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authorDaisuke Nojiri <dnojiri@chromium.org>2015-11-03 15:04:59 -0800
committerPatrick Georgi <pgeorgi@google.com>2016-03-08 17:39:38 +0100
commita5ae62e9d25a07538677dd9967bbe3208f324ef8 (patch)
tree13cc088a27706ddd812a539f8bbf1eb0f96d9107 /util/archive/archive.h
parent491c016d77fa56461e8669e45796da97bbab3c37 (diff)
downloadcoreboot-a5ae62e9d25a07538677dd9967bbe3208f324ef8.tar.xz
util: add archive tool
'archive' concatenates files into a single binary blob. Files are indexed by the base names. See archive.h for the format description. BUG=chromium:502066 BRANCH=tot TEST=Tested on Glados Change-Id: Iea108160e65c8c7bd34c02af824a77cb075ee64b Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 21a9ba860f29599ac029f8d49d32399c4e3a73a8 Original-Change-Id: I46b4efb339e3a1e05772ae752f2861026ca09cfc Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/311200 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://review.coreboot.org/12925 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'util/archive/archive.h')
-rw-r--r--util/archive/archive.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/util/archive/archive.h b/util/archive/archive.h
new file mode 100644
index 0000000000..67c42e2bbb
--- /dev/null
+++ b/util/archive/archive.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2015 The ChromiumOS Authors. All rights reserved.
+ * written by Daisuke Nojiri <dnojiri@chromium.org>
+ *
+ * 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; version 2 of the License.
+ *
+ * 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.
+ */
+
+#ifndef __ARCHIVE_H
+#define __ARCHIVE_H
+
+#include <stdint.h>
+
+/*
+ * Archive file layout:
+ *
+ * +----------------------------------+
+ * | root header |
+ * +----------------------------------+
+ * | file_header[0] |
+ * +----------------------------------+
+ * | file_header[1] |
+ * +----------------------------------+
+ * | ... |
+ * +----------------------------------+
+ * | file_header[count-1] |
+ * +----------------------------------+
+ * | file(0) content |
+ * +----------------------------------+
+ * | file(1) content |
+ * +----------------------------------+
+ * | ... |
+ * +----------------------------------+
+ * | file(count-1) content |
+ * +----------------------------------+
+ */
+
+#define VERSION 0
+#define CBAR_MAGIC "CBAR"
+#define NAME_LENGTH 32
+
+/* Root header */
+struct directory {
+ char magic[4];
+ uint32_t version; /* version of the header. little endian */
+ uint32_t size; /* total size of archive. little endian */
+ uint32_t count; /* number of files. little endian */
+};
+
+/* File header */
+struct dentry {
+ /* file name. null-terminated if shorter than NAME_LENGTH */
+ char name[NAME_LENGTH];
+ /* file offset from the root header. little endian */
+ uint32_t offset;
+ /* file size. little endian */
+ uint32_t size;
+};
+
+static inline struct dentry *get_first_dentry(const struct directory *dir)
+{
+ return (struct dentry *)(dir + 1);
+}
+
+static inline uint32_t get_first_offset(const struct directory *dir)
+{
+ return sizeof(struct directory) + sizeof(struct dentry) * dir->count;
+}
+
+#endif