sandbox: Add host filesystem

This allows reading of files from the host filesystem in sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>

include/sandboxfs.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2012, Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __SANDBOX_FS__
+#define __SANDBOX_FS__
+
+int sandbox_fs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info);
+
+long sandbox_fs_read_at(const char *filename, unsigned long pos,
+			     void *buffer, unsigned long maxsize);
+
+void sandbox_fs_close(void);
+int sandbox_fs_ls(const char *dirname);
+int fs_read_sandbox(const char *filename, void *buf, int offset, int len);
+
+#endif