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/** @file
Implementation for EFI iSCSI Initiator Name Protocol.
Copyright (c) 2004 - 2008, Intel Corporation.<BR>
All rights reserved. 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.
**/
#include "IScsiImpl.h"
EFI_ISCSI_INITIATOR_NAME_PROTOCOL gIScsiInitiatorName = {
IScsiGetInitiatorName,
IScsiSetInitiatorName
};
/**
Retrieves the current set value of iSCSI Initiator Name.
@param[in] This Pointer to the EFI_ISCSI_INITIATOR_NAME_PROTOCOL instance.
@param[in, out] BufferSize Size of the buffer in bytes pointed to by Buffer / Actual size of the
variable data buffer.
@param[out] Buffer Pointer to the buffer for data to be read.
@retval EFI_SUCCESS Data was successfully retrieved into the provided buffer and the
BufferSize was sufficient to handle the iSCSI initiator name.
@retval EFI_BUFFER_TOO_SMALL BufferSize is too small for the result.
@retval EFI_INVALID_PARAMETER BufferSize or Buffer is NULL.
@retval EFI_DEVICE_ERROR The iSCSI initiator name could not be retrieved due to a hardware error.
@retval Others Other errors as indicated.
**/
EFI_STATUS
EFIAPI
IScsiGetInitiatorName (
IN EFI_ISCSI_INITIATOR_NAME_PROTOCOL *This,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer
)
{
EFI_STATUS Status;
if ((BufferSize == NULL) || (Buffer == NULL)) {
return EFI_INVALID_PARAMETER;
}
Status = gRT->GetVariable (
ISCSI_INITIATOR_NAME_VAR_NAME,
&gEfiIScsiInitiatorNameProtocolGuid,
NULL,
BufferSize,
Buffer
);
return Status;
}
/**
Sets the iSCSI Initiator Name.
@param[in] This Pointer to the EFI_ISCSI_INITIATOR_NAME_PROTOCOL instance.
@param[in, out] BufferSize Size of the buffer in bytes pointed to by Buffer.
@param[in] Buffer Pointer to the buffer for data to be written.
@retval EFI_SUCCESS Data was successfully stored by the protocol.
@retval EFI_UNSUPPORTED Platform policies do not allow for data to be written.
Currently not implemented.
@retval EFI_INVALID_PARAMETER BufferSize or Buffer is NULL, or BufferSize exceeds the maximum allowed limit.
@retval EFI_DEVICE_ERROR The data could not be stored due to a hardware error.
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the data.
@retval EFI_PROTOCOL_ERROR Input iSCSI initiator name does not adhere to RFC 3720
(and other related protocols).
@retval Others Other errors as indicated.
**/
EFI_STATUS
EFIAPI
IScsiSetInitiatorName (
IN EFI_ISCSI_INITIATOR_NAME_PROTOCOL *This,
IN OUT UINTN *BufferSize,
IN VOID *Buffer
)
{
EFI_STATUS Status;
if ((BufferSize == NULL) || (Buffer == NULL)) {
return EFI_INVALID_PARAMETER;
}
if (*BufferSize > ISCSI_NAME_MAX_SIZE) {
*BufferSize = ISCSI_NAME_MAX_SIZE;
return EFI_INVALID_PARAMETER;
}
//
// only support iqn iSCSI names.
//
Status = IScsiNormalizeName ((CHAR8 *) Buffer, *BufferSize - 1);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gRT->SetVariable (
ISCSI_INITIATOR_NAME_VAR_NAME,
&gEfiIScsiInitiatorNameProtocolGuid,
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
*BufferSize,
Buffer
);
return Status;
}
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