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- /** @file
- *
- * PXE exit hook
- *
- */
-
- /*
- * Copyright (C) 2010 Shao Miller <shao.miller@yrdsb.edu.on.ca>.
- *
- * 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 <stdint.h>
- #include <realmode.h>
- #include <pxe.h>
-
- /** PXE exit hook */
- extern segoff_t __data16 ( pxe_exit_hook );
- #define pxe_exit_hook __use_data16 ( pxe_exit_hook )
-
- /**
- * FILE EXIT HOOK
- *
- * @v file_exit_hook Pointer to a struct
- * s_PXENV_FILE_EXIT_HOOK
- * @v s_PXENV_FILE_EXIT_HOOK::Hook SEG16:OFF16 to jump to
- * @ret #PXENV_EXIT_SUCCESS Successfully set hook
- * @ret #PXENV_EXIT_FAILURE We're not an NBP build
- * @ret s_PXENV_FILE_EXIT_HOOK::Status PXE status code
- *
- */
- static PXENV_EXIT_t
- pxenv_file_exit_hook ( struct s_PXENV_FILE_EXIT_HOOK *file_exit_hook ) {
- DBG ( "PXENV_FILE_EXIT_HOOK" );
-
- /* We'll jump to the specified SEG16:OFF16 during exit */
- pxe_exit_hook.segment = file_exit_hook->Hook.segment;
- pxe_exit_hook.offset = file_exit_hook->Hook.offset;
- file_exit_hook->Status = PXENV_STATUS_SUCCESS;
- return PXENV_EXIT_SUCCESS;
- }
-
- /** PXE file API */
- struct pxe_api_call pxe_file_api_exit_hook __pxe_api_call =
- PXE_API_CALL ( PXENV_FILE_EXIT_HOOK, pxenv_file_exit_hook,
- struct s_PXENV_FILE_EXIT_HOOK );
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