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author | bigbiff bigbiff <bigbiff@teamw.in> | 2013-01-09 15:09:08 +0100 |
---|---|---|
committer | bigbiff bigbiff <bigbiff@teamw.in> | 2013-01-09 15:09:08 +0100 |
commit | 9c754053b07a724bdd98d039f34899d6a49115b7 (patch) | |
tree | 464885db361a12d83d60cf152142c765562bb92d /exfat/mkfs | |
parent | Add Samsung TouchWiz decryption (diff) | |
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Diffstat (limited to 'exfat/mkfs')
-rw-r--r-- | exfat/mkfs/Android.mk | 21 | ||||
-rw-r--r-- | exfat/mkfs/cbm.c | 74 | ||||
-rw-r--r-- | exfat/mkfs/cbm.h | 28 | ||||
-rw-r--r-- | exfat/mkfs/fat.c | 86 | ||||
-rw-r--r-- | exfat/mkfs/fat.h | 28 | ||||
-rw-r--r-- | exfat/mkfs/main.c | 269 | ||||
-rw-r--r-- | exfat/mkfs/mkexfat.c | 160 | ||||
-rw-r--r-- | exfat/mkfs/mkexfat.h | 47 | ||||
-rw-r--r-- | exfat/mkfs/mkexfatfs.8 | 68 | ||||
-rw-r--r-- | exfat/mkfs/rootdir.c | 100 | ||||
-rw-r--r-- | exfat/mkfs/rootdir.h | 28 | ||||
-rw-r--r-- | exfat/mkfs/uct.c | 50 | ||||
-rw-r--r-- | exfat/mkfs/uct.h | 28 | ||||
-rw-r--r-- | exfat/mkfs/uctc.c | 755 | ||||
-rw-r--r-- | exfat/mkfs/uctc.h | 28 | ||||
-rw-r--r-- | exfat/mkfs/vbr.c | 146 | ||||
-rw-r--r-- | exfat/mkfs/vbr.h | 28 |
17 files changed, 1944 insertions, 0 deletions
diff --git a/exfat/mkfs/Android.mk b/exfat/mkfs/Android.mk new file mode 100644 index 000000000..bccd7c9ac --- /dev/null +++ b/exfat/mkfs/Android.mk @@ -0,0 +1,21 @@ +LOCAL_PATH := $(call my-dir) + +include $(CLEAR_VARS) + +LOCAL_MODULE := mkexfatfs +LOCAL_MODULE_TAGS := optional +LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin +LOCAL_CFLAGS = -D_FILE_OFFSET_BITS=64 +LOCAL_SRC_FILES = cbm.c fat.c main.c mkexfat.c rootdir.c uct.c uctc.c vbr.c +LOCAL_C_INCLUDES += $(LOCAL_PATH) \ + bootable/recovery/exfat/libexfat \ + bootable/recovery/fuse/include +LOCAL_SHARED_LIBRARIES += libz libc libexfat libdl +LOCAL_STATIC_LIBRARIES += libfuse + +include $(BUILD_EXECUTABLE) + +# We need this so that the installed files could be picked up based on the +# local module name +ALL_MODULES.$(LOCAL_MODULE).INSTALLED := \ + $(ALL_MODULES.$(LOCAL_MODULE).INSTALLED) $(SYMLINKS) diff --git a/exfat/mkfs/cbm.c b/exfat/mkfs/cbm.c new file mode 100644 index 000000000..6d948b4cd --- /dev/null +++ b/exfat/mkfs/cbm.c @@ -0,0 +1,74 @@ +/* + cbm.c (09.11.10) + Clusters Bitmap creation code. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#include <limits.h> +#include "cbm.h" +#include "fat.h" +#include "uct.h" +#include "rootdir.h" + +static off64_t cbm_alignment(void) +{ + return get_cluster_size(); +} + +static off64_t cbm_size(void) +{ + return DIV_ROUND_UP( + (get_volume_size() - get_position(&cbm)) / get_cluster_size(), + CHAR_BIT); +} + +static int cbm_write(struct exfat_dev* dev) +{ + uint32_t allocated_clusters = + DIV_ROUND_UP(cbm.get_size(), get_cluster_size()) + + DIV_ROUND_UP(uct.get_size(), get_cluster_size()) + + DIV_ROUND_UP(rootdir.get_size(), get_cluster_size()); + size_t bitmap_size = DIV_ROUND_UP(allocated_clusters, CHAR_BIT); + uint8_t* bitmap = malloc(bitmap_size); + size_t i; + + if (bitmap == NULL) + { + exfat_error("failed to allocate bitmap of %zu bytes", bitmap_size); + return 1; + } + + for (i = 0; i < bitmap_size * CHAR_BIT; i++) + if (i < allocated_clusters) + BMAP_SET(bitmap, i); + else + BMAP_CLR(bitmap, i); + if (exfat_write(dev, bitmap, bitmap_size) < 0) + { + exfat_error("failed to write bitmap of %zu bytes", bitmap_size); + return 1; + } + free(bitmap); + return 0; +} + +const struct fs_object cbm = +{ + .get_alignment = cbm_alignment, + .get_size = cbm_size, + .write = cbm_write, +}; diff --git a/exfat/mkfs/cbm.h b/exfat/mkfs/cbm.h new file mode 100644 index 000000000..176504c0f --- /dev/null +++ b/exfat/mkfs/cbm.h @@ -0,0 +1,28 @@ +/* + cbm.h (09.11.10) + Clusters Bitmap creation code. