diff options
Diffstat (limited to 'qemu/roms/ipxe/src/interface/efi/efi_download.c')
| -rw-r--r-- | qemu/roms/ipxe/src/interface/efi/efi_download.c | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/qemu/roms/ipxe/src/interface/efi/efi_download.c b/qemu/roms/ipxe/src/interface/efi/efi_download.c deleted file mode 100644 index 1218852e2..000000000 --- a/qemu/roms/ipxe/src/interface/efi/efi_download.c +++ /dev/null @@ -1,240 +0,0 @@ -/* - * Copyright (C) 2010 VMware, Inc. All Rights Reserved. - * - * 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 St, Fifth Floor, Boston, MA 02110-1301 USA. - */ - -FILE_LICENCE ( GPL2_OR_LATER ); - -#include <stdlib.h> -#include <string.h> -#include <errno.h> -#include <ipxe/open.h> -#include <ipxe/process.h> -#include <ipxe/iobuf.h> -#include <ipxe/xfer.h> -#include <ipxe/efi/efi.h> -#include <ipxe/efi/efi_snp.h> -#include <ipxe/efi/efi_download.h> - -/** iPXE download protocol GUID */ -static EFI_GUID ipxe_download_protocol_guid - = IPXE_DOWNLOAD_PROTOCOL_GUID; - -/** A single in-progress file */ -struct efi_download_file { - /** Data transfer interface that provides downloaded data */ - struct interface xfer; - - /** Current file position */ - size_t pos; - - /** Data callback */ - IPXE_DOWNLOAD_DATA_CALLBACK data_callback; - - /** Finish callback */ - IPXE_DOWNLOAD_FINISH_CALLBACK finish_callback; - - /** Callback context */ - void *context; -}; - -/* xfer interface */ - -/** - * Transfer finished or was aborted - * - * @v file Data transfer file - * @v rc Reason for close - */ -static void efi_download_close ( struct efi_download_file *file, int rc ) { - - file->finish_callback ( file->context, EFIRC ( rc ) ); - - intf_shutdown ( &file->xfer, rc ); - - efi_snp_release(); -} - -/** - * Process received data - * - * @v file Data transfer file - * @v iobuf I/O buffer - * @v meta Data transfer metadata - * @ret rc Return status code - */ -static int efi_download_deliver_iob ( struct efi_download_file *file, - struct io_buffer *iobuf, - struct xfer_metadata *meta ) { - EFI_STATUS efirc; - size_t len = iob_len ( iobuf ); - int rc; - - /* Calculate new buffer position */ - if ( meta->flags & XFER_FL_ABS_OFFSET ) - file->pos = 0; - file->pos += meta->offset; - - /* Call out to the data handler */ - if ( ( efirc = file->data_callback ( file->context, iobuf->data, - len, file->pos ) ) != 0 ) { - rc = -EEFI ( efirc ); - goto err_callback; - } - - /* Update current buffer position */ - file->pos += len; - - /* Success */ - rc = 0; - - err_callback: - free_iob ( iobuf ); - return rc; -} - -/** Data transfer interface operations */ -static struct interface_operation efi_xfer_operations[] = { - INTF_OP ( xfer_deliver, struct efi_download_file *, efi_download_deliver_iob ), - INTF_OP ( intf_close, struct efi_download_file *, efi_download_close ), -}; - -/** EFI download data transfer interface descriptor */ -static struct interface_descriptor efi_download_file_xfer_desc = - INTF_DESC ( struct efi_download_file, xfer, efi_xfer_operations ); - -/** - * Start downloading a file, and register callback functions to handle the - * download. - * - * @v This iPXE Download Protocol instance - * @v Url URL to download from - * @v DataCallback Callback that will be invoked when data arrives - * @v FinishCallback Callback that will be invoked when the download ends - * @v Context Context passed to the Data and Finish callbacks - * @v File Token that can be used to abort the download - * @ret Status EFI status code - */ -static EFI_STATUS EFIAPI -efi_download_start ( IPXE_DOWNLOAD_PROTOCOL *This __unused, - CHAR8 *Url, - IPXE_DOWNLOAD_DATA_CALLBACK DataCallback, - IPXE_DOWNLOAD_FINISH_CALLBACK FinishCallback, - VOID *Context, - IPXE_DOWNLOAD_FILE *File ) { - struct efi_download_file *file; - int rc; - - file = malloc ( sizeof ( struct efi_download_file ) ); - if ( file == NULL ) { - return EFI_OUT_OF_RESOURCES; - } - - intf_init ( &file->xfer, &efi_download_file_xfer_desc, NULL ); - rc = xfer_open ( &file->xfer, LOCATION_URI_STRING, Url ); - if ( rc ) { - free ( file ); - return EFIRC ( rc ); - } - - efi_snp_claim(); - file->pos = 0; - file->data_callback = DataCallback; - file->finish_callback = FinishCallback; - file->context = Context; - *File = file; - return EFI_SUCCESS; -} - -/** - * Forcibly abort downloading a file that is currently in progress. - * - * It is not safe to call this function after the Finish callback has executed. - * - * @v This iPXE Download Protocol instance - * @v File Token obtained from Start - * @v Status Reason for aborting the download - * @ret Status EFI status code - */ -static EFI_STATUS EFIAPI -efi_download_abort ( IPXE_DOWNLOAD_PROTOCOL *This __unused, - IPXE_DOWNLOAD_FILE File, - EFI_STATUS Status ) { - struct efi_download_file *file = File; - - efi_download_close ( file, -EEFI ( Status ) ); - return EFI_SUCCESS; -} - -/** - * Poll for more data from iPXE. This function will invoke the registered - * callbacks if data is available or if downloads complete. - * - * @v This iPXE Download Protocol instance - * @ret Status EFI status code - */ -static EFI_STATUS EFIAPI -efi_download_poll ( IPXE_DOWNLOAD_PROTOCOL *This __unused ) { - step(); - return EFI_SUCCESS; -} - -/** Publicly exposed iPXE download protocol */ -static IPXE_DOWNLOAD_PROTOCOL ipxe_download_protocol_interface = { - .Start = efi_download_start, - .Abort = efi_download_abort, - .Poll = efi_download_poll -}; - -/** - * Install iPXE download protocol - * - * @v handle EFI handle - * @ret rc Return status code - */ -int efi_download_install ( EFI_HANDLE handle ) { - EFI_BOOT_SERVICES *bs = efi_systab->BootServices; - EFI_STATUS efirc; - int rc; - - efirc = bs->InstallMultipleProtocolInterfaces ( - &handle, - &ipxe_download_protocol_guid, - &ipxe_download_protocol_interface, - NULL ); - if ( efirc ) { - rc = -EEFI ( efirc ); - DBG ( "Could not install download protocol: %s\n", - strerror ( rc ) ); - return rc; - } - - return 0; -} - -/** - * Uninstall iPXE download protocol - * - * @v handle EFI handle - */ -void efi_download_uninstall ( EFI_HANDLE handle ) { - EFI_BOOT_SERVICES *bs = efi_systab->BootServices; - - bs->UninstallMultipleProtocolInterfaces ( - handle, - &ipxe_download_protocol_guid, - &ipxe_download_protocol_interface, NULL ); -} |