339 lines
12 KiB
C
339 lines
12 KiB
C
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/** @file
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UEFI Component Name(2) protocol implementation for iSCSI.
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Copyright (c) 2004 - 2018, 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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//
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// EFI Component Name Protocol
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//
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GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gIScsiComponentName = {
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IScsiComponentNameGetDriverName,
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IScsiComponentNameGetControllerName,
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"eng"
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};
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//
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// EFI Component Name 2 Protocol
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//
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GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gIScsiComponentName2 = {
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(EFI_COMPONENT_NAME2_GET_DRIVER_NAME) IScsiComponentNameGetDriverName,
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(EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) IScsiComponentNameGetControllerName,
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"en"
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};
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GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mIScsiDriverNameTable[] = {
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{
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"eng;en",
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L"iSCSI Driver"
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},
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{
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NULL,
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NULL
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}
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};
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GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE *gIScsiControllerNameTable = NULL;
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/**
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Retrieves a Unicode string that is the user readable name of the driver.
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This function retrieves the user readable name of a driver in the form of a
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Unicode string. If the driver specified by This has a user readable name in
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the language specified by Language, then a pointer to the driver name is
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returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
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by This does not support the language specified by Language,
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then EFI_UNSUPPORTED is returned.
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@param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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EFI_COMPONENT_NAME_PROTOCOL instance.
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@param[in] Language A pointer to a Null-terminated ASCII string
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array indicating the language. This is the
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language of the driver name that the caller is
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requesting, and it must match one of the
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languages specified in SupportedLanguages. The
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number of languages supported by a driver is up
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to the driver writer. Language is specified
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in RFC 4646 or ISO 639-2 language code format.
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@param[out] DriverName A pointer to the Unicode string to return.
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This Unicode string is the name of the
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driver specified by This in the language
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specified by Language.
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@retval EFI_SUCCESS The Unicode string for the Driver specified by
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This and the language specified by Language was
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returned in DriverName.
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@retval EFI_INVALID_PARAMETER Language is NULL.
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@retval EFI_INVALID_PARAMETER DriverName is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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the language specified by Language.
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**/
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EFI_STATUS
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EFIAPI
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IScsiComponentNameGetDriverName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN CHAR8 *Language,
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OUT CHAR16 **DriverName
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)
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{
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return LookupUnicodeString2 (
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Language,
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This->SupportedLanguages,
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mIScsiDriverNameTable,
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DriverName,
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(BOOLEAN) (This == &gIScsiComponentName)
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);
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}
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/**
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Update the component name for the iSCSI instance.
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@param[in] IScsiExtScsiPassThru A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
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@param[in] Ipv6Flag TRUE if IP6 network stack is used.
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@retval EFI_SUCCESS Update the ControllerNameTable of this instance successfully.
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@retval EFI_INVALID_PARAMETER The input parameter is invalid.
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@retval EFI_UNSUPPORTED Can't get the corresponding NIC info from the Controller handle.
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**/
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EFI_STATUS
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UpdateName (
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IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *IScsiExtScsiPassThru,
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IN BOOLEAN Ipv6Flag
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)
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{
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EFI_STATUS Status;
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CHAR16 HandleName[80];
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ISCSI_DRIVER_DATA *Private;
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UINT8 NicIndex;
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if (IScsiExtScsiPassThru == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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Private = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (IScsiExtScsiPassThru);
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NicIndex = Private->Session->ConfigData->NicIndex;
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UnicodeSPrint (
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HandleName,
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sizeof (HandleName),
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L"iSCSI (%s, NicIndex=%d)",
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Ipv6Flag ? L"IPv6" : L"IPv4",
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NicIndex
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);
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if (gIScsiControllerNameTable != NULL) {
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FreeUnicodeStringTable (gIScsiControllerNameTable);
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gIScsiControllerNameTable = NULL;
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}
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Status = AddUnicodeString2 (
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"eng",
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gIScsiComponentName.SupportedLanguages,
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&gIScsiControllerNameTable,
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HandleName,
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TRUE
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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return AddUnicodeString2 (
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"en",
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gIScsiComponentName2.SupportedLanguages,
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&gIScsiControllerNameTable,
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HandleName,
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FALSE
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);
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}
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/**
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Retrieves a Unicode string that is the user readable name of the controller
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that is being managed by a driver.
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This function retrieves the user readable name of the controller specified by
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ControllerHandle and ChildHandle in the form of a Unicode string. If the
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driver specified by This has a user readable name in the language specified by
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Language, then a pointer to the controller name is returned in ControllerName,
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and EFI_SUCCESS is returned. If the driver specified by This is not currently
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managing the controller specified by ControllerHandle and ChildHandle,
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then EFI_UNSUPPORTED is returned. If the driver specified by This does not
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support the language specified by Language, then EFI_UNSUPPORTED is returned.
