diff options
Diffstat (limited to 'RedfishPkg/Library/DxeRestExLib/DxeRestExLib.c')
| -rw-r--r-- | RedfishPkg/Library/DxeRestExLib/DxeRestExLib.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/RedfishPkg/Library/DxeRestExLib/DxeRestExLib.c b/RedfishPkg/Library/DxeRestExLib/DxeRestExLib.c new file mode 100644 index 0000000000..05c70c213f --- /dev/null +++ b/RedfishPkg/Library/DxeRestExLib/DxeRestExLib.c @@ -0,0 +1,166 @@ +/** @file
+ This library provides help functions for REST EX Protocol.
+
+ (C) Copyright 2020 Hewlett Packard Enterprise Development LP<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Uefi.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/NetLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Protocol/Http.h>
+#include <Protocol/RestEx.h>
+
+#define REST_EX_CONFIG_DATA_LEN_UNKNOWN 0xff
+
+/**
+ This function allows the caller to create child handle for specific
+ REST server.
+
+ @param[in] Image The image handle used to open service.
+ @param[in] AccessMode Access mode of REST server.
+ @param[in] ConfigType Underlying configuration to communicate with REST server.
+ @param[in] ServiceType REST service type.
+ @param[out] ChildInstanceHandle The handle to receive the create child.
+
+ @retval EFI_SUCCESS Can't create the corresponding REST EX child instance.
+ @retval EFI_INVALID_PARAMETERS Any of input parameters is improper.
+
+**/
+EFI_STATUS
+RestExLibCreateChild (
+ IN EFI_HANDLE Image,
+ IN EFI_REST_EX_SERVICE_ACCESS_MODE AccessMode,
+ IN EFI_REST_EX_CONFIG_TYPE ConfigType,
+ IN EFI_REST_EX_SERVICE_TYPE ServiceType,
+ OUT EFI_HANDLE *ChildInstanceHandle
+)
+{
+ EFI_STATUS Status;
+ UINTN NoBuffer;
+ EFI_HANDLE *Handle;
+ EFI_HANDLE ChildHandle;
+ EFI_REST_EX_PROTOCOL *RestEx;
+ EFI_REST_EX_SERVICE_INFO *RestExServiceInfo;
+ UINT8 LenOfConfig;
+
+ if (Image == NULL ||
+ AccessMode >= EfiRestExServiceModeMax ||
+ ConfigType >= EfiRestExConfigTypeMax ||
+ ServiceType >= EfiRestExServiceTypeMax ||
+ ChildInstanceHandle == NULL
+ ) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *ChildInstanceHandle = NULL;
+ //
+ // Locate all REST EX binding service.
+ //
+ Handle = NULL;
+ NoBuffer = 0;
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiRestExServiceBindingProtocolGuid,
+ NULL,
+ &NoBuffer,
+ &Handle
+ );
+ if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {
+ return Status;
+ }
+ Handle = (EFI_HANDLE *)AllocateZeroPool (sizeof(EFI_HANDLE) * NoBuffer);
+ if (Handle == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiRestExServiceBindingProtocolGuid,
+ NULL,
+ &NoBuffer,
+ &Handle
+ );
+ if (EFI_ERROR (Status)) {
+ FreePool (Handle);
+ return Status;
+ }
+
+ //
+ // Search for the proper REST EX instance.
+ //
+ while (NoBuffer != 0) {
+ ChildHandle = NULL;
+ Status = NetLibCreateServiceChild (
+ *(Handle + (NoBuffer - 1)),
+ Image,
+ &gEfiRestExServiceBindingProtocolGuid,
+ &ChildHandle
+ );
+ if (!EFI_ERROR (Status)) {
+ Status = gBS->OpenProtocol (
+ ChildHandle,
+ &gEfiRestExProtocolGuid,
+ (VOID **)&RestEx,
+ Image,
+ NULL,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_ERROR;
+ }
+
+ //
+ // Get the information of REST service provided by this EFI REST EX driver
+ //
+ Status = RestEx->GetService (
+ RestEx,
+ &RestExServiceInfo
+ );
+ if (EFI_ERROR (Status)) {
+ goto ON_ERROR;
+ }
+ //
+ // Check REST EX property.
+ //
+ switch (ConfigType) {
+ case EfiRestExConfigHttp:
+ LenOfConfig = sizeof (EFI_REST_EX_HTTP_CONFIG_DATA);
+ break;
+
+ case EfiRestExConfigUnspecific:
+ LenOfConfig = REST_EX_CONFIG_DATA_LEN_UNKNOWN;
+ break;
+
+ default:
+ goto ON_ERROR;
+ }
+ if (RestExServiceInfo->EfiRestExServiceInfoV10.RestServiceAccessMode != AccessMode ||
+ RestExServiceInfo->EfiRestExServiceInfoV10.RestServiceType != ServiceType ||
+ RestExServiceInfo->EfiRestExServiceInfoV10.RestExConfigType != ConfigType ||
+ ((LenOfConfig != REST_EX_CONFIG_DATA_LEN_UNKNOWN) && (RestExServiceInfo->EfiRestExServiceInfoV10.RestExConfigDataLength != LenOfConfig))) {
+ goto ON_ERROR;
+ }
+ }
+ //
+ // This is proper REST EX instance.
+ //
+ *ChildInstanceHandle = ChildHandle;
+ FreePool (Handle);
+ return EFI_SUCCESS;
+
+ON_ERROR:;
+ NetLibDestroyServiceChild (
+ *(Handle + (NoBuffer - 1)),
+ Image,
+ &gEfiRestExServiceBindingProtocolGuid,
+ ChildHandle
+ );
+ NoBuffer --;
+ };
+ FreePool (Handle);
+ return EFI_NOT_FOUND;
+}
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