/* Callback function needed for calls to fshelp_fetch_root. See
<hurd/fshelp.h> for the interface description. */
static error_t
_netfs_translator_callback2_fn (void *cookie1, void *cookie2, int flags,
mach_port_t *underlying,
mach_msg_type_name_t *underlying_type)
{
error_t err;
struct protid *cred;
struct node *node = cookie1;
struct iouser *user;
err = iohelp_create_simple_iouser (&user, node->nn_stat.st_uid,
node->nn_stat.st_gid);
if (err)
return err;
cred = netfs_make_protid (netfs_make_peropen (node, flags, cookie2),
user);
if (cred)
{
*underlying = ports_get_right (cred);
*underlying_type = MACH_MSG_TYPE_MAKE_SEND;
ports_port_deref (cred);
return 0;
}
else
{
iohelp_free_iouser (user);
return errno;
}
}
error_t
netfs_S_dir_mkfile (struct protid *diruser, int flags, mode_t mode,
mach_port_t *newfile, mach_msg_type_name_t *newfiletype)
{
error_t err;
struct node *np;
struct iouser *user;
struct protid *newpi;
pthread_mutex_lock (&diruser->po->np->lock);
err = netfs_attempt_mkfile (diruser->user, diruser->po->np, mode, &np);
if (!err)
{
/* the dir is now unlocked and NP is locked */
flags &= OPENONLY_STATE_MODES;
err = iohelp_dup_iouser (&user, diruser->user);
if (! err)
{
newpi = netfs_make_protid (netfs_make_peropen (np, flags,
diruser->po),
user);
if (newpi)
{
*newfile = ports_get_right (newpi);
*newfiletype = MACH_MSG_TYPE_MAKE_SEND;
ports_port_deref (newpi);
}
else
{
err = errno;
iohelp_free_iouser (user);
}
}
netfs_nput (np);
}
return err;
}
error_t
netfs_S_io_restrict_auth (struct protid *user,
mach_port_t *newport,
mach_msg_type_name_t *newporttype,
uid_t *uids,
mach_msg_type_number_t nuids,
gid_t *gids,
mach_msg_type_number_t ngids)
{
error_t err;
struct protid *newpi;
struct iouser *new_user;
if (!user)
return EOPNOTSUPP;
err = iohelp_restrict_iouser (&new_user, user->user,
uids, nuids, gids, ngids);
if (err)
return err;
refcount_ref (&user->po->refcnt);
newpi = netfs_make_protid (user->po, new_user);
if (newpi)
{
*newport = ports_get_right (newpi);
*newporttype = MACH_MSG_TYPE_MAKE_SEND;
}
else
{
refcount_deref (&user->po->refcnt);
iohelp_free_iouser (new_user);
err = ENOMEM;
}
ports_port_deref (newpi);
return err;
}
