diff options
Diffstat (limited to 'payloads')
| -rw-r--r-- | payloads/libpayload/include/archive.h | 92 | ||||
| -rw-r--r-- | payloads/libpayload/include/libpayload.h | 1 |
2 files changed, 93 insertions, 0 deletions
diff --git a/payloads/libpayload/include/archive.h b/payloads/libpayload/include/archive.h new file mode 100644 index 0000000000..47dc93cee0 --- /dev/null +++ b/payloads/libpayload/include/archive.h @@ -0,0 +1,92 @@ +/* + * 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 diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h index a1dbb0143b..1b66bf8ddb 100644 --- a/payloads/libpayload/include/libpayload.h +++ b/payloads/libpayload/include/libpayload.h @@ -61,6 +61,7 @@ #include <arch/virtual.h> #include <sysinfo.h> #include <pci.h> +#include <archive.h> #define MIN(a,b) ((a) < (b) ? (a) : (b)) #define MAX(a,b) ((a) > (b) ? (a) : (b)) |