| /** @file | |
| RedfishRestExDxe support functions definitions. | |
| Copyright (c) 2019, Intel Corporation. All rights reserved.<BR> | |
| (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR> | |
| Copyright (c) 2023, Ampere Computing LLC. All rights reserved.<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #ifndef EFI_REDFISH_RESTEX_DRIVER_H_ | |
| #define EFI_REDFISH_RESTEX_DRIVER_H_ | |
| /// | |
| /// Libraries classes | |
| /// | |
| #include <Library/BaseLib.h> | |
| #include <Library/BaseMemoryLib.h> | |
| #include <Library/DebugLib.h> | |
| #include <Library/DevicePathLib.h> | |
| #include <Library/HttpIoLib.h> | |
| #include <Library/MemoryAllocationLib.h> | |
| #include <Library/NetLib.h> | |
| #include <Library/UefiLib.h> | |
| #include <Library/UefiBootServicesTableLib.h> | |
| #include <Library/UefiDriverEntryPoint.h> | |
| /// | |
| /// UEFI Driver Model Protocols | |
| /// | |
| #include <Protocol/DriverBinding.h> | |
| #include <Protocol/RestEx.h> | |
| #include <Protocol/ServiceBinding.h> | |
| /// | |
| /// Protocol instances | |
| /// | |
| extern EFI_COMPONENT_NAME_PROTOCOL gRedfishRestExComponentName; | |
| extern EFI_COMPONENT_NAME2_PROTOCOL gRedfishRestExComponentName2; | |
| extern EFI_UNICODE_STRING_TABLE *gRedfishRestExControllerNameTable; | |
| extern EFI_DRIVER_BINDING_PROTOCOL gRedfishRestExDriverBinding; | |
| extern EFI_SERVICE_BINDING_PROTOCOL mRedfishRestExServiceBinding; | |
| extern EFI_REST_EX_PROTOCOL mRedfishRestExProtocol; | |
| /// | |
| /// RestEx service block | |
| /// | |
| typedef struct _RESTEX_SERVICE RESTEX_SERVICE; | |
| /// | |
| /// RestEx instance block | |
| /// | |
| typedef struct _RESTEX_INSTANCE RESTEX_INSTANCE; | |
| /// | |
| /// Driver Version | |
| /// | |
| #define REDFISH_RESTEX_DRIVER_VERSION 0x0100 | |
| #define RESTEX_SERVICE_SIGNATURE SIGNATURE_32 ('R', 'E', 'S', 'S') | |
| #define RESTEX_INSTANCE_SIGNATURE SIGNATURE_32 ('R', 'E', 'I', 'S') | |
| #define RESTEX_SERVICE_FROM_THIS(a) \ | |
| CR (a, RESTEX_SERVICE, ServiceBinding, RESTEX_SERVICE_SIGNATURE) | |
| #define RESTEX_INSTANCE_FROM_THIS(a) \ | |
| CR (a, RESTEX_INSTANCE, RestEx, RESTEX_INSTANCE_SIGNATURE) | |
| #define RESTEX_STATE_UNCONFIGED 0 | |
| #define RESTEX_STATE_CONFIGED 1 | |
| struct _RESTEX_SERVICE { | |
| UINT32 Signature; | |
| EFI_SERVICE_BINDING_PROTOCOL ServiceBinding; | |
| UINT16 RestExChildrenNum; | |
| LIST_ENTRY RestExChildrenList; | |
| EFI_HANDLE ControllerHandle; | |
| EFI_HANDLE ImageHandle; | |
| // | |
| // Use to establish the parent-child relationship. | |
| // | |
| EFI_HANDLE HttpChildHandle; | |
| UINT32 *Id; | |
| EFI_REST_EX_SERVICE_INFO RestExServiceInfo; | |
| }; | |
| #define RESTEX_INSTANCE_FLAGS_TLS_RETRY 0x00000001 | |
| #define RESTEX_INSTANCE_FLAGS_TCP_ERROR_RETRY 0x00000002 | |
| struct _RESTEX_INSTANCE { | |
| UINT32 Signature; | |
| LIST_ENTRY Link; | |
| EFI_REST_EX_PROTOCOL RestEx; | |
| INTN State; | |
| BOOLEAN InDestroy; | |
| RESTEX_SERVICE *Service; | |
| EFI_HANDLE ChildHandle; | |
| EFI_REST_EX_CONFIG_DATA ConfigData; | |
| // | |
| // HTTP_IO to access the HTTP service | |
| // | |
| HTTP_IO HttpIo; | |
| UINT32 Flags; | |
| }; | |
| typedef struct { | |
| EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding; | |
| UINTN NumberOfChildren; | |
| EFI_HANDLE *ChildHandleBuffer; | |
| } RESTEX_DESTROY_CHILD_IN_HANDLE_BUF_CONTEXT; | |
| /** | |
| 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_EX_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. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExSendReceive ( | |
| IN EFI_REST_EX_PROTOCOL *This, | |
| IN EFI_HTTP_MESSAGE *RequestMessage, | |
| OUT EFI_HTTP_MESSAGE *ResponseMessage | |
| ); | |
| /** | |
| Obtain the current time from this REST service instance. | |
| The GetServiceTime() function is an optional interface to obtain the current time from | |
| this REST service instance. If this REST service does not support to retrieve the time, | |
| this function returns EFI_UNSUPPORTED. This function must returns EFI_UNSUPPORTED if | |
| EFI_REST_EX_SERVICE_TYPE returned in EFI_REST_EX_SERVICE_INFO from GetService() is | |
| EFI_REST_EX_SERVICE_UNSPECIFIC. | |
| @param[in] This Pointer to EFI_REST_EX_PROTOCOL instance for a particular | |
| REST service. | |
| @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. | |
| @retval EFI_NOT_READY The configuration of this instance is not set yet. Configure() must | |
| be executed and returns successfully prior to invoke this function. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExGetServiceTime ( | |
