main.c
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main.c
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	/*
	* Copyright 2009-2019 the Pacemaker project contributors
	*
	* The version control history for this file may have further details.
	*
	* This source code is licensed under the GNU General Public License version 2
	* or later (GPLv2+) WITHOUT ANY WARRANTY.
	*/

	#include <crm_internal.h>

	#include <sys/param.h>
	#include <stdio.h>
	#include <sys/types.h>
	#include <sys/stat.h>
	#include <unistd.h>
	#include <sys/utsname.h>

	#include <stdlib.h>
	#include <errno.h>
	#include <fcntl.h>

	#include <crm/crm.h>
	#include <crm/msg_xml.h>
	#include <crm/common/ipc.h>
	#include <crm/common/ipcs.h>
	#include <crm/cluster/internal.h>

	#include <crm/stonith-ng.h>
	#include <crm/fencing/internal.h>
	#include <crm/common/xml.h>

	#include <crm/common/mainloop.h>

	#include <crm/cib/internal.h>
	#include <crm/pengine/status.h>
	#include <allocate.h>

	#include <internal.h>

	#include <standalone_config.h>

	char *stonith_our_uname = NULL;
	char *stonith_our_uuid = NULL;
	long stonith_watchdog_timeout_ms = 0;

	GMainLoop *mainloop = NULL;

	gboolean stand_alone = FALSE;
	gboolean no_cib_connect = FALSE;
	gboolean stonith_shutdown_flag = FALSE;

	qb_ipcs_service_t *ipcs = NULL;
	xmlNode *local_cib = NULL;
	static pe_working_set_t *fenced_data_set = NULL;

	static cib_t *cib_api = NULL;
	static void *cib_library = NULL;

	static void stonith_shutdown(int nsig);
	static void stonith_cleanup(void);

	static int32_t
	st_ipc_accept(qb_ipcs_connection_t * c, uid_t uid, gid_t gid)
	{
	if (stonith_shutdown_flag) {
	crm_info("Ignoring new client [%d] during shutdown", crm_ipcs_client_pid(c));
	return -EPERM;
	}

	if (crm_client_new(c, uid, gid) == NULL) {
	return -EIO;
	}
	return 0;
	}

	static void
	st_ipc_created(qb_ipcs_connection_t * c)
	{
	crm_trace("Connection created for %p", c);
	}

	/* Exit code means? */
	static int32_t
	st_ipc_dispatch(qb_ipcs_connection_t * qbc, void *data, size_t size)
	{
	uint32_t id = 0;
	uint32_t flags = 0;
	int call_options = 0;
	xmlNode *request = NULL;
	crm_client_t *c = crm_client_get(qbc);
	const char *op = NULL;

	if (c == NULL) {
	crm_info("Invalid client: %p", qbc);
	return 0;
	}

	request = crm_ipcs_recv(c, data, size, &id, &flags);
	if (request == NULL) {
	crm_ipcs_send_ack(c, id, flags, "nack", __FUNCTION__, __LINE__);
	return 0;
	}


	op = crm_element_value(request, F_CRM_TASK);
	if(safe_str_eq(op, CRM_OP_RM_NODE_CACHE)) {
	crm_xml_add(request, F_TYPE, T_STONITH_NG);
	crm_xml_add(request, F_STONITH_OPERATION, op);
	crm_xml_add(request, F_STONITH_CLIENTID, c->id);
	crm_xml_add(request, F_STONITH_CLIENTNAME, crm_client_name(c));
	crm_xml_add(request, F_STONITH_CLIENTNODE, stonith_our_uname);

	send_cluster_message(NULL, crm_msg_stonith_ng, request, FALSE);
	free_xml(request);
	return 0;
	}

	if (c->name == NULL) {
	const char *value = crm_element_value(request, F_STONITH_CLIENTNAME);

	if (value == NULL) {
	value = "unknown";
	}
	c->name = crm_strdup_printf("%s.%u", value, c->pid);
	}

	crm_element_value_int(request, F_STONITH_CALLOPTS, &call_options);
	crm_trace("Flags %u/%u for command %u from %s", flags, call_options, id, crm_client_name(c));

	if (is_set(call_options, st_opt_sync_call)) {
	CRM_ASSERT(flags & crm_ipc_client_response);
	CRM_LOG_ASSERT(c->request_id == 0); /* This means the client has two synchronous events in-flight */
	c->request_id = id; /* Reply only to the last one */
	}

	crm_xml_add(request, F_STONITH_CLIENTID, c->id);
	crm_xml_add(request, F_STONITH_CLIENTNAME, crm_client_name(c));
	crm_xml_add(request, F_STONITH_CLIENTNODE, stonith_our_uname);

	crm_log_xml_trace(request, "Client[inbound]");
	stonith_command(c, id, flags, request, NULL);

	free_xml(request);
	return 0;
	}

	/* Error code means? */
	static int32_t
	st_ipc_closed(qb_ipcs_connection_t * c)
	{
	crm_client_t *client = crm_client_get(c);

	if (client == NULL) {
	return 0;
	}

	crm_trace("Connection %p closed", c);
	crm_client_destroy(client);

