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-rw-r--r--mkfs/mkfs.c713
1 files changed, 713 insertions, 0 deletions
diff --git a/mkfs/mkfs.c b/mkfs/mkfs.c
new file mode 100644
index 0000000..f9e5bb4
--- /dev/null
+++ b/mkfs/mkfs.c
@@ -0,0 +1,713 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2019 Namjae Jeon <linkinjeon@kernel.org>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <errno.h>
+#include <locale.h>
+#include <time.h>
+
+#include "exfat_ondisk.h"
+#include "libexfat.h"
+#include "mkfs.h"
+
+struct exfat_mkfs_info finfo;
+
+/* random serial generator based on current time */
+static unsigned int get_new_serial(void)
+{
+ struct timespec ts;
+
+ if (clock_gettime(CLOCK_REALTIME, &ts)) {
+ /* set 0000-0000 on error */
+ ts.tv_sec = 0;
+ ts.tv_nsec = 0;
+ }
+
+ return (unsigned int)(ts.tv_nsec << 12 | ts.tv_sec);
+}
+
+static void exfat_setup_boot_sector(struct pbr *ppbr,
+ struct exfat_blk_dev *bd, struct exfat_user_input *ui)
+{
+ struct bpb64 *pbpb = &ppbr->bpb;
+ struct bsx64 *pbsx = &ppbr->bsx;
+ unsigned int i;
+
+ /* Fill exfat BIOS parameter block */
+ pbpb->jmp_boot[0] = 0xeb;
+ pbpb->jmp_boot[1] = 0x76;
+ pbpb->jmp_boot[2] = 0x90;
+ memcpy(pbpb->oem_name, "EXFAT ", 8);
+ memset(pbpb->res_zero, 0, 53);
+
+ /* Fill exfat extend BIOS parameter block */
+ pbsx->vol_offset = cpu_to_le64(bd->offset / bd->sector_size);
+ pbsx->vol_length = cpu_to_le64(bd->size / bd->sector_size);
+ pbsx->fat_offset = cpu_to_le32(finfo.fat_byte_off / bd->sector_size);
+ pbsx->fat_length = cpu_to_le32(finfo.fat_byte_len / bd->sector_size);
+ pbsx->clu_offset = cpu_to_le32(finfo.clu_byte_off / bd->sector_size);
+ pbsx->clu_count = cpu_to_le32(finfo.total_clu_cnt);
+ pbsx->root_cluster = cpu_to_le32(finfo.root_start_clu);
+ pbsx->vol_serial = cpu_to_le32(finfo.volume_serial);
+ pbsx->vol_flags = 0;
+ pbsx->sect_size_bits = bd->sector_size_bits;
+ pbsx->sect_per_clus_bits = 0;
+ /* Compute base 2 logarithm of ui->cluster_size / bd->sector_size */
+ for (i = ui->cluster_size / bd->sector_size; i > 1; i /= 2)
+ pbsx->sect_per_clus_bits++;
+ pbsx->num_fats = 1;
+ /* fs_version[0] : minor and fs_version[1] : major */
+ pbsx->fs_version[0] = 0;
+ pbsx->fs_version[1] = 1;
+ pbsx->phy_drv_no = 0x80;
+ memset(pbsx->reserved2, 0, 7);
+
+ memset(ppbr->boot_code, 0, 390);
+ ppbr->signature = cpu_to_le16(PBR_SIGNATURE);
+
+ exfat_debug("Volume Offset(sectors) : %" PRIu64 "\n",
+ le64_to_cpu(pbsx->vol_offset));
+ exfat_debug("Volume Length(sectors) : %" PRIu64 "\n",
+ le64_to_cpu(pbsx->vol_length));
+ exfat_debug("FAT Offset(sector offset) : %u\n",
+ le32_to_cpu(pbsx->fat_offset));
+ exfat_debug("FAT Length(sectors) : %u\n",
+ le32_to_cpu(pbsx->fat_length));
+ exfat_debug("Cluster Heap Offset (sector offset) : %u\n",
+ le32_to_cpu(pbsx->clu_offset));
+ exfat_debug("Cluster Count : %u\n",
+ le32_to_cpu(pbsx->clu_count));
+ exfat_debug("Root Cluster (cluster offset) : %u\n",
+ le32_to_cpu(pbsx->root_cluster));
+ exfat_debug("Volume Serial : 0x%x\n", le32_to_cpu(pbsx->vol_serial));
+ exfat_debug("Sector Size Bits : %u\n",
+ pbsx->sect_size_bits);
