complex.c
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	/*
	* Copyright 2004-2018 Andrew Beekhof <andrew@beekhof.net>
	*
	* This source code is licensed under the GNU Lesser General Public License
	* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
	*/

	#include <crm_internal.h>

	#include <crm/pengine/rules.h>
	#include <crm/pengine/internal.h>
	#include <crm/msg_xml.h>

	#include <unpack.h>

	void populate_hash(xmlNode * nvpair_list, GHashTable * hash, const char **attrs, int attrs_length);

	resource_object_functions_t resource_class_functions[] = {
	{
	native_unpack,
	native_find_rsc,
	native_parameter,
	native_print,
	native_active,
	native_resource_state,
	native_location,
	native_free,
	pe__count_common,
	},
	{
	group_unpack,
	native_find_rsc,
	native_parameter,
	group_print,
	group_active,
	group_resource_state,
	native_location,
	group_free,
	pe__count_common,
	},
	{
	clone_unpack,
	native_find_rsc,
	native_parameter,
	clone_print,
	clone_active,
	clone_resource_state,
	native_location,
	clone_free,
	pe__count_common,
	},
	{
	master_unpack,
	native_find_rsc,
	native_parameter,
	clone_print,
	clone_active,
	clone_resource_state,
	native_location,
	clone_free,
	pe__count_common,
	},
	{
	container_unpack,
	native_find_rsc,
	native_parameter,
	container_print,
	container_active,
	container_resource_state,
	native_location,
	container_free,
	pe__count_bundle,
	}
	};

	enum pe_obj_types
	get_resource_type(const char *name)
	{
	if (safe_str_eq(name, XML_CIB_TAG_RESOURCE)) {
	return pe_native;

	} else if (safe_str_eq(name, XML_CIB_TAG_GROUP)) {
	return pe_group;

	} else if (safe_str_eq(name, XML_CIB_TAG_INCARNATION)) {
	return pe_clone;

	} else if (safe_str_eq(name, XML_CIB_TAG_MASTER)) {
	return pe_master;

	} else if (safe_str_eq(name, XML_CIB_TAG_CONTAINER)) {
	return pe_container;
	}

	return pe_unknown;
	}

	const char *
	get_resource_typename(enum pe_obj_types type)
	{
	switch (type) {
	case pe_native:
	return XML_CIB_TAG_RESOURCE;
	case pe_group:
	return XML_CIB_TAG_GROUP;
	case pe_clone:
	return XML_CIB_TAG_INCARNATION;
	case pe_master:
	return XML_CIB_TAG_MASTER;
	case pe_container:
	return XML_CIB_TAG_CONTAINER;
	case pe_unknown:
	return "unknown";
	}
	return "<unknown>";
	}

	static void
	dup_attr(gpointer key, gpointer value, gpointer user_data)
	{
	add_hash_param(user_data, key, value);
	}

	void
	get_meta_attributes(GHashTable * meta_hash, resource_t * rsc,
	node_t * node, pe_working_set_t * data_set)
	{
	GHashTable *node_hash = NULL;
	const char *version = crm_element_value(data_set->input, XML_ATTR_CRM_VERSION);

	if (node) {
	node_hash = node->details->attrs;
	}

	if (rsc->xml) {
	xmlAttrPtr xIter = NULL;

	for (xIter = rsc->xml->properties; xIter; xIter = xIter->next) {
	const char prop_name = (const char )xIter->name;
	const char *prop_value = crm_element_value(rsc->xml, prop_name);

	add_hash_param(meta_hash, prop_name, prop_value);
	}
	}

	unpack_instance_attributes(data_set->input, rsc->xml, XML_TAG_META_SETS, node_hash,
	meta_hash, NULL, FALSE, data_set->now);

	if(version == NULL \|\| compare_version(version, "3.0.9") < 0) {
	/* populate from the regular attributes until the GUI can create
	* meta attributes
	*/
	unpack_instance_attributes(data_set->input, rsc->xml, XML_TAG_ATTR_SETS, node_hash,
	meta_hash, NULL, FALSE, data_set->now);
	}

	/* set anything else based on the parent */
	if (rsc->parent != NULL) {
	g_hash_table_foreach(rsc->parent->meta, dup_attr, meta_hash);
	}

	/* and finally check the defaults */
	unpack_instance_attributes(data_set->input, data_set->rsc_defaults, XML_TAG_META_SETS,
	node_hash, meta_hash, NULL, FALSE, data_set->now);
	}

	void
	get_rsc_attributes(GHashTable * meta_hash, resource_t * rsc,
	node_t * node, pe_working_set_t * data_set)
	{
	GHashTable *node_hash = NULL;

	if (node) {
	node_hash = node->details->attrs;
	}

	unpack_instance_attributes(data_set->input, rsc->xml, XML_TAG_ATTR_SETS, node_hash,
	meta_hash, NULL, FALSE, data_set->now);

