[edk2-devel] [edk2-redfish-client][PATCH 5/8] RedfishClientPkg: Add RedfishLib.h

Chang, Abner via groups.io abner.chang=amd.com at groups.io
Fri May 5 00:56:18 UTC 2023


[AMD Official Use Only - General]

Reviewed-by: Abner Chang <abner.chang at hpe.com>

> -----Original Message-----
> From: Nickle Wang <nicklew at nvidia.com>
> Sent: Thursday, May 4, 2023 10:25 PM
> To: devel at edk2.groups.io
> Cc: Chang, Abner <Abner.Chang at amd.com>; Igor Kulchytskyy
> <igork at ami.com>
> Subject: [edk2-redfish-client][PATCH 5/8] RedfishClientPkg: Add RedfishLib.h
> 
> Caution: This message originated from an External Source. Use proper
> caution when opening attachments, clicking links, or responding.
> 
> 
> RedfishLib.h is the header file of RedfishLib library under RedfishClientPkg.
> RedfishLib is used by EDKII Redfish feature drivers.
> 
> Signed-off-by: Nickle Wang <nicklew at nvidia.com>
> Cc: Abner Chang <abner.chang at amd.com>
> Cc: Igor Kulchytskyy <igork at ami.com>
> ---
>  .../PrivateInclude/Library/RedfishLib.h       | 616 ++++++++++++++++++
>  1 file changed, 616 insertions(+)
>  create mode 100644 RedfishClientPkg/PrivateInclude/Library/RedfishLib.h
> 
> diff --git a/RedfishClientPkg/PrivateInclude/Library/RedfishLib.h
> b/RedfishClientPkg/PrivateInclude/Library/RedfishLib.h
> new file mode 100644
> index 00000000..b2488abb
> --- /dev/null
> +++ b/RedfishClientPkg/PrivateInclude/Library/RedfishLib.h
> @@ -0,0 +1,616 @@
> +/** @file
> +  This library provides a set of utility APIs that allow to
> +create/read/update/delete
> +  (CRUD) Redfish resources and provide basic query abilities by using
> +[URI/RedPath]
> +  (https://github.com/DMTF/libredfish).
> +
> +  The query language is based on XPath (https://www.w3.org/TR/1999/REC-
> xpath-19991116/).
> +  This library and query language essentially treat the entire Redfish
> + Service like it  was a single JSON document. In other words whenever
> + it encounters an odata.id in JSON  document, it will retrieve the new
> + JSON document (if needed). We name the path as
> +  RedPath:
> +
> +  Expression       Description
> +
> +  nodename         Selects the JSON entity with the name "nodename".
> +                   If the value of nodename is an object with "@odata.id",
> +                   it will continue get the value from "@odata.id".
> +
> +  /                Selects from the root node
> +
> +  [index]           Selects the index number JSON entity from an array or
> +                   object. If the JSON entity is one collection (has
> +                   Members & Members at odata.count), means to get the index
> +                   member in "Members". Index number >=1, 1 means to return
> +                   the first instance.
> +
> +  [XXX]            Operation on JSON entity.
> +                   If the JSON entity is one collection (has Members &
> +                   Members at odata.count), means to get all elements in
> +                   "Members". If the JSON entity is one array, means to
> +                   get all elements in array. Others will match the nodename
> +                   directly (e.g. JSON_OBJECT, JSON_STRING, JSON_TRUE,
> +                   JSON_FALSE, JSON_INTEGER).
> +
> +  [nodename]       Selects all the elements from an JSON entity that
> +                   contain a property named "nodename"
> +
> +  [name=value]     Selects all the elements from an JSON entity where
> +                   the property "name" is equal to "value"
> +
> +  [name~value]     Selects all the elements from an JSON entity where
> +                   the string property "name" is equal to "value" using
> +                   case insensitive comparison.
