/*
* MPALMOSTSAFE
*/
int
sys_olstat(struct olstat_args *uap)
{
struct nlookupdata nd;
struct stat st;
int error;
get_mplock();
error = nlookup_init(&nd, uap->path, UIO_USERSPACE, 0);
if (error == 0) {
error = kern_stat(&nd, &st);
if (error == 0)
error = compat_43_copyout_stat(&st, uap->ub);
nlookup_done(&nd);
}
rel_mplock();
return (error);
}
/*
* stat_args(char *path, struct dfbsd12_stat *ub)
*
* Get file status; this version follows links.
*
* MPALMOSTSAFE
*/
int
sys_dfbsd12_stat(struct dfbsd12_stat_args *uap)
{
struct nlookupdata nd;
struct dfbsd12_stat ost;
struct stat st;
int error;
get_mplock();
error = nlookup_init(&nd, uap->path, UIO_USERSPACE, NLC_FOLLOW);
if (error == 0) {
error = kern_stat(&nd, &st);
if (error == 0) {
cvtstat(&ost, &st);
error = copyout(&ost, uap->ub, sizeof(ost));
}
}
nlookup_done(&nd);
rel_mplock();
return (error);
}
static int
parse_dir_md(char **conf)
{
struct stat sb;
struct thread *td;
struct md_ioctl *mdio;
char *path, *tok;
int error, fd, len;
td = curthread;
error = parse_token(conf, &tok);
if (error)
return (error);
len = strlen(tok);
mdio = malloc(sizeof(*mdio) + len + 1, M_TEMP, M_WAITOK | M_ZERO);
path = (void *)(mdio + 1);
bcopy(tok, path, len);
free(tok, M_TEMP);
/* Get file status. */
error = kern_stat(td, path, UIO_SYSSPACE, &sb);
if (error)
goto out;
/* Open /dev/mdctl so that we can attach/detach. */
error = kern_open(td, "/dev/" MDCTL_NAME, UIO_SYSSPACE, O_RDWR, 0);
if (error)
goto out;
fd = td->td_retval[0];
mdio->md_version = MDIOVERSION;
mdio->md_type = MD_VNODE;
if (root_mount_mddev != -1) {
mdio->md_unit = root_mount_mddev;
DROP_GIANT();
error = kern_ioctl(td, fd, MDIOCDETACH, (void *)mdio);
PICKUP_GIANT();
/* Ignore errors. We don't care. */
root_mount_mddev = -1;
}
mdio->md_file = (void *)(mdio + 1);
mdio->md_options = MD_AUTOUNIT | MD_READONLY;
mdio->md_mediasize = sb.st_size;
mdio->md_unit = 0;
DROP_GIANT();
error = kern_ioctl(td, fd, MDIOCATTACH, (void *)mdio);
PICKUP_GIANT();
if (error)
goto out;
if (mdio->md_unit > 9) {
printf("rootmount: too many md units\n");
mdio->md_file = NULL;
mdio->md_options = 0;
mdio->md_mediasize = 0;
DROP_GIANT();
error = kern_ioctl(td, fd, MDIOCDETACH, (void *)mdio);
PICKUP_GIANT();
/* Ignore errors. We don't care. */
error = ERANGE;
goto out;
}
root_mount_mddev = mdio->md_unit;
printf(MD_NAME "%u attached to %s\n", root_mount_mddev, mdio->md_file);
error = kern_close(td, fd);
out:
free(mdio, M_TEMP);
return (error);
}