	/* 0 means: yes, go ahead and destroy the connection */
	return 0;
	}

	static void
	st_ipc_destroy(qb_ipcs_connection_t * c)
	{
	crm_trace("Connection %p destroyed", c);
	st_ipc_closed(c);
	}

	static void
	stonith_peer_callback(xmlNode * msg, void *private_data)
	{
	const char *remote_peer = crm_element_value(msg, F_ORIG);
	const char *op = crm_element_value(msg, F_STONITH_OPERATION);

	if (crm_str_eq(op, "poke", TRUE)) {
	return;
	}

	crm_log_xml_trace(msg, "Peer[inbound]");
	stonith_command(NULL, 0, 0, msg, remote_peer);
	}

	#if SUPPORT_HEARTBEAT
	static void
	stonith_peer_hb_callback(HA_Message * msg, void *private_data)
	{
	xmlNode *xml = convert_ha_message(NULL, msg, __FUNCTION__);

	stonith_peer_callback(xml, private_data);
	free_xml(xml);
	}

	static void
	stonith_peer_hb_destroy(gpointer user_data)
	{
	if (stonith_shutdown_flag) {
	crm_info("Heartbeat disconnection complete... exiting");
	} else {
	crm_err("Heartbeat connection lost! Exiting.");
	}
	stonith_shutdown(0);
	}
	#endif

	#if SUPPORT_COROSYNC
	static void
	stonith_peer_ais_callback(cpg_handle_t handle,
	const struct cpg_name *groupName,
	uint32_t nodeid, uint32_t pid, void *msg, size_t msg_len)
	{
	uint32_t kind = 0;
	xmlNode *xml = NULL;
	const char *from = NULL;
	char *data = pcmk_message_common_cs(handle, nodeid, pid, msg, &kind, &from);

	if(data == NULL) {
	return;
	}
	if (kind == crm_class_cluster) {
	xml = string2xml(data);
	if (xml == NULL) {
	crm_err("Invalid XML: '%.120s'", data);
	free(data);
	return;
	}
	crm_xml_add(xml, F_ORIG, from);
	/* crm_xml_add_int(xml, F_SEQ, wrapper->id); */
	stonith_peer_callback(xml, NULL);
	}

	free_xml(xml);
	free(data);
	return;
	}

	static void
	stonith_peer_cs_destroy(gpointer user_data)
	{
	crm_err("Corosync connection terminated");
	stonith_shutdown(0);
	}
	#endif

	void
	do_local_reply(xmlNode * notify_src, const char *client_id, gboolean sync_reply, gboolean from_peer)
	{
	/* send callback to originating child */
	crm_client_t *client_obj = NULL;
	int local_rc = pcmk_ok;

	crm_trace("Sending response");
	client_obj = crm_client_get_by_id(client_id);

	crm_trace("Sending callback to request originator");
	if (client_obj == NULL) {
	local_rc = -1;
	crm_trace("No client to sent the response to. F_STONITH_CLIENTID not set.");

	} else {
	int rid = 0;

	if (sync_reply) {
	CRM_LOG_ASSERT(client_obj->request_id);

	rid = client_obj->request_id;
	client_obj->request_id = 0;

	crm_trace("Sending response %d to %s %s",
	rid, client_obj->name, from_peer ? "(originator of delegated request)" : "");

	} else {
	crm_trace("Sending an event to %s %s",
	client_obj->name, from_peer ? "(originator of delegated request)" : "");
	}

	local_rc = crm_ipcs_send(client_obj, rid, notify_src, sync_reply?crm_ipc_flags_none:crm_ipc_server_event);
	}

	if (local_rc < pcmk_ok && client_obj != NULL) {
	crm_warn("%sSync reply to %s failed: %s",
	sync_reply ? "" : "A-",
	client_obj ? client_obj->name : "<unknown>", pcmk_strerror(local_rc));
	}
	}

	long long
	get_stonith_flag(const char *name)
	{
	if (safe_str_eq(name, T_STONITH_NOTIFY_FENCE)) {
	return st_callback_notify_fence;

	} else if (safe_str_eq(name, STONITH_OP_DEVICE_ADD)) {
	return st_callback_device_add;

