int ufs_check_dir_entry (const char * function, struct inode * dir,
struct ufs_dir_entry * de, struct buffer_head * bh,
unsigned long offset)
{
struct super_block * sb;
const char * error_msg;
unsigned flags, swab;
sb = dir->i_sb;
flags = sb->u.ufs_sb.s_flags;
swab = sb->u.ufs_sb.s_swab;
error_msg = NULL;
if (SWAB16(de->d_reclen) < UFS_DIR_REC_LEN(1))
error_msg = "reclen is smaller than minimal";
else if (SWAB16(de->d_reclen) % 4 != 0)
error_msg = "reclen % 4 != 0";
else if (SWAB16(de->d_reclen) < UFS_DIR_REC_LEN(ufs_get_de_namlen(de)))
error_msg = "reclen is too small for namlen";
else if (dir && ((char *) de - bh->b_data) + SWAB16(de->d_reclen) >
dir->i_sb->s_blocksize)
error_msg = "directory entry across blocks";
else if (dir && SWAB32(de->d_ino) > (sb->u.ufs_sb.s_uspi->s_ipg * sb->u.ufs_sb.s_uspi->s_ncg))
error_msg = "inode out of bounds";
if (error_msg != NULL)
ufs_error (sb, function, "bad entry in directory #%lu, size %lu: %s - "
"offset=%lu, inode=%lu, reclen=%d, namlen=%d",
dir->i_ino, dir->i_size, error_msg, offset,
(unsigned long) SWAB32(de->d_ino),
SWAB16(de->d_reclen), ufs_get_de_namlen(de));
return (error_msg == NULL ? 1 : 0);
}
static int ufs_new_dir_block(uufsd_t *ufs, ino_t dir_ino,
struct ufs_vnode *parent, char **block)
{
struct direct *dir = NULL;
int retval;
char *buf;
int rec_len;
struct fs *fs = &ufs->d_fs;
int dirsize = DIRBLKSIZ;
int blocksize = fragroundup(fs, dirsize);
retval = ufs_get_mem(blocksize, &buf);
if (retval)
return retval;
memset(buf, 0, blocksize);
dir = (struct direct *) buf;
//retval = ufs_set_rec_len(ufs, dirsize, dir);
//if (retval)
//return retval;
if (dir_ino) {
/*
* Set up entry for '.'
*/
dir->d_ino = dir_ino;
dir->d_namlen = 1;
dir->d_name[0] = '.';
dir->d_type = DT_DIR;
rec_len = dirsize - UFS_DIR_REC_LEN(1);
dir->d_reclen = UFS_DIR_REC_LEN(1);
/*
* Set up entry for '..'
*/
dir = (struct direct *) (buf + dir->d_reclen);
//retval = ufs_set_rec_len(ufs, rec_len, dir);
//if (retval)
//return retval;
dir->d_ino = vnode2inode(parent)->i_number;
dir->d_namlen = 2;
dir->d_name[0] = '.';
dir->d_name[1] = '.';
dir->d_type = DT_DIR;
dir->d_reclen = rec_len;
}
*block = buf;
return 0;
}
