 58 | #define PROBE_NUM 3 /* (number of probe packets) */
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| 59 | #define ANNOUNCE_NUM 2 /* (number of announcement packets) */
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| 60 | #define ANNOUNCE_INTERVAL 2 /* seconds (time between announcement packets) */
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| 61 | #define ANNOUNCE_WAIT 2 /* seconds (delay before announcing) */
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| 62 | #define MAX_CONFLICTS 10 /* (max conflicts before rate limiting) */
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| 63 | #define RATE_LIMIT_INTERVAL 60 /* seconds (delay between successive attempts) */
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| 64 | #define DEFEND_INTERVAL 10 /* seconds (min. wait between defensive ARPs) */
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| 65 |
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| 66 | /* AutoIP client states */
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| 67 | typedef enum {
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| 68 | AUTOIP_STATE_OFF = 0,
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| 69 | AUTOIP_STATE_PROBING = 1,
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| 70 | AUTOIP_STATE_ANNOUNCING = 2,
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| 71 | AUTOIP_STATE_BOUND = 3
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| 72 | } autoip_state_enum_t;
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| 73 |
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| 74 | #ifdef __cplusplus
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| 75 | }
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| 76 | #endif
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| 77 |
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| 78 | #endif /* LWIP_HDR_PROT_AUTOIP_H */
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