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef MKFS_CBM_H_INCLUDED +#define MKFS_CBM_H_INCLUDED + +#include "mkexfat.h" + +extern const struct fs_object cbm; + +#endif /* ifndef MKFS_CBM_H_INCLUDED */ diff --git a/exfat/mkfs/fat.c b/exfat/mkfs/fat.c new file mode 100644 index 000000000..82feff8ba --- /dev/null +++ b/exfat/mkfs/fat.c @@ -0,0 +1,86 @@ +/* + fat.c (09.11.10) + File Allocation Table creation code. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#include <unistd.h> +#include "fat.h" +#include "cbm.h" +#include "uct.h" +#include "rootdir.h" + +static off64_t fat_alignment(void) +{ + return (off64_t) 128 * get_sector_size(); +} + +static off64_t fat_size(void) +{ + return get_volume_size() / get_cluster_size() * sizeof(cluster_t); +} + +static cluster_t fat_write_entry(struct exfat_dev* dev, cluster_t cluster, + cluster_t value) +{ + le32_t fat_entry = cpu_to_le32(value); + if (exfat_write(dev, &fat_entry, sizeof(fat_entry)) < 0) + { + exfat_error("failed to write FAT entry 0x%x", value); + return 0; + } + return cluster + 1; +} + +static cluster_t fat_write_entries(struct exfat_dev* dev, cluster_t cluster, + uint64_t length) +{ + cluster_t end = cluster + DIV_ROUND_UP(length, get_cluster_size()); + + while (cluster < end - 1) + { + cluster = fat_write_entry(dev, cluster, cluster + 1); + if (cluster == 0) + return 0; + } + return fat_write_entry(dev, cluster, EXFAT_CLUSTER_END); +} + +static int fat_write(struct exfat_dev* dev) +{ + cluster_t c = 0; + + if (!(c = fat_write_entry(dev, c, 0xfffffff8))) /* media type */ + return 1; + if (!(c = fat_write_entry(dev, c, 0xffffffff))) /* some weird constant */ + return 1; + if (!(c = fat_write_entries(dev, c, cbm.get_size()))) + return 1; + if (!(c = fat_write_entries(dev, c, uct.get_size()))) + return 1; + if (!(c = fat_write_entries(dev, c, rootdir.get_size()))) + return 1; + + return 0; +} + +const struct fs_object fat = +{ + .get_alignment = fat_alignment, + .get_size = fat_size, + .write = fat_write, +}; diff --git a/exfat/mkfs/fat.h b/exfat/mkfs/fat.h new file mode 100644 index 000000000..8d7b86c10 --- /dev/null +++ b/exfat/mkfs/fat.h @@ -0,0 +1,28 @@ +/* + fat.h (09.11.10) + File Allocation Table creation code. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef MKFS_FAT_H_INCLUDED +#define MKFS_FAT_H_INCLUDED + +#include "mkexfat.h" + +extern const struct fs_object fat; + +#endif /* ifndef MKFS_FAT_H_INCLUDED */ diff --git a/exfat/mkfs/main.c b/exfat/mkfs/main.c new file mode 100644 index 000000000..9feb750ee --- /dev/null +++ b/exfat/mkfs/main.c @@ -0,0 +1,269 @@ +/* + main.c (15.08.10) + Creates exFAT file system. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#include <sys/types.h> +#include <sys/time.h> +#include <unistd.h> +#include <inttypes.h> +#include <stdio.h> +#include <string.h> +#include <limits.h> +#include <exfat.h> +#include "mkexfat.h" +#include "vbr.h" +#include "fat.h" +#include "cbm.h" +#include "uct.h" +#include "rootdir.h" + +const struct fs_object* objects[] = +{ + &vbr, + &vbr, + &fat, + /* clusters heap */ + &cbm, + &uct, + &rootdir, + NULL, +}; + +static struct +{ + int sector_bits; + int spc_bits; + off64_t volume_size; + le16_t volume_label[EXFAT_ENAME_MAX + 1]; + uint32_t volume_serial; + uint64_t first_sector; +} +param; + +int get_sector_bits(void) +{ + return param.sector_bits; +} + +int get_spc_bits(void) +{ + return param.spc_bits; +} + +off64_t get_volume_size(void) +{ + return param.volume_size; +} + +const le16_t* get_volume_label(void) +{ + return param.volume_label; +} + +uint32_t get_volume_serial(void) +{ + return param.volume_serial; +} + +uint64_t get_first_sector(void) +{ + return