int
rtems_rfs_inode_create (rtems_rfs_file_system* fs,
rtems_rfs_ino parent,
const char* name,
size_t length,
uint16_t mode,
uint16_t links,
uid_t uid,
gid_t gid,
rtems_rfs_ino* ino)
{
rtems_rfs_inode_handle parent_inode;
rtems_rfs_inode_handle inode;
int rc;
if (rtems_rfs_trace (RTEMS_RFS_TRACE_INODE_CREATE))
{
const char* type = "unknown";
int c;
if (RTEMS_RFS_S_ISDIR (mode))
type = "dir";
else if (RTEMS_RFS_S_ISCHR (mode))
type = "char";
else if (RTEMS_RFS_S_ISBLK (mode))
type = "block";
else if (RTEMS_RFS_S_ISREG (mode))
type = "file";
else if (RTEMS_RFS_S_ISLNK (mode))
type = "link";
printf("rtems-rfs: inode-create: parent:%" PRIu32 " name:", parent);
for (c = 0; c < length; c++)
printf ("%c", name[c]);
printf (" type:%s mode:%04x (%03o)\n", type, mode, mode & ((1 << 10) - 1));
}
/*
* The file type is field within the mode. Check we have a sane mode set.
*/
switch (mode & RTEMS_RFS_S_IFMT)
{
case RTEMS_RFS_S_IFDIR:
case RTEMS_RFS_S_IFCHR:
case RTEMS_RFS_S_IFBLK:
case RTEMS_RFS_S_IFREG:
case RTEMS_RFS_S_IFLNK:
break;
default:
return EINVAL;
}
rc = rtems_rfs_inode_alloc (fs, parent, ino);
if (rc > 0)
return rc;
rc = rtems_rfs_inode_open (fs, *ino, &inode, true);
if (rc > 0)
{
rtems_rfs_inode_free (fs, *ino);
return rc;
}
rc = rtems_rfs_inode_initialise (&inode, links, mode, uid, gid);
if (rc > 0)
{
rtems_rfs_inode_close (fs, &inode);
rtems_rfs_inode_free (fs, *ino);
return rc;
}
/*
* Only handle the specifics of a directory. Let caller handle the others.
*
* The inode delete will free the inode.
*/
if (RTEMS_RFS_S_ISDIR (mode))
{
rc = rtems_rfs_dir_add_entry (fs, &inode, ".", 1, *ino);
if (rc == 0)
rc = rtems_rfs_dir_add_entry (fs, &inode, "..", 2, parent);
if (rc > 0)
{
rtems_rfs_inode_delete (fs, &inode);
rtems_rfs_inode_close (fs, &inode);
return rc;
}
}
rc = rtems_rfs_inode_open (fs, parent, &parent_inode, true);
if (rc > 0)
{
rtems_rfs_inode_delete (fs, &inode);
rtems_rfs_inode_close (fs, &inode);
return rc;
}
rc = rtems_rfs_dir_add_entry (fs, &parent_inode, name, length, *ino);
if (rc > 0)
{
rtems_rfs_inode_delete (fs, &inode);
rtems_rfs_inode_close (fs, &inode);
rtems_rfs_inode_close (fs, &parent_inode);
return rc;
}
/*
* If the node is a directory update the parent link count as the
* new directory has the '..' link that points to the parent.
*/
if (RTEMS_RFS_S_ISDIR (mode))
rtems_rfs_inode_set_links (&parent_inode,
rtems_rfs_inode_get_links (&parent_inode) + 1);
rc = rtems_rfs_inode_close (fs, &parent_inode);
if (rc > 0)
{
rtems_rfs_inode_delete (fs, &inode);
rtems_rfs_inode_close (fs, &inode);
return rc;
}
rc = rtems_rfs_inode_close (fs, &inode);
if (rc > 0)
{
rtems_rfs_inode_free (fs, *ino);
return rc;
}
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;
}