	} else if (safe_str_eq(name, STONITH_OP_DEVICE_DEL)) {
	return st_callback_device_del;

	} else if (safe_str_eq(name, T_STONITH_NOTIFY_HISTORY)) {
	return st_callback_notify_history;

	} else if (safe_str_eq(name, T_STONITH_NOTIFY_HISTORY_SYNCED)) {
	return st_callback_notify_history_synced;

	}
	return st_callback_unknown;
	}

	static void
	stonith_notify_client(gpointer key, gpointer value, gpointer user_data)
	{

	xmlNode *update_msg = user_data;
	crm_client_t *client = value;
	const char *type = NULL;

	CRM_CHECK(client != NULL, return);
	CRM_CHECK(update_msg != NULL, return);

	type = crm_element_value(update_msg, F_SUBTYPE);
	CRM_CHECK(type != NULL, crm_log_xml_err(update_msg, "notify"); return);

	if (client->ipcs == NULL) {
	crm_trace("Skipping client with NULL channel");
	return;
	}

	if (client->options & get_stonith_flag(type)) {
	int rc = crm_ipcs_send(client, 0, update_msg, crm_ipc_server_event \| crm_ipc_server_error);

	if (rc <= 0) {
	crm_warn("%s notification of client %s.%.6s failed: %s (%d)",
	type, crm_client_name(client), client->id, pcmk_strerror(rc), rc);
	} else {
	crm_trace("Sent %s notification to client %s.%.6s", type, crm_client_name(client),
	client->id);
	}
	}
	}

	void
	do_stonith_async_timeout_update(const char client_id, const char call_id, int timeout)
	{
	crm_client_t *client = NULL;
	xmlNode *notify_data = NULL;

	if (!timeout \|\| !call_id \|\| !client_id) {
	return;
	}

	client = crm_client_get_by_id(client_id);
	if (!client) {
	return;
	}

	notify_data = create_xml_node(NULL, T_STONITH_TIMEOUT_VALUE);
	crm_xml_add(notify_data, F_TYPE, T_STONITH_TIMEOUT_VALUE);
	crm_xml_add(notify_data, F_STONITH_CALLID, call_id);
	crm_xml_add_int(notify_data, F_STONITH_TIMEOUT, timeout);

	crm_trace("timeout update is %d for client %s and call id %s", timeout, client_id, call_id);

	if (client) {
	crm_ipcs_send(client, 0, notify_data, crm_ipc_server_event);
	}

	free_xml(notify_data);
	}

	void
	do_stonith_notify(int options, const char type, int result, xmlNode data)
	{
	/* TODO: Standardize the contents of data */
	xmlNode *update_msg = create_xml_node(NULL, "notify");

	CRM_CHECK(type != NULL,;);

	crm_xml_add(update_msg, F_TYPE, T_STONITH_NOTIFY);
	crm_xml_add(update_msg, F_SUBTYPE, type);
	crm_xml_add(update_msg, F_STONITH_OPERATION, type);
	crm_xml_add_int(update_msg, F_STONITH_RC, result);

	if (data != NULL) {
	add_message_xml(update_msg, F_STONITH_CALLDATA, data);
	}

	crm_trace("Notifying clients");
	g_hash_table_foreach(client_connections, stonith_notify_client, update_msg);
	free_xml(update_msg);
	crm_trace("Notify complete");
	}

	static void
	do_stonith_notify_config(int options, const char *op, int rc,
	const char *desc, int active)
	{
	xmlNode *notify_data = create_xml_node(NULL, op);

	CRM_CHECK(notify_data != NULL, return);

	crm_xml_add(notify_data, F_STONITH_DEVICE, desc);
	crm_xml_add_int(notify_data, F_STONITH_ACTIVE, active);

	do_stonith_notify(options, op, rc, notify_data);
	free_xml(notify_data);
	}

	void
	do_stonith_notify_device(int options, const char op, int rc, const char desc)
	{
	do_stonith_notify_config(options, op, rc, desc, g_hash_table_size(device_list));
	}

	void
	do_stonith_notify_level(int options, const char op, int rc, const char desc)
	{
	do_stonith_notify_config(options, op, rc, desc, g_hash_table_size(topology));
	}

	static void
	topology_remove_helper(const char *node, int level)
	{
	int rc;
	char *desc = NULL;
	xmlNode *data = create_xml_node(NULL, XML_TAG_FENCING_LEVEL);

	crm_xml_add(data, F_STONITH_ORIGIN, __FUNCTION__);
	crm_xml_add_int(data, XML_ATTR_STONITH_INDEX, level);
	crm_xml_add(data, XML_ATTR_STONITH_TARGET, node);

	rc = stonith_level_remove(data, &desc);
	do_stonith_notify_level(0, STONITH_OP_LEVEL_DEL, rc, desc);

	free_xml(data);
	free(desc);
	}

	static void
	remove_cib_device(xmlXPathObjectPtr xpathObj)
	{
	int max = numXpathResults(xpathObj), lpc = 0;

	for (lpc = 0; lpc < max; lpc++) {
	const char *rsc_id = NULL;
	const char *standard = NULL;
	xmlNode *match = getXpathResult(xpathObj, lpc);