param.first_sector; +} + +int get_sector_size(void) +{ + return 1 << get_sector_bits(); +} + +int get_cluster_size(void) +{ + return get_sector_size() << get_spc_bits(); +} + +static int setup_spc_bits(int sector_bits, int user_defined, off64_t volume_size) +{ + int i; + + if (user_defined != -1) + { + off64_t cluster_size = 1 << sector_bits << user_defined; + if (volume_size / cluster_size > EXFAT_LAST_DATA_CLUSTER) + { + struct exfat_human_bytes chb, vhb; + + exfat_humanize_bytes(cluster_size, &chb); + exfat_humanize_bytes(volume_size, &vhb); + exfat_error("cluster size %"PRIu64" %s is too small for " + "%"PRIu64" %s volume, try -s %d", + chb.value, chb.unit, + vhb.value, vhb.unit, + 1 << setup_spc_bits(sector_bits, -1, volume_size)); + return -1; + } + return user_defined; + } + + if (volume_size < 256ull * 1024 * 1024) + return MAX(0, 12 - sector_bits); /* 4 KB */ + if (volume_size < 32ull * 1024 * 1024 * 1024) + return MAX(0, 15 - sector_bits); /* 32 KB */ + + for (i = 17; ; i++) /* 128 KB or more */ + if (DIV_ROUND_UP(volume_size, 1 << i) <= EXFAT_LAST_DATA_CLUSTER) + return MAX(0, i - sector_bits); +} + +static int setup_volume_label(le16_t label[EXFAT_ENAME_MAX + 1], const char* s) +{ + memset(label, 0, (EXFAT_ENAME_MAX + 1) * sizeof(le16_t)); + if (s == NULL) + return 0; + return utf8_to_utf16(label, s, EXFAT_ENAME_MAX, strlen(s)); +} + +static uint32_t setup_volume_serial(uint32_t user_defined) +{ + struct timeval now; + + if (user_defined != 0) + return user_defined; + + if (gettimeofday(&now, NULL) != 0) + { + exfat_error("failed to form volume id"); + return 0; + } + return (now.tv_sec << 20) | now.tv_usec; +} + +static int setup(struct exfat_dev* dev, int sector_bits, int spc_bits, + const char* volume_label, uint32_t volume_serial, + uint64_t first_sector) +{ + param.sector_bits = sector_bits; + param.first_sector = first_sector; + param.volume_size = exfat_get_size(dev); + + param.spc_bits = setup_spc_bits(sector_bits, spc_bits, param.volume_size); + if (param.spc_bits == -1) + return 1; + + if (setup_volume_label(param.volume_label, volume_label) != 0) + return 1; + + param.volume_serial = setup_volume_serial(volume_serial); + if (param.volume_serial == 0) + return 1; + + return mkfs(dev, param.volume_size); +} + +static int logarithm2(int n) +{ + int i; + + for (i = 0; i < sizeof(int) * CHAR_BIT - 1; i++) + if ((1 << i) == n) + return i; + return -1; +} + +static void usage(const char* prog) +{ + fprintf(stderr, "Usage: %s [-i volume-id] [-n label] " + "[-p partition-first-sector] " + "[-s sectors-per-cluster] [-v] <device>\n", prog); + exit(1); +} + +int main(int argc, char* argv[]) +{ + const char* spec = NULL; + char** pp; + int spc_bits = -1; + const char* volume_label = NULL; + uint32_t volume_serial = 0; + uint64_t first_sector = 0; + struct exfat_dev* dev; + + printf("mkexfatfs %u.%u.%u\n", + EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH); + + for (pp = argv + 1; *pp; pp++) + { + if (strcmp(*pp, "-s") == 0) + { + pp++; + if (*pp == NULL) + usage(argv[0]); + spc_bits = logarithm2(atoi(*pp)); + if (spc_bits < 0) + { + exfat_error("invalid option value: `%s'", *pp); + return 1; + } + } + else if (strcmp(*pp, "-n") == 0) + { + pp++; + if (*pp == NULL) + usage(argv[0]); + volume_label = *pp; + } + else if (strcmp(*pp, "-i") == 0) + { + pp++; + if (*pp == NULL) + usage(argv[0]); + volume_serial = strtol(*pp, NULL, 16); + } + else if (strcmp(*pp, "-p") == 0) + { + pp++; + if (*pp == NULL) + usage(argv[0]); + first_sector = strtoll(*pp, NULL, 10); + } + else if (strcmp(*pp, "-v") == 0) + { + puts("Copyright (C) 2011, 2012 Andrew Nayenko"); + return 0; + } + else if (spec == NULL) + spec = *pp; + else + usage(argv[0]); + } + if (spec == NULL) + usage(argv[0]); + + dev = exfat_open(spec, EXFAT_MODE_RW); + if (dev == NULL) + return 1; + if (setup(dev, 9, spc_bits, volume_label, volume_serial, + first_sector) != 0) + { + exfat_close(dev); + return 1; + } + if (exfat_close(dev) != 0) + return 1; + printf("File system created successfully.