> +
> +  [name<value]     Selects all the elements from an JSON entity where
> +                   the property "name" is less than "value"
> +
> +  [name<=value]    Selects all the elements from an JSON entity where
> +                   the property "name" is less than or equal to "value"
> +
> +  [name>value]     Selects all the elements from an JSON entity where
> +                   the property "name" is greater than "value"
> +
> +  [name>=value]    Selects all the elements from an JSON entity where
> +                   the property "name" is greater than or equal to "value"
> +
> +  Some examples:
> +
> +    /v1/Chassis[1]        - Will return the first Chassis instance.
> +    /v1/Chassis[SKU=1234] - Will return all Chassis instances with a SKU field
> equal to 1234.
> +    /v1/Systems[Storage]  - Will return all the System instances that have
> Storage field populated.
> +
> +  Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
> +  (C) Copyright 2021 Hewlett Packard Enterprise Development LP<BR>
> +
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#ifndef REDFISH_LIB_H_
> +#define REDFISH_LIB_H_
> +
> +#include <Library/JsonLib.h>
> +
> +#include <Protocol/Http.h>
> +#include <Protocol/EdkIIRedfishConfigHandler.h>
> +
> +#define ODATA_TYPE_NAME_MAX_SIZE  128
> +#define ODATA_TYPE_MAX_SIZE       128
> +
> +///
> +/// Library class public defines
> +///
> +typedef  VOID  *REDFISH_SERVICE;
> +typedef  VOID  *REDFISH_PAYLOAD;
> +
> +///
> +/// Library class public structures/unions /// typedef struct {
> +  EFI_HTTP_STATUS_CODE    *StatusCode;
> +  UINTN                   HeaderCount;
> +  EFI_HTTP_HEADER         *Headers;
> +  REDFISH_PAYLOAD         Payload;
> +} REDFISH_RESPONSE;
> +
> +///
> +/// Odata type-name mapping structure.
> +///
> +typedef struct {
> +  CONST CHAR8    OdataTypeName[ODATA_TYPE_NAME_MAX_SIZE];
> +  CONST CHAR8    OdataType[ODATA_TYPE_MAX_SIZE];
> +} REDFISH_ODATA_TYPE_MAPPING;
> +
> +/**
> +  This function uses REST EX protocol provided in RedfishConfigServiceInfo.
> +  The service enumerator will also handle the authentication flow
> +automatically
> +  if HTTP basic auth or Redfish session login is configured to use.
> +
> +  Callers are responsible for freeing the returned service by
> RedfishCleanupService().
> +
> +  @param[in]  RedfishConfigServiceInfo Redfish service information the EFI
> Redfish
> +                                       feature driver communicates with.
> +
> +  @return     New created Redfish Service, or NULL if error happens.
> +
> +**/
> +REDFISH_SERVICE
> +EFIAPI
> +RedfishCreateService (
> +  IN  REDFISH_CONFIG_SERVICE_INFORMATION  *RedfishConfigServiceInfo
> +  );
> +
> +/**
> +  Free the Service and all its related resources.
> +
> +  @param[in]    RedfishService     The Service to access the Redfish resources.
> +
> +**/
> +VOID
> +EFIAPI
> +RedfishCleanupService (
> +  IN REDFISH_SERVICE  RedfishService
> +  );
> +
> +/**
> +  Create REDFISH_PAYLOAD instance in local with JSON represented
> +resource value and
> +  the Redfish Service.
> +
> +  The returned REDFISH_PAYLOAD can be used to create or update Redfish
> + resource in  server side.
> +
> +  Callers are responsible for freeing the returned payload by
> RedfishCleanupPayload().
> +
> +  @param[in]    Value                 JSON Value of the redfish resource.
> +  @param[in]    RedfishService        The Service to access the Redfish
> resources.
> +
> +  @return     REDFISH_PAYLOAD instance of the resource, or NULL if error
> happens.
> +
> +**/
> +REDFISH_PAYLOAD
> +EFIAPI
> +RedfishCreatePayload (
> +  IN EDKII_JSON_VALUE  Value,
> +  IN REDFISH_SERVICE   RedfishService
> +  );
> +
> +/**
> +  Free the RedfishPayload and all its related resources.
> +
> +  @param[in]    Payload        Payload to be freed.
