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 #include <net/ip.h> 26 27 struct icmp_err { 28 int errno; 29 unsigned int fatal:1; 30 }; 31 32 extern const struct icmp_err icmp_err_convert[]; 33 #define ICMP_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.icmp_statistics, field) 34 #define __ICMP_INC_STATS(net, field) __SNMP_INC_STATS((net)->mib.icmp_statistics, field) 35 #define ICMPMSGOUT_INC_STATS(net, field) SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field+256) 36 #define ICMPMSGIN_INC_STATS(net, field) SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field) 37 38 struct dst_entry; 39 struct net_proto_family; 40 struct sk_buff; 41 struct net; 42 43 void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info, 44 const struct ip_options *opt); 45 static inline void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info) 46 { 47 __icmp_send(skb_in, type, code, info, &IPCB(skb_in)->opt); 48 } 49 50 int icmp_rcv(struct sk_buff *skb); 51 int icmp_err(struct sk_buff *skb, u32 info); 52 int icmp_init(void); 53 void icmp_out_count(struct net *net, unsigned char type); 54 55 #endif /* _ICMP_H */ 56