	/* set anything else based on the parent */
	if (rsc->parent != NULL) {
	get_rsc_attributes(meta_hash, rsc->parent, node, data_set);

	} else {
	/* and finally check the defaults */
	unpack_instance_attributes(data_set->input, data_set->rsc_defaults, XML_TAG_ATTR_SETS,
	node_hash, meta_hash, NULL, FALSE, data_set->now);
	}
	}

	#if ENABLE_VERSIONED_ATTRS
	void
	pe_get_versioned_attributes(xmlNode * meta_hash, resource_t * rsc,
	node_t * node, pe_working_set_t * data_set)
	{
	GHashTable *node_hash = NULL;

	if (node) {
	node_hash = node->details->attrs;
	}

	pe_unpack_versioned_attributes(data_set->input, rsc->xml, XML_TAG_ATTR_SETS, node_hash,
	meta_hash, data_set->now);

	/* set anything else based on the parent */
	if (rsc->parent != NULL) {
	pe_get_versioned_attributes(meta_hash, rsc->parent, node, data_set);

	} else {
	/* and finally check the defaults */
	pe_unpack_versioned_attributes(data_set->input, data_set->rsc_defaults, XML_TAG_ATTR_SETS,
	node_hash, meta_hash, data_set->now);
	}
	}
	#endif

	static char *
	template_op_key(xmlNode * op)
	{
	const char *name = crm_element_value(op, "name");
	const char *role = crm_element_value(op, "role");
	char *key = NULL;

	if (role == NULL \|\| crm_str_eq(role, RSC_ROLE_STARTED_S, TRUE)
	\|\| crm_str_eq(role, RSC_ROLE_SLAVE_S, TRUE)) {
	role = RSC_ROLE_UNKNOWN_S;
	}

	key = crm_concat(name, role, '-');
	return key;
	}

	static gboolean
	unpack_template(xmlNode * xml_obj, xmlNode ** expanded_xml, pe_working_set_t * data_set)
	{
	xmlNode *cib_resources = NULL;
	xmlNode *template = NULL;
	xmlNode *new_xml = NULL;
	xmlNode *child_xml = NULL;
	xmlNode *rsc_ops = NULL;
	xmlNode *template_ops = NULL;
	const char *template_ref = NULL;
	const char *clone = NULL;
	const char *id = NULL;

	if (xml_obj == NULL) {
	pe_err("No resource object for template unpacking");
	return FALSE;
	}

	template_ref = crm_element_value(xml_obj, XML_CIB_TAG_RSC_TEMPLATE);
	if (template_ref == NULL) {
	return TRUE;
	}

	id = ID(xml_obj);
	if (id == NULL) {
	pe_err("'%s' object must have a id", crm_element_name(xml_obj));
	return FALSE;
	}

	if (crm_str_eq(template_ref, id, TRUE)) {
	pe_err("The resource object '%s' should not reference itself", id);
	return FALSE;
	}

	cib_resources = get_xpath_object("//"XML_CIB_TAG_RESOURCES, data_set->input, LOG_TRACE);
	if (cib_resources == NULL) {
	pe_err("No resources configured");
	return FALSE;
	}

	template = find_entity(cib_resources, XML_CIB_TAG_RSC_TEMPLATE, template_ref);
	if (template == NULL) {
	pe_err("No template named '%s'", template_ref);
	return FALSE;
	}

	new_xml = copy_xml(template);
	xmlNodeSetName(new_xml, xml_obj->name);
	crm_xml_replace(new_xml, XML_ATTR_ID, id);

	clone = crm_element_value(xml_obj, XML_RSC_ATTR_INCARNATION);
	if(clone) {
	crm_xml_add(new_xml, XML_RSC_ATTR_INCARNATION, clone);
	}

	template_ops = find_xml_node(new_xml, "operations", FALSE);

	for (child_xml = __xml_first_child_element(xml_obj); child_xml != NULL;
	child_xml = __xml_next_element(child_xml)) {
	xmlNode *new_child = NULL;

	new_child = add_node_copy(new_xml, child_xml);

	if (crm_str_eq((const char *)new_child->name, "operations", TRUE)) {
	rsc_ops = new_child;
	}
	}

	if (template_ops && rsc_ops) {
	xmlNode *op = NULL;
	GHashTable *rsc_ops_hash =
	g_hash_table_new_full(crm_str_hash, g_str_equal, g_hash_destroy_str, NULL);

	for (op = __xml_first_child_element(rsc_ops); op != NULL;
	op = __xml_next_element(op)) {

	char *key = template_op_key(op);

	g_hash_table_insert(rsc_ops_hash, key, op);
	}

	for (op = __xml_first_child_element(template_ops); op != NULL;
	op = __xml_next_element(op)) {

	char *key = template_op_key(op);

	if (g_hash_table_lookup(rsc_ops_hash, key) == NULL) {
	add_node_copy(rsc_ops, op);
	}

	free(key);
	}

	if (rsc_ops_hash) {
	g_hash_table_destroy(rsc_ops_hash);
	}

	free_xml(template_ops);
	}

	/free_xml(expanded_xml); */
	*expanded_xml = new_xml;

