/*
* Function: be_is_active_on_boot
* Description: Checks if the BE name passed in has the "active on boot"
* property set to B_TRUE.
* Paramters:
* be_name - the name of the BE to check
* Returns:
* B_TRUE - if active on boot.
* B_FALSE - if not active on boot.
* Scope:
* Semi-private (library wide use only)
*/
boolean_t
be_is_active_on_boot(char *be_name)
{
be_node_list_t *be_node = NULL;
if (be_name == NULL) {
be_print_err(gettext("be_is_active_on_boot: "
"be_name must not be NULL\n"));
return (B_FALSE);
}
if (_be_list(be_name, &be_node) != BE_SUCCESS) {
return (B_FALSE);
}
if (be_node == NULL) {
return (B_FALSE);
}
if (be_node->be_active_on_boot) {
be_free_list(be_node);
return (B_TRUE);
} else {
be_free_list(be_node);
return (B_FALSE);
}
}
/*
* Function: be_list
* Description: Calls _be_list which finds all the BEs on the system and
* returns the datasets and snapshots belonging to each BE.
* Also data, such as dataset and snapshot properties,
* for each BE and their snapshots and datasets is
* returned. The data returned is as described in the
* be_dataset_list_t, be_snapshot_list_t and be_node_list_t
* structures.
* Parameters:
* be_name - The name of the BE to look up.
* If NULL a list of all BEs will be returned.
* be_nodes - A reference pointer to the list of BEs. The list
* structure will be allocated by _be_list and must
* be freed by a call to be_free_list. If there are no
* BEs found on the system this reference will be
* set to NULL.
* Return:
* BE_SUCCESS - Success
* be_errno_t - Failure
* Scope:
* Public
*/
int
be_list(char *be_name, be_node_list_t **be_nodes)
{
int ret = BE_SUCCESS;
/* Initialize libzfs handle */
if (!be_zfs_init())
return (BE_ERR_INIT);
/* Validate be_name if its not NULL */
if (be_name != NULL) {
if (!be_valid_be_name(be_name)) {
be_print_err(gettext("be_list: "
"invalid BE name %s\n"), be_name);
return (BE_ERR_INVAL);
}
}
ret = _be_list(be_name, be_nodes);
be_zfs_fini();
return (ret);
}
/*
* Function: _be_activate
* Description: This does the actual work described in be_activate.
* Parameters:
* be_name - pointer to the name of BE to activate.
*
* Return:
* BE_SUCCESS - Success
* be_errnot_t - Failure
* Scope:
* Public
*/
int
_be_activate(char *be_name)
{
be_transaction_data_t cb = { 0 };
zfs_handle_t *zhp = NULL;
char root_ds[MAXPATHLEN];
char *cur_vers = NULL, *new_vers = NULL;
be_node_list_t *be_nodes = NULL;
uuid_t uu = {0};
int entry, ret = BE_SUCCESS;
int zret = 0;
/*
* TODO: The BE needs to be validated to make sure that it is actually
* a bootable BE.
*/
if (be_name == NULL)
return (BE_ERR_INVAL);
/* Set obe_name to be_name in the cb structure */
cb.obe_name = be_name;
/* find which zpool the be is in */
if ((zret = zpool_iter(g_zfs, be_find_zpool_callback, &cb)) == 0) {
be_print_err(gettext("be_activate: failed to "
"find zpool for BE (%s)\n"), cb.obe_name);
return (BE_ERR_BE_NOENT);
} else if (zret < 0) {
be_print_err(gettext("be_activate: "
"zpool_iter failed: %s\n"),
libzfs_error_description(g_zfs));
ret = zfs_err_to_be_err(g_zfs);
return (ret);
}
be_make_root_ds(cb.obe_zpool, cb.obe_name, root_ds, sizeof (root_ds));
cb.obe_root_ds = strdup(root_ds);
if (getzoneid() == GLOBAL_ZONEID) {
if (be_has_grub() && (ret = be_get_grub_vers(&cb, &cur_vers,
&new_vers)) != BE_SUCCESS) {
be_print_err(gettext("be_activate: failed to get grub "
"versions from capability files.\n"));
return (ret);
}
if (cur_vers != NULL) {
/*
* We need to check to see if the version number from
* the BE being activated is greater than the current
* one.
*/
if (new_vers != NULL &&
atof(cur_vers) < atof(new_vers)) {
if ((ret = be_do_installgrub(&cb))
!= BE_SUCCESS) {
free(new_vers);
free(cur_vers);
return (ret);
}
free(new_vers);
}
free(cur_vers);
} else if (new_vers != NULL) {
if ((ret = be_do_installgrub(&cb)) != BE_SUCCESS) {
free(new_vers);
return (ret);
}
free(new_vers);
}
if (!be_has_menu_entry(root_ds, cb.obe_zpool, &entry)) {
if ((ret = be_append_menu(cb.obe_name, cb.obe_zpool,
NULL, NULL, NULL)) != BE_SUCCESS) {
be_print_err(gettext("be_activate: Failed to "
"add BE (%s) to the GRUB menu\n"),
cb.obe_name);
goto done;
}
}
if (be_has_grub()) {
if ((ret = be_change_grub_default(cb.obe_name,
cb.obe_zpool)) != BE_SUCCESS) {
be_print_err(gettext("be_activate: failed to "
"change the default entry in menu.lst\n"));
goto done;
}
}
}
if ((ret = _be_list(cb.obe_name, &be_nodes)) != BE_SUCCESS) {
return (ret);
}
if ((ret = set_canmount(be_nodes, "noauto")) != BE_SUCCESS) {
be_print_err(gettext("be_activate: failed to set "
"canmount dataset property\n"));
goto done;
}
if ((ret = set_bootfs(be_nodes->be_rpool, root_ds)) != BE_SUCCESS) {
be_print_err(gettext("be_activate: failed to set "
"bootfs pool property for %s\n"), root_ds);
goto done;
}
if ((zhp = zfs_open(g_zfs, root_ds, ZFS_TYPE_FILESYSTEM)) != NULL) {
/*
* We don't need to close the zfs handle at this
* point because The callback funtion
* be_promote_ds_callback() will close it for us.
*/
if (be_promote_ds_callback(zhp, NULL) != 0) {
be_print_err(gettext("be_activate: "
"failed to activate the "
"datasets for %s: %s\n"),
root_ds,
libzfs_error_description(g_zfs));
ret = BE_ERR_PROMOTE;
goto done;
}
} else {
be_print_err(gettext("be_activate:: failed to open "
"dataset (%s): %s\n"), root_ds,
libzfs_error_description(g_zfs));
ret = zfs_err_to_be_err(g_zfs);
goto done;
}
if (getzoneid() == GLOBAL_ZONEID &&
be_get_uuid(cb.obe_root_ds, &uu) == BE_SUCCESS &&
(ret = be_promote_zone_ds(cb.obe_name, cb.obe_root_ds))
!= BE_SUCCESS) {
be_print_err(gettext("be_activate: failed to promote "
"the active zonepath datasets for zones in BE %s\n"),
cb.obe_name);
}
done:
be_free_list(be_nodes);
return (ret);
}