> +
> +**/
> +VOID
> +EFIAPI
> +RedfishCleanupPayload (
> +  IN REDFISH_PAYLOAD  Payload
> +  );
> +
> +/**
> +  This function returns the decoded JSON value of a REDFISH_PAYLOAD.
> +
> +  Caller doesn't need to free the returned JSON value because it will
> + be released  in corresponding RedfishCleanupPayload() function.
> +
> +  @param[in]    Payload     A REDFISH_PAYLOAD instance.
> +
> +  @return     Decoded JSON value of the payload.
> +
> +**/
> +EDKII_JSON_VALUE
> +EFIAPI
> +RedfishJsonInPayload (
> +  IN REDFISH_PAYLOAD  Payload
> +  );
> +
> +/**
> +  Fill the input RedPath string with system UUID from SMBIOS table or
> +use the customized
> +  ID if  FromSmbios == FALSE.
> +
> +  This is a helper function to build a RedPath string which can be used
> + to address  a Redfish resource for this computer system. The input
> + PathString must have a Systems  note in format of "Systems[UUID=%g]" or
> "Systems[UUID~%g]" to fill the UUID value.
> +
> +  Example:
> +    Use "/v1/Systems[UUID=%g]/Bios" to build a RedPath to address the
> "Bios" resource
> +    for this computer system.
> +
> +  @param[in]    RedPath        RedPath format to be build.
> +  @param[in]    FromSmbios     Get system UUID from SMBIOS as computer
> system instance ID.
> +  @param[in]    IdString       The computer system instance ID.
> +
> +  @return     Full RedPath with system UUID inside, or NULL if error happens.
> +
> +**/
> +CHAR8 *
> +EFIAPI
> +RedfishBuildPathWithSystemUuid (
> +  IN CONST CHAR8  *RedPath,
> +  IN BOOLEAN      FromSmbios,
> +  IN CHAR8        *IdString OPTIONAL
> +  );
> +
> +/**
> +  Get a redfish response addressed by a RedPath string, including HTTP
> +StatusCode, Headers
> +  and Payload which record any HTTP response messages.
> +
> +  Callers are responsible for freeing the HTTP StatusCode, Headers and
> + Payload returned in  redfish response data.
> +
> +  @param[in]    RedfishService        The Service to access the Redfish
> resources.
> +  @param[in]    RedPath               RedPath string to address a resource, must
> start
> +                                      from the root node.
> +  @param[out]   RedResponse           Pointer to the Redfish response data.
> +
> +  @retval EFI_SUCCESS             The opeartion is successful, indicates the HTTP
> StatusCode is not
> +                                  NULL and the value is 2XX. The corresponding redfish
> resource has
> +                                  been returned in Payload within RedResponse.
> +  @retval EFI_INVALID_PARAMETER   RedfishService, RedPath, or
> RedResponse is NULL.
> +  @retval EFI_DEVICE_ERROR        An unexpected system or network error
> occurred. Callers can get
> +                                  more error info from returned HTTP StatusCode, Headers
> and Payload
> +                                  within RedResponse:
> +                                  1. If the returned Payload is NULL, indicates any error
> happen.
> +                                  2. If the returned StatusCode is NULL, indicates any error
> happen.
> +                                  3. If the returned StatusCode is not 2XX, indicates any error
> happen.
> +**/
> +EFI_STATUS
> +EFIAPI
> +RedfishGetByService (
> +  IN     REDFISH_SERVICE   RedfishService,
> +  IN     CONST CHAR8       *RedPath,
> +  OUT    REDFISH_RESPONSE  *RedResponse
> +  );
> +
> +/**
> +  Get a redfish response addressed by URI, including HTTP StatusCode,
> +Headers
> +  and Payload which record any HTTP response messages.
> +
> +  Callers are responsible for freeing the HTTP StatusCode, Headers and
> + Payload returned in  redfish response data.
> +
> +  @param[in]    RedfishService    The Service to access the URI resources.
> +  @param[in]    URI               String to address a resource.
> +  @param[out]   RedResponse       Pointer to the Redfish response data.
