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TOMOYO Linux Cross Reference
Linux/include/uapi/linux/icmp.h

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  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 protocol.
  7  *
  8  * Version:     @(#)icmp.h      1.0.3   04/28/93
  9  *
 10  * Author:      Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
 11  *
 12  *              This program is free software; you can redistribute it and/or
 13  *              modify it under the terms of the GNU General Public License
 14  *              as published by the Free Software Foundation; either version
 15  *              2 of the License, or (at your option) any later version.
 16  */
 17 #ifndef _UAPI_LINUX_ICMP_H
 18 #define _UAPI_LINUX_ICMP_H
 19 
 20 #include <linux/types.h>
 21 
 22 #define ICMP_ECHOREPLY          0       /* Echo Reply                   */
 23 #define ICMP_DEST_UNREACH       3       /* Destination Unreachable      */
 24 #define ICMP_SOURCE_QUENCH      4       /* Source Quench                */
 25 #define ICMP_REDIRECT           5       /* Redirect (change route)      */
 26 #define ICMP_ECHO               8       /* Echo Request                 */
 27 #define ICMP_TIME_EXCEEDED      11      /* Time Exceeded                */
 28 #define ICMP_PARAMETERPROB      12      /* Parameter Problem            */
 29 #define ICMP_TIMESTAMP          13      /* Timestamp Request            */
 30 #define ICMP_TIMESTAMPREPLY     14      /* Timestamp Reply              */
 31 #define ICMP_INFO_REQUEST       15      /* Information Request          */
 32 #define ICMP_INFO_REPLY         16      /* Information Reply            */
 33 #define ICMP_ADDRESS            17      /* Address Mask Request         */
 34 #define ICMP_ADDRESSREPLY       18      /* Address Mask Reply           */
 35 #define NR_ICMP_TYPES           18
 36 
 37 
 38 /* Codes for UNREACH. */
 39 #define ICMP_NET_UNREACH        0       /* Network Unreachable          */
 40 #define ICMP_HOST_UNREACH       1       /* Host Unreachable             */
 41 #define ICMP_PROT_UNREACH       2       /* Protocol Unreachable         */
 42 #define ICMP_PORT_UNREACH       3       /* Port Unreachable             */
 43 #define ICMP_FRAG_NEEDED        4       /* Fragmentation Needed/DF set  */
 44 #define ICMP_SR_FAILED          5       /* Source Route failed          */
 45 #define ICMP_NET_UNKNOWN        6
 46 #define ICMP_HOST_UNKNOWN       7
 47 #define ICMP_HOST_ISOLATED      8
 48 #define ICMP_NET_ANO            9
 49 #define ICMP_HOST_ANO           10
 50 #define ICMP_NET_UNR_TOS        11
 51 #define ICMP_HOST_UNR_TOS       12
 52 #define ICMP_PKT_FILTERED       13      /* Packet filtered */
 53 #define ICMP_PREC_VIOLATION     14      /* Precedence violation */
 54 #define ICMP_PREC_CUTOFF        15      /* Precedence cut off */
 55 #define NR_ICMP_UNREACH         15      /* instead of hardcoding immediate value */
 56 
 57 /* Codes for REDIRECT. */
 58 #define ICMP_REDIR_NET          0       /* Redirect Net                 */
 59 #define ICMP_REDIR_HOST         1       /* Redirect Host                */
 60 #define ICMP_REDIR_NETTOS       2       /* Redirect Net for TOS         */
 61 #define ICMP_REDIR_HOSTTOS      3       /* Redirect Host for TOS        */
 62 
 63 /* Codes for TIME_EXCEEDED. */
 64 #define ICMP_EXC_TTL            0       /* TTL count exceeded           */
 65 #define ICMP_EXC_FRAGTIME       1       /* Fragment Reass time exceeded */
 66 
 67 
 68 struct icmphdr {
 69   __u8          type;
 70   __u8          code;
 71   __sum16       checksum;
 72   union {
 73         struct {
 74                 __be16  id;
 75                 __be16  sequence;
 76         } echo;
 77         __be32  gateway;
 78         struct {
 79                 __be16  __unused;
 80                 __be16  mtu;
 81         } frag;
 82   } un;
 83 };
 84 
 85 
 86 /*
 87  *      constants for (set|get)sockopt
 88  */
 89 
 90 #define ICMP_FILTER                     1
 91 
 92 struct icmp_filter {
 93         __u32           data;
 94 };
 95 
 96 
 97 #endif /* _UAPI_LINUX_ICMP_H */
 98 

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