static int bsd_write_disklabel(struct fdisk_context *cxt)
{
off_t offset = 0;
struct fdisk_bsd_label *l = self_label(cxt);
struct bsd_disklabel *d = self_disklabel(cxt);
if (l->dos_part)
offset = dos_partition_get_start(l->dos_part) * cxt->sector_size;
d->d_checksum = 0;
d->d_checksum = bsd_dkcksum(d);
/* Update label within boot block. */
memmove(&l->bsdbuffer[BSD_LABELSECTOR * DEFAULT_SECTOR_SIZE
+ BSD_LABELOFFSET], d, sizeof(*d));
#if defined (__alpha__) && BSD_LABELSECTOR == 0
/* Write the checksum to the end of the first sector. */
alpha_bootblock_checksum(l->bsdbuffer);
#endif
if (lseek(cxt->dev_fd, offset, SEEK_SET) == -1) {
fdisk_warn(cxt, _("seek on %s failed"), cxt->dev_path);
return -errno;
}
if (write_all(cxt->dev_fd, l->bsdbuffer, sizeof(l->bsdbuffer))) {
fdisk_warn(cxt, _("cannot write %s"), cxt->dev_path);
return -errno;
}
sync_disks(cxt);
fdisk_sinfo(cxt, FDISK_INFO_SUCCESS,
_("Disklabel written to %s."), cxt->dev_path);
return 0;
}
static int
xbsd_writelabel(struct partition *p)
{
struct xbsd_disklabel *d = &xbsd_dlabel;
unsigned int sector;
#if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__)
sector = get_start_sect(p) + BSD_LABELSECTOR;
#else
(void)p; /* silence warning */
sector = BSD_LABELSECTOR;
#endif
d->d_checksum = 0;
d->d_checksum = xbsd_dkcksum(d);
/* This is necessary if we want to write the bootstrap later,
otherwise we'd write the old disklabel with the bootstrap.
*/
memmove(&disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
d, sizeof(struct xbsd_disklabel));
#if defined(__alpha__) && BSD_LABELSECTOR == 0
alpha_bootblock_checksum(disklabelbuffer);
seek_sector(0);
xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE);
#else
seek_sector(sector);
lseek(dev_fd, BSD_LABELOFFSET, SEEK_CUR);
xwrite(dev_fd, d, sizeof(*d));
#endif
sync_disks();
return 1;
}
int
do_sync (void)
{
if (sync_disks () == -1) {
reply_with_perror ("sync");
return -1;
}
return 0;
}
static int
xbsd_writelabel (struct partition *p, struct xbsd_disklabel *d)
{
int sector;
#if !defined (__alpha__) && !defined (__powerpc__)
sector = get_start_sect(p) + BSD_LABELSECTOR;
#elif defined (__alpha__) || defined (__powerpc__)
sector = BSD_LABELSECTOR;
#endif
d -> d_checksum = 0;
d -> d_checksum = xbsd_dkcksum (d);
/* This is necessary if we want to write the bootstrap later,
otherwise we'd write the old disklabel with the bootstrap.
*/
bcopy (d, &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET],
sizeof (struct xbsd_disklabel));
#if defined (__alpha__) && BSD_LABELSECTOR == 0
alpha_bootblock_checksum (disklabelbuffer);
if (ext2_llseek (fd, (ext2_loff_t) 0, SEEK_SET) == -1)
fatal (unable_to_seek);
if (BSD_BBSIZE != write (fd, disklabelbuffer, BSD_BBSIZE))
fatal (unable_to_write);
#else
if (ext2_llseek (fd, (ext2_loff_t) sector * SECTOR_SIZE + BSD_LABELOFFSET,
SEEK_SET) == -1)
fatal (unable_to_seek);
if (sizeof (struct xbsd_disklabel) != write (fd, d, sizeof (struct xbsd_disklabel)))
fatal (unable_to_write);
#endif
sync_disks ();
return 1;
}