> +
> +  @retval EFI_SUCCESS             The opeartion is successful, indicates the HTTP
> StatusCode is not
> +                                  NULL and the value is 2XX. The corresponding redfish
> resource has
> +                                  been returned in Payload within RedResponse.
> +  @retval EFI_INVALID_PARAMETER   RedfishService, RedPath, or
> RedResponse is NULL.
> +  @retval EFI_DEVICE_ERROR        An unexpected system or network error
> occurred. Callers can get
> +                                  more error info from returned HTTP StatusCode, Headers
> and Payload
> +                                  within RedResponse:
> +                                  1. If the returned Payload is NULL, indicates any error
> happen.
> +                                  2. If the returned StatusCode is NULL, indicates any error
> happen.
> +                                  3. If the returned StatusCode is not 2XX, indicates any error
> happen.
> +**/
> +EFI_STATUS
> +EFIAPI
> +RedfishGetByUri (
> +  IN     REDFISH_SERVICE   RedfishService,
> +  IN     CONST CHAR8       *Uri,
> +  OUT    REDFISH_RESPONSE  *RedResponse
> +  );
> +
> +/**
> +  Get a redfish response addressed by the input Payload and relative
> +RedPath string,
> +  including HTTP StatusCode, Headers and Payload which record any HTTP
> response messages.
> +
> +  Callers are responsible for freeing the HTTP StatusCode, Headers and
> + Payload returned in  redfish response data.
> +
> +  @param[in]    Payload           A existing REDFISH_PAYLOAD instance.
> +  @param[in]    RedPath           Relative RedPath string to address a resource
> inside Payload.
> +  @param[out]   RedResponse       Pointer to the Redfish response data.
> +
> +  @retval EFI_SUCCESS             The opeartion is successful:
> +                                  1. The HTTP StatusCode is NULL and the returned Payload
> in
> +                                  RedResponse is not NULL, indicates the Redfish resource
> has
> +                                  been parsed from the input payload directly.
> +                                  2. The HTTP StatusCode is not NULL and the value is 2XX,
> +                                  indicates the corresponding redfish resource has been
> returned
> +                                  in Payload within RedResponse.
> +  @retval EFI_INVALID_PARAMETER   Payload, RedPath, or RedResponse is
> NULL.
> +  @retval EFI_DEVICE_ERROR        An unexpected system or network error
> occurred. Callers can get
> +                                  more error info from returned HTTP StatusCode, Headers
> and Payload
> +                                  within RedResponse:
> +                                  1. If the returned Payload is NULL, indicates any error
> happen.
> +                                  2. If StatusCode is not NULL and the returned value of
> StatusCode
> +                                     is not 2XX, indicates any error happen.
> +**/
> +EFI_STATUS
> +EFIAPI
> +RedfishGetByPayload (
> +  IN     REDFISH_PAYLOAD   Payload,
> +  IN     CONST CHAR8       *RedPath,
> +  OUT    REDFISH_RESPONSE  *RedResponse
> +  );
> +
> +/**
> +  Use HTTP PATCH to perform updates on pre-existing Redfish resource.
> +
> +  This function uses the RedfishService to patch a Redfish resource
> + addressed by  Uri (only the relative path is required). Changes to one
> + or more properties within  the target resource are represented in the
> + input Content, properties not specified  in Content won't be changed
> + by this request. The corresponding redfish response will  returned,
> + including HTTP StatusCode, Headers and Payload which record any HTTP
> response  messages.
> +
> +  Callers are responsible for freeing the HTTP StatusCode, Headers and
> + Payload returned in  redfish response data.
> +
> +  @param[in]    RedfishService        The Service to access the Redfish
> resources.
> +  @param[in]    Uri                   Relative path to address the resource.
> +  @param[in]    Content               JSON represented properties to be update.
> +  @param[out]   RedResponse           Pointer to the Redfish response data.
> +
> +  @retval EFI_SUCCESS             The opeartion is successful, indicates the HTTP
> StatusCode is not
> +                                  NULL and the value is 2XX. The Redfish resource will be
> returned
> +                                  in Payload within RedResponse if server send it back in the
> HTTP
> +                                  response message body.