+ exfat_debug("Sector per Cluster bits : %u\n",
+ pbsx->sect_per_clus_bits);
+}
+
+static int exfat_write_boot_sector(struct exfat_blk_dev *bd,
+ struct exfat_user_input *ui, unsigned int *checksum,
+ bool is_backup)
+{
+ struct pbr *ppbr;
+ unsigned int sec_idx = BOOT_SEC_IDX;
+ int ret = 0;
+
+ if (is_backup)
+ sec_idx += BACKUP_BOOT_SEC_IDX;
+
+ ppbr = malloc(bd->sector_size);
+ if (!ppbr) {
+ exfat_err("Cannot allocate pbr: out of memory\n");
+ return -1;
+ }
+ memset(ppbr, 0, bd->sector_size);
+
+ exfat_setup_boot_sector(ppbr, bd, ui);
+
+ /* write main boot sector */
+ ret = exfat_write_sector(bd, ppbr, sec_idx);
+ if (ret < 0) {
+ exfat_err("main boot sector write failed\n");
+ ret = -1;
+ goto free_ppbr;
+ }
+
+ boot_calc_checksum((unsigned char *)ppbr, bd->sector_size,
+ true, checksum);
+
+free_ppbr:
+ free(ppbr);
+ return ret;
+}
+
+static int exfat_write_extended_boot_sectors(struct exfat_blk_dev *bd,
+ unsigned int *checksum, bool is_backup)
+{
+ char *peb;
+ __le16 *peb_signature;
+ int ret = 0;
+ int i;
+ unsigned int sec_idx = EXBOOT_SEC_IDX;
+
+ peb = malloc(bd->sector_size);
+ if (!peb)
+ return -1;
+
+ if (is_backup)
+ sec_idx += BACKUP_BOOT_SEC_IDX;
+
+ memset(peb, 0, bd->sector_size);
+ peb_signature = (__le16*) (peb + bd->sector_size - 2);
+ *peb_signature = cpu_to_le16(PBR_SIGNATURE);
+ for (i = 0; i < EXBOOT_SEC_NUM; i++) {
+ if (exfat_write_sector(bd, peb, sec_idx++)) {
+ exfat_err("extended boot sector write failed\n");
+ ret = -1;
+ goto free_peb;
+ }
+
+ boot_calc_checksum((unsigned char *) peb, bd->sector_size,
+ false, checksum);
+ }
+
+free_peb:
+ free(peb);
+ return ret;
+}
+
+static int exfat_write_oem_sector(struct exfat_blk_dev *bd,
+ unsigned int *checksum, bool is_backup)
+{
+ char *oem;
+ int ret = 0;
+ unsigned int sec_idx = OEM_SEC_IDX;
+
+ oem = malloc(bd->sector_size);
+ if (!oem)
+ return -1;
+
+ if (is_backup)
+ sec_idx += BACKUP_BOOT_SEC_IDX;
+
+ memset(oem, 0xFF, bd->sector_size);
+ ret = exfat_write_sector(bd, oem, sec_idx);
+ if (ret) {
+ exfat_err("oem sector write failed\n");
+ ret = -1;
+ goto free_oem;
+ }
+
+ boot_calc_checksum((unsigned char *)oem, bd->sector_size, false,
+ checksum);
+
+ /* Zero out reserved sector */
+ memset(oem, 0, bd->sector_size);
+ ret = exfat_write_sector(bd, oem, sec_idx + 1);
+ if (ret) {
+ exfat_err("reserved sector write failed\n");
+ ret = -1;
+ goto free_oem;
+ }
+
+ boot_calc_checksum((unsigned char *)oem, bd->sector_size, false,
+ checksum);
+
+free_oem:
+ free(oem);
+ return ret;
+}
+
+static int exfat_create_volume_boot_record(struct exfat_blk_dev *bd,
+ struct exfat_user_input *ui, bool is_backup)
+{
+ unsigned int checksum = 0;
+ int ret;
+
+ ret = exfat_write_boot_sector(bd, ui, &checksum, is_backup);
+ if (ret)
+ return ret;
+ ret = exfat_write_extended_boot_sectors(bd, &checksum, is_backup);
+ if (ret)
+ return ret;
+ ret = exfat_write_oem_sector(bd, &checksum, is_backup);
+ if (ret)
+ return ret;
+
+ return exfat_write_checksum_sector(bd, checksum, is_backup);
+}
+
+static int write_fat_entry(int fd, __le32 clu,
+ unsigned long long offset)
