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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note *//* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket * interface as the means of communication with the user level. * * Definitions for the ICMP protocol. * * Version: @(#)icmp.h 1.0.3 04/28/93 * * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */#ifndef _UAPI_LINUX_ICMP_H#define _UAPI_LINUX_ICMP_H
#include <linux/types.h>#include <asm/byteorder.h>#include <linux/if.h>#include <linux/in6.h>
#define ICMP_ECHOREPLY 0 /* Echo Reply */#define ICMP_DEST_UNREACH 3 /* Destination Unreachable */#define ICMP_SOURCE_QUENCH 4 /* Source Quench */#define ICMP_REDIRECT 5 /* Redirect (change route) */#define ICMP_ECHO 8 /* Echo Request */#define ICMP_TIME_EXCEEDED 11 /* Time Exceeded */#define ICMP_PARAMETERPROB 12 /* Parameter Problem */#define ICMP_TIMESTAMP 13 /* Timestamp Request */#define ICMP_TIMESTAMPREPLY 14 /* Timestamp Reply */#define ICMP_INFO_REQUEST 15 /* Information Request */#define ICMP_INFO_REPLY 16 /* Information Reply */#define ICMP_ADDRESS 17 /* Address Mask Request */#define ICMP_ADDRESSREPLY 18 /* Address Mask Reply */#define NR_ICMP_TYPES 18
/* Codes for UNREACH. */#define ICMP_NET_UNREACH 0 /* Network Unreachable */#define ICMP_HOST_UNREACH 1 /* Host Unreachable */#define ICMP_PROT_UNREACH 2 /* Protocol Unreachable */#define ICMP_PORT_UNREACH 3 /* Port Unreachable */#define ICMP_FRAG_NEEDED 4 /* Fragmentation Needed/DF set */#define ICMP_SR_FAILED 5 /* Source Route failed */#define ICMP_NET_UNKNOWN 6#define ICMP_HOST_UNKNOWN 7#define ICMP_HOST_ISOLATED 8#define ICMP_NET_ANO 9#define ICMP_HOST_ANO 10#define ICMP_NET_UNR_TOS 11#define ICMP_HOST_UNR_TOS 12#define ICMP_PKT_FILTERED 13 /* Packet filtered */#define ICMP_PREC_VIOLATION 14 /* Precedence violation */#define ICMP_PREC_CUTOFF 15 /* Precedence cut off */#define NR_ICMP_UNREACH 15 /* instead of hardcoding immediate value */
/* Codes for REDIRECT. */#define ICMP_REDIR_NET 0 /* Redirect Net */#define ICMP_REDIR_HOST 1 /* Redirect Host */#define ICMP_REDIR_NETTOS 2 /* Redirect Net for TOS */#define ICMP_REDIR_HOSTTOS 3 /* Redirect Host for TOS */
/* Codes for TIME_EXCEEDED. */#define ICMP_EXC_TTL 0 /* TTL count exceeded */#define ICMP_EXC_FRAGTIME 1 /* Fragment Reass time exceeded */
/* Codes for EXT_ECHO (PROBE) */#define ICMP_EXT_ECHO 42#define ICMP_EXT_ECHOREPLY 43#define ICMP_EXT_CODE_MAL_QUERY 1 /* Malformed Query */#define ICMP_EXT_CODE_NO_IF 2 /* No such Interface */#define ICMP_EXT_CODE_NO_TABLE_ENT 3 /* No such Table Entry */#define ICMP_EXT_CODE_MULT_IFS 4 /* Multiple Interfaces Satisfy Query */
/* Constants for EXT_ECHO (PROBE) */#define ICMP_EXT_ECHOREPLY_ACTIVE (1 << 2)/* active bit in reply message */#define ICMP_EXT_ECHOREPLY_IPV4 (1 << 1)/* ipv4 bit in reply message */#define ICMP_EXT_ECHOREPLY_IPV6 1 /* ipv6 bit in reply message */#define ICMP_EXT_ECHO_CTYPE_NAME 1#define ICMP_EXT_ECHO_CTYPE_INDEX 2#define ICMP_EXT_ECHO_CTYPE_ADDR 3#define ICMP_AFI_IP 1 /* Address Family Identifier for ipv4 */#define ICMP_AFI_IP6 2 /* Address Family Identifier for ipv6 */
struct icmphdr { __u8 type; __u8 code; __sum16 checksum; union { struct { __be16 id; __be16 sequence; } echo; __be32 gateway; struct { __be16 __unused; __be16 mtu; } frag; __u8 reserved[4]; } un;};
/* * constants for (set|get)sockopt */
#define ICMP_FILTER 1
struct icmp_filter { __u32 data;};
/* RFC 4884 extension struct: one per message */struct icmp_ext_hdr {#if defined(__LITTLE_ENDIAN_BITFIELD) __u8 reserved1:4, version:4;#elif defined(__BIG_ENDIAN_BITFIELD) __u8 version:4, reserved1:4;#else#error "Please fix <asm/byteorder.h>"#endif __u8 reserved2; __sum16 checksum;};
/* RFC 4884 extension object header: one for each object */struct icmp_extobj_hdr { __be16 length; __u8 class_num; __u8 class_type;};
/* RFC 8335: 2.1 Header for c-type 3 payload */struct icmp_ext_echo_ctype3_hdr { __be16 afi; __u8 addrlen; __u8 reserved;};
/* RFC 8335: 2.1 Interface Identification Object */struct icmp_ext_echo_iio { struct icmp_extobj_hdr extobj_hdr; union { char name[IFNAMSIZ]; __be32 ifindex; struct { struct icmp_ext_echo_ctype3_hdr ctype3_hdr; union { __be32 ipv4_addr; struct in6_addr ipv6_addr; } ip_addr; } addr; } ident;};#endif /* _UAPI_LINUX_ICMP_H */