	CRM_LOG_ASSERT(match != NULL);
	if(match != NULL) {
	standard = crm_element_value(match, XML_AGENT_ATTR_CLASS);
	}

	if (safe_str_neq(standard, PCMK_RESOURCE_CLASS_STONITH)) {
	continue;
	}

	rsc_id = crm_element_value(match, XML_ATTR_ID);

	stonith_device_remove(rsc_id, TRUE);
	}
	}

	static void
	handle_topology_change(xmlNode *match, bool remove)
	{
	int rc;
	char *desc = NULL;

	CRM_CHECK(match != NULL, return);
	crm_trace("Updating %s", ID(match));

	if(remove) {
	int index = 0;
	char *key = stonith_level_key(match, -1);

	crm_element_value_int(match, XML_ATTR_STONITH_INDEX, &index);
	topology_remove_helper(key, index);
	free(key);
	}

	rc = stonith_level_register(match, &desc);
	do_stonith_notify_level(0, STONITH_OP_LEVEL_ADD, rc, desc);

	free(desc);
	}

	static void
	remove_fencing_topology(xmlXPathObjectPtr xpathObj)
	{
	int max = numXpathResults(xpathObj), lpc = 0;

	for (lpc = 0; lpc < max; lpc++) {
	xmlNode *match = getXpathResult(xpathObj, lpc);

	CRM_LOG_ASSERT(match != NULL);
	if (match && crm_element_value(match, XML_DIFF_MARKER)) {
	/* Deletion */
	int index = 0;
	char *target = stonith_level_key(match, -1);

	crm_element_value_int(match, XML_ATTR_STONITH_INDEX, &index);
	if (target == NULL) {
	crm_err("Invalid fencing target in element %s", ID(match));

	} else if (index <= 0) {
	crm_err("Invalid level for %s in element %s", target, ID(match));

	} else {
	topology_remove_helper(target, index);
	}
	/* } else { Deal with modifications during the 'addition' stage */
	}
	}
	}

	static void
	register_fencing_topology(xmlXPathObjectPtr xpathObj)
	{
	int max = numXpathResults(xpathObj), lpc = 0;

	for (lpc = 0; lpc < max; lpc++) {
	xmlNode *match = getXpathResult(xpathObj, lpc);

	handle_topology_change(match, TRUE);
	}
	}

	/* Fencing
	<diff crm_feature_set="3.0.6">
	<diff-removed>
	<fencing-topology>
	<fencing-level id="f-p1.1" target="pcmk-1" index="1" devices="poison-pill" __crm_diff_marker__="removed:top"/>
	<fencing-level id="f-p1.2" target="pcmk-1" index="2" devices="power" __crm_diff_marker__="removed:top"/>
	<fencing-level devices="disk,network" id="f-p2.1"/>
	</fencing-topology>
	</diff-removed>
	<diff-added>
	<fencing-topology>
	<fencing-level id="f-p.1" target="pcmk-1" index="1" devices="poison-pill" __crm_diff_marker__="added:top"/>
	<fencing-level id="f-p2.1" target="pcmk-2" index="1" devices="disk,something"/>
	<fencing-level id="f-p3.1" target="pcmk-2" index="2" devices="power" __crm_diff_marker__="added:top"/>
	</fencing-topology>
	</diff-added>
	</diff>
	*/

	static void
	fencing_topology_init()
	{
	xmlXPathObjectPtr xpathObj = NULL;
	const char *xpath = "//" XML_TAG_FENCING_LEVEL;

	crm_trace("Full topology refresh");

	if(topology) {
	g_hash_table_destroy(topology);
	topology = g_hash_table_new_full(crm_str_hash, g_str_equal, NULL, free_topology_entry);
	}

