From b46daf26fb545894cdeaee3c8e9d661dcdd72913 Mon Sep 17 00:00:00 2001
From: Hao Wu <hao.a.wu@intel.com>
Date: Wed, 10 Jun 2015 02:52:42 +0000
Subject: [PATCH] MdePkg: Add EFI REST Protocol definitions

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17605 6f19259b-4bc3-4df7-8a09-765794883524
---
 MdePkg/Include/Protocol/Rest.h | 94 ++++++++++++++++++++++++++++++++++
 MdePkg/MdePkg.dec              |  3 ++
 2 files changed, 97 insertions(+)
 create mode 100644 MdePkg/Include/Protocol/Rest.h

diff --git a/MdePkg/Include/Protocol/Rest.h b/MdePkg/Include/Protocol/Rest.h
new file mode 100644
index 0000000000..f3bee6c980
--- /dev/null
+++ b/MdePkg/Include/Protocol/Rest.h
@@ -0,0 +1,94 @@
+/** @file
+  This file defines the EFI REST Protocol interface.
+
+  Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+  This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution. The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+  @par Revision Reference:
+  This Protocol is introduced in UEFI Specification 2.5
+
+**/
+
+#ifndef __EFI_REST_PROTOCOL_H__
+#define __EFI_REST_PROTOCOL_H__
+
+#include <Protocol/Http.h>
+
+#define EFI_REST_PROTOCOL_GUID \
+  { \
+    0x0db48a36, 0x4e54, 0xea9c, {0x9b, 0x09, 0x1e, 0xa5, 0xbe, 0x3a, 0x66, 0x0b } \
+  }
+
+typedef struct _EFI_REST_PROTOCOL EFI_REST_PROTOCOL;
+
+/**
+  Provides a simple HTTP-like interface to send and receive resources from a REST
+  service.
+
+  The SendReceive() function sends an HTTP request to this REST service, and returns a
+  response when the data is retrieved from the service. RequestMessage contains the HTTP
+  request to the REST resource identified by RequestMessage.Request.Url. The
+  ResponseMessage is the returned HTTP response for that request, including any HTTP
+  status.
+
+  @param[in]  This                Pointer to EFI_REST_PROTOCOL instance for a particular
+                                  REST service.
+  @param[in]  RequestMessage      Pointer to the HTTP request data for this resource.
+  @param[out] ResponseMessage     Pointer to the HTTP response data obtained for this
+                                  requested.
+
+  @retval EFI_SUCCESS             Operation succeeded.
+  @retval EFI_INVALID_PARAMETER   This, RequestMessage, or ResponseMessage are NULL.
+  @retval EFI_DEVICE_ERROR        An unexpected system or network error occurred.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_REST_SEND_RECEIVE) (
+  IN  EFI_REST_PROTOCOL         *This,
+  IN  EFI_HTTP_MESSAGE          *RequestMessage,
+  OUT EFI_HTTP_MESSAGE          *ResponseMessage
+  );
+
+/**
+  The GetServiceTime() function is an optional interface to obtain the current time from
+  this REST service instance. If this REST service does not support retrieving the time,
+  this function returns EFI_UNSUPPORTED.
+
+  @param[in]  This                Pointer to EFI_REST_PROTOCOL instance.
+  @param[out] Time                A pointer to storage to receive a snapshot of the
+                                  current time of the REST service.
+
+  @retval EFI_SUCCESS             Operation succeeded
+  @retval EFI_INVALID_PARAMETER   This or Time are NULL.
+  @retval EFI_UNSUPPORTED         The RESTful service does not support returning the
+                                  time.
+  @retval EFI_DEVICE_ERROR        An unexpected system or network error occurred.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_REST_GET_TIME) (
+  IN  EFI_REST_PROTOCOL         *This,
+  OUT EFI_TIME                  *Time
+  );
+
+///
+/// The EFI REST protocol is designed to be used by EFI drivers and applications to send
+/// and receive resources from a RESTful service. This protocol abstracts REST
+/// (Representational State Transfer) client functionality. This EFI protocol could be
+/// implemented to use an underlying EFI HTTP protocol, or it could rely on other
+/// interfaces that abstract HTTP access to the resources.
+///
+struct _EFI_REST_PROTOCOL {
+  EFI_REST_SEND_RECEIVE         SendReceive;
+  EFI_REST_GET_TIME             GetServiceTime;
+};
+
+extern EFI_GUID gEfiRestProtocolGuid;
+
+#endif
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 16b522d93a..29d7e1126a 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -1561,6 +1561,9 @@
   ## Include/Protocol/Http.h
   gEfiHttpProtocolGuid                 = { 0x7a59b29b, 0x910b, 0x4171, {0x82, 0x42, 0xa8, 0x5a, 0x0d, 0xf2, 0x5b, 0x5b }}
 
+  ## Include/Protocol/Rest.h
+  gEfiRestProtocolGuid                 =  { 0x0db48a36, 0x4e54, 0xea9c, {0x9b, 0x09, 0x1e, 0xa5, 0xbe, 0x3a, 0x66, 0x0b }}
+
 #
 # [Error.gEfiMdePkgTokenSpaceGuid]
 #   0x80000001 | Invalid value provided.