	/* Disable multi-level templates for now */
	/*if(unpack_template(new_xml, expanded_xml, data_set) == FALSE) {
	free_xml(*expanded_xml);
	*expanded_xml = NULL;

	return FALSE;
	} */

	return TRUE;
	}

	static gboolean
	add_template_rsc(xmlNode * xml_obj, pe_working_set_t * data_set)
	{
	const char *template_ref = NULL;
	const char *id = NULL;

	if (xml_obj == NULL) {
	pe_err("No resource object for processing resource list of template");
	return FALSE;
	}

	template_ref = crm_element_value(xml_obj, XML_CIB_TAG_RSC_TEMPLATE);
	if (template_ref == NULL) {
	return TRUE;
	}

	id = ID(xml_obj);
	if (id == NULL) {
	pe_err("'%s' object must have a id", crm_element_name(xml_obj));
	return FALSE;
	}

	if (crm_str_eq(template_ref, id, TRUE)) {
	pe_err("The resource object '%s' should not reference itself", id);
	return FALSE;
	}

	if (add_tag_ref(data_set->template_rsc_sets, template_ref, id) == FALSE) {
	return FALSE;
	}

	return TRUE;
	}

	static void
	handle_rsc_isolation(resource_t *rsc)
	{
	resource_t *top = uber_parent(rsc);
	resource_t *iso = rsc;
	const char *wrapper = NULL;
	const char *value;

	/* check for isolation wrapper mapping if the parent doesn't have one set
	* isolation mapping is enabled by default. For safety, we are allowing isolation
	* to be disabled by setting the meta attr, isolation=false. */
	value = g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_ISOLATION);
	if (top->isolation_wrapper == NULL && (value == NULL \|\| crm_is_true(value))) {
	if (g_hash_table_lookup(rsc->parameters, "pcmk_docker_image")) {
	wrapper = "docker-wrapper";
	}
	/* add more isolation technologies here as we expand */
	} else if (top->isolation_wrapper) {
	goto set_rsc_opts;
	}

	if (wrapper == NULL) {
	return;
	}

	/* if this is a cloned primitive/group, go head and set the isolation wrapper at
	* at the clone level. this is really the only sane thing to do in this situation.
	* This allows someone to clone an isolated resource without having to shuffle
	* around the isolation attributes to the clone parent */
	if (top == rsc->parent && pe_rsc_is_clone(top)) {
	iso = top;
	}

	iso->isolation_wrapper = wrapper;
	set_bit(top->flags, pe_rsc_unique);

	set_rsc_opts:
	pe_warn_once(pe_wo_isolation, "Support for 'isolation' resource meta-attribute"
	" is deprecated and will be removed in a future release"
	" (use bundle syntax instead)");

	clear_bit(rsc->flags, pe_rsc_allow_migrate);
	set_bit(rsc->flags, pe_rsc_unique);
	if (pe_rsc_is_clone(top)) {
	add_hash_param(rsc->meta, XML_RSC_ATTR_UNIQUE, XML_BOOLEAN_TRUE);
	}
	}

	static void
	check_deprecated_stonith(resource_t *rsc)
	{
	GHashTableIter iter;
	char *key;

	g_hash_table_iter_init(&iter, rsc->parameters);
	while (g_hash_table_iter_next(&iter, (gpointer *) &key, NULL)) {
	if (crm_starts_with(key, "pcmk_")) {
	char *cmp = key + 5; // the part after "pcmk_"

	if (!strcmp(cmp, "poweroff_action")) {
	pe_warn_once(pe_wo_poweroff,
	"Support for the 'pcmk_poweroff_action' stonith resource parameter"
	" is deprecated and will be removed in a future version"
	" (use 'pcmk_off_action' instead)");

	} else if (!strcmp(cmp, "arg_map")) {
	pe_warn_once(pe_wo_arg_map,
	"Support for the 'pcmk_arg_map' stonith resource parameter"
	" is deprecated and will be removed in a future version"
	" (use 'pcmk_host_argument' instead)");

