| /* |
| * GRUB -- GRand Unified Bootloader |
| * Copyright (C) 2007,2008,2013 Free Software Foundation, Inc. |
| * |
| * GRUB 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 3 of the License, or |
| * (at your option) any later version. |
| * |
| * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <grub/i386/coreboot/memory.h> |
| #include <grub/coreboot/lbio.h> |
| #include <grub/types.h> |
| #include <grub/err.h> |
| #include <grub/misc.h> |
| #include <grub/dl.h> |
| |
| #pragma GCC diagnostic ignored "-Wcast-align" |
| |
| /* Helper for grub_linuxbios_table_iterate. */ |
| int |
| grub_linuxbios_check_signature (grub_linuxbios_table_header_t tbl_header) |
| { |
| if (! grub_memcmp (tbl_header->signature, "LBIO", 4)) |
| return 1; |
| |
| return 0; |
| } |
| |
| grub_err_t |
| grub_linuxbios_table_iterate (int (*hook) (grub_linuxbios_table_item_t, |
| void *), |
| void *hook_data) |
| { |
| grub_linuxbios_table_header_t table_header = grub_linuxbios_get_tables (); |
| grub_linuxbios_table_item_t table_item; |
| |
| if (!table_header) |
| return 0; |
| |
| signature_found: |
| |
| table_item = |
| (grub_linuxbios_table_item_t) ((char *) table_header + |
| table_header->header_size); |
| for (; table_item < (grub_linuxbios_table_item_t) ((char *) table_header |
| + table_header->header_size |
| + table_header->table_size); |
| table_item = (grub_linuxbios_table_item_t) ((char *) table_item + table_item->size)) |
| { |
| if (table_item->tag == GRUB_LINUXBIOS_MEMBER_LINK |
| && grub_linuxbios_check_signature ((grub_linuxbios_table_header_t) (grub_addr_t) |
| *(grub_uint64_t *) (table_item + 1))) |
| { |
| table_header = (grub_linuxbios_table_header_t) (grub_addr_t) |
| *(grub_uint64_t *) (table_item + 1); |
| goto signature_found; |
| } |
| if (hook (table_item, hook_data)) |
| return 1; |
| } |
| |
| return 0; |
| } |