	/* Grab everything */
	xpathObj = xpath_search(local_cib, xpath);
	register_fencing_topology(xpathObj);

	freeXpathObject(xpathObj);
	}

	#define rsc_name(x) x->clone_name?x->clone_name:x->id

	/*!
	* \internal
	* \brief Check whether our uname is in a resource's allowed node list
	*
	* \param[in] rsc Resource to check
	*
	* \return Pointer to node object if found, NULL otherwise
	*/
	static node_t *
	our_node_allowed_for(resource_t *rsc)
	{
	GHashTableIter iter;
	node_t *node = NULL;

	if (rsc && stonith_our_uname) {
	g_hash_table_iter_init(&iter, rsc->allowed_nodes);
	while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
	if (node && strcmp(node->details->uname, stonith_our_uname) == 0) {
	break;
	}
	node = NULL;
	}
	}
	return node;
	}

	/*!
	* \internal
	* \brief If a resource or any of its children are STONITH devices, update their
	* definitions given a cluster working set.
	*
	* \param[in] rsc Resource to check
	* \param[in] data_set Cluster working set with device information
	*/
	static void cib_device_update(resource_t rsc, pe_working_set_t data_set)
	{
	node_t *node = NULL;
	const char *value = NULL;
	const char *rclass = NULL;
	node_t *parent = NULL;
	gboolean remove = TRUE;

	/* If this is a complex resource, check children rather than this resource itself.
	* TODO: Mark each installed device and remove if untouched when this process finishes.
	*/
	if(rsc->children) {
	GListPtr gIter = NULL;
	for (gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
	cib_device_update(gIter->data, data_set);
	if(pe_rsc_is_clone(rsc)) {
	crm_trace("Only processing one copy of the clone %s", rsc->id);
	break;
	}
	}
	return;
	}

	/* We only care about STONITH resources. */
	rclass = crm_element_value(rsc->xml, XML_AGENT_ATTR_CLASS);
	if (safe_str_neq(rclass, PCMK_RESOURCE_CLASS_STONITH)) {
	return;
	}

	/* If this STONITH resource is disabled, just remove it. */
	value = g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_TARGET_ROLE);
	if (safe_str_eq(value, RSC_STOPPED)) {
	crm_info("Device %s has been disabled", rsc->id);
	goto update_done;
	}

	/* Check whether our node is allowed for this resource (and its parent if in a group) */
	node = our_node_allowed_for(rsc);
	if (rsc->parent && (rsc->parent->variant == pe_group)) {
	parent = our_node_allowed_for(rsc->parent);
	}

	if(node == NULL) {
	/* Our node is disallowed, so remove the device */
	GHashTableIter iter;

	crm_info("Device %s has been disabled on %s: unknown", rsc->id, stonith_our_uname);
	g_hash_table_iter_init(&iter, rsc->allowed_nodes);
	while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
	crm_trace("Available: %s = %d", node->details->uname, node->weight);
	}

	goto update_done;

	} else if(node->weight < 0 \|\| (parent && parent->weight < 0)) {
	/* Our node (or its group) is disallowed by score, so remove the device */
	char *score = score2char((node->weight < 0) ? node->weight : parent->weight);

	crm_info("Device %s has been disabled on %s: score=%s", rsc->id, stonith_our_uname, score);
	free(score);

	goto update_done;

	} else {
	/* Our node is allowed, so update the device information */
	xmlNode *data;
	GHashTableIter gIter;
	stonith_key_value_t *params = NULL;

	const char *name = NULL;
	const char *agent = crm_element_value(rsc->xml, XML_EXPR_ATTR_TYPE);
	const char *rsc_provides = NULL;

	crm_debug("Device %s is allowed on %s: score=%d", rsc->id, stonith_our_uname, node->weight);
	get_rsc_attributes(rsc->parameters, rsc, node, data_set);
	get_meta_attributes(rsc->meta, rsc, node, data_set);

	rsc_provides = g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_PROVIDES);

	g_hash_table_iter_init(&gIter, rsc->parameters);
	while (g_hash_table_iter_next(&gIter, (gpointer ) & name, (gpointer ) & value)) {
	if (!name \|\| !value) {
	continue;
	}
	params = stonith_key_value_add(params, name, value);
	crm_trace(" %s=%s", name, value);
	}

	remove = FALSE;
	data = create_device_registration_xml(rsc_name(rsc), st_namespace_any,
	agent, params, rsc_provides);
	stonith_device_register(data, NULL, TRUE);

	stonith_key_value_freeall(params, 1, 1);
	free_xml(data);
	}

	update_done:

	if(remove && g_hash_table_lookup(device_list, rsc_name(rsc))) {
	stonith_device_remove(rsc_name(rsc), TRUE);
	}
	}

	extern xmlNode do_calculations(pe_working_set_t data_set, xmlNode * xml_input, crm_time_t * now);