+{
+ int nbyte;
+ off_t fat_entry_offset = finfo.fat_byte_off + (offset * sizeof(__le32));
+
+ nbyte = pwrite(fd, (__u8 *) &clu, sizeof(__le32), fat_entry_offset);
+ if (nbyte != sizeof(int)) {
+ exfat_err("write failed, offset : %llu, clu : %x\n",
+ offset, clu);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int write_fat_entries(struct exfat_user_input *ui, int fd,
+ unsigned int clu, unsigned int length)
+{
+ int ret;
+ unsigned int count;
+
+ count = clu + round_up(length, ui->cluster_size) / ui->cluster_size;
+
+ for (; clu < count - 1; clu++) {
+ ret = write_fat_entry(fd, cpu_to_le32(clu + 1), clu);
+ if (ret)
+ return ret;
+ }
+
+ ret = write_fat_entry(fd, cpu_to_le32(EXFAT_EOF_CLUSTER), clu);
+ if (ret)
+ return ret;
+
+ return clu;
+}
+
+static int exfat_create_fat_table(struct exfat_blk_dev *bd,
+ struct exfat_user_input *ui)
+{
+ int ret, clu;
+
+ /* fat entry 0 should be media type field(0xF8) */
+ ret = write_fat_entry(bd->dev_fd, cpu_to_le32(0xfffffff8), 0);
+ if (ret) {
+ exfat_err("fat 0 entry write failed\n");
+ return ret;
+ }
+
+ /* fat entry 1 is historical precedence(0xFFFFFFFF) */
+ ret = write_fat_entry(bd->dev_fd, cpu_to_le32(0xffffffff), 1);
+ if (ret) {
+ exfat_err("fat 1 entry write failed\n");
+ return ret;
+ }
+
+ /* write bitmap entries */
+ clu = write_fat_entries(ui, bd->dev_fd, EXFAT_FIRST_CLUSTER,
+ finfo.bitmap_byte_len);
+ if (clu < 0)
+ return ret;
+
+ /* write upcase table entries */
+ clu = write_fat_entries(ui, bd->dev_fd, clu + 1, finfo.ut_byte_len);
+ if (clu < 0)
+ return ret;
+
+ /* write root directory entries */
+ clu = write_fat_entries(ui, bd->dev_fd, clu + 1, finfo.root_byte_len);
+ if (clu < 0)
+ return ret;
+
+ finfo.used_clu_cnt = clu + 1;
+ exfat_debug("Total used cluster count : %d\n", finfo.used_clu_cnt);
+
+ return ret;
+}
+
+static int exfat_create_bitmap(struct exfat_blk_dev *bd)
+{
+ char *bitmap;
+ unsigned int i, nbytes;
+
+ bitmap = calloc(round_up(finfo.bitmap_byte_len, sizeof(bitmap_t)),
+ sizeof(*bitmap));
+ if (!bitmap)
+ return -1;
+
+ for (i = EXFAT_FIRST_CLUSTER; i < finfo.used_clu_cnt; i++)
+ exfat_bitmap_set(bitmap, i);
+
+ nbytes = pwrite(bd->dev_fd, bitmap, finfo.bitmap_byte_len, finfo.bitmap_byte_off);
+ if (nbytes != finfo.bitmap_byte_len) {
+ exfat_err("write failed, nbytes : %d, bitmap_len : %d\n",
+ nbytes, finfo.bitmap_byte_len);
+ free(bitmap);
+ return -1;
+ }
+
+ free(bitmap);
+ return 0;
+}
+
+static int exfat_create_root_dir(struct exfat_blk_dev *bd,
+ struct exfat_user_input *ui)
+{
+ struct exfat_dentry ed[3] = {0};
+ int dentries_len = sizeof(struct exfat_dentry) * 3;
+ int nbytes;
+
+ /* Set volume label entry */
+ ed[0].type = EXFAT_VOLUME;
+ memset(ed[0].vol_label, 0, 22);
+ memcpy(ed[0].vol_label, ui->volume_label, ui->volume_label_len);
+ ed[0].vol_char_cnt = ui->volume_label_len/2;
+
+ /* Set bitmap entry */
+ ed[1].type = EXFAT_BITMAP;
+ ed[1].bitmap_flags = 0;
+ ed[1].bitmap_start_clu = cpu_to_le32(EXFAT_FIRST_CLUSTER);
+ ed[1].bitmap_size = cpu_to_le64(finfo.bitmap_byte_len);
+
+ /* Set upcase table entry */
+ ed[2].type = EXFAT_UPCASE;
