1 files changed, 72 insertions, 0 deletions
diff --git a/grub-core/kern/coreboot/cbtable.c b/grub-core/kern/coreboot/cbtable.c
new file mode 100644
index 0000000..aec63db
--- /dev/null
+++ b/grub-core/kern/coreboot/cbtable.c
@@ -0,0 +1,72 @@
+/*
+ *  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;
+}