\n"); + return 0; +} diff --git a/exfat/mkfs/mkexfat.c b/exfat/mkfs/mkexfat.c new file mode 100644 index 000000000..7018aaae2 --- /dev/null +++ b/exfat/mkfs/mkexfat.c @@ -0,0 +1,160 @@ +/* + mkexfat.c (22.04.12) + FS creation engine. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#include <sys/types.h> +#include <unistd.h> +#include <inttypes.h> +#include <stdio.h> +#include <string.h> +#include "mkexfat.h" + +static int check_size(off64_t volume_size) +{ + const struct fs_object** pp; + off64_t position = 0; + + for (pp = objects; *pp; pp++) + { + position = ROUND_UP(position, (*pp)->get_alignment()); + position += (*pp)->get_size(); + } + + if (position > volume_size) + { + struct exfat_human_bytes vhb; + + exfat_humanize_bytes(volume_size, &vhb); + exfat_error("too small device (%"PRIu64" %s)", vhb.value, vhb.unit); + return 1; + } + + return 0; + +} + +static int erase_object(struct exfat_dev* dev, const void* block, + size_t block_size, off64_t start, off64_t size) +{ + const off64_t block_count = DIV_ROUND_UP(size, block_size); + off64_t i; + + if (exfat_seek(dev, start, SEEK_SET) == (off64_t) -1) + { + exfat_error("seek to 0x%"PRIx64" failed", start); + return 1; + } + for (i = 0; i < size; i += block_size) + { + if (exfat_write(dev, block, MIN(size - i, block_size)) < 0) + { + exfat_error("failed to erase block %"PRIu64"/%"PRIu64 + " at 0x%"PRIx64, i + 1, block_count, start); + return 1; + } + } + return 0; +} + +static int erase(struct exfat_dev* dev) +{ + const struct fs_object** pp; + off64_t position = 0; + const size_t block_size = 1024 * 1024; + void* block = malloc(block_size); + + if (block == NULL) + { + exfat_error("failed to allocate erase block of %zu bytes", block_size); + return 1; + } + memset(block, 0, block_size); + + for (pp = objects; *pp; pp++) + { + position = ROUND_UP(position, (*pp)->get_alignment()); + if (erase_object(dev, block, block_size, position, + (*pp)->get_size()) != 0) + { + free(block); + return 1; + } + position += (*pp)->get_size(); + } + + free(block); + return 0; +} + +static int create(struct exfat_dev* dev) +{ + const struct fs_object** pp; + off64_t position = 0; + + for (pp = objects; *pp; pp++) + { + position = ROUND_UP(position, (*pp)->get_alignment()); + if (exfat_seek(dev, position, SEEK_SET) == (off64_t) -1) + { + exfat_error("seek to 0x%"PRIx64" failed", position); + return 1; + } + if ((*pp)->write(dev) != 0) + return 1; + position += (*pp)->get_size(); + } + return 0; +} + +int mkfs(struct exfat_dev* dev, off64_t volume_size) +{ + if (check_size(volume_size) != 0) + return 1; + + fputs("Creating... ", stdout); + fflush(stdout); + if (erase(dev) != 0) + return 1; + if (create(dev) != 0) + return 1; + puts("done."); + + fputs("Flushing... ", stdout); + fflush(stdout); + if (exfat_fsync(dev) != 0) + return 1; + puts("done."); + + return 0; +} + +off64_t get_position(const struct fs_object* object) +{ + const struct fs_object** pp; + off64_t position = 0; + + for (pp = objects; *pp; pp++) + { + position = ROUND_UP(position, (*pp)->get_alignment()); + if (*pp == object) + return position; + position += (*pp)->get_size(); + } + exfat_bug("unknown object"); +} diff --git a/exfat/mkfs/mkexfat.h b/exfat/mkfs/mkexfat.h new file mode 100644 index 000000000..4634d0d95 --- /dev/null +++ b/exfat/mkfs/mkexfat.h @@ -0,0 +1,47 @@ +/* + mkexfat.h (09.11.10) + FS creation engine. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef MKFS_MKEXFAT_H_INCLUDED +#define MKFS_MKEXFAT_H_INCLUDED + +#include <exfat.h> + +struct fs_object +{ + off64_t (*get_alignment)(void); + off64_t (*get_size)(void); + int (*write)(struct exfat_dev* dev); +}; + +extern const struct fs_object* objects[]; + +int get_sector_bits(void); +int get_spc_bits(void); +off64_t get_volume_size(void); +const le16_t* get_volume_label(void); +uint32_t get_volume_serial(void); +uint64_t get_first_sector(void); +int get_sector_size(void); +int get_cluster_size(void); + +int mkfs(struct exfat_dev* dev, off64_t volume_size); +off64_t get_position(const struct fs_object* object); + +#endif /* ifndef MKFS_MKEXFAT_H_INCLUDED */ diff --git a/exfat/mkfs/mkexfatfs.8 b/exfat/mkfs/mkexfatfs.8 new file mode 100644 index 000000000..7d3ffecc1 --- /dev/null +++ b/exfat/mkfs/mkexfatfs.8 @@ -0,0 +1,68 @@ +.\" Copyright (C) 2011 Andrew Nayenko +.\" +.TH MKEXFATFS 8 "January 2011" +.SH NAME +.B mkexfatfs +\- create an exFAT file system +.SH SYNOPSIS +.B mkexfatfs +[ +.B \-i +.I volume-id +] +[ +.B \-n +.I volume-name +] +[ +.B \-p +.I partition-first-sector +] +[ +.B \-s +.I sectors-per-cluster +] +[ +.B \-v +] +.I device + +.SH DESCRIPTION +.B mkexfatfs +creates an exFAT file system on a block device. +.I device +is a special file corresponding to the device. + +.SH OPTIONS +Command line options available: +.TP +.BI \-i " volume-id" +A 32-bit hexadecimal number. By default a value based on current time is set. +.TP +.BI \-n " volume-name" +Volume name (label), up to 15 characters. By default no label is set. +.TP +.BI \-p " partition-first-sector" +First sector of the partition starting from the beginning of the whole disk. +exFAT super block has a field for this value but in fact it's optional and +does not affect anything. Default is 0. +.TP +.BI \-s " sectors-per-cluster" +Number of physical sectors per cluster (cluster is an allocation unit in +exFAT). Must be a power of 2, i.e. 1, 2, 4, 8, etc. Cluster size can not +exceed 32 MB. Default cluster sizes are: +4 KB if volume size is less than 256 MB, +32 KB if volume size is from 256 MB to 32 GB, +128 KB if volume size is 32 GB or larger. +.TP +.BI \-v +Print version and copyright. + +.SH EXIT CODES +Zero is returned on successful creation. Any other code means an error. + +.SH AUTHOR +Andrew Nayenko + +.SH SEE ALSO +.BR mkfs (8) diff --git a/exfat/mkfs/rootdir.c b/exfat/mkfs/rootdir.c new file mode 100644 index 000000000..ddc476f4c --- /dev/null +++ b/exfat/mkfs/rootdir.c @@ -0,0 +1,100 @@ +/* + rootdir.c (09.11.10) + Root directory creation code. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#include <string.h> +#include "rootdir.h" +#include "uct.h" +#include "cbm.h" +#include "uctc.h" + +static off64_t rootdir_alignment(void) +{ + return get_cluster_size(); +} + +static off64_t rootdir_size(void) +{ + return get_cluster_size(); +} + +static void init_label_entry(struct exfat_entry_label* label_entry) +{ + memset(label_entry, 0, sizeof(struct exfat_entry_label)); + label_entry->type = EXFAT_ENTRY_LABEL ^ EXFAT_ENTRY_VALID; + + if (utf16_length(get_volume_label()) == 0) + return; + + memcpy(label_entry->name, get_volume_label(), + EXFAT_ENAME_MAX * sizeof(le16_t)); + label_entry->length = utf16_length(get_volume_label()); + label_entry->type |= EXFAT_ENTRY_VALID; +} + +static void init_bitmap_entry(struct exfat_entry_bitmap* bitmap_entry) +{ + memset(bitmap_entry, 0, sizeof(struct exfat_entry_bitmap)); + bitmap_entry->type = EXFAT_ENTRY_BITMAP; + bitmap_entry->start_cluster = cpu_to_le32(EXFAT_FIRST_DATA_CLUSTER); + bitmap_entry->size = cpu_to_le64(cbm.get_size()); +} + +static void init_upcase_entry(struct exfat_entry_upcase* upcase_entry) +{ + size_t i; + uint32_t sum = 0; + + for (i = 0; i < sizeof(upcase_table); i++) + sum = ((sum << 31) | (sum >> 