1 files changed, 97 insertions, 0 deletions
diff --git a/NetworkPkg/Ip4Dxe/Ip4Icmp.h b/NetworkPkg/Ip4Dxe/Ip4Icmp.h
new file mode 100644
index 0000000000..922886a96e
--- /dev/null
+++ b/NetworkPkg/Ip4Dxe/Ip4Icmp.h
@@ -0,0 +1,97 @@
+/** @file
+  Header file for ICMP protocol.
+
+Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef __EFI_IP4_ICMP_H__
+#define __EFI_IP4_ICMP_H__
+
+  //
+  // ICMP type definations
+  //
+#define ICMP_ECHO_REPLY            0
+#define ICMP_DEST_UNREACHABLE      3
+#define ICMP_SOURCE_QUENCH         4
+#define ICMP_REDIRECT              5
+#define ICMP_ECHO_REQUEST          8
+#define ICMP_TIME_EXCEEDED         11
+#define ICMP_PARAMETER_PROBLEM     12
+#define ICMP_TIMESTAMP             13
+#define ICMP_INFO_REQUEST          15
+#define ICMP_INFO_REPLY            16
+#define ICMP_TYPE_MAX              ICMP_INFO_REPLY
+
+#define ICMP_DEFAULT_CODE          0
+
+  //
+  // ICMP code definations for ICMP_DEST_UNREACHABLE
+  //
+#define ICMP_NET_UNREACHABLE       0
+#define ICMP_HOST_UNREACHABLE      1
+#define ICMP_PROTO_UNREACHABLE     2  // Host may generate
+#define ICMP_PORT_UNREACHABLE      3  // Host may generate
+#define ICMP_FRAGMENT_FAILED       4
+#define ICMP_SOURCEROUTE_FAILED    5  // Host may generate
+#define ICMP_NET_UNKNOWN           6
+#define ICMP_HOST_UNKNOWN          7
+#define ICMP_SOURCE_ISOLATED       8
+#define ICMP_NET_PROHIBITED        9
+#define ICMP_HOST_PROHIBITED       10
+#define ICMP_NET_UNREACHABLE_TOS   11
+#define ICMP_HOST_UNREACHABLE_TOS  12
+
+  //
+  // ICMP code definations for ICMP_TIME_EXCEEDED
+  //
+#define ICMP_TIMEOUT_IN_TRANSIT    0
+#define ICMP_TIMEOUT_REASSEMBLE    1  // Host may generate
+
+  //
+  // ICMP code definations for ICMP_TIME_EXCEEDED
+  //
+#define ICMP_NET_REDIRECT          0
+#define ICMP_HOST_REDIRECT         1
+#define ICMP_NET_TOS_REDIRECT      2
+#define ICMP_HOST_TOS_REDIRECT     3
+
+  //
+  // ICMP message classes, each class of ICMP message shares
+  // a common message format. INVALID_MESSAGE is only a flag.
+  //
+#define ICMP_INVALID_MESSAGE       0
+#define ICMP_ERROR_MESSAGE         1
+#define ICMP_QUERY_MESSAGE         2
+
+typedef struct {
+  UINT8                   IcmpType;
+  UINT8                   IcmpClass;
+} IP4_ICMP_CLASS;
+
+extern IP4_ICMP_CLASS     mIcmpClass[];
+extern EFI_IP4_ICMP_TYPE  mIp4SupportedIcmp[];
+
+/**
+  Handle the ICMP packet. First validate the message format,
+  then according to the message types, process it as query or
+  error packet.
+
+  @param[in]  IpSb               The IP4 service that receivd the packet.
+  @param[in]  Head               The IP4 head of the ICMP query packet.
+  @param[in]  Packet             The content of the ICMP query with IP4 head
+                                 removed.
+
+  @retval EFI_INVALID_PARAMETER  The packet is malformated.
+  @retval EFI_SUCCESS            The ICMP message is successfully processed.
+  @retval Others                 Failed to handle ICMP packet.
+
+**/
+EFI_STATUS
+Ip4IcmpHandle (
+  IN IP4_SERVICE            *IpSb,
+  IN IP4_HEAD               *Head,
+  IN NET_BUF                *Packet
+  );
+#endif