int
rtems_rfs_rtems_initialise (rtems_filesystem_mount_table_entry_t* mt_entry,
const void* data)
{
rtems_rfs_rtems_private* rtems;
rtems_rfs_file_system* fs;
uint32_t flags = 0;
uint32_t max_held_buffers = RTEMS_RFS_FS_MAX_HELD_BUFFERS;
const char* options = data;
int rc;
/*
* Parse the options the user specifiies.
*/
while (options)
{
printf ("options=%s\n", options);
if (strncmp (options, "hold-bitmaps",
sizeof ("hold-bitmaps") - 1) == 0)
flags |= RTEMS_RFS_FS_BITMAPS_HOLD;
else if (strncmp (options, "no-local-cache",
sizeof ("no-local-cache") - 1) == 0)
flags |= RTEMS_RFS_FS_NO_LOCAL_CACHE;
else if (strncmp (options, "max-held-bufs",
sizeof ("max-held-bufs") - 1) == 0)
{
max_held_buffers = strtoul (options + sizeof ("max-held-bufs"), 0, 0);
}
else
return rtems_rfs_rtems_error ("initialise: invalid option", EINVAL);
options = strchr (options, ',');
if (options)
{
++options;
if (*options == '\0')
options = NULL;
}
}
rtems = malloc (sizeof (rtems_rfs_rtems_private));
if (!rtems)
return rtems_rfs_rtems_error ("initialise: local data", ENOMEM);
memset (rtems, 0, sizeof (rtems_rfs_rtems_private));
rc = rtems_rfs_mutex_create (&rtems->access);
if (rc > 0)
{
free (rtems);
return rtems_rfs_rtems_error ("initialise: cannot create mutex", rc);
}
rc = rtems_rfs_mutex_lock (&rtems->access);
if (rc > 0)
{
rtems_rfs_mutex_destroy (&rtems->access);
free (rtems);
return rtems_rfs_rtems_error ("initialise: cannot lock access mutex", rc);
}
rc = rtems_rfs_fs_open (mt_entry->dev, rtems, flags, max_held_buffers, &fs);
if (rc)
{
free (rtems);
return rtems_rfs_rtems_error ("initialise: open", rc);
}
mt_entry->fs_info = fs;
mt_entry->ops = &rtems_rfs_ops;
mt_entry->mt_fs_root->location.node_access = (void*) RTEMS_RFS_ROOT_INO;
mt_entry->mt_fs_root->location.handlers = &rtems_rfs_rtems_dir_handlers;
rtems_rfs_rtems_unlock (fs);
return 0;
}
static int
rtems_rfs_write_root_dir (const char* name)
{
rtems_rfs_file_system* fs;
rtems_rfs_inode_handle inode;
rtems_rfs_ino ino;
int rc;
/*
* External API so returns -1.
*/
rc = rtems_rfs_fs_open (name, NULL, RTEMS_RFS_FS_FORCE_OPEN, &fs);
if (rc < 0)
{
printf ("rtems-rfs: format: file system open failed: %d: %s\n",
errno, strerror (errno));
return -1;
}
rc = rtems_rfs_inode_alloc (fs, RTEMS_RFS_ROOT_INO, &ino);
if (rc > 0)
{
printf ("rtems-rfs: format: inode allocation failed: %d: %s\n",
rc, strerror (rc));
rtems_rfs_fs_close (fs);
return rc;
}
if (ino != RTEMS_RFS_ROOT_INO)
{
printf ("rtems-rfs: format: allocated inode not root ino: %" PRId32 "\n", ino);
rtems_rfs_fs_close (fs);
return rc;
}
rc = rtems_rfs_inode_open (fs, ino, &inode, true);
if (rc > 0)
{
printf ("rtems-rfs: format: inode open failed: %d: %s\n",
rc, strerror (rc));
rtems_rfs_group_bitmap_free (fs, true, ino);
rtems_rfs_fs_close (fs);
return rc;
}
rc = rtems_rfs_inode_initialise (&inode, 0,
(RTEMS_RFS_S_IFDIR | RTEMS_RFS_S_IRWXU |
RTEMS_RFS_S_IXGRP | RTEMS_RFS_S_IXOTH),
0, 0);
if (rc > 0)
printf ("rtems-rfs: format: inode initialise failed: %d: %s\n",
rc, strerror (rc));
rc = rtems_rfs_dir_add_entry (fs, &inode, ".", 1, ino);
if (rc > 0)
printf ("rtems-rfs: format: directory add failed: %d: %s\n",
rc, strerror (rc));
rc = rtems_rfs_inode_close (fs, &inode);
if (rc > 0)
printf ("rtems-rfs: format: inode close failed: %d: %s\n",
rc, strerror (rc));
rc = rtems_rfs_fs_close (fs);
if (rc < 0)
printf ("rtems-rfs: format: file system close failed: %d: %s\n",
errno, strerror (errno));
return rc;
}