1)) + upcase_table[i]; + + memset(upcase_entry, 0, sizeof(struct exfat_entry_upcase)); + upcase_entry->type = EXFAT_ENTRY_UPCASE; + upcase_entry->checksum = cpu_to_le32(sum); + upcase_entry->start_cluster = cpu_to_le32( + (get_position(&uct) - get_position(&cbm)) / get_cluster_size() + + EXFAT_FIRST_DATA_CLUSTER); + upcase_entry->size = cpu_to_le64(sizeof(upcase_table)); +} + +static int rootdir_write(struct exfat_dev* dev) +{ + struct exfat_entry_label label_entry; + struct exfat_entry_bitmap bitmap_entry; + struct exfat_entry_upcase upcase_entry; + + init_label_entry(&label_entry); + init_bitmap_entry(&bitmap_entry); + init_upcase_entry(&upcase_entry); + + if (exfat_write(dev, &label_entry, sizeof(struct exfat_entry)) < 0) + return 1; + if (exfat_write(dev, &bitmap_entry, sizeof(struct exfat_entry)) < 0) + return 1; + if (exfat_write(dev, &upcase_entry, sizeof(struct exfat_entry)) < 0) + return 1; + return 0; +} + +const struct fs_object rootdir = +{ + .get_alignment = rootdir_alignment, + .get_size = rootdir_size, + .write = rootdir_write, +}; diff --git a/exfat/mkfs/rootdir.h b/exfat/mkfs/rootdir.h new file mode 100644 index 000000000..64e533243 --- /dev/null +++ b/exfat/mkfs/rootdir.h @@ -0,0 +1,28 @@ +/* + rootdir.h (09.11.10) + Root directory creation code. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef MKFS_ROOTDIR_H_INCLUDED +#define MKFS_ROOTDIR_H_INCLUDED + +#include "mkexfat.h" + +extern const struct fs_object rootdir; + +#endif /* ifndef MKFS_ROOTDIR_H_INCLUDED */ diff --git a/exfat/mkfs/uct.c b/exfat/mkfs/uct.c new file mode 100644 index 000000000..e6fd2c02e --- /dev/null +++ b/exfat/mkfs/uct.c @@ -0,0 +1,50 @@ +/* + uct.c (09.11.10) + Upper Case Table creation code. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#include "uct.h" +#include "uctc.h" + +static off64_t uct_alignment(void) +{ + return get_cluster_size(); +} + +static off64_t uct_size(void) +{ + return sizeof(upcase_table); +} + +static int uct_write(struct exfat_dev* dev) +{ + if (exfat_write(dev, upcase_table, sizeof(upcase_table)) < 0) + { + exfat_error("failed to write upcase table of %zu bytes", + sizeof(upcase_table)); + return 1; + } + return 0; +} + +const struct fs_object uct = +{ + .get_alignment = uct_alignment, + .get_size = uct_size, + .write = uct_write, +}; diff --git a/exfat/mkfs/uct.h b/exfat/mkfs/uct.h new file mode 100644 index 000000000..4b4f024cb --- /dev/null +++ b/exfat/mkfs/uct.h @@ -0,0 +1,28 @@ +/* + uct.h (09.11.10) + Upper Case Table creation code. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef MKFS_UCT_H_INCLUDED +#define MKFS_UCT_H_INCLUDED + +#include "mkexfat.h" + +extern const struct fs_object uct; + +#endif /* ifndef MKFS_UCT_H_INCLUDED */ diff --git a/exfat/mkfs/uctc.c b/exfat/mkfs/uctc.c new file mode 100644 index 000000000..573981168 --- /dev/null +++ b/exfat/mkfs/uctc.c @@ -0,0 +1,755 @@ +/* + uctc.c (30.04.12) + Upper Case Table contents. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#include "uctc.h" + +uint8_t upcase_table[5836] = +{ + 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, + 0x04, 0x00, 0x05, 0x00, 0x06, 0x00, 0x07, 0x00, + 0x08, 0x00, 0x09, 0x00, 0x0a, 0x00, 0x0b, 0x00, + 0x0c, 0x00, 0x0d, 0x00, 0x0e, 0x00, 0x0f, 0x00, + 0x10, 0x00, 0x11, 0x00, 0x12, 0x00, 0x13, 0x00, + 0x14, 0x00, 0x15, 0x00, 0x16, 0x00, 0x17, 0x00, + 0x18, 0x00, 0x19, 0x00, 0x1a, 0x00, 0x1b, 0x00, + 0x1c, 0x00, 0x1d, 0x00, 0x1e, 0x00, 0x1f, 0x00, + 0x20, 0x00, 0x21, 0x00, 0x22, 0x00, 0x23, 0x00, + 0x24, 0x00, 0x25, 0x00, 0x26, 0x00, 0x27, 0x00, + 0x28, 0x00, 0x29, 0x00, 0x2a, 0x00, 0x2b, 0x00, + 0x2c, 0x00, 0x2d, 0x00, 0x2e, 0x00, 0x2f, 0x00, + 0x30, 0x00, 0x31, 0x00, 0x32, 0x00, 0x33, 0x00, + 0x34, 0x00, 0x35, 0x00, 0x36, 0x00, 0x37, 0x00, + 0x38, 0x00, 0x39, 