> +  @retval EFI_INVALID_PARAMETER   RedfishService, Uri, Content, or
> RedResponse is NULL.
> +  @retval EFI_DEVICE_ERROR        An unexpected system or network error
> occurred. Callers can get
> +                                  more error info from returned HTTP StatusCode, Headers
> and Payload
> +                                  within RedResponse:
> +                                  1. If the returned StatusCode is NULL, indicates any error
> happen.
> +                                  2. If the returned StatusCode is not NULL and the value is
> not 2XX,
> +                                     indicates any error happen.
> +**/
> +EFI_STATUS
> +EFIAPI
> +RedfishPatchToUri (
> +  IN     REDFISH_SERVICE   RedfishService,
> +  IN     CONST CHAR8       *Uri,
> +  IN     CONST CHAR8       *Content,
> +  OUT    REDFISH_RESPONSE  *RedResponse
> +  );
> +
> +/**
> +  Use HTTP PATCH to perform updates on target payload. Patch to odata.id
> in Payload directly.
> +
> +  This function uses the Payload to patch the Target. Changes to one or
> + more properties  within the target resource are represented in the
> + input Payload, properties not specified  in Payload won't be changed
> + by this request. The corresponding redfish response will  returned,
> + including HTTP StatusCode, Headers and Payload which record any HTTP
> response  messages.
> +
> +  Callers are responsible for freeing the HTTP StatusCode, Headers and
> + Payload returned in  redfish response data.
> +
> +  @param[in]    Target           The target payload to be updated.
> +  @param[in]    Payload          Palyoad with properties to be changed.
> +  @param[out]   RedResponse      Pointer to the Redfish response data.
> +
> +  @retval EFI_SUCCESS             The opeartion is successful, indicates the HTTP
> StatusCode is not
> +                                  NULL and the value is 2XX. The Redfish resource will be
> returned
> +                                  in Payload within RedResponse if server send it back in the
> HTTP
> +                                  response message body.
> +  @retval EFI_INVALID_PARAMETER   Target, Payload, or RedResponse is
> NULL.
> +  @retval EFI_DEVICE_ERROR        An unexpected system or network error
> occurred. Callers can get
> +                                  more error info from returned HTTP StatusCode, Headers
> and Payload
> +                                  within RedResponse:
> +                                  1. If the returned StatusCode is NULL, indicates any error
> happen.
> +                                  2. If the returned StatusCode is not NULL and the value is
> not 2XX,
> +                                     indicates any error happen.
> +**/
> +EFI_STATUS
> +EFIAPI
> +RedfishPatchToPayload (
> +  IN     REDFISH_PAYLOAD   Target,
> +  IN     REDFISH_PAYLOAD   Payload,
> +  OUT    REDFISH_RESPONSE  *RedResponse
> +  );
> +
> +/**
> +  Use HTTP POST to create a new resource in target payload.
> +
> +  The POST request should be submitted to the Resource Collection in
> + which the new resource  is to belong. The Resource Collection is
> + addressed by Target payload. The Redfish may  ignore any service
> + controlled properties. The corresponding redfish response will returned,
> including HTTP StatusCode, Headers and Payload which record any HTTP
> response messages.
> +
> +  Callers are responsible for freeing the HTTP StatusCode, Headers and
> + Payload returned in  redfish response data.
> +
> +  @param[in]    Target          Target payload of the Resource Collection.
> +  @param[in]    Payload         The new resource to be created.
> +  @param[out]   RedResponse     Pointer to the Redfish response data.
> +
> +  @retval EFI_SUCCESS             The opeartion is successful, indicates the HTTP
> StatusCode is not
> +                                  NULL and the value is 2XX. The Redfish resource will be
> returned
> +                                  in Payload within RedResponse if server send it back in the
> HTTP
> +                                  response message body.
> +  @retval EFI_INVALID_PARAMETER   Target, Payload, or RedResponse is
> NULL.