int fdisk_bsd_write_bootstrap(struct fdisk_context *cxt)
{
struct bsd_disklabel dl, *d = self_disklabel(cxt);
struct fdisk_bsd_label *l = self_label(cxt);
char *name = d->d_type == BSD_DTYPE_SCSI ? "sd" : "wd";
char buf[BUFSIZ];
char *res, *dp, *p;
int rc;
sector_t sector;
snprintf(buf, sizeof(buf),
_("Bootstrap: %1$sboot -> boot%1$s (default %1$s)"),
name);
rc = fdisk_ask_string(cxt, buf, &res);
if (rc)
goto done;
if (res && *res)
name = res;
snprintf(buf, sizeof(buf), "%s/%sboot", BSD_LINUX_BOOTDIR, name);
rc = bsd_get_bootstrap(cxt, buf, l->bsdbuffer, (int) d->d_secsize);
if (rc)
goto done;
/* We need a backup of the disklabel (might have changed). */
dp = &l->bsdbuffer[BSD_LABELSECTOR * DEFAULT_SECTOR_SIZE];
memmove(&dl, dp, sizeof(struct bsd_disklabel));
/* The disklabel will be overwritten by 0's from bootxx anyway */
memset(dp, 0, sizeof(struct bsd_disklabel));
snprintf(buf, sizeof(buf), "%s/boot%s", BSD_LINUX_BOOTDIR, name);
rc = bsd_get_bootstrap(cxt, buf,
&l->bsdbuffer[d->d_secsize],
(int) d->d_bbsize - d->d_secsize);
if (rc)
goto done;
/* check end of the bootstrap */
for (p = dp; p < dp + sizeof(struct bsd_disklabel); p++) {
if (!*p)
continue;
fdisk_warnx(cxt, _("Bootstrap overlaps with disklabel!"));
return -EINVAL;
}
/* move disklabel back */
memmove(dp, &dl, sizeof(struct bsd_disklabel));
sector = 0;
if (l->dos_part)
sector = dos_partition_get_start(l->dos_part);
#if defined (__alpha__)
alpha_bootblock_checksum(l->bsdbuffer);
#endif
if (lseek(cxt->dev_fd, (off_t) sector * DEFAULT_SECTOR_SIZE, SEEK_SET) == -1) {
fdisk_warn(cxt, _("seek on %s failed"), cxt->dev_path);
rc = -errno;
goto done;
}
if (write_all(cxt->dev_fd, l->bsdbuffer, BSD_BBSIZE)) {
fdisk_warn(cxt, _("cannot write %s"), cxt->dev_path);
rc = -errno;
goto done;
}
fdisk_sinfo(cxt, FDISK_INFO_SUCCESS,
_("Bootstrap installed on %s."), cxt->dev_path);
sync_disks(cxt);
rc = 0;
done:
free(res);
return rc;
}
/* XXX This function really should be cancellable (for the benefit of
* virt-sparsify). However currently the library can only handle
* cancellation for FileIn/FileOut operations.
*/
int
do_zero_free_space (const char *dir)
{
size_t len = strlen (dir);
char filename[sysroot_len+len+14]; /* sysroot + dir + "/" + 8.3 + "\0" */
int fd;
unsigned skip = 0;
struct statvfs statbuf;
fsblkcnt_t bfree_initial;
/* Choose a randomly named 8.3 file. Because of the random name,
* this won't conflict with existing files, and it should be
* compatible with any filesystem type inc. FAT.
*/
snprintf (filename, sysroot_len+len+14, "%s%s/XXXXXXXX.XXX", sysroot, dir);
if (random_name (filename) == -1) {
reply_with_perror ("random_name");
return -1;
}
if (verbose)
printf ("random filename: %s\n", filename);
/* Open file and fill with zeroes until we run out of space. */
fd = open (filename, O_WRONLY|O_CREAT|O_EXCL|O_NOCTTY|O_CLOEXEC, 0600);
if (fd == -1) {
reply_with_perror ("open: %s", filename);
return -1;
}
/* To estimate progress in this operation, we're going to track
* free blocks in this filesystem down to zero.
