BadVPN – Blame information for rev 1
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1 | office | 1 | /** |
2 | * @file |
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3 | * AutoIP protocol definitions |
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4 | */ |
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5 | |||
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 | |||
40 | #ifndef LWIP_HDR_PROT_AUTOIP_H |
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41 | #define LWIP_HDR_PROT_AUTOIP_H |
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42 | |||
43 | #ifdef __cplusplus |
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44 | extern "C" { |
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45 | #endif |
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46 | |||
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 | |||
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 | |||
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 | |||
74 | #ifdef __cplusplus |
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75 | } |
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76 | #endif |
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77 | |||
78 | #endif /* LWIP_HDR_PROT_AUTOIP_H */ |