| IN EFI_REST_EX_PROTOCOL *This, | |
| OUT EFI_TIME *Time | |
| ); | |
| /** | |
| This function returns the information of REST service provided by this EFI REST EX driver instance. | |
| The information such as the type of REST service and the access mode of REST EX driver instance | |
| (In-band or Out-of-band) are described in EFI_REST_EX_SERVICE_INFO structure. For the vendor-specific | |
| REST service, vendor-specific REST service information is returned in VendorSpecifcData. | |
| REST EX driver designer is well know what REST service this REST EX driver instance intends to | |
| communicate with. The designer also well know this driver instance is used to talk to BMC through | |
| specific platform mechanism or talk to REST server through UEFI HTTP protocol. REST EX driver is | |
| responsible to fill up the correct information in EFI_REST_EX_SERVICE_INFO. EFI_REST_EX_SERVICE_INFO | |
| is referred by EFI REST clients to pickup the proper EFI REST EX driver instance to get and set resource. | |
| GetService() is a basic and mandatory function which must be able to use even Configure() is not invoked | |
| in previously. | |
| @param[in] This Pointer to EFI_REST_EX_PROTOCOL instance for a particular | |
| REST service. | |
| @param[out] RestExServiceInfo Pointer to receive a pointer to EFI_REST_EX_SERVICE_INFO structure. The | |
| format of EFI_REST_EX_SERVICE_INFO is version controlled for the future | |
| extension. The version of EFI_REST_EX_SERVICE_INFO structure is returned | |
| in the header within this structure. EFI REST client refers to the correct | |
| format of structure according to the version number. The pointer to | |
| EFI_REST_EX_SERVICE_INFO is a memory block allocated by EFI REST EX driver | |
| instance. That is caller's responsibility to free this memory when this | |
| structure is no longer needed. Refer to Related Definitions below for the | |
| definitions of EFI_REST_EX_SERVICE_INFO structure. | |
| @retval EFI_SUCCESS EFI_REST_EX_SERVICE_INFO is returned in RestExServiceInfo. This function | |
| is not supported in this REST EX Protocol driver instance. | |
| @retval EFI_UNSUPPORTED This function is not supported in this REST EX Protocol driver instance. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExGetService ( | |
| IN EFI_REST_EX_PROTOCOL *This, | |
| OUT EFI_REST_EX_SERVICE_INFO **RestExServiceInfo | |
| ); | |
| /** | |
| This function returns operational configuration of current EFI REST EX child instance. | |
| This function returns the current configuration of EFI REST EX child instance. The format of | |
| operational configuration depends on the implementation of EFI REST EX driver instance. For | |
| example, HTTP-aware EFI REST EX driver instance uses EFI HTTP protocol as the undying protocol | |
| to communicate with REST service. In this case, the type of configuration is | |
| EFI_REST_EX_CONFIG_TYPE_HTTP returned from GetService(). EFI_HTTP_CONFIG_DATA is used as EFI REST | |
| EX configuration format and returned to EFI REST client. User has to type cast RestExConfigData | |
| to EFI_HTTP_CONFIG_DATA. For those non HTTP-aware REST EX driver instances, the type of configuration | |
| is EFI_REST_EX_CONFIG_TYPE_UNSPECIFIC returned from GetService(). In this case, the format of | |
| returning data could be non industrial. Instead, the format of configuration data is system/platform | |
| specific definition such as BMC mechanism used in EFI REST EX driver instance. EFI REST client and | |
| EFI REST EX driver instance have to refer to the specific system /platform spec which is out of UEFI scope. | |
| @param[in] This This is the EFI_REST_EX_PROTOCOL instance. | |
| @param[out] RestExConfigData Pointer to receive a pointer to EFI_REST_EX_CONFIG_DATA. | |
| The memory allocated for configuration data should be freed | |
| by caller. See Related Definitions for the details. | |
| @retval EFI_SUCCESS EFI_REST_EX_CONFIG_DATA is returned in successfully. | |
| @retval EFI_UNSUPPORTED This function is not supported in this REST EX Protocol driver instance. | |
| @retval EFI_NOT_READY The configuration of this instance is not set yet. Configure() must be | |
| executed and returns successfully prior to invoke this function. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExGetModeData ( | |
| IN EFI_REST_EX_PROTOCOL *This, | |
| OUT EFI_REST_EX_CONFIG_DATA *RestExConfigData | |
| ); | |
| /** | |
| This function is used to configure EFI REST EX child instance. | |
