static int
zpl_ioctl_setflags(struct file *filp, void __user *arg)
{
struct inode *ip = file_inode(filp);
uint64_t zfs_flags = ITOZ(ip)->z_pflags;
unsigned int ioctl_flags;
cred_t *cr = CRED();
xvattr_t xva;
xoptattr_t *xoap;
int error;
fstrans_cookie_t cookie;
if (copy_from_user(&ioctl_flags, arg, sizeof (ioctl_flags)))
return (-EFAULT);
if ((ioctl_flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | FS_NODUMP_FL)))
return (-EOPNOTSUPP);
if ((ioctl_flags & ~(FS_FL_USER_MODIFIABLE)))
return (-EACCES);
if ((fchange(ioctl_flags, zfs_flags, FS_IMMUTABLE_FL, ZFS_IMMUTABLE) ||
fchange(ioctl_flags, zfs_flags, FS_APPEND_FL, ZFS_APPENDONLY)) &&
!capable(CAP_LINUX_IMMUTABLE))
return (-EACCES);
if (!zpl_inode_owner_or_capable(ip))
return (-EACCES);
xva_init(&xva);
xoap = xva_getxoptattr(&xva);
XVA_SET_REQ(&xva, XAT_IMMUTABLE);
if (ioctl_flags & FS_IMMUTABLE_FL)
xoap->xoa_immutable = B_TRUE;
XVA_SET_REQ(&xva, XAT_APPENDONLY);
if (ioctl_flags & FS_APPEND_FL)
xoap->xoa_appendonly = B_TRUE;
XVA_SET_REQ(&xva, XAT_NODUMP);
if (ioctl_flags & FS_NODUMP_FL)
xoap->xoa_nodump = B_TRUE;
crhold(cr);
cookie = spl_fstrans_mark();
error = -zfs_setattr(ip, (vattr_t *)&xva, 0, cr);
spl_fstrans_unmark(cookie);
crfree(cr);
return (error);
}
static int
__zpl_ioctl_setflags(struct inode *ip, uint32_t ioctl_flags, xvattr_t *xva)
{
uint64_t zfs_flags = ITOZ(ip)->z_pflags;
xoptattr_t *xoap;
if (ioctl_flags & ~(FS_IMMUTABLE_FL | FS_APPEND_FL | FS_NODUMP_FL |
ZFS_PROJINHERIT_FL))
return (-EOPNOTSUPP);
if (ioctl_flags & ~ZFS_FL_USER_MODIFIABLE)
return (-EACCES);
if ((fchange(ioctl_flags, zfs_flags, FS_IMMUTABLE_FL, ZFS_IMMUTABLE) ||
fchange(ioctl_flags, zfs_flags, FS_APPEND_FL, ZFS_APPENDONLY)) &&
!capable(CAP_LINUX_IMMUTABLE))
return (-EACCES);
if (!zpl_inode_owner_or_capable(ip))
return (-EACCES);
xva_init(xva);
xoap = xva_getxoptattr(xva);
XVA_SET_REQ(xva, XAT_IMMUTABLE);
if (ioctl_flags & FS_IMMUTABLE_FL)
xoap->xoa_immutable = B_TRUE;
XVA_SET_REQ(xva, XAT_APPENDONLY);
if (ioctl_flags & FS_APPEND_FL)
xoap->xoa_appendonly = B_TRUE;
XVA_SET_REQ(xva, XAT_NODUMP);
if (ioctl_flags & FS_NODUMP_FL)
xoap->xoa_nodump = B_TRUE;
XVA_SET_REQ(xva, XAT_PROJINHERIT);
if (ioctl_flags & ZFS_PROJINHERIT_FL)
xoap->xoa_projinherit = B_TRUE;
return (0);
}