> +  @retval EFI_DEVICE_ERROR        An unexpected system or network error
> occurred. Callers can get
> +                                  more error info from returned HTTP StatusCode, Headers
> and Payload
> +                                  within RedResponse:
> +                                  1. If the returned StatusCode is NULL, indicates any error
> happen.
> +                                  2. If the returned StatusCode is not NULL and the value is
> not 2XX,
> +                                     indicates any error happen.
> +**/
> +EFI_STATUS
> +EFIAPI
> +RedfishPostToPayload (
> +  IN     REDFISH_PAYLOAD   Target,
> +  IN     REDFISH_PAYLOAD   Payload,
> +  OUT    REDFISH_RESPONSE  *RedResponse
> +  );
> +
> +/**
> +  Use HTTP DELETE to remove a resource.
> +
> +  This function uses the RedfishService to remove a Redfish resource
> + which is addressed  by input Uri (only the relative path is required).
> + The corresponding redfish response will  returned, including HTTP
> + StatusCode, Headers and Payload which record any HTTP response
> messages.
> +
> +  Callers are responsible for freeing the HTTP StatusCode, Headers and
> + Payload returned in  redfish response data.
> +
> +  @param[in]    RedfishService        The Service to access the Redfish
> resources.
> +  @param[in]    Uri                   Relative path to address the resource.
> +  @param[out]   RedResponse           Pointer to the Redfish response data.
> +
> +  @retval EFI_SUCCESS             The opeartion is successful, indicates the HTTP
> StatusCode is not
> +                                  NULL and the value is 2XX, the Redfish resource has been
> removed.
> +                                  If there is any message returned from server, it will be
> returned
> +                                  in Payload within RedResponse.
> +  @retval EFI_INVALID_PARAMETER   RedfishService, Uri, or RedResponse is
> NULL.
> +  @retval EFI_DEVICE_ERROR        An unexpected system or network error
> occurred. Callers can get
> +                                  more error info from returned HTTP StatusCode, Headers
> and Payload
> +                                  within RedResponse:
> +                                  1. If the returned StatusCode is NULL, indicates any error
> happen.
> +                                  2. If the returned StatusCode is not NULL and the value is
> not 2XX,
> +                                     indicates any error happen.
> +**/
> +EFI_STATUS
> +EFIAPI
> +RedfishDeleteByUri (
> +  IN     REDFISH_SERVICE   RedfishService,
> +  IN     CONST CHAR8       *Uri,
> +  OUT    REDFISH_RESPONSE  *RedResponse
> +  );
> +
> +/**
> +  Dump text in fractions.
> +
> +  @param[in]  String   ASCII string to dump.
> +
> +**/
> +VOID
> +RedfishDumpJsonStringFractions (
> +  IN CHAR8  *String
> +  );
> +
> +/**
> +  Extract the JSON text content from REDFISH_PAYLOAD and dump to debug
> console.
> +
> +  @param[in]  Payload       The Redfish payload to dump.
> +
> +**/
> +VOID
> +RedfishDumpPayload (
> +  IN REDFISH_PAYLOAD  Payload
> +  );
> +
> +/**
> +  Dump text in JSON value.
> +
> +  @param[in]  JsonValue       The Redfish JSON value to dump.
> +
> +**/
> +VOID
> +RedfishDumpJson (
> +  IN EDKII_JSON_VALUE  JsonValue
> +  );
> +
> +/**
> +  This function will cleanup the HTTP header and Redfish payload resources.
> +
> +  @param[in]  StatusCode        The status code in HTTP response message.
> +  @param[in]  HeaderCount       Number of HTTP header structures in
> Headers list.
> +  @param[in]  Headers           Array containing list of HTTP headers.
> +  @param[in]  Payload           The Redfish payload to dump.
> +
> +**/
> +VOID
> +RedfishFreeResponse (
> +  IN EFI_HTTP_STATUS_CODE  *StatusCode,
> +  IN UINTN                 HeaderCount,
> +  IN EFI_HTTP_HEADER       *Headers,
> +  IN REDFISH_PAYLOAD       Payload
> +  );
> +
> +/**
> +  Check if the "@odata.type" in Payload is valid or not.
