From 63f3a7187b25539e49b59cc63a982768abef8550 Mon Sep 17 00:00:00 2001 From: Namjae Jeon Date: Thu, 14 Nov 2019 21:45:27 -0500 Subject: [PATCH] exfat-tools: initial commit Signed-off-by: Namjae Jeon --- COPYING | 339 +++++++++++++++++++++++++++++++++++++++++++++++ Makefile.am | 5 + autogen.sh | 3 + configure.ac | 37 ++++++ dump/Makefile.am | 6 + dump/dump.c | 13 ++ fsck/Makefile.am | 6 + fsck/fsck.c | 13 ++ include/exfat.h | 216 ++++++++++++++++++++++++++++++ lib/Makefile.am | 5 + lib/libexfat.c | 7 + mkfs/Makefile.am | 6 + mkfs/mkfs.c | 40 ++++++ 13 files changed, 696 insertions(+) create mode 100755 COPYING create mode 100755 Makefile.am create mode 100755 autogen.sh create mode 100755 configure.ac create mode 100644 dump/Makefile.am create mode 100644 dump/dump.c create mode 100644 fsck/Makefile.am create mode 100644 fsck/fsck.c create mode 100644 include/exfat.h create mode 100644 lib/Makefile.am create mode 100644 lib/libexfat.c create mode 100644 mkfs/Makefile.am create mode 100644 mkfs/mkfs.c diff --git a/COPYING b/COPYING new file mode 100755 index 00000000..941c87de --- /dev/null +++ b/COPYING @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/Makefile.am b/Makefile.am new file mode 100755 index 00000000..4297c79d --- /dev/null +++ b/Makefile.am @@ -0,0 +1,5 @@ +## Makefile.am + +ACLOCAL_AMFLAGS = -I m4 + +SUBDIRS = lib mkfs fsck dump diff --git a/autogen.sh b/autogen.sh new file mode 100755 index 00000000..552165f7 --- /dev/null +++ b/autogen.sh @@ -0,0 +1,3 @@ +#!/bin/sh + +autoreconf --install --verbose diff --git a/configure.ac b/configure.ac new file mode 100755 index 00000000..fca92cf1 --- /dev/null +++ b/configure.ac @@ -0,0 +1,37 @@ +AC_PREREQ([2.68]) + +m4_define([exfat_tools_major_ver], [1]) +m4_define([exfat_tools_minor_ver], [0]) +m4_define([exfat_tools_micro_ver], [0]) + +m4_define([exfat_tools_version], + [exfat_tools_major_ver.exfat_tools_minor_ver.exfat_tools_micro_ver]) + +AC_INIT([CIFSD tools], [exfat_tools_version], + [linkinjeon@gmail.com]) + +AC_DEFINE([EXFAT_TOOLS_VERSION], "exfat_tools_version", [exfat-tools version]) + +AC_CONFIG_SRCDIR([config.h.in]) +AC_CONFIG_HEADER([config.h]) +AC_CONFIG_MACRO_DIR([m4]) +AC_CONFIG_AUX_DIR([build-aux]) +AM_INIT_AUTOMAKE([foreign tar-pax dist-xz subdir-objects]) + +AC_LANG([C]) +AC_PROG_CC +AC_PROG_CC_STDC +AM_SILENT_RULES([yes]) +AC_PROG_LIBTOOL + +PKG_PROG_PKG_CONFIG([0.9]) + +AC_CONFIG_FILES([ + Makefile + lib/Makefile + mkfs/Makefile + fsck/Makefile + dump/Makefile +]) + +AC_OUTPUT diff --git a/dump/Makefile.am b/dump/Makefile.am new file mode 100644 index 00000000..5a9b9f55 --- /dev/null +++ b/dump/Makefile.am @@ -0,0 +1,6 @@ +AM_CFLAGS = -I$(top_srcdir)/include -fno-common +dump_LDADD = $(top_builddir)/lib/libexfat.la + +sbin_PROGRAMS = dump.exfat + +dump_SOURCES = dump.c diff --git a/dump/dump.c b/dump/dump.c new file mode 100644 index 00000000..7abb21de --- /dev/null +++ b/dump/dump.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2019 Namjae Jeon + */ + +#include + +#include "exfat.h" + +int main() +{ + return 0; +} diff --git a/fsck/Makefile.am b/fsck/Makefile.am new file mode 100644 index 00000000..78df08ce --- /dev/null +++ b/fsck/Makefile.am @@ -0,0 +1,6 @@ +AM_CFLAGS = -I$(top_srcdir)/include -fno-common +fsck_LDADD = $(top_builddir)/lib/libexfat.la + +sbin_PROGRAMS = fsck.exfat + +fsck_SOURCES = fsck.c diff --git a/fsck/fsck.c b/fsck/fsck.c new file mode 100644 index 00000000..7abb21de --- /dev/null +++ b/fsck/fsck.