+ ed[2].upcase_checksum = cpu_to_le32(0xe619d30d);
+ ed[2].upcase_start_clu = cpu_to_le32(finfo.ut_start_clu);
+ ed[2].upcase_size = cpu_to_le64(EXFAT_UPCASE_TABLE_SIZE);
+
+ nbytes = pwrite(bd->dev_fd, ed, dentries_len, finfo.root_byte_off);
+ if (nbytes != dentries_len) {
+ exfat_err("write failed, nbytes : %d, dentries_len : %d\n",
+ nbytes, dentries_len);
+ return -1;
+ }
+
+ return 0;
+}
+
+static void usage(void)
+{
+ fputs("Usage: mkfs.exfat\n"
+ "\t-L | --volume-label=label Set volume label\n"
+ "\t-c | --cluster-size=size(or suffixed by 'K' or 'M') Specify cluster size\n"
+ "\t-b | --boundary-align=size(or suffixed by 'K' or 'M') Specify boundary alignment\n"
+ "\t --pack-bitmap Move bitmap into FAT segment\n"
+ "\t-f | --full-format Full format\n"
+ "\t-V | --version Show version\n"
+ "\t-v | --verbose Print debug\n"
+ "\t-h | --help Show help\n",
+ stderr);
+
+ exit(EXIT_FAILURE);
+}
+
+#define PACK_BITMAP (CHAR_MAX + 1)
+
+static const struct option opts[] = {
+ {"volume-label", required_argument, NULL, 'L' },
+ {"cluster-size", required_argument, NULL, 'c' },
+ {"boundary-align", required_argument, NULL, 'b' },
+ {"pack-bitmap", no_argument, NULL, PACK_BITMAP },
+ {"full-format", no_argument, NULL, 'f' },
+ {"version", no_argument, NULL, 'V' },
+ {"verbose", no_argument, NULL, 'v' },
+ {"help", no_argument, NULL, 'h' },
+ {"?", no_argument, NULL, '?' },
+ {NULL, 0, NULL, 0 }
+};
+
+/*
+ * Moves the bitmap to just before the alignment boundary if there is space
+ * between the boundary and the end of the FAT. This may allow the FAT and the
+ * bitmap to share the same allocation unit on flash media, thereby improving
+ * performance and endurance.
+ */
+static int exfat_pack_bitmap(const struct exfat_user_input *ui)
+{
+ unsigned int fat_byte_end = finfo.fat_byte_off + finfo.fat_byte_len,
+ bitmap_byte_len = finfo.bitmap_byte_len,
+ bitmap_clu_len = round_up(bitmap_byte_len, ui->cluster_size),
+ bitmap_clu_cnt, total_clu_cnt, new_bitmap_clu_len;
+
+ for (;;) {
+ bitmap_clu_cnt = bitmap_clu_len / ui->cluster_size;
+ if (finfo.clu_byte_off - bitmap_clu_len < fat_byte_end ||
+ finfo.total_clu_cnt > EXFAT_MAX_NUM_CLUSTER -
+ bitmap_clu_cnt)
+ return -1;
+ total_clu_cnt = finfo.total_clu_cnt + bitmap_clu_cnt;
+ bitmap_byte_len = round_up(total_clu_cnt, 8) / 8;
+ new_bitmap_clu_len = round_up(bitmap_byte_len, ui->cluster_size);
+ if (new_bitmap_clu_len == bitmap_clu_len) {
+ finfo.clu_byte_off -= bitmap_clu_len;
+ finfo.total_clu_cnt = total_clu_cnt;
+ finfo.bitmap_byte_off -= bitmap_clu_len;
+ finfo.bitmap_byte_len = bitmap_byte_len;
+ return 0;
+ }
+ bitmap_clu_len = new_bitmap_clu_len;
+ }
+}
+
+static int exfat_build_mkfs_info(struct exfat_blk_dev *bd,
+ struct exfat_user_input *ui)
+{
+ unsigned long long total_clu_cnt;
+ int clu_len;
+
+ if (ui->cluster_size < bd->sector_size) {
+ exfat_err("cluster size (%u bytes) is smaller than sector size (%u bytes)\n",
+ ui->cluster_size, bd->sector_size);
+ return -1;
+ }
+ if (ui->boundary_align < bd->sector_size) {
+ exfat_err("boundary alignment is too small (min %d)\n",