	} else if (crm_ends_with(cmp, "_cmd")) {
	pe_warn_once(pe_wo_stonith_cmd,
	"Support for the 'pcmk_*_cmd' stonith resource parameters"
	" is deprecated and will be removed in a future version"
	" (use 'pcmk_*_action' instead)");
	}
	}
	}
	}

	gboolean
	common_unpack(xmlNode * xml_obj, resource_t ** rsc,
	resource_t * parent, pe_working_set_t * data_set)
	{
	bool isdefault = FALSE;
	xmlNode *expanded_xml = NULL;
	xmlNode *ops = NULL;
	resource_t *top = NULL;
	const char *value = NULL;
	const char rclass = NULL; / Look for this after any templates have been expanded */
	const char *id = crm_element_value(xml_obj, XML_ATTR_ID);
	int container_remote_node = 0;
	int baremetal_remote_node = 0;
	bool has_versioned_params = FALSE;

	crm_log_xml_trace(xml_obj, "Processing resource input...");

	if (id == NULL) {
	pe_err("Must specify id tag in <resource>");
	return FALSE;

	} else if (rsc == NULL) {
	pe_err("Nowhere to unpack resource into");
	return FALSE;

	}

	if (unpack_template(xml_obj, &expanded_xml, data_set) == FALSE) {
	return FALSE;
	}

	*rsc = calloc(1, sizeof(resource_t));
	(*rsc)->cluster = data_set;

	if (expanded_xml) {
	crm_log_xml_trace(expanded_xml, "Expanded resource...");
	(*rsc)->xml = expanded_xml;
	(*rsc)->orig_xml = xml_obj;

	} else {
	(*rsc)->xml = xml_obj;
	(*rsc)->orig_xml = NULL;
	}

	/* Do not use xml_obj from here on, use (rsc)->xml in case templates are involved /
	rclass = crm_element_value((*rsc)->xml, XML_AGENT_ATTR_CLASS);
	(*rsc)->parent = parent;

	ops = find_xml_node((*rsc)->xml, "operations", FALSE);
	(*rsc)->ops_xml = expand_idref(ops, data_set->input);

	(rsc)->variant = get_resource_type(crm_element_name((rsc)->xml));
	if ((*rsc)->variant == pe_unknown) {
	pe_err("Unknown resource type: %s", crm_element_name((*rsc)->xml));
	free(*rsc);
	return FALSE;
	}

	(*rsc)->parameters = crm_str_table_new();

	#if ENABLE_VERSIONED_ATTRS
	(*rsc)->versioned_parameters = create_xml_node(NULL, XML_TAG_RSC_VER_ATTRS);
	#endif

	(*rsc)->meta = crm_str_table_new();

	(*rsc)->allowed_nodes =
	g_hash_table_new_full(crm_str_hash, g_str_equal, NULL, g_hash_destroy_str);

	(*rsc)->known_on = g_hash_table_new_full(crm_str_hash, g_str_equal, NULL, g_hash_destroy_str);

	value = crm_element_value((*rsc)->xml, XML_RSC_ATTR_INCARNATION);
	if (value) {
	(*rsc)->id = crm_concat(id, value, ':');
	add_hash_param((*rsc)->meta, XML_RSC_ATTR_INCARNATION, value);

	} else {
	(*rsc)->id = strdup(id);
	}

	(rsc)->fns = &resource_class_functions[(rsc)->variant];
	pe_rsc_trace((*rsc), "Unpacking resource...");

	get_meta_attributes((rsc)->meta, rsc, NULL, data_set);
	get_rsc_attributes((rsc)->parameters, rsc, NULL, data_set);
	#if ENABLE_VERSIONED_ATTRS
	pe_get_versioned_attributes((rsc)->versioned_parameters, rsc, NULL, data_set);
	#endif

	(*rsc)->flags = 0;
	set_bit((*rsc)->flags, pe_rsc_runnable);
	set_bit((*rsc)->flags, pe_rsc_provisional);

	if (is_set(data_set->flags, pe_flag_is_managed_default)) {
	set_bit((*rsc)->flags, pe_rsc_managed);
	}

	(*rsc)->rsc_cons = NULL;
	(*rsc)->rsc_tickets = NULL;
	(*rsc)->actions = NULL;
	(*rsc)->role = RSC_ROLE_STOPPED;
	(*rsc)->next_role = RSC_ROLE_UNKNOWN;

