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Diffstat (limited to '')
| -rw-r--r-- | headers/linux/icmp.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/headers/linux/icmp.h b/headers/linux/icmp.h new file mode 100644 index 0000000..163c099 --- /dev/null +++ b/headers/linux/icmp.h @@ -0,0 +1,162 @@ +/* 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 */ |