0x00, 0x3a, 0x00, 0x3b, 0x00, + 0x3c, 0x00, 0x3d, 0x00, 0x3e, 0x00, 0x3f, 0x00, + 0x40, 0x00, 0x41, 0x00, 0x42, 0x00, 0x43, 0x00, + 0x44, 0x00, 0x45, 0x00, 0x46, 0x00, 0x47, 0x00, + 0x48, 0x00, 0x49, 0x00, 0x4a, 0x00, 0x4b, 0x00, + 0x4c, 0x00, 0x4d, 0x00, 0x4e, 0x00, 0x4f, 0x00, + 0x50, 0x00, 0x51, 0x00, 0x52, 0x00, 0x53, 0x00, + 0x54, 0x00, 0x55, 0x00, 0x56, 0x00, 0x57, 0x00, + 0x58, 0x00, 0x59, 0x00, 0x5a, 0x00, 0x5b, 0x00, + 0x5c, 0x00, 0x5d, 0x00, 0x5e, 0x00, 0x5f, 0x00, + 0x60, 0x00, 0x41, 0x00, 0x42, 0x00, 0x43, 0x00, + 0x44, 0x00, 0x45, 0x00, 0x46, 0x00, 0x47, 0x00, + 0x48, 0x00, 0x49, 0x00, 0x4a, 0x00, 0x4b, 0x00, + 0x4c, 0x00, 0x4d, 0x00, 0x4e, 0x00, 0x4f, 0x00, + 0x50, 0x00, 0x51, 0x00, 0x52, 0x00, 0x53, 0x00, + 0x54, 0x00, 0x55, 0x00, 0x56, 0x00, 0x57, 0x00, + 0x58, 0x00, 0x59, 0x00, 0x5a, 0x00, 0x7b, 0x00, + 0x7c, 0x00, 0x7d, 0x00, 0x7e, 0x00, 0x7f, 0x00, + 0x80, 0x00, 0x81, 0x00, 0x82, 0x00, 0x83, 0x00, + 0x84, 0x00, 0x85, 0x00, 0x86, 0x00, 0x87, 0x00, + 0x88, 0x00, 0x89, 0x00, 0x8a, 0x00, 0x8b, 0x00, + 0x8c, 0x00, 0x8d, 0x00, 0x8e, 0x00, 0x8f, 0x00, + 0x90, 0x00, 0x91, 0x00, 0x92, 0x00, 0x93, 0x00, + 0x94, 0x00, 0x95, 0x00, 0x96, 0x00, 0x97, 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0xff, + 0x82, 0xff, 0x83, 0xff, 0x84, 0xff, 0x85, 0xff, + 0x86, 0xff, 0x87, 0xff, 0x88, 0xff, 0x89, 0xff, + 0x8a, 0xff, 0x8b, 0xff, 0x8c, 0xff, 0x8d, 0xff, + 0x8e, 0xff, 0x8f, 0xff, 0x90, 0xff, 0x91, 0xff, + 0x92, 0xff, 0x93, 0xff, 0x94, 0xff, 0x95, 0xff, + 0x96, 0xff, 0x97, 0xff, 0x98, 0xff, 0x99, 0xff, + 0x9a, 0xff, 0x9b, 0xff, 0x9c, 0xff, 0x9d, 0xff, + 0x9e, 0xff, 0x9f, 0xff, 0xa0, 0xff, 0xa1, 0xff, + 0xa2, 0xff, 0xa3, 0xff, 0xa4, 0xff, 0xa5, 0xff, + 0xa6, 0xff, 0xa7, 0xff, 0xa8, 0xff, 0xa9, 0xff, + 0xaa, 0xff, 0xab, 0xff, 0xac, 0xff, 0xad, 0xff, + 0xae, 0xff, 0xaf, 0xff, 0xb0, 0xff, 0xb1, 0xff, + 0xb2, 0xff, 0xb3, 0xff, 0xb4, 0xff, 0xb5, 0xff, + 0xb6, 0xff, 0xb7, 0xff, 0xb8, 0xff, 0xb9, 0xff, + 0xba, 0xff, 0xbb, 0xff, 0xbc, 0xff, 0xbd, 0xff, + 0xbe, 0xff, 0xbf, 0xff, 0xc0, 0xff, 0xc1, 0xff, + 0xc2, 0xff, 0xc3, 0xff, 0xc4, 0xff, 0xc5, 0xff, + 0xc6, 0xff, 0xc7, 0xff, 0xc8, 0xff, 0xc9, 0xff, + 0xca, 0xff, 0xcb, 0xff, 0xcc, 0xff, 0xcd, 0xff, + 0xce, 0xff, 0xcf, 0xff, 0xd0, 0xff, 0xd1, 0xff, + 0xd2, 0xff, 0xd3, 0xff, 0xd4, 0xff, 0xd5, 0xff, + 0xd6, 0xff, 0xd7, 0xff, 0xd8, 0xff, 0xd9, 0xff, + 0xda, 0xff, 0xdb, 0xff, 0xdc, 0xff, 0xdd, 0xff, + 0xde, 0xff, 0xdf, 0xff, 0xe0, 0xff, 0xe1, 0xff, + 0xe2, 0xff, 0xe3, 0xff, 0xe4, 0xff, 0xe5, 0xff, + 0xe6, 0xff, 0xe7, 0xff, 0xe8, 0xff, 0xe9, 0xff, + 0xea, 0xff, 0xeb, 0xff, 0xec, 0xff, 0xed, 0xff, + 0xee, 0xff, 0xef, 0xff, 0xf0, 0xff, 0xf1, 0xff, + 0xf2, 0xff, 0xf3, 0xff, 0xf4, 0xff, 0xf5, 0xff, + 0xf6, 0xff, 0xf7, 0xff, 0xf8, 0xff, 0xf9, 0xff, + 0xfa, 0xff, 0xfb, 0xff, 0xfc, 0xff, 0xfd, 0xff, + 0xfe, 0xff, 0xff, 0xff +}; diff --git a/exfat/mkfs/uctc.h b/exfat/mkfs/uctc.h new file mode 100644 index 000000000..67d2bba6b --- /dev/null +++ b/exfat/mkfs/uctc.h @@ -0,0 +1,28 @@ +/* + uctc.h (30.10.10) + Upper Case Table declaration. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef MKFS_UCTC_H_INCLUDED +#define MKFS_UCTC_H_INCLUDED + +#include <stdint.h> + +extern uint8_t upcase_table[5836]; + +#endif /* ifndef MKFS_UCTC_H_INCLUDED */ diff --git a/exfat/mkfs/vbr.c b/exfat/mkfs/vbr.c new file mode 100644 index 000000000..80e7a61e6 --- /dev/null +++ b/exfat/mkfs/vbr.c @@ -0,0 +1,146 @@ +/* + vbr.c (09.11.10) + Volume Boot Record creation code. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#include <string.h> +#include "vbr.h" +#include "fat.h" +#include "cbm.h" +#include "uct.h" +#include "rootdir.h" + +static off64_t vbr_alignment(void) +{ + return get_sector_size(); +} + +static off64_t vbr_size(void) +{ + return 12 * get_sector_size(); +} + +static void init_sb(struct exfat_super_block* sb) +{ + uint32_t clusters_max; + uint32_t fat_sectors; + + clusters_max = get_volume_size() / get_cluster_size(); + fat_sectors = DIV_ROUND_UP((off64_t) clusters_max * sizeof(cluster_t), + get_sector_size()); + + memset(sb, 0, sizeof(struct exfat_super_block)); + sb->jump[0] = 0xeb; + sb->jump[1] = 0x76; + sb->jump[2] = 0x90; + memcpy(sb->oem_name, "EXFAT ", sizeof(sb->oem_name)); + sb->sector_start = cpu_to_le64(get_first_sector()); + sb->sector_count = cpu_to_le64(get_volume_size() / get_sector_size()); + sb->fat_sector_start = cpu_to_le32( + fat.get_alignment() / get_sector_size()); + sb->fat_sector_count = cpu_to_le32(ROUND_UP( + le32_to_cpu(sb->fat_sector_start) + fat_sectors, + 1 << get_spc_bits()) - + le32_to_cpu(sb->fat_sector_start)); + sb->cluster_sector_start = cpu_to_le32( + get_position(&cbm) / get_sector_size()); + sb->cluster_count = cpu_to_le32(clusters_max - + ((le32_to_cpu(sb->fat_sector_start) + + le32_to_cpu(sb->fat_sector_count)) >> get_spc_bits())); + sb->rootdir_cluster = cpu_to_le32( + (get_position(&rootdir) - get_position(&cbm)) / get_cluster_size() + + EXFAT_FIRST_DATA_CLUSTER); + sb->volume_serial = cpu_to_le32(get_volume_serial()); + sb->version.major = 1; + sb->version.minor = 0; + sb->volume_state = cpu_to_le16(0); + sb->sector_bits = get_sector_bits(); + sb->spc_bits = get_spc_bits(); + sb->fat_count = 1; + sb->drive_no = 0x80; + sb->allocated_percent = 0; + sb->boot_signature = cpu_to_le16(0xaa55); +} + +static int vbr_write(struct exfat_dev* dev) +{ + struct exfat_super_block sb; + uint32_t checksum; + le32_t* sector = malloc(get_sector_size()); + size_t i; + + if (sector == NULL) + { + exfat_error("failed to allocate sector-sized block of memory"); + return 1; + } + + init_sb(&sb); + if (exfat_write(dev, &sb, sizeof(struct exfat_super_block)) < 0) + { + free(sector); + exfat_error("failed to write super block sector"); + return 1; + } + checksum = exfat_vbr_start_checksum(&sb, sizeof(struct exfat_super_block)); + + memset(sector, 0, get_sector_size()); + sector[get_sector_size() / sizeof(sector[0]) - 1] = + cpu_to_le32(0xaa550000); + for (i = 0; i < 8; i++) + { + if (exfat_write(dev, sector, get_sector_size()) < 0) + { + free(sector); + exfat_error("failed to write a sector with boot signature"); + return 1; + } + checksum = exfat_vbr_add_checksum(sector, get_sector_size(), checksum); + } + + memset(sector, 0, get_sector_size()); + for (i = 0; i < 2; i++) + { + if (exfat_write(dev, sector, get_sector_size()) < 0) + { + free(sector); + exfat_error("failed to write an empty sector"); + return 1; + } + checksum = exfat_vbr_add_checksum(sector, get_sector_size(), checksum); + } + + for (i = 0; i < get_sector_size() / sizeof(sector[0]); i++) + sector[i] = cpu_to_le32(checksum); + if (exfat_write(dev, sector, get_sector_size()) < 0) + { + free(sector); + exfat_error("failed to write checksum sector"); + return 1; + } + + free(sector); + return 0; +} + +const struct fs_object vbr = +{ + .get_alignment = vbr_alignment, + .get_size = vbr_size, + .write = vbr_write, +}; diff --git a/exfat/mkfs/vbr.h b/exfat/mkfs/vbr.h new file mode 100644 index 000000000..c3a6362e0 --- /dev/null +++ b/exfat/mkfs/vbr.h @@ -0,0 +1,28 @@ +/* + vbr.h (09.11.10) + Volume Boot Record creation code. + + Copyright (C) 2011, 2012 Andrew Nayenko + + 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, either version 3 of the License, or + (at your option) any later version. + + 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, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef MKFS_VBR_H_INCLUDED +#define MKFS_VBR_H_INCLUDED + +#include "mkexfat.h" + +extern const struct fs_object vbr; + +#endif /* ifndef MKFS_VBR_H_INCLUDED */ |