| This function is used to configure the setting of underlying protocol of REST EX child | |
| instance. The type of configuration is according to the implementation of EFI REST EX | |
| driver instance. For example, HTTP-aware EFI REST EX driver instance uses EFI HTTP protocol | |
| as the undying protocol to communicate with REST service. The type of configuration is | |
| EFI_REST_EX_CONFIG_TYPE_HTTP and RestExConfigData is the same format with EFI_HTTP_CONFIG_DATA. | |
| Akin to HTTP configuration, REST EX child instance can be configure to use different HTTP | |
| local access point for the data transmission. Multiple REST clients may use different | |
| configuration of HTTP to distinguish themselves, such as to use the different TCP port. | |
| For those non HTTP-aware REST EX driver instance, the type of configuration is | |
| EFI_REST_EX_CONFIG_TYPE_UNSPECIFIC. RestExConfigData refers to the non industrial standard. | |
| Instead, the format of configuration data is system/platform specific definition such as BMC. | |
| In this case, EFI REST client and EFI REST EX driver instance have to refer to the specific | |
| system/platform spec which is out of the UEFI scope. Besides GetService()function, no other | |
| EFI REST EX functions can be executed by this instance until Configure()is executed and returns | |
| successfully. All other functions must returns EFI_NOT_READY if this instance is not configured | |
| yet. Set RestExConfigData to NULL means to put EFI REST EX child instance into the unconfigured | |
| state. | |
| @param[in] This This is the EFI_REST_EX_PROTOCOL instance. | |
| @param[in] RestExConfigData Pointer to EFI_REST_EX_CONFIG_DATA. See Related Definitions in | |
| GetModeData() protocol interface. | |
| @retval EFI_SUCCESS EFI_REST_EX_CONFIG_DATA is set in successfully. | |
| @retval EFI_DEVICE_ERROR Configuration for this REST EX child instance is failed with the given | |
| EFI_REST_EX_CONFIG_DATA. | |
| @retval EFI_UNSUPPORTED This function is not supported in this REST EX Protocol driver instance. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExConfigure ( | |
| IN EFI_REST_EX_PROTOCOL *This, | |
| IN EFI_REST_EX_CONFIG_DATA RestExConfigData | |
| ); | |
| /** | |
| This function sends REST request to REST service and signal caller's event asynchronously when | |
| the final response is received by REST EX Protocol driver instance. | |
| The essential design of this function is to handle asynchronous send/receive implicitly according | |
| to REST service asynchronous request mechanism. Caller will get the notification once the response | |
| is returned from REST service. | |
| @param[in] This This is the EFI_REST_EX_PROTOCOL instance. | |
| @param[in] RequestMessage This is the HTTP request message sent to REST service. Set RequestMessage | |
| to NULL to cancel the previous asynchronous request associated with the | |
| corresponding RestExToken. See descriptions for the details. | |
| @param[in] RestExToken REST EX token which REST EX Protocol instance uses to notify REST client | |
| the status of response of asynchronous REST request. See related definition | |
| of EFI_REST_EX_TOKEN. | |
| @param[in] TimeOutInMilliSeconds The pointer to the timeout in milliseconds which REST EX Protocol driver | |
| instance refers as the duration to drop asynchronous REST request. NULL | |
| pointer means no timeout for this REST request. REST EX Protocol driver | |
| signals caller's event with EFI_STATUS set to EFI_TIMEOUT in RestExToken | |
| if REST EX Protocol can't get the response from REST service within | |
| TimeOutInMilliSeconds. | |
| @retval EFI_SUCCESS Asynchronous REST request is established. | |
| @retval EFI_UNSUPPORTED This REST EX Protocol driver instance doesn't support asynchronous request. | |
| @retval EFI_TIMEOUT Asynchronous REST request is not established and timeout is expired. | |
| @retval EFI_ABORT Previous asynchronous REST request has been canceled. | |
| @retval EFI_DEVICE_ERROR Otherwise, returns EFI_DEVICE_ERROR for other errors according to HTTP Status Code. | |
| @retval EFI_NOT_READY The configuration of this instance is not set yet. Configure() must be executed | |
| and returns successfully prior to invoke this function. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExAyncSendReceive ( | |
| IN EFI_REST_EX_PROTOCOL *This, | |
| IN EFI_HTTP_MESSAGE *RequestMessage OPTIONAL, | |
| IN EFI_REST_EX_TOKEN *RestExToken, | |
| IN UINTN *TimeOutInMilliSeconds OPTIONAL | |
