diff options
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/efi/snponly.c')
| -rw-r--r-- | qemu/roms/ipxe/src/drivers/net/efi/snponly.c | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/efi/snponly.c b/qemu/roms/ipxe/src/drivers/net/efi/snponly.c deleted file mode 100644 index 73abfdbf4..000000000 --- a/qemu/roms/ipxe/src/drivers/net/efi/snponly.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * 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/init.h> -#include <ipxe/efi/efi.h> -#include <ipxe/efi/efi_driver.h> -#include <ipxe/efi/efi_utils.h> -#include <ipxe/efi/Protocol/SimpleNetwork.h> -#include <ipxe/efi/Protocol/NetworkInterfaceIdentifier.h> -#include "snpnet.h" -#include "nii.h" - -/** @file - * - * EFI chainloaded-device-only driver - * - */ - -/** A chainloaded protocol */ -struct chained_protocol { - /** Protocol GUID */ - EFI_GUID *protocol; - /** - * Protocol instance installed on the loaded image's device handle - * - * We match against the protocol instance (rather than simply - * matching against the device handle itself) because some - * systems load us via a child of the underlying device, with - * a duplicate protocol installed on the child handle. - */ - void *interface; -}; - -/** Chainloaded SNP protocol */ -static struct chained_protocol chained_snp = { - .protocol = &efi_simple_network_protocol_guid, -}; - -/** Chainloaded NII protocol */ -static struct chained_protocol chained_nii = { - .protocol = &efi_nii31_protocol_guid, -}; - -/** - * Locate chainloaded protocol instance - * - * @v chained Chainloaded protocol - * @ret rc Return status code - */ -static int chained_locate ( struct chained_protocol *chained ) { - EFI_BOOT_SERVICES *bs = efi_systab->BootServices; - EFI_HANDLE device = efi_loaded_image->DeviceHandle; - EFI_HANDLE parent; - EFI_STATUS efirc; - int rc; - - /* Locate handle supporting this protocol */ - if ( ( rc = efi_locate_device ( device, chained->protocol, - &parent ) ) != 0 ) { - DBGC ( device, "CHAINED %p %s does not support %s: %s\n", - device, efi_handle_name ( device ), - efi_guid_ntoa ( chained->protocol ), strerror ( rc ) ); - goto err_locate_device; - } - DBGC ( device, "CHAINED %p %s found %s on ", device, - efi_handle_name ( device ), efi_guid_ntoa ( chained->protocol )); - DBGC ( device, "%p %s\n", parent, efi_handle_name ( parent ) ); - - /* Get protocol instance */ - if ( ( efirc = bs->OpenProtocol ( parent, chained->protocol, - &chained->interface, efi_image_handle, - device, - EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){ - rc = -EEFI ( efirc ); - DBGC ( device, "CHAINED %p %s could not open %s on ", - device, efi_handle_name ( device ), - efi_guid_ntoa ( chained->protocol ) ); - DBGC ( device, "%p %s: %s\n", - parent, efi_handle_name ( parent ), strerror ( rc ) ); - goto err_open_protocol; - } - - err_locate_device: - bs->CloseProtocol ( parent, chained->protocol, efi_image_handle, - device ); - err_open_protocol: - return rc; -} - -/** - * Check to see if driver supports a device - * - * @v device EFI device handle - * @v chained Chainloaded protocol - * @ret rc Return status code - */ -static int chained_supported ( EFI_HANDLE device, - struct chained_protocol *chained ) { - EFI_BOOT_SERVICES *bs = efi_systab->BootServices; - EFI_STATUS efirc; - void *interface; - int rc; - - /* Get protocol */ - if ( ( efirc = bs->OpenProtocol ( device, chained->protocol, &interface, - efi_image_handle, device, - EFI_OPEN_PROTOCOL_GET_PROTOCOL ))!=0){ - rc = -EEFI ( efirc ); - DBGCP ( device, "CHAINED %p %s is not a %s device\n", - device, efi_handle_name ( device ), - efi_guid_ntoa ( chained->protocol ) ); - goto err_open_protocol; - } - - /* Test for a match against the chainloading device */ - if ( interface != chained->interface ) { - DBGC ( device, "CHAINED %p %s %p is not the chainloaded " - "%s\n", device, efi_handle_name ( device ), - interface, efi_guid_ntoa ( chained->protocol ) ); - rc = -ENOTTY; - goto err_no_match; - } - - /* Success */ - rc = 0; - DBGC ( device, "CHAINED %p %s %p is the chainloaded %s\n", - device, efi_handle_name ( device ), interface, - efi_guid_ntoa ( chained->protocol ) ); - - err_no_match: - bs->CloseProtocol ( device, chained->protocol, efi_image_handle, - device ); - err_open_protocol: - return rc; -} - -/** - * Check to see if driver supports a device - * - * @v device EFI device handle - * @ret rc Return status code - */ -static int snponly_supported ( EFI_HANDLE device ) { - - return chained_supported ( device, &chained_snp ); -} - -/** - * Check to see if driver supports a device - * - * @v device EFI device handle - * @ret rc Return status code - */ -static int niionly_supported ( EFI_HANDLE device ) { - - return chained_supported ( device, &chained_nii ); -} - -/** EFI SNP chainloading-device-only driver */ -struct efi_driver snponly_driver __efi_driver ( EFI_DRIVER_NORMAL ) = { - .name = "SNPONLY", - .supported = snponly_supported, - .start = snpnet_start, - .stop = snpnet_stop, -}; - -/** EFI NII chainloading-device-only driver */ -struct efi_driver niionly_driver __efi_driver ( EFI_DRIVER_NORMAL ) = { - .name = "NIIONLY", - .supported = niionly_supported, - .start = nii_start, - .stop = nii_stop, -}; - -/** - * Initialise EFI chainloaded-device-only driver - * - */ -static void chained_init ( void ) { - - chained_locate ( &chained_snp ); - chained_locate ( &chained_nii ); -} - -/** EFI chainloaded-device-only initialisation function */ -struct init_fn chained_init_fn __init_fn ( INIT_LATE ) = { - .initialise = chained_init, -}; |