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.
6 * Definitions for the ICMP module.
8 * Version: @(#)icmp.h 1.0.4 05/13/93
10 * Authors: Ross Biro, <bir7@leland.Stanford.Edu>
11 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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.
21 #include <linux/config.h>
22 #include <linux/icmp.h>
23 #include <linux/skbuff.h>
26 #include <net/protocol.h>
35 extern struct icmp_err icmp_err_convert[];
36 DECLARE_SNMP_STAT(struct icmp_mib, icmp_statistics);
37 #define ICMP_INC_STATS(field) SNMP_INC_STATS(icmp_statistics, field)
38 #define ICMP_INC_STATS_BH(field) SNMP_INC_STATS_BH(icmp_statistics, field)
39 #define ICMP_INC_STATS_USER(field) SNMP_INC_STATS_USER(icmp_statistics, field)
40 #define ICMP_INC_STATS_FIELD(offt) \
41 (*((unsigned long *) ((void *) \
42 per_cpu_ptr(icmp_statistics[!in_softirq()],\
43 smp_processor_id()) + offt)))++
44 #define ICMP_INC_STATS_BH_FIELD(offt) \
45 (*((unsigned long *) ((void *) \
46 per_cpu_ptr(icmp_statistics[0], \
47 smp_processor_id()) + offt)))++
48 #define ICMP_INC_STATS_USER_FIELD(offt) \
49 (*((unsigned long *) ((void *) \
50 per_cpu_ptr(icmp_statistics[1], \
51 smp_processor_id()) + offt)))++
53 extern void icmp_send(struct sk_buff *skb_in, int type, int code, u32 info);
54 extern int icmp_rcv(struct sk_buff *skb);
55 extern int icmp_ioctl(struct sock *sk, int cmd, unsigned long arg);
56 extern void icmp_init(struct net_proto_family *ops);
58 /* Move into dst.h ? */
59 extern int xrlim_allow(struct dst_entry *dst, int timeout);
62 struct icmp_filter filter;
67 /* WARNING: don't change the layout of the members in raw_sock! */
70 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
71 struct ipv6_pinfo *pinet6;
77 #define raw4_sk(__sk) (&((struct raw_sock *)__sk)->raw4)