*/
if (fstatvfs (fd, &statbuf) == -1) {
reply_with_perror ("fstatvfs");
close (fd);
return -1;
}
bfree_initial = statbuf.f_bfree;
for (;;) {
if (write (fd, zero_buf, sizeof zero_buf) == -1) {
if (errno == ENOSPC) /* expected error */
break;
reply_with_perror ("write: %s", filename);
close (fd);
unlink (filename);
return -1;
}
skip++;
if ((skip & 256) == 0 && fstatvfs (fd, &statbuf) == 0)
notify_progress (bfree_initial - statbuf.f_bfree, bfree_initial);
}
/* Make sure the file is completely written to disk. */
close (fd); /* expect this to give an error, don't check it */
sync_disks ();
notify_progress (bfree_initial, bfree_initial);
/* Remove the file. */
if (unlink (filename) == -1) {
reply_with_perror ("unlink: %s", filename);
return -1;
}
return 0;
}
static void
xbsd_write_bootstrap(void)
{
char path[MAXPATHLEN];
const char *bootdir = BSD_LINUX_BOOTDIR;
const char *dkbasename;
struct xbsd_disklabel dl;
char *d, *p, *e;
int sector;
if (xbsd_dlabel.d_type == BSD_DTYPE_SCSI)
dkbasename = "sd";
else
dkbasename = "wd";
snprintf(path, sizeof(path), "Bootstrap: %sboot -> boot%s (%s): ",
dkbasename, dkbasename, dkbasename);
if (read_line(path)) {
dkbasename = line_ptr;
}
snprintf(path, sizeof(path), "%s/%sboot", bootdir, dkbasename);
if (!xbsd_get_bootstrap(path, disklabelbuffer, (int) xbsd_dlabel.d_secsize))
return;
/* We need a backup of the disklabel (xbsd_dlabel might have changed). */
d = &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE];
memmove(&dl, d, sizeof(struct xbsd_disklabel));
/* The disklabel will be overwritten by 0's from bootxx anyway */
memset(d, 0, sizeof(struct xbsd_disklabel));
snprintf(path, sizeof(path), "%s/boot%s", bootdir, dkbasename);
if (!xbsd_get_bootstrap(path, &disklabelbuffer[xbsd_dlabel.d_secsize],
(int) xbsd_dlabel.d_bbsize - xbsd_dlabel.d_secsize))
return;
e = d + sizeof(struct xbsd_disklabel);
for (p = d; p < e; p++)
if (*p) {
printf("Bootstrap overlaps with disk label!\n");
exit(EXIT_FAILURE);
}
memmove(d, &dl, sizeof(struct xbsd_disklabel));
#if defined(__powerpc__) || defined(__hppa__)
sector = 0;
#elif defined(__alpha__)
sector = 0;
alpha_bootblock_checksum(disklabelbuffer);
#else
sector = get_start_sect(xbsd_part);
#endif
seek_sector(sector);
xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE);
#if defined(__alpha__)
printf("Bootstrap installed on %s\n", disk_device);
#else
printf("Bootstrap installed on %s\n",
partname(disk_device, xbsd_part_index+1, 0));
#endif
sync_disks();
}
static void
xbsd_write_bootstrap (void)
{
char *bootdir = BSD_LINUX_BOOTDIR;
char path[MAXPATHLEN];
char *dkbasename;
struct xbsd_disklabel dl;
char *d, *p, *e;
int sector;
if (xbsd_dlabel.d_type == BSD_DTYPE_SCSI)
dkbasename = "sd";
else
dkbasename = "wd";
printf (_("Bootstrap: %sboot -> boot%s (%s): "), dkbasename, dkbasename, dkbasename);
if (read_line ())
{
line_ptr[strlen (line_ptr)-1] = '\0';
dkbasename = line_ptr;
}
sprintf (path, "%s/%sboot", bootdir, dkbasename);
if (!xbsd_get_bootstrap (path, disklabelbuffer, (int) xbsd_dlabel.d_secsize))
return;
/* We need a backup of the disklabel (xbsd_dlabel might have changed). */
d = &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE];
bcopy (d, &dl, sizeof (struct xbsd_disklabel));
/* The disklabel will be overwritten by 0's from bootxx anyway */
bzero (d, sizeof (struct xbsd_disklabel));
sprintf (path, "%s/boot%s", bootdir, dkbasename);
if (!xbsd_get_bootstrap (path, &disklabelbuffer[xbsd_dlabel.d_secsize],
(int) xbsd_dlabel.d_bbsize - xbsd_dlabel.d_secsize))
return;
e = d + sizeof (struct xbsd_disklabel);
for (p=d; p < e; p++)
if (*p)
{
fprintf (stderr, _("Bootstrap overlaps with disk label!\n"));
exit ( EXIT_FAILURE );
}
bcopy (&dl, d, sizeof (struct xbsd_disklabel));
#if defined (__powerpc__)
sector = 0;
#elif defined (__alpha__)
sector = 0;
alpha_bootblock_checksum (disklabelbuffer);
#else
sector = get_start_sect(xbsd_part);
#endif
if (ext2_llseek (fd, (ext2_loff_t) sector * SECTOR_SIZE, SEEK_SET) == -1)
fatal (unable_to_seek);
if (BSD_BBSIZE != write (fd, disklabelbuffer, BSD_BBSIZE))
fatal (unable_to_write);
#if defined (__alpha__)
printf (_("Bootstrap installed on %s.\n"), disk_device);
#else
printf (_("Bootstrap installed on %s.\n"),
partname (disk_device, xbsd_part_index+1, 0));
#endif
sync_disks ();
}