tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Definitions for the ICMP module.
7 *
8 * Version: @(#)icmp.h 1.0.4 05/13/93
9 *
10 * Authors: Ross Biro
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version
16 * 2 of the License, or (at your option) any later version.
17 */
18#ifndef _ICMP_H
19#define _ICMP_H
20
21#include <linux/config.h>
22#include <linux/icmp.h>
23
24#include <net/inet_sock.h>
25#include <net/snmp.h>
26
27struct icmp_err {
28 int errno;
29 unsigned fatal:1;
30};
31
32extern struct icmp_err icmp_err_convert[];
33DECLARE_SNMP_STAT(struct icmp_mib, icmp_statistics);
34#define ICMP_INC_STATS(field) SNMP_INC_STATS(icmp_statistics, field)
35#define ICMP_INC_STATS_BH(field) SNMP_INC_STATS_BH(icmp_statistics, field)
36#define ICMP_INC_STATS_USER(field) SNMP_INC_STATS_USER(icmp_statistics, field)
37
38struct dst_entry;
39struct net_proto_family;
40struct sk_buff;
41
42extern void icmp_send(struct sk_buff *skb_in, int type, int code, u32 info);
43extern int icmp_rcv(struct sk_buff *skb);
44extern int icmp_ioctl(struct sock *sk, int cmd, unsigned long arg);
45extern void icmp_init(struct net_proto_family *ops);
46
47/* Move into dst.h ? */
48extern int xrlim_allow(struct dst_entry *dst, int timeout);
49
50struct raw_sock {
51 /* inet_sock has to be the first member */
52 struct inet_sock inet;
53 struct icmp_filter filter;
54};
55
56static inline struct raw_sock *raw_sk(const struct sock *sk)
57{
58 return (struct raw_sock *)sk;
59}
60
61extern int sysctl_icmp_echo_ignore_all;
62extern int sysctl_icmp_echo_ignore_broadcasts;
63extern int sysctl_icmp_ignore_bogus_error_responses;
64extern int sysctl_icmp_errors_use_inbound_ifaddr;
65extern int sysctl_icmp_ratelimit;
66extern int sysctl_icmp_ratemask;
67
68#endif /* _ICMP_H */