	/*!
	* \internal
	* \brief Update all STONITH device definitions based on current CIB
	*/
	static void
	cib_devices_update(void)
	{
	GListPtr gIter = NULL;

	crm_info("Updating devices to version %s.%s.%s",
	crm_element_value(local_cib, XML_ATTR_GENERATION_ADMIN),
	crm_element_value(local_cib, XML_ATTR_GENERATION),
	crm_element_value(local_cib, XML_ATTR_NUMUPDATES));

	CRM_ASSERT(fenced_data_set != NULL);
	fenced_data_set->input = local_cib;
	fenced_data_set->now = crm_time_new(NULL);
	fenced_data_set->flags \|= pe_flag_quick_location;
	fenced_data_set->localhost = stonith_our_uname;

	cluster_status(fenced_data_set);
	do_calculations(fenced_data_set, NULL, NULL);

	for (gIter = fenced_data_set->resources; gIter != NULL; gIter = gIter->next) {
	cib_device_update(gIter->data, fenced_data_set);
	}
	fenced_data_set->input = NULL; // Wasn't a copy, so don't let API free it
	pe_reset_working_set(fenced_data_set);
	}

	static void
	update_cib_stonith_devices_v2(const char event, xmlNode msg)
	{
	xmlNode *change = NULL;
	char *reason = NULL;
	bool needs_update = FALSE;
	xmlNode *patchset = get_message_xml(msg, F_CIB_UPDATE_RESULT);

	for (change = __xml_first_child(patchset); change != NULL; change = __xml_next(change)) {
	const char *op = crm_element_value(change, XML_DIFF_OP);
	const char *xpath = crm_element_value(change, XML_DIFF_PATH);
	const char *shortpath = NULL;

	if ((op == NULL) \|\|
	(strcmp(op, "move") == 0) \|\|
	strstr(xpath, "/"XML_CIB_TAG_STATUS)) {
	continue;
	} else if (safe_str_eq(op, "delete") && strstr(xpath, "/"XML_CIB_TAG_RESOURCE)) {
	const char *rsc_id = NULL;
	char *search = NULL;
	char *mutable = NULL;

	if (strstr(xpath, XML_TAG_ATTR_SETS) \|\|
	strstr(xpath, XML_TAG_META_SETS)) {
	needs_update = TRUE;
	reason = strdup("(meta) attribute deleted from resource");
	break;
	}
	mutable = strdup(xpath);
	rsc_id = strstr(mutable, "primitive[@id=\'");
	if (rsc_id != NULL) {
	rsc_id += strlen("primitive[@id=\'");
	search = strchr(rsc_id, '\'');
	}
	if (search != NULL) {
	*search = 0;
	stonith_device_remove(rsc_id, TRUE);
	} else {
	crm_warn("Ignoring malformed CIB update (resource deletion)");
	}
	free(mutable);

	} else if (strstr(xpath, "/"XML_CIB_TAG_RESOURCES) \|\|
	strstr(xpath, "/"XML_CIB_TAG_CONSTRAINTS) \|\|
	strstr(xpath, "/"XML_CIB_TAG_RSCCONFIG)) {
	shortpath = strrchr(xpath, '/'); CRM_ASSERT(shortpath);
	reason = crm_strdup_printf("%s %s", op, shortpath+1);
	needs_update = TRUE;
	break;
	}
	}

	if(needs_update) {
	crm_info("Updating device list from the cib: %s", reason);
	cib_devices_update();
	} else {
	crm_trace("No updates for device list found in cib");
	}
	free(reason);
	}


	static void
	update_cib_stonith_devices_v1(const char event, xmlNode msg)
	{
	const char *reason = "none";
	gboolean needs_update = FALSE;
	xmlXPathObjectPtr xpath_obj = NULL;

	/* process new constraints */
	xpath_obj = xpath_search(msg, "//" F_CIB_UPDATE_RESULT "//" XML_CONS_TAG_RSC_LOCATION);
	if (numXpathResults(xpath_obj) > 0) {
	int max = numXpathResults(xpath_obj), lpc = 0;

	/* Safest and simplest to always recompute */
	needs_update = TRUE;
	reason = "new location constraint";

	for (lpc = 0; lpc < max; lpc++) {
	xmlNode *match = getXpathResult(xpath_obj, lpc);

	crm_log_xml_trace(match, "new constraint");
	}
	}
	freeXpathObject(xpath_obj);

	/* process deletions */
	xpath_obj = xpath_search(msg, "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_REMOVED "//" XML_CIB_TAG_RESOURCE);
	if (numXpathResults(xpath_obj) > 0) {
	remove_cib_device(xpath_obj);
	}
	freeXpathObject(xpath_obj);

