blob: 043ec5d9c882123e43f4fe2c5f83422d347d95e3 (
plain)
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
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* 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>
*/
#ifndef _LINUX_ICMP_H
#define _LINUX_ICMP_H
#include <linux/skbuff.h>
#include <uapi/linux/icmp.h>
#include <uapi/linux/errqueue.h>
static inline struct icmphdr *icmp_hdr(const struct sk_buff *skb)
{
return (struct icmphdr *)skb_transport_header(skb);
}
static inline bool icmp_is_err(int type)
{
switch (type) {
case ICMP_DEST_UNREACH:
case ICMP_SOURCE_QUENCH:
case ICMP_REDIRECT:
case ICMP_TIME_EXCEEDED:
case ICMP_PARAMETERPROB:
return true;
}
return false;
}
void ip_icmp_error_rfc4884(const struct sk_buff *skb,
struct sock_ee_data_rfc4884 *out,
int thlen, int off);
/* RFC 4884 */
#define ICMP_EXT_ORIG_DGRAM_MIN_LEN 128
#define ICMP_EXT_VERSION_2 2
/* ICMP Extension Object Classes */
#define ICMP_EXT_OBJ_CLASS_IIO 2 /* RFC 5837 */
/* Interface Information Object - RFC 5837 */
enum {
ICMP_EXT_CTYPE_IIO_ROLE_IIF,
};
#define ICMP_EXT_CTYPE_IIO_ROLE(ROLE) ((ROLE) << 6)
#define ICMP_EXT_CTYPE_IIO_MTU BIT(0)
#define ICMP_EXT_CTYPE_IIO_NAME BIT(1)
#define ICMP_EXT_CTYPE_IIO_IPADDR BIT(2)
#define ICMP_EXT_CTYPE_IIO_IFINDEX BIT(3)
struct icmp_ext_iio_name_subobj {
u8 len;
char name[IFNAMSIZ];
};
enum {
/* RFC 5837 - Incoming IP Interface Role */
ICMP_ERR_EXT_IIO_IIF,
/* Add new constants above. Used by "icmp_errors_extension_mask"
* sysctl.
*/
ICMP_ERR_EXT_COUNT,
};
#endif /* _LINUX_ICMP_H */
|