+ bd->sector_size);
+ return -1;
+ }
+ finfo.fat_byte_off = round_up(bd->offset + 24 * bd->sector_size,
+ ui->boundary_align) - bd->offset;
+ /* Prevent integer overflow when computing the FAT length */
+ if (bd->num_clusters > UINT32_MAX / 4) {
+ exfat_err("cluster size (%u bytes) is too small\n", ui->cluster_size);
+ return -1;
+ }
+ finfo.fat_byte_len = round_up((bd->num_clusters * 4), ui->cluster_size);
+ finfo.clu_byte_off = round_up(bd->offset + finfo.fat_byte_off +
+ finfo.fat_byte_len, ui->boundary_align) - bd->offset;
+ if (bd->size <= finfo.clu_byte_off) {
+ exfat_err("boundary alignment is too big\n");
+ return -1;
+ }
+ total_clu_cnt = (bd->size - finfo.clu_byte_off) / ui->cluster_size;
+ if (total_clu_cnt > EXFAT_MAX_NUM_CLUSTER) {
+ exfat_err("cluster size is too small\n");
+ return -1;
+ }
+ finfo.total_clu_cnt = (unsigned int) total_clu_cnt;
+
+ finfo.bitmap_byte_off = finfo.clu_byte_off;
+ finfo.bitmap_byte_len = round_up(finfo.total_clu_cnt, 8) / 8;
+ if (ui->pack_bitmap)
+ exfat_pack_bitmap(ui);
+ clu_len = round_up(finfo.bitmap_byte_len, ui->cluster_size);
+
+ finfo.ut_start_clu = EXFAT_FIRST_CLUSTER + clu_len / ui->cluster_size;
+ finfo.ut_byte_off = finfo.bitmap_byte_off + clu_len;
+ finfo.ut_byte_len = EXFAT_UPCASE_TABLE_SIZE;
+ clu_len = round_up(finfo.ut_byte_len, ui->cluster_size);
+
+ finfo.root_start_clu = finfo.ut_start_clu + clu_len / ui->cluster_size;
+ finfo.root_byte_off = finfo.ut_byte_off + clu_len;
+ finfo.root_byte_len = sizeof(struct exfat_dentry) * 3;
+ finfo.volume_serial = get_new_serial();
+
+ return 0;
+}
+
+static int exfat_zero_out_disk(struct exfat_blk_dev *bd,
+ struct exfat_user_input *ui)
+{
+ int nbytes;
+ unsigned long long total_written = 0;
+ char *buf;
+ unsigned int chunk_size = ui->cluster_size;
+ unsigned long long size;
+
+ if (ui->quick)
+ size = finfo.root_byte_off + chunk_size;
+ else
+ size = bd->size;
+
+ buf = malloc(chunk_size);
+ if (!buf)
+ return -1;
+
+ memset(buf, 0, chunk_size);
+ lseek(bd->dev_fd, 0, SEEK_SET);
+ do {
+
+ nbytes = write(bd->dev_fd, buf, chunk_size);
+ if (nbytes <= 0) {
+ if (nbytes < 0)
+ exfat_err("write failed(errno : %d)\n", errno);
+ break;
+ }
+ total_written += nbytes;
+ } while (total_written < size);
+
+ free(buf);
+ exfat_debug("zero out written size : %llu, disk size : %llu\n",
+ total_written, bd->size);
+ return 0;
+}
+
+static int make_exfat(struct exfat_blk_dev *bd, struct exfat_user_input *ui)
+{
+ int ret;
+
+ exfat_info("Creating exFAT filesystem(%s, cluster size=%u)\n\n",
+ ui->dev_name, ui->cluster_size);
+
+ exfat_info("Writing volume boot record: ");
+ ret = exfat_create_volume_boot_record(bd, ui, 0);
+ exfat_info("%s\n", ret ? "failed" : "done");
+ if (ret)
+ return ret;
+
+ exfat_info("Writing backup volume boot record: ");
+ /* backup sector */
+ ret = exfat_create_volume_boot_record(bd, ui, 1);
+ exfat_info("%s\n", ret ? "failed" : "done");
+ if (ret)
+ return ret;
+
+ exfat_info("Fat table creation: ");
+ ret = exfat_create_fat_table(bd, ui);
+ exfat_info("%s\n", ret ? "failed" : "done");
+ if (ret)
+ return ret;
+