	(*rsc)->recovery_type = recovery_stop_start;
	(*rsc)->stickiness = data_set->default_resource_stickiness;
	(*rsc)->migration_threshold = INFINITY;
	(*rsc)->failure_timeout = 0;

	value = g_hash_table_lookup((*rsc)->meta, XML_CIB_ATTR_PRIORITY);
	(*rsc)->priority = crm_parse_int(value, "0");
	(rsc)->effective_priority = (rsc)->priority;

	value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_NOTIFY);
	if (crm_is_true(value)) {
	set_bit((*rsc)->flags, pe_rsc_notify);
	}

	if (xml_contains_remote_node((*rsc)->xml)) {
	(*rsc)->is_remote_node = TRUE;
	if (g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_CONTAINER)) {
	container_remote_node = 1;
	} else {
	baremetal_remote_node = 1;
	}
	}

	value = g_hash_table_lookup((*rsc)->meta, XML_OP_ATTR_ALLOW_MIGRATE);
	#if ENABLE_VERSIONED_ATTRS
	has_versioned_params = xml_has_children((*rsc)->versioned_parameters);
	#endif
	if (crm_is_true(value) && has_versioned_params) {
	pe_rsc_trace((*rsc), "Migration is disabled for resources with versioned parameters");
	} else if (crm_is_true(value)) {
	set_bit((*rsc)->flags, pe_rsc_allow_migrate);
	} else if ((value == NULL) && baremetal_remote_node && !has_versioned_params) {
	/* by default, we want baremetal remote-nodes to be able
	* to float around the cluster without having to stop all the
	* resources within the remote-node before moving. Allowing
	* migration support enables this feature. If this ever causes
	* problems, migration support can be explicitly turned off with
	* allow-migrate=false.
	* We don't support migration for versioned resources, though. */
	set_bit((*rsc)->flags, pe_rsc_allow_migrate);
	}

	value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_MANAGED);
	if (value != NULL && safe_str_neq("default", value)) {
	gboolean bool_value = TRUE;

	crm_str_to_boolean(value, &bool_value);
	if (bool_value == FALSE) {
	clear_bit((*rsc)->flags, pe_rsc_managed);
	} else {
	set_bit((*rsc)->flags, pe_rsc_managed);
	}
	}

	value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_MAINTENANCE);
	if (value != NULL && safe_str_neq("default", value)) {
	gboolean bool_value = FALSE;

	crm_str_to_boolean(value, &bool_value);
	if (bool_value == TRUE) {
	clear_bit((*rsc)->flags, pe_rsc_managed);
	set_bit((*rsc)->flags, pe_rsc_maintenance);
	}

	} else if (is_set(data_set->flags, pe_flag_maintenance_mode)) {
	clear_bit((*rsc)->flags, pe_rsc_managed);
	set_bit((*rsc)->flags, pe_rsc_maintenance);
	}

	pe_rsc_trace((rsc), "Options for %s", (rsc)->id);

	handle_rsc_isolation(*rsc);

	top = uber_parent(*rsc);
	value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_UNIQUE);
	if (crm_is_true(value) \|\| pe_rsc_is_clone(top) == FALSE) {
	set_bit((*rsc)->flags, pe_rsc_unique);
	}

	value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_RESTART);
	if (safe_str_eq(value, "restart")) {
	(*rsc)->restart_type = pe_restart_restart;
	pe_rsc_trace((*rsc), "\tDependency restart handling: restart");

	} else {
	(*rsc)->restart_type = pe_restart_ignore;
	pe_rsc_trace((*rsc), "\tDependency restart handling: ignore");
	}

	value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_MULTIPLE);
	if (safe_str_eq(value, "stop_only")) {
	(*rsc)->recovery_type = recovery_stop_only;
	pe_rsc_trace((*rsc), "\tMultiple running resource recovery: stop only");

	} else if (safe_str_eq(value, "block")) {
	(*rsc)->recovery_type = recovery_block;
	pe_rsc_trace((*rsc), "\tMultiple running resource recovery: block");

	} else {
	(*rsc)->recovery_type = recovery_stop_start;
	pe_rsc_trace((*rsc), "\tMultiple running resource recovery: stop/start");
	}

	value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_STICKINESS);
	if (value != NULL && safe_str_neq("default", value)) {
	(*rsc)->stickiness = char2score(value);
	}

	value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_FAIL_STICKINESS);
	if (value != NULL && safe_str_neq("default", value)) {
	(*rsc)->migration_threshold = char2score(value);