	/* process additions */
	xpath_obj = xpath_search(msg, "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_ADDED "//" XML_CIB_TAG_RESOURCE);
	if (numXpathResults(xpath_obj) > 0) {
	int max = numXpathResults(xpath_obj), lpc = 0;

	for (lpc = 0; lpc < max; lpc++) {
	const char *rsc_id = NULL;
	const char *standard = NULL;
	xmlNode *match = getXpathResult(xpath_obj, lpc);

	rsc_id = crm_element_value(match, XML_ATTR_ID);
	standard = crm_element_value(match, XML_AGENT_ATTR_CLASS);

	if (safe_str_neq(standard, PCMK_RESOURCE_CLASS_STONITH)) {
	continue;
	}

	crm_trace("Fencing resource %s was added or modified", rsc_id);
	reason = "new resource";
	needs_update = TRUE;
	}
	}
	freeXpathObject(xpath_obj);

	if(needs_update) {
	crm_info("Updating device list from the cib: %s", reason);
	cib_devices_update();
	}
	}

	static void
	update_cib_stonith_devices(const char event, xmlNode msg)
	{
	int format = 1;
	xmlNode *patchset = get_message_xml(msg, F_CIB_UPDATE_RESULT);

	CRM_ASSERT(patchset);
	crm_element_value_int(patchset, "format", &format);
	switch(format) {
	case 1:
	update_cib_stonith_devices_v1(event, msg);
	break;
	case 2:
	update_cib_stonith_devices_v2(event, msg);
	break;
	default:
	crm_warn("Unknown patch format: %d", format);
	}
	}

	/* Needs to hold node name + attribute name + attribute value + 75 */
	#define XPATH_MAX 512

	/*!
	* \internal
	* \brief Check whether a node has a specific attribute name/value
	*
	* \param[in] node Name of node to check
	* \param[in] name Name of an attribute to look for
	* \param[in] value The value the named attribute needs to be set to in order to be considered a match
	*
	* \return TRUE if the locally cached CIB has the specified node attribute
	*/
	gboolean
	node_has_attr(const char node, const char name, const char *value)
	{
	char xpath[XPATH_MAX];
	xmlNode *match;
	int n;

	CRM_CHECK(local_cib != NULL, return FALSE);

	/* Search for the node's attributes in the CIB. While the schema allows
	* multiple sets of instance attributes, and allows instance attributes to
	* use id-ref to reference values elsewhere, that is intended for resources,
	* so we ignore that here.
	*/
	n = snprintf(xpath, XPATH_MAX, "//" XML_CIB_TAG_NODES
	"/" XML_CIB_TAG_NODE "[@uname='%s']/" XML_TAG_ATTR_SETS
	"/" XML_CIB_TAG_NVPAIR "[@name='%s' and @value='%s']",
	node, name, value);
	match = get_xpath_object(xpath, local_cib, LOG_TRACE);

	CRM_CHECK(n < XPATH_MAX, return FALSE);
	return (match != NULL);
	}

	static void
	update_fencing_topology(const char event, xmlNode msg)
	{
	int format = 1;
	const char *xpath;
	xmlXPathObjectPtr xpathObj = NULL;
	xmlNode *patchset = get_message_xml(msg, F_CIB_UPDATE_RESULT);

	CRM_ASSERT(patchset);
	crm_element_value_int(patchset, "format", &format);

	if(format == 1) {
	/* Process deletions (only) */
	xpath = "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_REMOVED "//" XML_TAG_FENCING_LEVEL;
	xpathObj = xpath_search(msg, xpath);

	remove_fencing_topology(xpathObj);
	freeXpathObject(xpathObj);

	/* Process additions and changes */
	xpath = "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_ADDED "//" XML_TAG_FENCING_LEVEL;
	xpathObj = xpath_search(msg, xpath);

	register_fencing_topology(xpathObj);
	freeXpathObject(xpathObj);

	} else if(format == 2) {
	xmlNode *change = NULL;
	int add[] = { 0, 0, 0 };
	int del[] = { 0, 0, 0 };

	xml_patch_versions(patchset, add, del);

	for (change = __xml_first_child(patchset); change != NULL; change = __xml_next(change)) {
	const char *op = crm_element_value(change, XML_DIFF_OP);
	const char *xpath = crm_element_value(change, XML_DIFF_PATH);

	if(op == NULL) {
	continue;

	} else if(strstr(xpath, "/" XML_TAG_FENCING_LEVEL) != NULL) {
	/* Change to a specific entry */

	crm_trace("Handling %s operation %d.%d.%d for %s", op, add[0], add[1], add[2], xpath);
	if(strcmp(op, "move") == 0) {
	continue;

	} else if(strcmp(op, "create") == 0) {
	handle_topology_change(change->children, FALSE);