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@param[in] This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
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EFI_COMPONENT_NAME_PROTOCOL instance.
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@param[in] ControllerHandle The handle of a controller that the driver
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specified by This is managing. This handle
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specifies the controller whose name is to be
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returned.
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@param[in] ChildHandle The handle of the child controller to retrieve
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the name of. This is an optional parameter that
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may be NULL. It will be NULL for device
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drivers. It will also be NULL for a bus drivers
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that wish to retrieve the name of the bus
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controller. It will not be NULL for a bus
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driver that wishes to retrieve the name of a
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child controller.
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@param[in] Language A pointer to a Null-terminated ASCII string
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array indicating the language. This is the
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language of the driver name that the caller is
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requesting, and it must match one of the
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languages specified in SupportedLanguages. The
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number of languages supported by a driver is up
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to the driver writer. Language is specified in
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RFC 4646 or ISO 639-2 language code format.
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@param[out] ControllerName A pointer to the Unicode string to return.
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This Unicode string is the name of the
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controller specified by ControllerHandle and
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ChildHandle in the language specified by
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Language, from the point of view of the driver
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specified by This.
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@retval EFI_SUCCESS The Unicode string for the user readable name in
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the language specified by Language for the
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driver specified by This was returned in
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DriverName.
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@retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
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@retval EFI_INVALID_PARAMETER ChildHandle is not NULL, and it is not a valid
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EFI_HANDLE.
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@retval EFI_INVALID_PARAMETER Language is NULL.
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@retval EFI_INVALID_PARAMETER ControllerName is NULL.
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@retval EFI_UNSUPPORTED The driver specified by This is not currently
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managing the controller specified by
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ControllerHandle and ChildHandle.
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@retval EFI_UNSUPPORTED The driver specified by This does not support
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the language specified by Language.
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**/
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EFI_STATUS
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EFIAPI
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IScsiComponentNameGetControllerName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN CHAR8 *Language,
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OUT CHAR16 **ControllerName
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)
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{
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EFI_STATUS Status;
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EFI_HANDLE IScsiController;
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BOOLEAN Ipv6Flag;
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EFI_GUID *IScsiPrivateGuid;
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ISCSI_PRIVATE_PROTOCOL *IScsiIdentifier;
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EFI_EXT_SCSI_PASS_THRU_PROTOCOL *IScsiExtScsiPassThru;
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if (ControllerHandle == NULL) {
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return EFI_UNSUPPORTED;
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}
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//
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// Get the handle of the controller we are controling.
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//
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IScsiController = NetLibGetNicHandle (ControllerHandle, &gEfiTcp4ProtocolGuid);
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if (IScsiController != NULL) {
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IScsiPrivateGuid = &gIScsiV4PrivateGuid;
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Ipv6Flag = FALSE;
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} else {
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IScsiController = NetLibGetNicHandle (ControllerHandle, &gEfiTcp6ProtocolGuid);
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if (IScsiController != NULL) {
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IScsiPrivateGuid = &gIScsiV6PrivateGuid;
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Ipv6Flag = TRUE;
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} else {
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return EFI_UNSUPPORTED;
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}
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}
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Status = gBS->OpenProtocol (
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IScsiController,
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IScsiPrivateGuid,
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(VOID **) &IScsiIdentifier,
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NULL,
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NULL,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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if(ChildHandle != NULL) {
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if(!Ipv6Flag) {
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//
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// Make sure this driver produced ChildHandle
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//
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Status = EfiTestChildHandle (
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ControllerHandle,
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ChildHandle,
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&gEfiTcp4ProtocolGuid
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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} else {
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//
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// Make sure this driver produced ChildHandle
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//
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Status = EfiTestChildHandle (
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ControllerHandle,
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ChildHandle,
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&gEfiTcp6ProtocolGuid
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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}
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//
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// Retrieve an instance of a produced protocol from ChildHandle
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//
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Status = gBS->OpenProtocol (
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ChildHandle,
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&gEfiExtScsiPassThruProtocolGuid,
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(VOID **)&IScsiExtScsiPassThru,
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NULL,
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NULL,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Update the component name for this child handle.
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//
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Status = UpdateName (IScsiExtScsiPassThru, Ipv6Flag);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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}
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return LookupUnicodeString2 (
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Language,
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This->SupportedLanguages,
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gIScsiControllerNameTable,
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ControllerName,
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(BOOLEAN)(This == &gIScsiComponentName)
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);
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}
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