| ); | |
| /** | |
| This function sends REST request to a REST Event service and signals caller's event | |
| token asynchronously when the URI resource change event is received by REST EX | |
| Protocol driver instance. | |
| The essential design of this function is to monitor event implicitly according to | |
| REST service event service mechanism. Caller will get the notification if certain | |
| resource is changed. | |
| @param[in] This This is the EFI_REST_EX_PROTOCOL instance. | |
| @param[in] RequestMessage This is the HTTP request message sent to REST service. Set RequestMessage | |
| to NULL to cancel the previous event service associated with the corresponding | |
| RestExToken. See descriptions for the details. | |
| @param[in] RestExToken REST EX token which REST EX Protocol driver instance uses to notify REST client | |
| the URI resource which monitored by REST client has been changed. See the related | |
| definition of EFI_REST_EX_TOKEN in EFI_REST_EX_PROTOCOL.AsyncSendReceive(). | |
| @retval EFI_SUCCESS Asynchronous REST request is established. | |
| @retval EFI_UNSUPPORTED This REST EX Protocol driver instance doesn't support asynchronous request. | |
| @retval EFI_ABORT Previous asynchronous REST request has been canceled or event subscription has been | |
| delete from service. | |
| @retval EFI_DEVICE_ERROR Otherwise, returns EFI_DEVICE_ERROR for other errors according to HTTP Status Code. | |
| @retval EFI_NOT_READY The configuration of this instance is not set yet. Configure() must be executed | |
| and returns successfully prior to invoke this function. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExEventService ( | |
| IN EFI_REST_EX_PROTOCOL *This, | |
| IN EFI_HTTP_MESSAGE *RequestMessage OPTIONAL, | |
| IN EFI_REST_EX_TOKEN *RestExToken | |
| ); | |
| /** | |
| Create a new TLS session becuase the previous on is closed. | |
| status. | |
| @param[in] Instance Pointer to EFI_REST_EX_PROTOCOL instance for a particular | |
| REST service. | |
| @retval EFI_SUCCESS operation succeeded. | |
| @retval EFI Errors Other errors. | |
| **/ | |
| EFI_STATUS | |
| ResetHttpTslSession ( | |
| IN RESTEX_INSTANCE *Instance | |
| ); | |
| /** | |
| Callback function which provided by user to remove one node in NetDestroyLinkList process. | |
| @param[in] Entry The entry to be removed. | |
| @param[in] Context Pointer to the callback context corresponds to the Context in NetDestroyLinkList. | |
| @retval EFI_SUCCESS The entry has been removed successfully. | |
| @retval Others Fail to remove the entry. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RestExDestroyChildEntryInHandleBuffer ( | |
| IN LIST_ENTRY *Entry, | |
| IN VOID *Context | |
| ); | |
| /** | |
| Destroy the RestEx instance and recycle the resources. | |
| @param[in] Instance The pointer to the RestEx instance. | |
| **/ | |
| VOID | |
| RestExDestroyInstance ( | |
| IN RESTEX_INSTANCE *Instance | |
| ); | |
| /** | |
| Create the RestEx instance and initialize it. | |
| @param[in] Service The pointer to the RestEx service. | |
| @param[out] Instance The pointer to the RestEx instance. | |
| @retval EFI_OUT_OF_RESOURCES Failed to allocate resources. | |
| @retval EFI_SUCCESS The RestEx instance is created. | |
| **/ | |
| EFI_STATUS | |
| RestExCreateInstance ( | |
| IN RESTEX_SERVICE *Service, | |
| OUT RESTEX_INSTANCE **Instance | |
| ); | |
| /** | |
| Release all the resource used the RestEx service binding instance. | |
| @param RestExSb The RestEx service binding instance. | |
| **/ | |
| VOID | |
| RestExDestroyService ( | |
| IN RESTEX_SERVICE *RestExSb | |
| ); | |
| /** | |
| Create then initialize a RestEx service binding instance. | |
| @param[in] Controller The controller to install the RestEx service | |
| binding on. | |
| @param[in] Image The driver binding image of the RestEx driver. | |
| @param[out] Service The variable to receive the created service | |
| binding instance. | |
| @retval EFI_OUT_OF_RESOURCES Failed to allocate resource to create the instance. | |
| @retval EFI_SUCCESS The service instance is created for the controller. | |
| **/ | |
| EFI_STATUS | |
| RestExCreateService ( | |
| IN EFI_HANDLE Controller, | |
| IN EFI_HANDLE Image, | |
| OUT RESTEX_SERVICE **Service | |
| ); | |
| /** | |
| This is the declaration of an EFI image entry point. This entry point is | |
| the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including | |
| both device drivers and bus drivers. | |
