NetworkPkg/Ip4Dxe/Ip4Icmp.h

   1 /** @file
   2   Header file for ICMP protocol.
   3
   4 Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #ifndef __EFI_IP4_ICMP_H__
  10 #define __EFI_IP4_ICMP_H__
  11
  12   //
  13   // ICMP type definations
  14   //
  15 #define ICMP_ECHO_REPLY            0
  16 #define ICMP_DEST_UNREACHABLE      3
  17 #define ICMP_SOURCE_QUENCH         4
  18 #define ICMP_REDIRECT              5
  19 #define ICMP_ECHO_REQUEST          8
  20 #define ICMP_TIME_EXCEEDED         11
  21 #define ICMP_PARAMETER_PROBLEM     12
  22 #define ICMP_TIMESTAMP             13
  23 #define ICMP_INFO_REQUEST          15
  24 #define ICMP_INFO_REPLY            16
  25 #define ICMP_TYPE_MAX              ICMP_INFO_REPLY
  26
  27 #define ICMP_DEFAULT_CODE          0
  28
  29   //
  30   // ICMP code definations for ICMP_DEST_UNREACHABLE
  31   //
  32 #define ICMP_NET_UNREACHABLE       0
  33 #define ICMP_HOST_UNREACHABLE      1
  34 #define ICMP_PROTO_UNREACHABLE     2  // Host may generate
  35 #define ICMP_PORT_UNREACHABLE      3  // Host may generate
  36 #define ICMP_FRAGMENT_FAILED       4
  37 #define ICMP_SOURCEROUTE_FAILED    5  // Host may generate
  38 #define ICMP_NET_UNKNOWN           6
  39 #define ICMP_HOST_UNKNOWN          7
  40 #define ICMP_SOURCE_ISOLATED       8
  41 #define ICMP_NET_PROHIBITED        9
  42 #define ICMP_HOST_PROHIBITED       10
  43 #define ICMP_NET_UNREACHABLE_TOS   11
  44 #define ICMP_HOST_UNREACHABLE_TOS  12
  45
  46   //
  47   // ICMP code definations for ICMP_TIME_EXCEEDED
  48   //
  49 #define ICMP_TIMEOUT_IN_TRANSIT    0
  50 #define ICMP_TIMEOUT_REASSEMBLE    1  // Host may generate
  51
  52   //
  53   // ICMP code definations for ICMP_TIME_EXCEEDED
  54   //
  55 #define ICMP_NET_REDIRECT          0
  56 #define ICMP_HOST_REDIRECT         1
  57 #define ICMP_NET_TOS_REDIRECT      2
  58 #define ICMP_HOST_TOS_REDIRECT     3
  59
  60   //
  61   // ICMP message classes, each class of ICMP message shares
  62   // a common message format. INVALID_MESSAGE is only a flag.
  63   //
  64 #define ICMP_INVALID_MESSAGE       0
  65 #define ICMP_ERROR_MESSAGE         1
  66 #define ICMP_QUERY_MESSAGE         2
  67
  68 typedef struct {
  69   UINT8                   IcmpType;
  70   UINT8                   IcmpClass;
  71 } IP4_ICMP_CLASS;
  72
  73 extern IP4_ICMP_CLASS     mIcmpClass[];
  74 extern EFI_IP4_ICMP_TYPE  mIp4SupportedIcmp[];
  75
  76 /**
  77   Handle the ICMP packet. First validate the message format,
  78   then according to the message types, process it as query or
  79   error packet.
  80
  81   @param[in]  IpSb               The IP4 service that receivd the packet.
  82   @param[in]  Head               The IP4 head of the ICMP query packet.
  83   @param[in]  Packet             The content of the ICMP query with IP4 head
  84                                  removed.
  85
  86   @retval EFI_INVALID_PARAMETER  The packet is malformated.
  87   @retval EFI_SUCCESS            The ICMP message is successfully processed.
  88   @retval Others                 Failed to handle ICMP packet.
  89
  90 **/
  91 EFI_STATUS
  92 Ip4IcmpHandle (
  93   IN IP4_SERVICE            *IpSb,
  94   IN IP4_HEAD               *Head,
  95   IN NET_BUF                *Packet
  96   );
  97 #endif