| /* |
| * This file is part of the libpayload project. |
| * |
| * Copyright (C) 2015 The ChromiumOS Authors. All rights reserved. |
| * written by Daisuke Nojiri <dnojiri@chromium.org> |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #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 |