| @param[in] ImageHandle The firmware allocated handle for the UEFI image. | |
| @param[in] SystemTable A pointer to the EFI System Table. | |
| @retval EFI_SUCCESS The operation completed successfully. | |
| @retval Others An unexpected error occurred. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExDriverEntryPoint ( | |
| IN EFI_HANDLE ImageHandle, | |
| IN EFI_SYSTEM_TABLE *SystemTable | |
| ); | |
| /** | |
| Tests to see if this driver supports a given controller. If a child device is provided, | |
| it further tests to see if this driver supports creating a handle for the specified child device. | |
| This function checks to see if the driver specified by This supports the device specified by | |
| ControllerHandle. Drivers will typically use the device path attached to | |
| ControllerHandle and/or the services from the bus I/O abstraction attached to | |
| ControllerHandle to determine if the driver supports ControllerHandle. This function | |
| may be called many times during platform initialization. In order to reduce boot times, the tests | |
| performed by this function must be very small, and take as little time as possible to execute. This | |
| function must not change the state of any hardware devices, and this function must be aware that the | |
| device specified by ControllerHandle may already be managed by the same driver or a | |
| different driver. This function must match its calls to AllocatePages() with FreePages(), | |
| AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol(). | |
| Because ControllerHandle may have been previously started by the same driver, if a protocol is | |
| already in the opened state, then it must not be closed with CloseProtocol(). This is required | |
| to guarantee the state of ControllerHandle is not modified by this function. | |
| @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. | |
| @param[in] ControllerHandle The handle of the controller to test. This handle | |
| must support a protocol interface that supplies | |
| an I/O abstraction to the driver. | |
| @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This | |
| parameter is ignored by device drivers, and is optional for bus | |
| drivers. For bus drivers, if this parameter is not NULL, then | |
| the bus driver must determine if the bus controller specified | |
| by ControllerHandle and the child controller specified | |
| by RemainingDevicePath are both supported by this | |
| bus driver. | |
| @retval EFI_SUCCESS The device specified by ControllerHandle and | |
| RemainingDevicePath is supported by the driver specified by This. | |
| @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and | |
| RemainingDevicePath is already being managed by the driver | |
| specified by This. | |
| @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and | |
| RemainingDevicePath is already being managed by a different | |
| driver or an application that requires exclusive access. | |
| Currently not implemented. | |
| @retval EFI_UNSUPPORTED The device specified by ControllerHandle and | |
| RemainingDevicePath is not supported by the driver specified by This. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExDriverBindingSupported ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE ControllerHandle, | |
| IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL | |
| ); | |
| /** | |
| Starts a device controller or a bus controller. | |
| The Start() function is designed to be invoked from the EFI boot service ConnectController(). | |
| As a result, much of the error checking on the parameters to Start() has been moved into this | |
| common boot service. It is legal to call Start() from other locations, | |
| but the following calling restrictions must be followed, or the system behavior will not be deterministic. | |
| 1. ControllerHandle must be a valid EFI_HANDLE. | |
| 2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned | |
| EFI_DEVICE_PATH_PROTOCOL. | |
| 3. Prior to calling Start(), the Supported() function for the driver specified by This must | |
| have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS. | |
| @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. | |
| @param[in] ControllerHandle The handle of the controller to start. This handle | |
| must support a protocol interface that supplies | |
| an I/O abstraction to the driver. | |
| @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This | |
| parameter is ignored by device drivers, and is optional for bus | |
| drivers. For a bus driver, if this parameter is NULL, then handles | |