	} else if (value == NULL) {
	/* Make a best-effort guess at a migration threshold for people with 0.6 configs
	* try with underscores and hyphens, from both the resource and global defaults section
	*/
	const char *legacy = NULL;

	legacy = g_hash_table_lookup((*rsc)->meta,
	"resource-failure-stickiness");
	if (legacy == NULL) {
	legacy = g_hash_table_lookup((*rsc)->meta,
	"resource_failure_stickiness");
	}
	if (legacy) {
	value = legacy;
	pe_warn_once(pe_wo_rsc_failstick,
	"Support for 'resource-failure-stickiness' resource meta-attribute"
	" is deprecated and will be removed in a future release"
	" (use 'migration-threshold' resource meta-attribute instead)");
	}

	legacy = g_hash_table_lookup(data_set->config_hash,
	"default-resource-failure-stickiness");
	if (legacy == NULL) {
	legacy = g_hash_table_lookup(data_set->config_hash,
	"default_resource_failure_stickiness");
	}
	if (legacy) {
	if (value == NULL) {
	value = legacy;
	}
	pe_warn_once(pe_wo_default_rscfs,
	"Support for 'default-resource-failure-stickiness' cluster option"
	" is deprecated and will be removed in a future release"
	" (use 'migration-threshold' in rsc_defaults instead)");
	}

	if (value) {
	int fail_sticky = char2score(value);

	if (fail_sticky == -INFINITY) {
	(*rsc)->migration_threshold = 1;
	pe_rsc_info((*rsc),
	"Set a migration threshold of %d for %s based on a failure-stickiness of %s",
	(rsc)->migration_threshold, (rsc)->id, value);

	} else if ((*rsc)->stickiness != 0 && fail_sticky != 0) {
	(rsc)->migration_threshold = (rsc)->stickiness / fail_sticky;
	if ((*rsc)->migration_threshold < 0) {
	/* Make sure it's positive */
	(rsc)->migration_threshold = 0 - (rsc)->migration_threshold;
	}
	(*rsc)->migration_threshold += 1;
	pe_rsc_info((*rsc),
	"Calculated a migration threshold for %s of %d based on a stickiness of %d/%s",
	(rsc)->id, (rsc)->migration_threshold, (*rsc)->stickiness, value);
	}
	}
	}

	if (safe_str_eq(rclass, PCMK_RESOURCE_CLASS_STONITH)) {
	set_bit(data_set->flags, pe_flag_have_stonith_resource);
	set_bit((*rsc)->flags, pe_rsc_fence_device);
	check_deprecated_stonith(*rsc);
	}

	value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_REQUIRES);

	handle_requires_pref:
	if (safe_str_eq(value, "nothing")) {

	} else if (safe_str_eq(value, "quorum")) {
	set_bit((*rsc)->flags, pe_rsc_needs_quorum);

	} else if (safe_str_eq(value, "unfencing")) {
	if (is_set((*rsc)->flags, pe_rsc_fence_device)) {
	crm_config_warn("%s is a fencing device but requires (un)fencing", (*rsc)->id);
	value = "quorum";
	isdefault = TRUE;
	goto handle_requires_pref;

	} else if (is_not_set(data_set->flags, pe_flag_stonith_enabled)) {
	crm_config_warn("%s requires (un)fencing but fencing is disabled", (*rsc)->id);
	value = "quorum";
	isdefault = TRUE;
	goto handle_requires_pref;

	} else {
	set_bit((*rsc)->flags, pe_rsc_needs_fencing);
	set_bit((*rsc)->flags, pe_rsc_needs_unfencing);
	}

	} else if (safe_str_eq(value, "fencing")) {
	set_bit((*rsc)->flags, pe_rsc_needs_fencing);
	if (is_not_set(data_set->flags, pe_flag_stonith_enabled)) {
	crm_config_warn("%s requires fencing but fencing is disabled", (*rsc)->id);
	}

	} else {
	if (value) {
	crm_config_err("Invalid value for %s->requires: %s%s",
	(*rsc)->id, value,
	is_set(data_set->flags, pe_flag_stonith_enabled) ? "" : " (stonith-enabled=false)");
	}

	isdefault = TRUE;
	if(is_set((*rsc)->flags, pe_rsc_fence_device)) {
	value = "quorum";

	} else if (((*rsc)->variant == pe_native)
	&& safe_str_eq(crm_element_value((*rsc)->xml, XML_AGENT_ATTR_CLASS),
	PCMK_RESOURCE_CLASS_OCF)
	&& safe_str_eq(crm_element_value((*rsc)->xml, XML_AGENT_ATTR_PROVIDER), "pacemaker")
	&& safe_str_eq(crm_element_value((*rsc)->xml, XML_ATTR_TYPE), "remote")
	) {
	value = "quorum";

	} else if (is_set(data_set->flags, pe_flag_enable_unfencing)) {
	value = "unfencing";

	} else if (is_set(data_set->flags, pe_flag_stonith_enabled)) {
	value = "fencing";

	} else if (data_set->no_quorum_policy == no_quorum_ignore) {
	value = "nothing";