> +
> +  @param[in]  Payload                  The Redfish payload to be checked.
> +  @param[in]  OdataTypeName            OdataType will be retrived from
> mapping list.
> +  @param[in]  OdataTypeMappingList     The list of OdataType.
> +  @param[in]  OdataTypeMappingListSize The number of mapping list
> +
> +  @return TRUE if the "@odata.type" in Payload is valid, otherwise FALSE.
> +
> +**/
> +BOOLEAN
> +RedfishIsValidOdataType (
> +  IN REDFISH_PAYLOAD             Payload,
> +  IN CONST CHAR8                 *OdataTypeName,
> +  IN REDFISH_ODATA_TYPE_MAPPING  *OdataTypeMappingList,
> +  IN UINTN                       OdataTypeMappingListSize
> +  );
> +
> +/**
> +  Check if the payload is collection
> +
> +  @param[in]  Payload   The Redfish payload to be checked.
> +
> +  @return TRUE if the payload is  collection.
> +
> +**/
> +BOOLEAN
> +RedfishIsPayloadCollection (
> +  IN REDFISH_PAYLOAD  Payload
> +  );
> +
> +/**
> +  Get collection size.
> +
> +  @param[in]  Payload         The Redfish collection payload
> +  @param[in]  CollectionSize  Size of this collection
> +
> +  @return EFI_SUCCESS              Coolection size is returned in CollectionSize
> +  @return EFI_INVALID_PARAMETER    The payload is not a collection.
> +**/
> +EFI_STATUS
> +RedfishGetCollectionSize (
> +  IN REDFISH_PAYLOAD  Payload,
> +  IN UINTN            *CollectionSize
> +  );
> +
> +/**
> +  Get Redfish payload of collection member
> +
> +  @param[in]  Payload    The Redfish collection payload
> +  @param[in]  Index      Index of collection member
> +
> +  @return NULL           Fail to get collection member.
> +  @return Non NULL       Payload is returned.
> +**/
> +REDFISH_PAYLOAD
> +RedfishGetPayloadByIndex (
> +  IN REDFISH_PAYLOAD  Payload,
> +  IN UINTN            Index
> +  );
> +
> +/**
> +  Check and return Redfish resource of the given Redpath.
> +
> +  @param[in]  RedfishService  Pointer to REDFISH_SERVICE
> +  @param[in]  Redpath         Redpath of the resource.
> +  @param[in]  Response        Optional return the resource.
> +
> +  @return EFI_STATUS
> +**/
> +EFI_STATUS
> +RedfishCheckIfRedpathExist (
> +  IN REDFISH_SERVICE   RedfishService,
> +  IN CHAR8             *Redpath,
> +  IN REDFISH_RESPONSE  *Response OPTIONAL
> +  );
> +
> +/**
> +  This function returns the string of Redfish service version.
> +
> +  @param[in]  RedfishService      Redfish service instance.
> +  @param[out] ServiceVersionStr   Redfish service string.
> +
> +  @return     EFI_STATUS
> +
> +**/
> +EFI_STATUS
> +RedfishGetServiceVersion (
> +  IN  REDFISH_SERVICE  RedfishService,
> +  OUT CHAR8            **ServiceVersionStr
> +  );
> +
> +/**
> +  This function returns the string of Redfish service version.
> +
> +  @param[in]   ServiceVerisonStr The string of Redfish service version.
> +  @param[in]   Url               The URL to build Redpath with ID.
> +                                 Start with "/", for example "/Registries"
> +  @param[in]   Id                ID string
> +  @param[out]  Redpath           Pointer to retrive Redpath, caller has to free
> +                                 the memory allocated for this string.
> +  @return     EFI_STATUS
> +
> +**/
> +EFI_STATUS
> +RedfishBuildRedpathUseId (
> +  IN  CHAR8  *ServiceVerisonStr,
> +  IN  CHAR8  *Url,
> +  IN  CHAR8  *Id,
> +  OUT CHAR8  **Redpath
> +  );
> +
> +#endif
> --
> 2.17.1


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