| for all the children of Controller are created by this driver. | |
| If this parameter is not NULL and the first Device Path Node is | |
| not the End of Device Path Node, then only the handle for the | |
| child device specified by the first Device Path Node of | |
| RemainingDevicePath is created by this driver. | |
| If the first Device Path Node of RemainingDevicePath is | |
| the End of Device Path Node, no child handle is created by this | |
| driver. | |
| @retval EFI_SUCCESS The device was started. | |
| @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented. | |
| @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources. | |
| @retval Others The driver failded to start the device. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExDriverBindingStart ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE ControllerHandle, | |
| IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL | |
| ); | |
| /** | |
| Stops a device controller or a bus controller. | |
| The Stop() function is designed to be invoked from the EFI boot service DisconnectController(). | |
| As a result, much of the error checking on the parameters to Stop() has been moved | |
| into this common boot service. It is legal to call Stop() from other locations, | |
| but the following calling restrictions must be followed, or the system behavior will not be deterministic. | |
| 1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this | |
| same driver's Start() function. | |
| 2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid | |
| EFI_HANDLE. In addition, all of these handles must have been created in this driver's | |
| Start() function, and the Start() function must have called OpenProtocol() on | |
| ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER. | |
| @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. | |
| @param[in] ControllerHandle A handle to the device being stopped. The handle must | |
| support a bus specific I/O protocol for the driver | |
| to use to stop the device. | |
| @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer. | |
| @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL | |
| if NumberOfChildren is 0. | |
| @retval EFI_SUCCESS The device was stopped. | |
| @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExDriverBindingStop ( | |
| IN EFI_DRIVER_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE ControllerHandle, | |
| IN UINTN NumberOfChildren, | |
| IN EFI_HANDLE *ChildHandleBuffer OPTIONAL | |
| ); | |
| /** | |
| Creates a child handle and installs a protocol. | |
| The CreateChild() function installs a protocol on ChildHandle. | |
| If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle. | |
| If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle. | |
| @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance. | |
| @param[in] ChildHandle Pointer to the handle of the child to create. If it is NULL, | |
| then a new handle is created. If it is a pointer to an existing UEFI handle, | |
| then the protocol is added to the existing UEFI handle. | |
| @retval EFI_SUCCES The protocol was added to ChildHandle. | |
| @retval EFI_INVALID_PARAMETER ChildHandle is NULL. | |
| @retval EFI_OUT_OF_RESOURCES There are not enough resources available to create | |
| the child | |
| @retval other The child handle was not created | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExServiceBindingCreateChild ( | |
| IN EFI_SERVICE_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE *ChildHandle | |
| ); | |
| /** | |
| Destroys a child handle with a protocol installed on it. | |
| The DestroyChild() function does the opposite of CreateChild(). It removes a protocol | |
| that was installed by CreateChild() from ChildHandle. If the removed protocol is the | |
| last protocol on ChildHandle, then ChildHandle is destroyed. | |
| @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance. | |
| @param[in] ChildHandle Handle of the child to destroy | |
| @retval EFI_SUCCES The protocol was removed from ChildHandle. | |
| @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed. | |
| @retval EFI_INVALID_PARAMETER Child handle is NULL. | |
| @retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle | |
| because its services are being used. | |
| @retval other The child handle was not destroyed | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| RedfishRestExServiceBindingDestroyChild ( | |
| IN EFI_SERVICE_BINDING_PROTOCOL *This, | |
| IN EFI_HANDLE ChildHandle | |
| ); | |
| #endif |