	} else {
	value = "quorum";
	}
	goto handle_requires_pref;
	}

	pe_rsc_trace((*rsc), "\tRequired to start: %s%s", value, isdefault?" (default)":"");
	value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_FAIL_TIMEOUT);
	if (value != NULL) {
	/* call crm_get_msec() and convert back to seconds */
	(*rsc)->failure_timeout = (crm_get_msec(value) / 1000);
	}

	if (baremetal_remote_node) {
	value = g_hash_table_lookup((*rsc)->parameters, XML_REMOTE_ATTR_RECONNECT_INTERVAL);
	if (value) {
	/* reconnect delay works by setting failure_timeout and preventing the
	* connection from starting until the failure is cleared. */
	(*rsc)->remote_reconnect_interval = (crm_get_msec(value) / 1000);
	/* we want to override any default failure_timeout in use when remote
	* reconnect_interval is in use. */
	(rsc)->failure_timeout = (rsc)->remote_reconnect_interval;
	}
	}

	get_target_role(rsc, &((rsc)->next_role));
	pe_rsc_trace((*rsc), "\tDesired next state: %s",
	(rsc)->next_role != RSC_ROLE_UNKNOWN ? role2text((rsc)->next_role) : "default");

	if ((rsc)->fns->unpack(rsc, data_set) == FALSE) {
	return FALSE;
	}

	if (is_set(data_set->flags, pe_flag_symmetric_cluster)) {
	// This tag must stay exactly the same because it is tested elsewhere
	resource_location(*rsc, NULL, 0, "symmetric_default", data_set);
	} else if (container_remote_node) {
	/* remote resources tied to a container resource must always be allowed
	* to opt-in to the cluster. Whether the connection resource is actually
	* allowed to be placed on a node is dependent on the container resource */
	resource_location(*rsc, NULL, 0, "remote_connection_default", data_set);
	}

	pe_rsc_trace((*rsc), "\tAction notification: %s",
	is_set((*rsc)->flags, pe_rsc_notify) ? "required" : "not required");

	(*rsc)->utilization = crm_str_table_new();

	unpack_instance_attributes(data_set->input, (*rsc)->xml, XML_TAG_UTILIZATION, NULL,
	(*rsc)->utilization, NULL, FALSE, data_set->now);

	/* data_set->resources = g_list_append(data_set->resources, (rsc)); /

	if (expanded_xml) {
	if (add_template_rsc(xml_obj, data_set) == FALSE) {
	return FALSE;
	}
	}
	return TRUE;
	}

	void
	common_update_score(resource_t * rsc, const char *id, int score)
	{
	node_t *node = NULL;

	node = pe_hash_table_lookup(rsc->allowed_nodes, id);
	if (node != NULL) {
	pe_rsc_trace(rsc, "Updating score for %s on %s: %d + %d", rsc->id, id, node->weight, score);
	node->weight = merge_weights(node->weight, score);
	}

	if (rsc->children) {
	GListPtr gIter = rsc->children;

	for (; gIter != NULL; gIter = gIter->next) {
	resource_t child_rsc = (resource_t ) gIter->data;

	common_update_score(child_rsc, id, score);
	}
	}
	}

	gboolean
	is_parent(resource_t child, resource_t rsc)
	{
	resource_t *parent = child;

	if (parent == NULL \|\| rsc == NULL) {
	return FALSE;
	}
	while (parent->parent != NULL) {
	if (parent->parent == rsc) {
	return TRUE;
	}
	parent = parent->parent;
	}
	return FALSE;
	}

	resource_t *
	uber_parent(resource_t * rsc)
	{
	resource_t *parent = rsc;

	if (parent == NULL) {
	return NULL;
	}
	while (parent->parent != NULL && parent->parent->variant != pe_container) {
	parent = parent->parent;
	}
	return parent;
	}

	void
	common_free(resource_t * rsc)
	{
	if (rsc == NULL) {
	return;
	}

	pe_rsc_trace(rsc, "Freeing %s %d", rsc->id, rsc->variant);

	g_list_free(rsc->rsc_cons);
	g_list_free(rsc->rsc_cons_lhs);
	g_list_free(rsc->rsc_tickets);
	g_list_free(rsc->dangling_migrations);

	if (rsc->parameters != NULL) {
	g_hash_table_destroy(rsc->parameters);
	}
	#if ENABLE_VERSIONED_ATTRS
	if (rsc->versioned_parameters != NULL) {
	free_xml(rsc->versioned_parameters);
	}
	#endif
	if (rsc->meta != NULL) {
	g_hash_table_destroy(rsc->meta);
	}
	if (rsc->utilization != NULL) {
	g_hash_table_destroy(rsc->utilization);
	}

	if (rsc->parent == NULL && is_set(rsc->flags, pe_rsc_orphan)) {
	free_xml(rsc->xml);
	rsc->xml = NULL;
	free_xml(rsc->orig_xml);
	rsc->orig_xml = NULL;

