BadVPN – Blame information for rev 1
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1 | office | 1 | /** |
2 | * @file |
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3 | * ICMP API |
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4 | */ |
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5 | |||
6 | /* |
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7 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science. |
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8 | * All rights reserved. |
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9 | * |
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10 | * Redistribution and use in source and binary forms, with or without modification, |
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11 | * are permitted provided that the following conditions are met: |
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12 | * |
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13 | * 1. Redistributions of source code must retain the above copyright notice, |
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14 | * this list of conditions and the following disclaimer. |
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15 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
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16 | * this list of conditions and the following disclaimer in the documentation |
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17 | * and/or other materials provided with the distribution. |
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18 | * 3. The name of the author may not be used to endorse or promote products |
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19 | * derived from this software without specific prior written permission. |
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20 | * |
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21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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22 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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23 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
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24 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
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26 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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29 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
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30 | * OF SUCH DAMAGE. |
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31 | * |
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32 | * This file is part of the lwIP TCP/IP stack. |
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33 | * |
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34 | * Author: Adam Dunkels <adam@sics.se> |
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35 | * |
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36 | */ |
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37 | #ifndef LWIP_HDR_ICMP_H |
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38 | #define LWIP_HDR_ICMP_H |
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39 | |||
40 | #include "lwip/opt.h" |
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41 | #include "lwip/pbuf.h" |
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42 | #include "lwip/ip_addr.h" |
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43 | #include "lwip/netif.h" |
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44 | #include "lwip/prot/icmp.h" |
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45 | |||
46 | #if LWIP_IPV6 && LWIP_ICMP6 |
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47 | #include "lwip/icmp6.h" |
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48 | #endif |
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49 | |||
50 | #ifdef __cplusplus |
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51 | extern "C" { |
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52 | #endif |
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53 | |||
54 | /** ICMP destination unreachable codes */ |
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55 | enum icmp_dur_type { |
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56 | /** net unreachable */ |
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57 | ICMP_DUR_NET = 0, |
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58 | /** host unreachable */ |
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59 | ICMP_DUR_HOST = 1, |
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60 | /** protocol unreachable */ |
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61 | ICMP_DUR_PROTO = 2, |
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62 | /** port unreachable */ |
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63 | ICMP_DUR_PORT = 3, |
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64 | /** fragmentation needed and DF set */ |
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65 | ICMP_DUR_FRAG = 4, |
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66 | /** source route failed */ |
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67 | ICMP_DUR_SR = 5 |
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68 | }; |
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69 | |||
70 | /** ICMP time exceeded codes */ |
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71 | enum icmp_te_type { |
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72 | /** time to live exceeded in transit */ |
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73 | ICMP_TE_TTL = 0, |
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74 | /** fragment reassembly time exceeded */ |
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75 | ICMP_TE_FRAG = 1 |
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76 | }; |
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77 | |||
78 | #if LWIP_IPV4 && LWIP_ICMP /* don't build if not configured for use in lwipopts.h */ |
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79 | |||
80 | void icmp_input(struct pbuf *p, struct netif *inp); |
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81 | void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t); |
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82 | void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t); |
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83 | |||
84 | #endif /* LWIP_IPV4 && LWIP_ICMP */ |
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85 | |||
86 | #if LWIP_IPV4 && LWIP_IPV6 |
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87 | #if LWIP_ICMP && LWIP_ICMP6 |
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88 | #define icmp_port_unreach(isipv6, pbuf) ((isipv6) ? \ |
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89 | icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT) : \ |
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90 | icmp_dest_unreach(pbuf, ICMP_DUR_PORT)) |
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91 | #elif LWIP_ICMP |
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92 | #define icmp_port_unreach(isipv6, pbuf) do{ if(!(isipv6)) { icmp_dest_unreach(pbuf, ICMP_DUR_PORT);}}while(0) |
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93 | #elif LWIP_ICMP6 |
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94 | #define icmp_port_unreach(isipv6, pbuf) do{ if(isipv6) { icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT);}}while(0) |
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95 | #else |
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96 | #define icmp_port_unreach(isipv6, pbuf) |
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97 | #endif |
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98 | #elif LWIP_IPV6 && LWIP_ICMP6 |
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99 | #define icmp_port_unreach(isipv6, pbuf) icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT) |
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100 | #elif LWIP_IPV4 && LWIP_ICMP |
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101 | #define icmp_port_unreach(isipv6, pbuf) icmp_dest_unreach(pbuf, ICMP_DUR_PORT) |
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102 | #else /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) */ |
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103 | #define icmp_port_unreach(isipv6, pbuf) |
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104 | #endif /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) LWIP_IPV4*/ |
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105 | |||
106 | #ifdef __cplusplus |
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107 | } |
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108 | #endif |
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109 | |||
110 | #endif /* LWIP_HDR_ICMP_H */ |