mirror of https://github.com/ipxe/ipxe.git
99 lines
2.9 KiB
C
99 lines
2.9 KiB
C
/*
|
|
* Copyright (C) 2014 Michael Brown <mbrown@fensystems.co.uk>.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
* 02110-1301, USA.
|
|
*
|
|
* You can also choose to distribute this program under the terms of
|
|
* the Unmodified Binary Distribution Licence (as given in the file
|
|
* COPYING.UBDL), provided that you have satisfied its requirements.
|
|
*/
|
|
|
|
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
|
|
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <ipxe/if_ether.h>
|
|
#include <ipxe/vlan.h>
|
|
#include <ipxe/efi/efi.h>
|
|
#include <ipxe/efi/efi_path.h>
|
|
#include <ipxe/efi/efi_autoboot.h>
|
|
#include <ipxe/efi/Protocol/SimpleNetwork.h>
|
|
#include <usr/autoboot.h>
|
|
|
|
/** @file
|
|
*
|
|
* EFI autoboot device
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* Identify autoboot device
|
|
*
|
|
* @v device Device handle
|
|
* @v path Device path
|
|
* @ret rc Return status code
|
|
*/
|
|
int efi_set_autoboot_ll_addr ( EFI_HANDLE device,
|
|
EFI_DEVICE_PATH_PROTOCOL *path ) {
|
|
EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
|
|
union {
|
|
EFI_SIMPLE_NETWORK_PROTOCOL *snp;
|
|
void *interface;
|
|
} snp;
|
|
EFI_SIMPLE_NETWORK_MODE *mode;
|
|
EFI_STATUS efirc;
|
|
unsigned int vlan;
|
|
int rc;
|
|
|
|
/* Look for an SNP instance on the image's device handle */
|
|
if ( ( efirc = bs->OpenProtocol ( device,
|
|
&efi_simple_network_protocol_guid,
|
|
&snp.interface, efi_image_handle,
|
|
NULL,
|
|
EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){
|
|
rc = -EEFI ( efirc );
|
|
DBGC ( device, "EFI %s has no SNP instance: %s\n",
|
|
efi_handle_name ( device ), strerror ( rc ) );
|
|
return rc;
|
|
}
|
|
|
|
/* Record autoboot device */
|
|
mode = snp.snp->Mode;
|
|
vlan = efi_path_vlan ( path );
|
|
set_autoboot_ll_addr ( &mode->CurrentAddress, mode->HwAddressSize,
|
|
vlan );
|
|
DBGC ( device, "EFI %s found autoboot link-layer address:\n",
|
|
efi_handle_name ( device ) );
|
|
DBGC_HDA ( device, 0, &mode->CurrentAddress, mode->HwAddressSize );
|
|
if ( vlan ) {
|
|
DBGC ( device, "EFI %s found autoboot VLAN %d\n",
|
|
efi_handle_name ( device ), vlan );
|
|
}
|
|
|
|
/* Configure automatic VLAN device, if applicable */
|
|
if ( vlan && ( mode->HwAddressSize == ETH_ALEN ) ) {
|
|
vlan_auto ( &mode->CurrentAddress, vlan );
|
|
DBGC ( device, "EFI %s configured automatic VLAN %d\n",
|
|
efi_handle_name ( device ), vlan );
|
|
}
|
|
|
|
/* Close protocol */
|
|
bs->CloseProtocol ( device, &efi_simple_network_protocol_guid,
|
|
efi_image_handle, NULL );
|
|
|
|
return 0;
|
|
}
|