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121 lines
3.4 KiB
121 lines
3.4 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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/* |
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* INET An implementation of the TCP/IP protocol suite for the LINUX |
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* operating system. INET is implemented using the BSD Socket |
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* interface as the means of communication with the user level. |
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* |
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* Definitions for the ICMP protocol. |
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* |
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* Version: @(#)icmp.h 1.0.3 04/28/93 |
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* |
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* Author: Fred N. van Kempen, <[email protected]> |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version |
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* 2 of the License, or (at your option) any later version. |
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*/ |
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#ifndef _UAPI_LINUX_ICMP_H |
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#define _UAPI_LINUX_ICMP_H |
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#include <linux/types.h> |
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#include <asm/byteorder.h> |
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#define ICMP_ECHOREPLY 0 /* Echo Reply */ |
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#define ICMP_DEST_UNREACH 3 /* Destination Unreachable */ |
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#define ICMP_SOURCE_QUENCH 4 /* Source Quench */ |
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#define ICMP_REDIRECT 5 /* Redirect (change route) */ |
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#define ICMP_ECHO 8 /* Echo Request */ |
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#define ICMP_TIME_EXCEEDED 11 /* Time Exceeded */ |
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#define ICMP_PARAMETERPROB 12 /* Parameter Problem */ |
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#define ICMP_TIMESTAMP 13 /* Timestamp Request */ |
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#define ICMP_TIMESTAMPREPLY 14 /* Timestamp Reply */ |
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#define ICMP_INFO_REQUEST 15 /* Information Request */ |
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#define ICMP_INFO_REPLY 16 /* Information Reply */ |
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#define ICMP_ADDRESS 17 /* Address Mask Request */ |
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#define ICMP_ADDRESSREPLY 18 /* Address Mask Reply */ |
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#define NR_ICMP_TYPES 18 |
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/* Codes for UNREACH. */ |
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#define ICMP_NET_UNREACH 0 /* Network Unreachable */ |
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#define ICMP_HOST_UNREACH 1 /* Host Unreachable */ |
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#define ICMP_PROT_UNREACH 2 /* Protocol Unreachable */ |
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#define ICMP_PORT_UNREACH 3 /* Port Unreachable */ |
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#define ICMP_FRAG_NEEDED 4 /* Fragmentation Needed/DF set */ |
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#define ICMP_SR_FAILED 5 /* Source Route failed */ |
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#define ICMP_NET_UNKNOWN 6 |
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#define ICMP_HOST_UNKNOWN 7 |
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#define ICMP_HOST_ISOLATED 8 |
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#define ICMP_NET_ANO 9 |
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#define ICMP_HOST_ANO 10 |
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#define ICMP_NET_UNR_TOS 11 |
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#define ICMP_HOST_UNR_TOS 12 |
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#define ICMP_PKT_FILTERED 13 /* Packet filtered */ |
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#define ICMP_PREC_VIOLATION 14 /* Precedence violation */ |
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#define ICMP_PREC_CUTOFF 15 /* Precedence cut off */ |
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#define NR_ICMP_UNREACH 15 /* instead of hardcoding immediate value */ |
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/* Codes for REDIRECT. */ |
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#define ICMP_REDIR_NET 0 /* Redirect Net */ |
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#define ICMP_REDIR_HOST 1 /* Redirect Host */ |
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#define ICMP_REDIR_NETTOS 2 /* Redirect Net for TOS */ |
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#define ICMP_REDIR_HOSTTOS 3 /* Redirect Host for TOS */ |
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/* Codes for TIME_EXCEEDED. */ |
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#define ICMP_EXC_TTL 0 /* TTL count exceeded */ |
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#define ICMP_EXC_FRAGTIME 1 /* Fragment Reass time exceeded */ |
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struct icmphdr { |
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__u8 type; |
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__u8 code; |
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__sum16 checksum; |
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union { |
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struct { |
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__be16 id; |
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__be16 sequence; |
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} echo; |
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__be32 gateway; |
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struct { |
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__be16 __unused; |
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__be16 mtu; |
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} frag; |
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__u8 reserved[4]; |
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} un; |
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}; |
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/* |
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* constants for (set|get)sockopt |
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*/ |
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#define ICMP_FILTER 1 |
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struct icmp_filter { |
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__u32 data; |
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}; |
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/* RFC 4884 extension struct: one per message */ |
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struct icmp_ext_hdr { |
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#if defined(__LITTLE_ENDIAN_BITFIELD) |
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__u8 reserved1:4, |
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version:4; |
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#elif defined(__BIG_ENDIAN_BITFIELD) |
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__u8 version:4, |
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reserved1:4; |
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#else |
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#error "Please fix <asm/byteorder.h>" |
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#endif |
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__u8 reserved2; |
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__sum16 checksum; |
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}; |
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/* RFC 4884 extension object header: one for each object */ |
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struct icmp_extobj_hdr { |
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__be16 length; |
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__u8 class_num; |
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__u8 class_type; |
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}; |
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#endif /* _UAPI_LINUX_ICMP_H */
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