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/icmp.h> 22 23 #include <net/inet_sock.h> 24 #include <net/snmp.h> 25 26 struct icmp_err { 27 int errno; 28 unsigned fatal:1; 29 }; 30 31 extern struct icmp_err icmp_err_convert[]; 32 DECLARE_SNMP_STAT(struct icmp_mib, icmp_statistics); 33 DECLARE_SNMP_STAT(struct icmpmsg_mib, icmpmsg_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 ICMPMSGOUT_INC_STATS(field) SNMP_INC_STATS(icmpmsg_statistics, field+256) 37 #define ICMPMSGIN_INC_STATS_BH(field) SNMP_INC_STATS_BH(icmpmsg_statistics, field) 38 39 struct dst_entry; 40 struct net_proto_family; 41 struct sk_buff; 42 struct net; 43 44 extern void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info); 45 extern int icmp_rcv(struct sk_buff *skb); 46 extern int icmp_ioctl(struct sock *sk, int cmd, unsigned long arg); 47 extern int icmp_init(void); 48 extern void icmp_out_count(struct net *net, unsigned char type); 49 50 /* Move into dst.h ? */ 51 extern int xrlim_allow(struct dst_entry *dst, int timeout); 52 53 struct raw_sock { 54 /* inet_sock has to be the first member */ 55 struct inet_sock inet; 56 struct icmp_filter filter; 57 }; 58 59 static inline struct raw_sock *raw_sk(const struct sock *sk) 60 { 61 return (struct raw_sock *)sk; 62 } 63 64 #endif /* _ICMP_H */ 65