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2019 Namjae Jeon + */ + +#include + +#include "exfat.h" + +int main() +{ + return 0; +} diff --git a/include/exfat.h b/include/exfat.h new file mode 100644 index 00000000..caa4bc0c --- /dev/null +++ b/include/exfat.h @@ -0,0 +1,216 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2012-2013 Samsung Electronics Co., Ltd. + */ + +#ifndef _EXFAT_H +#define _EXFAT_H + +#include +#include + +#ifdef HAVE_CONFIG_H +#include +#endif + +typedef uint16_t __le16; +typedef uint32_t __le32; +typedef uint64_t __le64; +typedef uint8_t __u8; + +#if __BYTE_ORDER == __LITTLE_ENDIAN +#define cpu_to_le16(x) (x) +#define cpu_to_le32(x) (x) +#define cpu_to_le64(x) (x) +#else +#define cpu_to_le16(x) ((((x) >> 8) & 0xffu) | (((x) & 0xffu) << 8)) +#define cpu_to_le32(x) \ + ((((x) & 0xff000000u) >> 24) | (((x) & 0x00ff0000u) >> 8) | \ + (((x) & 0x0000ff00u) << 8) | (((x) & 0x000000ffu) << 24)) +#define cpu_to_le64(x) ((cpu_to_le32(x) << 32) | cpu_to_le32((x) >> 32)) +#endif + +#define le64_to_cpu(x) cpu_to_le64(x) +#define le32_to_cpu(x) cpu_to_le32(x) +#define le16_to_cpu(x) cpu_to_le16(x) + +#define PBR_SIGNATURE 0xAA55 + +#define VOL_CLEAN 0x0000 +#define VOL_DIRTY 0x0002 + +#define DENTRY_SIZE 32 /* directory entry size */ +#define DENTRY_SIZE_BITS 5 +/* exFAT allows 8388608(256MB) directory entries */ +#define MAX_EXFAT_DENTRIES 8388608 + +/* dentry types */ +#define MSDOS_DELETED 0xE5 /* deleted mark */ +#define MSDOS_UNUSED 0x00 /* end of directory */ + +#define EXFAT_UNUSED 0x00 /* end of directory */ +#define EXFAT_DELETE ~(0x80) +#define IS_EXFAT_DELETED(x) ((x) < 0x80) /* deleted file (0x01~0x7F) */ +#define EXFAT_INVAL 0x80 /* invalid value */ +#define EXFAT_BITMAP 0x81 /* allocation bitmap */ +#define EXFAT_UPCASE 0x82 /* upcase table */ +#define EXFAT_VOLUME 0x83 /* volume label */ +#define EXFAT_FILE 0x85 /* file or dir */ +#define EXFAT_GUID 0xA0 +#define EXFAT_PADDING 0xA1 +#define EXFAT_ACLTAB 0xA2 +#define EXFAT_STREAM 0xC0 /* stream entry */ +#define EXFAT_NAME 0xC1 /* file name entry */ +#define EXFAT_ACL 0xC2 /* stream entry */ + +/* checksum types */ +#define CS_DIR_ENTRY 0 +#define CS_PBR_SECTOR 1 +#define CS_DEFAULT 2 + +/* file attributes */ +#define ATTR_READONLY 0x0001 +#define ATTR_HIDDEN 0x0002 +#define ATTR_SYSTEM 0x0004 +#define ATTR_VOLUME 0x0008 +#define ATTR_SUBDIR 0x0010 +#define ATTR_ARCHIVE 0x0020 +#define ATTR_EXTEND (ATTR_READONLY | ATTR_HIDDEN | ATTR_SYSTEM | \ + ATTR_VOLUME) /* 0x000F */ + +#define ATTR_EXTEND_MASK (ATTR_EXTEND | ATTR_SUBDIR | ATTR_ARCHIVE) +#define ATTR_RWMASK (ATTR_HIDDEN | ATTR_SYSTEM | ATTR_VOLUME | \ + ATTR_SUBDIR | ATTR_ARCHIVE) + +#define ATTR_READONLY_LE cpu_to_le16(0x0001) +#define ATTR_HIDDEN_LE cpu_to_le16(0x0002) +#define ATTR_SYSTEM_LE cpu_to_le16(0x0004) +#define ATTR_VOLUME_LE cpu_to_le16(0x0008) +#define ATTR_SUBDIR_LE cpu_to_le16(0x0010) +#define ATTR_ARCHIVE_LE cpu_to_le16(0x0020) + +/* EXFAT BIOS parameter block (64 bytes) */ +struct bpb64 { + __u8 jmp_boot[3]; + __u8 oem_name[8]; + __u8 res_zero[53]; +}; + +/* EXFAT EXTEND BIOS parameter block (56 bytes) */ +struct bsx64 { + __le64 vol_offset; + __le64 vol_length; + __le32 fat_offset; + __le32 fat_length; + __le32 clu_offset; + __le32 clu_count; + __le32 root_cluster; + __le32 vol_serial; + __u8 fs_version[2]; + __le16 vol_flags; + __u8 sect_size_bits; + __u8 sect_per_clus_bits; + __u8 num_fats; + __u8 phy_drv_no; + __u8 perc_in_use; + __u8 reserved2[7]; +}; + +/* EXFAT PBR[BPB+BSX] (120 bytes) */ +struct pbr64 { + struct bpb64 bpb; + struct bsx64 bsx; +}; + +/* Common PBR[Partition Boot Record] (512 bytes) */ +struct pbr { + union { + __u8 raw[64]; + struct bpb64 f64; + } bpb; + union { + __u8 raw[56]; + struct bsx64 f64; + } bsx; + __u8 boot_code[390]; + __le16 signature; +}; + +struct exfat_dentry { + __u8 type; + union { + struct { + __u8 num_ext; + __le16 checksum; + __le16 attr; + __le16 reserved1; + __le16 create_time; + __le16 create_date; + __le16 modify_time; + __le16 