+ exfat_info("Allocation bitmap creation: ");
+ ret = exfat_create_bitmap(bd);
+ exfat_info("%s\n", ret ? "failed" : "done");
+ if (ret)
+ return ret;
+
+ exfat_info("Upcase table creation: ");
+ ret = exfat_create_upcase_table(bd);
+ exfat_info("%s\n", ret ? "failed" : "done");
+ if (ret)
+ return ret;
+
+ exfat_info("Writing root directory entry: ");
+ ret = exfat_create_root_dir(bd, ui);
+ exfat_info("%s\n", ret ? "failed" : "done");
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static long long parse_size(const char *size)
+{
+ char *data_unit;
+ unsigned long long byte_size = strtoull(size, &data_unit, 0);
+
+ switch (*data_unit) {
+ case 'M':
+ case 'm':
+ byte_size <<= 20;
+ break;
+ case 'K':
+ case 'k':
+ byte_size <<= 10;
+ break;
+ case '\0':
+ break;
+ default:
+ exfat_err("Wrong unit input('%c') for size\n",
+ *data_unit);
+ return -EINVAL;
+ }
+
+ return byte_size;
+}
+
+int main(int argc, char *argv[])
+{
+ int c;
+ int ret = EXIT_FAILURE;
+ struct exfat_blk_dev bd;
+ struct exfat_user_input ui;
+ bool version_only = false;
+
+ init_user_input(&ui);
+
+ if (!setlocale(LC_CTYPE, ""))
+ exfat_err("failed to init locale/codeset\n");
+
+ opterr = 0;
+ while ((c = getopt_long(argc, argv, "n:L:c:b:fVvh", opts, NULL)) != EOF)
+ switch (c) {
+ /*
+ * Make 'n' option fallthrough to 'L' option for for backward
+ * compatibility with old utils.
+ */
+ case 'n':
+ case 'L':
+ {
+ ret = exfat_utf16_enc(optarg,
+ ui.volume_label, sizeof(ui.volume_label));
+ if (ret < 0)
+ goto out;
+
+ ui.volume_label_len = ret;
+ break;
+ }
+ case 'c':
+ ret = parse_size(optarg);
+ if (ret < 0)
+ goto out;
+ else if (ret & (ret - 1)) {
+ exfat_err("cluster size(%d) is not a power of 2)\n",
+ ret);
+ goto out;
+ } else if (ret > EXFAT_MAX_CLUSTER_SIZE) {
+ exfat_err("cluster size(%d) exceeds max cluster size(%d)\n",
+ ui.cluster_size, EXFAT_MAX_CLUSTER_SIZE);
+ goto out;
+ }
+ ui.cluster_size = ret;
+ break;
+ case 'b':
+ ret = parse_size(optarg);
+ if (ret < 0)
+ goto out;
+ else if (ret & (ret - 1)) {
+ exfat_err("boundary align(%d) is not a power of 2)\n",
+ ret);
+ goto out;
+ }
+ ui.boundary_align = ret;
+ break;
+ case PACK_BITMAP:
+ ui.pack_bitmap = true;
+ break;
+ case 'f':
+ ui.quick = false;
+ break;
+ case 'V':
+ version_only = true;
+ break;
+ case 'v':
+ print_level = EXFAT_DEBUG;
+ break;
+ case '?':
+ case 'h':
+ default:
+ usage();
+ }
+
+ show_version();
+ if (version_only)
+ exit(EXIT_FAILURE);
+
+ if (argc - optind != 1) {
+ usage();
+ }
+
+ memset(ui.dev_name, 0, sizeof(ui.dev_name));
+ snprintf(ui.dev_name, sizeof(ui.dev_name), "%s", argv[optind]);
+
+ ret = exfat_get_blk_dev_info(&ui, &bd);
+ if (ret < 0)
+ goto out;
+
+ ret = exfat_build_mkfs_info(&bd, &ui);
+ if (ret)
+ goto close;
+
+ ret = exfat_zero_out_disk(&bd, &ui);
+ if (ret)
+ goto close;
+
+ ret = make_exfat(&bd, &ui);
+ if (ret)
+ goto close;
+
+ exfat_info("Synchronizing...\n");
+ ret = fsync(bd.dev_fd);
+close:
+ close(bd.dev_fd);
+out:
+ if (!ret)
+ exfat_info("\nexFAT format complete!\n");
+ else
+ exfat_info("\nexFAT format fail!\n");
+ return ret;
+}