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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* |
| 2 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
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| 3 | * operating system. INET is implemented using the BSD Socket |
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| 4 | * interface as the means of communication with the user level. |
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| 5 | * |
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| 6 | * Definitions for the ICMP protocol. |
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| 7 | * |
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| 8 | * Version: @(#)icmp.h 1.0.3 04/28/93 |
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| 9 | * |
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| 10 | * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
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| 11 | * |
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| 12 | * This program is free software; you can redistribute it and/or |
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| 13 | * modify it under the terms of the GNU General Public License |
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| 14 | * as published by the Free Software Foundation; either version |
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| 15 | * 2 of the License, or (at your option) any later version. |
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| 16 | */ |
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| 17 | #ifndef _LINUX_ICMP_H |
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| 18 | #define _LINUX_ICMP_H |
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| 19 | |||
| 20 | #define ICMP_ECHOREPLY 0 /* Echo Reply */ |
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| 21 | #define ICMP_DEST_UNREACH 3 /* Destination Unreachable */ |
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| 22 | #define ICMP_SOURCE_QUENCH 4 /* Source Quench */ |
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| 23 | #define ICMP_REDIRECT 5 /* Redirect (change route) */ |
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| 24 | #define ICMP_ECHO 8 /* Echo Request */ |
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| 25 | #define ICMP_TIME_EXCEEDED 11 /* Time Exceeded */ |
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| 26 | #define ICMP_PARAMETERPROB 12 /* Parameter Problem */ |
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| 27 | #define ICMP_TIMESTAMP 13 /* Timestamp Request */ |
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| 28 | #define ICMP_TIMESTAMPREPLY 14 /* Timestamp Reply */ |
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| 29 | #define ICMP_INFO_REQUEST 15 /* Information Request */ |
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| 30 | #define ICMP_INFO_REPLY 16 /* Information Reply */ |
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| 31 | #define ICMP_ADDRESS 17 /* Address Mask Request */ |
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| 32 | #define ICMP_ADDRESSREPLY 18 /* Address Mask Reply */ |
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| 33 | #define NR_ICMP_TYPES 18 |
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| 34 | |||
| 35 | |||
| 36 | /* Codes for UNREACH. */ |
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| 37 | #define ICMP_NET_UNREACH 0 /* Network Unreachable */ |
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| 38 | #define ICMP_HOST_UNREACH 1 /* Host Unreachable */ |
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| 39 | #define ICMP_PROT_UNREACH 2 /* Protocol Unreachable */ |
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| 40 | #define ICMP_PORT_UNREACH 3 /* Port Unreachable */ |
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| 41 | #define ICMP_FRAG_NEEDED 4 /* Fragmentation Needed/DF set */ |
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| 42 | #define ICMP_SR_FAILED 5 /* Source Route failed */ |
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| 43 | #define ICMP_NET_UNKNOWN 6 |
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| 44 | #define ICMP_HOST_UNKNOWN 7 |
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| 45 | #define ICMP_HOST_ISOLATED 8 |
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| 46 | #define ICMP_NET_ANO 9 |
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| 47 | #define ICMP_HOST_ANO 10 |
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| 48 | #define ICMP_NET_UNR_TOS 11 |
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| 49 | #define ICMP_HOST_UNR_TOS 12 |
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| 50 | #define ICMP_PKT_FILTERED 13 /* Packet filtered */ |
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| 51 | #define ICMP_PREC_VIOLATION 14 /* Precedence violation */ |
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| 52 | #define ICMP_PREC_CUTOFF 15 /* Precedence cut off */ |
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| 53 | #define NR_ICMP_UNREACH 15 /* instead of hardcoding immediate value */ |
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| 54 | |||
| 55 | /* Codes for REDIRECT. */ |
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| 56 | #define ICMP_REDIR_NET 0 /* Redirect Net */ |
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| 57 | #define ICMP_REDIR_HOST 1 /* Redirect Host */ |
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| 58 | #define ICMP_REDIR_NETTOS 2 /* Redirect Net for TOS */ |
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| 59 | #define ICMP_REDIR_HOSTTOS 3 /* Redirect Host for TOS */ |
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| 60 | |||
| 61 | /* Codes for TIME_EXCEEDED. */ |
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| 62 | #define ICMP_EXC_TTL 0 /* TTL count exceeded */ |
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| 63 | #define ICMP_EXC_FRAGTIME 1 /* Fragment Reass time exceeded */ |
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| 64 | |||
| 65 | |||
| 66 | struct icmphdr { |
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| 67 | __u8 type; |
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| 68 | __u8 code; |
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| 69 | __u16 checksum; |
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| 70 | union { |
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| 71 | struct { |
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| 72 | __u16 id; |
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| 73 | __u16 sequence; |
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| 74 | } echo; |
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| 75 | __u32 gateway; |
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| 76 | struct { |
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| 77 | __u16 __unused; |
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| 78 | __u16 mtu; |
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| 79 | } frag; |
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| 80 | } un; |
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| 81 | }; |
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| 82 | |||
| 83 | /* |
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| 84 | * constants for (set|get)sockopt |
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| 85 | */ |
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| 86 | |||
| 87 | #define ICMP_FILTER 1 |
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| 88 | |||
| 89 | struct icmp_filter { |
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| 90 | __u32 data; |
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| 91 | }; |
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| 92 | |||
| 93 | |||
| 94 | #endif /* _LINUX_ICMP_H */ |