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https://github.com/CloverHackyColor/CloverBootloader.git
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131 lines
4.8 KiB
C
131 lines
4.8 KiB
C
/** @file
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Implementation for EFI iSCSI Initiator Name Protocol.
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Copyright (c) 2004 - 2011, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "IScsiImpl.h"
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EFI_ISCSI_INITIATOR_NAME_PROTOCOL gIScsiInitiatorName = {
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IScsiGetInitiatorName,
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IScsiSetInitiatorName
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};
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/**
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Retrieves the current set value of iSCSI Initiator Name.
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@param[in] This Pointer to the EFI_ISCSI_INITIATOR_NAME_PROTOCOL
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instance.
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@param[in, out] BufferSize Size of the buffer in bytes pointed to by Buffer /
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Actual size of the variable data buffer.
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@param[out] Buffer Pointer to the buffer for data to be read.
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The data is a null-terminated UTF-8 encoded string.
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The maximum length is 223 characters, including the null-terminator.
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@retval EFI_SUCCESS Data was successfully retrieved into the provided
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buffer and the BufferSize was sufficient to handle
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the iSCSI initiator name.
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@retval EFI_BUFFER_TOO_SMALL BufferSize is too small for the result. BufferSize
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will be updated with the size required to complete
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the request. Buffer will not be affected.
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@retval EFI_INVALID_PARAMETER BufferSize is NULL. BufferSize and Buffer will not
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be affected.
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@retval EFI_INVALID_PARAMETER Buffer is NULL. BufferSize and Buffer will not be
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affected.
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@retval EFI_DEVICE_ERROR The iSCSI initiator name could not be retrieved
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due to a hardware error.
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**/
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EFI_STATUS
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EFIAPI
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IScsiGetInitiatorName (
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IN EFI_ISCSI_INITIATOR_NAME_PROTOCOL *This,
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IN OUT UINTN *BufferSize,
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OUT VOID *Buffer
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)
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{
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EFI_STATUS Status;
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if ((BufferSize == NULL) || (Buffer == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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Status = gRT->GetVariable (
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ISCSI_INITIATOR_NAME_VAR_NAME,
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&gEfiIScsiInitiatorNameProtocolGuid,
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NULL,
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BufferSize,
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Buffer
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);
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return Status;
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}
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/**
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Sets the iSSI Initiator Name.
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@param[in] This Pointer to the EFI_ISCSI_INITIATOR_NAME_PROTOCOL
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instance.
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@param[in, out] BufferSize Size of the buffer in bytes pointed to by Buffer.
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@param[in] Buffer Pointer to the buffer for data to be written.
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The data is a null-terminated UTF-8 encoded string.
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The maximum length is 223 characters, including the null-terminator.
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@retval EFI_SUCCESS Data was successfully stored by the protocol.
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@retval EFI_UNSUPPORTED Platform policies do not allow for data to be
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written.
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@retval EFI_INVALID_PARAMETER BufferSize exceeds the maximum allowed limit.
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BufferSize will be updated with the maximum size
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required to complete the request.
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@retval EFI_INVALID_PARAMETER Buffersize is NULL. BufferSize and Buffer will not
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be affected.
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@retval EFI_INVALID_PARAMETER Buffer is NULL. BufferSize and Buffer will not be
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affected.
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@retval EFI_DEVICE_ERROR The data could not be stored due to a hardware
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error.
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@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the data
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@retval EFI_PROTOCOL_ERROR Input iSCSI initiator name does not adhere to RFC
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3720
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**/
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EFI_STATUS
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EFIAPI
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IScsiSetInitiatorName (
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IN EFI_ISCSI_INITIATOR_NAME_PROTOCOL *This,
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IN OUT UINTN *BufferSize,
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IN VOID *Buffer
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)
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{
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EFI_STATUS Status;
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if ((BufferSize == NULL) || (Buffer == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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if (*BufferSize > ISCSI_NAME_MAX_SIZE) {
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*BufferSize = ISCSI_NAME_MAX_SIZE;
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return EFI_INVALID_PARAMETER;
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}
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//
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// Only support iqn iSCSI names.
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//
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Status = IScsiNormalizeName ((CHAR8 *) Buffer, *BufferSize - 1);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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Status = gRT->SetVariable (
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ISCSI_INITIATOR_NAME_VAR_NAME,
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&gEfiIScsiInitiatorNameProtocolGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
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*BufferSize,
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Buffer
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);
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return Status;
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}
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