11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * INET An implementation of the TCP/IP protocol suite for the LINUX 31da177e4SLinus Torvalds * operating system. INET is implemented using the BSD Socket 41da177e4SLinus Torvalds * interface as the means of communication with the user level. 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Definitions for the ICMP module. 71da177e4SLinus Torvalds * 81da177e4SLinus Torvalds * Version: @(#)icmp.h 1.0.4 05/13/93 91da177e4SLinus Torvalds * 1002c30a84SJesper Juhl * Authors: Ross Biro 111da177e4SLinus Torvalds * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or 141da177e4SLinus Torvalds * modify it under the terms of the GNU General Public License 151da177e4SLinus Torvalds * as published by the Free Software Foundation; either version 161da177e4SLinus Torvalds * 2 of the License, or (at your option) any later version. 171da177e4SLinus Torvalds */ 181da177e4SLinus Torvalds #ifndef _ICMP_H 191da177e4SLinus Torvalds #define _ICMP_H 201da177e4SLinus Torvalds 211da177e4SLinus Torvalds #include <linux/config.h> 221da177e4SLinus Torvalds #include <linux/icmp.h> 231da177e4SLinus Torvalds 24*14c85021SArnaldo Carvalho de Melo #include <net/inet_sock.h> 251da177e4SLinus Torvalds #include <net/snmp.h> 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds struct icmp_err { 281da177e4SLinus Torvalds int errno; 291da177e4SLinus Torvalds unsigned fatal:1; 301da177e4SLinus Torvalds }; 311da177e4SLinus Torvalds 321da177e4SLinus Torvalds extern struct icmp_err icmp_err_convert[]; 331da177e4SLinus Torvalds DECLARE_SNMP_STAT(struct icmp_mib, icmp_statistics); 341da177e4SLinus Torvalds #define ICMP_INC_STATS(field) SNMP_INC_STATS(icmp_statistics, field) 351da177e4SLinus Torvalds #define ICMP_INC_STATS_BH(field) SNMP_INC_STATS_BH(icmp_statistics, field) 361da177e4SLinus Torvalds #define ICMP_INC_STATS_USER(field) SNMP_INC_STATS_USER(icmp_statistics, field) 371da177e4SLinus Torvalds 38*14c85021SArnaldo Carvalho de Melo struct dst_entry; 39*14c85021SArnaldo Carvalho de Melo struct net_proto_family; 40*14c85021SArnaldo Carvalho de Melo struct sk_buff; 41*14c85021SArnaldo Carvalho de Melo 421da177e4SLinus Torvalds extern void icmp_send(struct sk_buff *skb_in, int type, int code, u32 info); 431da177e4SLinus Torvalds extern int icmp_rcv(struct sk_buff *skb); 441da177e4SLinus Torvalds extern int icmp_ioctl(struct sock *sk, int cmd, unsigned long arg); 451da177e4SLinus Torvalds extern void icmp_init(struct net_proto_family *ops); 461da177e4SLinus Torvalds 471da177e4SLinus Torvalds /* Move into dst.h ? */ 481da177e4SLinus Torvalds extern int xrlim_allow(struct dst_entry *dst, int timeout); 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds struct raw_sock { 511da177e4SLinus Torvalds /* inet_sock has to be the first member */ 521da177e4SLinus Torvalds struct inet_sock inet; 531da177e4SLinus Torvalds struct icmp_filter filter; 541da177e4SLinus Torvalds }; 551da177e4SLinus Torvalds 561da177e4SLinus Torvalds static inline struct raw_sock *raw_sk(const struct sock *sk) 571da177e4SLinus Torvalds { 581da177e4SLinus Torvalds return (struct raw_sock *)sk; 591da177e4SLinus Torvalds } 601da177e4SLinus Torvalds 6120380731SArnaldo Carvalho de Melo extern int sysctl_icmp_echo_ignore_all; 6220380731SArnaldo Carvalho de Melo extern int sysctl_icmp_echo_ignore_broadcasts; 6320380731SArnaldo Carvalho de Melo extern int sysctl_icmp_ignore_bogus_error_responses; 6420380731SArnaldo Carvalho de Melo extern int sysctl_icmp_errors_use_inbound_ifaddr; 6520380731SArnaldo Carvalho de Melo extern int sysctl_icmp_ratelimit; 6620380731SArnaldo Carvalho de Melo extern int sysctl_icmp_ratemask; 6720380731SArnaldo Carvalho de Melo 681da177e4SLinus Torvalds #endif /* _ICMP_H */ 69