release/src-rt-6.x.4708/include/proto/bcmicmp.h

   1 /*
   2  * Fundamental constants relating to ICMP Protocol
   3  *
   4  * Copyright (C) 2012, Broadcom Corporation. All Rights Reserved.
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  13  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  15  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  16  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  *
  18  * $Id: bcmicmp.h 329768 2012-04-26 21:33:00Z $
  19  */
  20
  21 #ifndef _bcmicmp_h_
  22 #define _bcmicmp_h_
  23
  24 #ifndef _TYPEDEFS_H_
  25 #include <typedefs.h>
  26 #endif
  27
  28 /* This marks the start of a packed structure section. */
  29 #include <packed_section_start.h>
  30
  31 #define ICMP_TYPE_ECHO_REQUEST  8       /* ICMP type echo request */
  32 #define ICMP_TYPE_ECHO_REPLY            0       /* ICMP type echo reply */
  33
  34 #define ICMP_CHKSUM_OFFSET      2       /* ICMP body checksum offset */
  35
  36 /* ICMP6 error and control message types */
  37 #define ICMP6_DEST_UNREACHABLE          1
  38 #define ICMP6_PKT_TOO_BIG               2
  39 #define ICMP6_TIME_EXCEEDED             3
  40 #define ICMP6_PARAM_PROBLEM             4
  41 #define ICMP6_ECHO_REQUEST              128
  42 #define ICMP6_ECHO_REPLY                129
  43 #define ICMP_MCAST_LISTENER_QUERY       130
  44 #define ICMP_MCAST_LISTENER_REPORT      131
  45 #define ICMP_MCAST_LISTENER_DONE        132
  46 #define ICMP6_RTR_SOLICITATION          133
  47 #define ICMP6_RTR_ADVERTISEMENT         134
  48 #define ICMP6_NEIGH_SOLICITATION        135
  49 #define ICMP6_NEIGH_ADVERTISEMENT       136
  50 #define ICMP6_REDIRECT                  137
  51
  52 #define ICMP6_RTRSOL_OPT_OFFSET         8
  53 #define ICMP6_RTRADV_OPT_OFFSET         16
  54 #define ICMP6_NEIGHSOL_OPT_OFFSET       24
  55 #define ICMP6_NEIGHADV_OPT_OFFSET       24
  56 #define ICMP6_REDIRECT_OPT_OFFSET       40
  57
  58 BWL_PRE_PACKED_STRUCT struct icmp6_opt {
  59         uint8   type;           /* Option identifier */
  60         uint8   length;         /* Lenth including type and length */
  61         uint8   data[0];        /* Variable length data */
  62 } BWL_POST_PACKED_STRUCT;
  63
  64 #define ICMP6_OPT_TYPE_SRC_LINK_LAYER   1
  65 #define ICMP6_OPT_TYPE_TGT_LINK_LAYER   2
  66 #define ICMP6_OPT_TYPE_PREFIX_INFO      3
  67 #define ICMP6_OPT_TYPE_REDIR_HDR        4
  68 #define ICMP6_OPT_TYPE_MTU              5
  69
  70 /* These fields are stored in network order */
  71 BWL_PRE_PACKED_STRUCT struct bcmicmp_hdr {
  72         uint8   type;           /* Echo or Echo-reply */
  73         uint8   code;           /* Always 0 */
  74         uint16  chksum;         /* Icmp packet checksum */
  75 } BWL_POST_PACKED_STRUCT;
  76
  77 /* This marks the end of a packed structure section. */
  78 #include <packed_section_end.h>
  79
  80 #endif  /* #ifndef _bcmicmp_h_ */