	/* if rsc->orig_xml, then rsc->xml is an expanded xml from a template */
	} else if (rsc->orig_xml) {
	free_xml(rsc->xml);
	rsc->xml = NULL;
	}
	if (rsc->running_on) {
	g_list_free(rsc->running_on);
	rsc->running_on = NULL;
	}
	if (rsc->known_on) {
	g_hash_table_destroy(rsc->known_on);
	rsc->known_on = NULL;
	}
	if (rsc->actions) {
	g_list_free(rsc->actions);
	rsc->actions = NULL;
	}
	if (rsc->allowed_nodes) {
	g_hash_table_destroy(rsc->allowed_nodes);
	rsc->allowed_nodes = NULL;
	}
	g_list_free(rsc->fillers);
	g_list_free(rsc->rsc_location);
	pe_rsc_trace(rsc, "Resource freed");
	free(rsc->id);
	free(rsc->clone_name);
	free(rsc->allocated_to);
	free(rsc->variant_opaque);
	free(rsc->pending_task);
	free(rsc);
	}

	/*!
	* \brief
	* \internal Find a node (and optionally count all) where resource is active
	*
	* \param[in] rsc Resource to check
	* \param[out] count_all If not NULL, will be set to count of active nodes
	* \param[out] count_clean If not NULL, will be set to count of clean nodes
	*
	* \return An active node (or NULL if resource is not active anywhere)
	*
	* \note The order of preference is: an active node that is the resource's
	* partial migration source; if the resource's "requires" is "quorum" or
	* "nothing", the first active node in the list that is clean and online;
	* the first active node in the list.
	*/
	pe_node_t *
	pe__find_active_on(const resource_t rsc, unsigned int count_all,
	unsigned int *count_clean)
	{
	pe_node_t *active = NULL;
	pe_node_t *node = NULL;
	bool keep_looking = FALSE;
	bool is_happy = FALSE;

	if (count_all) {
	*count_all = 0;
	}
	if (count_clean) {
	*count_clean = 0;
	}
	if (rsc == NULL) {
	return NULL;
	}

	for (GList *node_iter = rsc->running_on; node_iter != NULL;
	node_iter = node_iter->next) {

	node = node_iter->data;
	keep_looking = FALSE;

	is_happy = node->details->online && !node->details->unclean;

	if (count_all) {
	++*count_all;
	}
	if (count_clean && is_happy) {
	++*count_clean;
	}
	if (count_all \|\| count_clean) {
	// If we're counting, we need to go through entire list
	keep_looking = TRUE;
	}

	if (rsc->partial_migration_source != NULL) {
	if (node->details == rsc->partial_migration_source->details) {
	// This is the migration source
	active = node;
	} else {
	keep_looking = TRUE;
	}
	} else if (is_not_set(rsc->flags, pe_rsc_needs_fencing)) {
	if (is_happy && (!active \|\| !active->details->online
	\|\| active->details->unclean)) {
	// This is the first clean node
	active = node;
	} else {
	keep_looking = TRUE;
	}
	}
	if (active == NULL) {
	// This is first node in list
	active = node;
	}

	if (keep_looking == FALSE) {
	// Don't waste time iterating if we don't have to
	break;
	}
	}
	return active;
	}

	/*!
	* \brief
	* \internal Find and count active nodes according to "requires"
	*
	* \param[in] rsc Resource to check
	* \param[out] count If not NULL, will be set to count of active nodes
	*
	* \return An active node (or NULL if resource is not active anywhere)
	*
	* \note This is a convenience wrapper for pe__find_active_on() where the count
	* of all active nodes or only clean active nodes is desired according to
	* the "requires" meta-attribute.
	*/
	pe_node_t *
	pe__find_active_requires(const resource_t rsc, unsigned int count)
	{
	if (rsc && is_not_set(rsc->flags, pe_rsc_needs_fencing)) {
	return pe__find_active_on(rsc, NULL, count);
	}
	return pe__find_active_on(rsc, count, NULL);
	}

	void
	pe__count_common(pe_resource_t *rsc)
	{
	if (rsc->children != NULL) {
	for (GList *item = rsc->children; item != NULL; item = item->next) {
	((pe_resource_t *) item->data)->fns->count(item->data);
	}

	} else if (is_not_set(rsc->flags, pe_rsc_orphan)
	\|\| (rsc->role > RSC_ROLE_STOPPED)) {
	rsc->cluster->ninstances++;
	if (pe__resource_is_disabled(rsc)) {
	rsc->cluster->disabled_resources++;
	}
	if (is_set(rsc->flags, pe_rsc_block)) {
	rsc->cluster->blocked_resources++;
	}
	}
	}

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