modify_date; + __le16 access_time; + __le16 access_date; + __u8 create_time_ms; + __u8 modify_time_ms; + __u8 access_time_ms; + __u8 reserved2[9]; + } __attribute__((packed)) file; /* file directory entry */ + struct { + __u8 flags; + __u8 reserved1; + __u8 name_len; + __le16 name_hash; + __le16 reserved2; + __le64 valid_size; + __le32 reserved3; + __le32 start_clu; + __le64 size; + } __attribute__((packed)) stream; /* stream extension directory entry */ + struct { + __u8 flags; + __le16 unicode_0_14[15]; + } __attribute__((packed)) name; /* file name directory entry */ + struct { + __u8 flags; + __u8 reserved[18]; + __le32 start_clu; + __le64 size; + } __attribute__((packed)) bitmap; /* allocation bitmap directory entry */ + struct { + __u8 reserved1[3]; + __le32 checksum; + __u8 reserved2[12]; + __le32 start_clu; + __le64 size; + } __attribute__((packed)) upcase; /* up-case table directory entry */ + } __attribute__((packed)) dentry; +} __attribute__((packed)); + +#define file_num_ext dentry.file.num_ext +#define file_checksum dentry.file.checksum +#define file_attr dentry.file.attr +#define file_create_time dentry.file.create_time +#define file_create_date dentry.file.create_date +#define file_modify_time dentry.file.modify_time +#define file_modify_date dentry.file.modify_date +#define file_access_time dentry.file.access_time +#define file_access_date dentry.file.access_date +#define file_create_time_ms dentry.file.create_time_ms +#define file_modify_time_ms dentry.file.modify_time_ms +#define file_access_time_ms dentry.file.access_time_ms +#define stream_flags dentry.stream.flags +#define stream_name_len dentry.stream.name_len +#define stream_name_hash dentry.stream.name_hash +#define stream_start_clu dentry.stream.start_clu +#define stream_valid_size dentry.stream.valid_size +#define stream_size dentry.stream.size +#define name_flags dentry.name.flags +#define name_unicode dentry.name.unicode_0_14 +#define bitmap_flags dentry.bitmap.flags +#define bitmap_start_clu dentry.bitmap.start_clu +#define bitmap_size dentry.bitmap.size +#define upcase_start_clu dentry.upcase.start_clu +#define upcase_size dentry.upcase.size +#define upcase_checksum dentry.upcase.checksum + +#endif /* !_EXFAT_H */ diff --git a/lib/Makefile.am b/lib/Makefile.am new file mode 100644 index 00000000..1c952b4d --- /dev/null +++ b/lib/Makefile.am @@ -0,0 +1,5 @@ +AM_CFLAGS = -I$(top_srcdir)/include -fno-common + +lib_LTLIBRARIES = libexfat.la + +libexfat_la_SOURCES = libexfat.c diff --git a/lib/libexfat.c b/lib/libexfat.c new file mode 100644 index 00000000..ff31d390 --- /dev/null +++ b/lib/libexfat.c @@ -0,0 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2019 Namjae Jeon + */ + + + diff --git a/mkfs/Makefile.am b/mkfs/Makefile.am new file mode 100644 index 00000000..b27c845b --- /dev/null +++ b/mkfs/Makefile.am @@ -0,0 +1,6 @@ +AM_CFLAGS = -I$(top_srcdir)/include $(GLIB_CFLAGS) -fno-common +mkfs_LDADD = $(top_builddir)/lib/libexfat.la + +sbin_PROGRAMS = mkfs.exfat + +mkfs_SOURCES = mkfs.c diff --git a/mkfs/mkfs.c b/mkfs/mkfs.c new file mode 100644 index 00000000..6722e8cd --- /dev/null +++ b/mkfs/mkfs.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2019 Namjae Jeon + */ + +#include +#include +#include +#include + +#include "exfat.h" + +static void usage(void) +{ + fprintf(stderr, "exfat-tools version : %s\n", EXFAT_TOOLS_VERSION); + fprintf(stderr, "Usage: mkfs.exfat\n"); + + fprintf(stderr, "\t-v | --verbose\n"); + + exit(EXIT_FAILURE); +} + +int main(int argc, char *argv[]) +{ + int c; + int ret = EXIT_FAILURE; + + opterr = 0; + while ((c = getopt(argc, argv, "c:i:a:d:u:p:vh")) != EOF) + switch (c) { + case 'v': + break; + case '?': + case 'h': + default: + usage(); + } + + return 0; +}