include/net/icmp.h

   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 void 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 */