blob: 163c0998aec9ea3769b605085007c61462000bf3 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
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 */
|