	} else if(strcmp(op, "modify") == 0) {
	xmlNode *match = first_named_child(change, XML_DIFF_RESULT);

	if(match) {
	handle_topology_change(match->children, TRUE);
	}

	} else if(strcmp(op, "delete") == 0) {
	/* Nuclear option, all we have is the path and an id... not enough to remove a specific entry */
	crm_info("Re-initializing fencing topology after %s operation %d.%d.%d for %s",
	op, add[0], add[1], add[2], xpath);
	fencing_topology_init();
	return;
	}

	} else if (strstr(xpath, "/" XML_TAG_FENCING_TOPOLOGY) != NULL) {
	/* Change to the topology in general */
	crm_info("Re-initializing fencing topology after top-level %s operation %d.%d.%d for %s",
	op, add[0], add[1], add[2], xpath);
	fencing_topology_init();
	return;

	} else if (strstr(xpath, "/" XML_CIB_TAG_CONFIGURATION)) {
	/* Changes to the whole config section, possibly including the topology as a whild */
	if(first_named_child(change, XML_TAG_FENCING_TOPOLOGY) == NULL) {
	crm_trace("Nothing for us in %s operation %d.%d.%d for %s.",
	op, add[0], add[1], add[2], xpath);

	} else if(strcmp(op, "delete") == 0 \|\| strcmp(op, "create") == 0) {
	crm_info("Re-initializing fencing topology after top-level %s operation %d.%d.%d for %s.",
	op, add[0], add[1], add[2], xpath);
	fencing_topology_init();
	return;
	}

	} else {
	crm_trace("Nothing for us in %s operation %d.%d.%d for %s",
	op, add[0], add[1], add[2], xpath);
	}
	}

	} else {
	crm_warn("Unknown patch format: %d", format);
	}
	}
	static bool have_cib_devices = FALSE;

	static void
	update_cib_cache_cb(const char event, xmlNode msg)
	{
	int rc = pcmk_ok;
	xmlNode *stonith_enabled_xml = NULL;
	xmlNode *stonith_watchdog_xml = NULL;
	const char *stonith_enabled_s = NULL;
	static gboolean stonith_enabled_saved = TRUE;

	if(!have_cib_devices) {
	crm_trace("Skipping updates until we get a full dump");
	return;

	} else if(msg == NULL) {
	crm_trace("Missing %s update", event);
	return;
	}

	/* Maintain a local copy of the CIB so that we have full access
	* to device definitions, location constraints, and node attributes
	*/
	if (local_cib != NULL) {
	int rc = pcmk_ok;
	xmlNode *patchset = NULL;

	crm_element_value_int(msg, F_CIB_RC, &rc);
	if (rc != pcmk_ok) {
	return;
	}

	patchset = get_message_xml(msg, F_CIB_UPDATE_RESULT);
	xml_log_patchset(LOG_TRACE, "Config update", patchset);
	rc = xml_apply_patchset(local_cib, patchset, TRUE);
	switch (rc) {
	case pcmk_ok:
	case -pcmk_err_old_data:
	break;
	case -pcmk_err_diff_resync:
	case -pcmk_err_diff_failed:
	crm_notice("[%s] Patch aborted: %s (%d)", event, pcmk_strerror(rc), rc);
	free_xml(local_cib);
	local_cib = NULL;
	break;
	default:
	crm_warn("[%s] ABORTED: %s (%d)", event, pcmk_strerror(rc), rc);
	free_xml(local_cib);
	local_cib = NULL;
	}
	}

	if (local_cib == NULL) {
	crm_trace("Re-requesting the full cib");
	rc = cib_api->cmds->query(cib_api, NULL, &local_cib, cib_scope_local \| cib_sync_call);
	if(rc != pcmk_ok) {
	crm_err("Couldn't retrieve the CIB: %s (%d)", pcmk_strerror(rc), rc);
	return;
	}
	CRM_ASSERT(local_cib != NULL);
	stonith_enabled_saved = FALSE; /* Trigger a full refresh below */
	}

	crm_peer_caches_refresh(local_cib);

	stonith_enabled_xml = get_xpath_object("//nvpair[@name='stonith-enabled']", local_cib, LOG_TRACE);
	if (stonith_enabled_xml) {
	stonith_enabled_s = crm_element_value(stonith_enabled_xml, XML_NVPAIR_ATTR_VALUE);
	}

	if (stonith_enabled_s == NULL \|\| crm_is_true(stonith_enabled_s)) {
	long timeout_ms = 0;
	const char *value = NULL;

	stonith_watchdog_xml = get_xpath_object("//nvpair[@name='stonith-watchdog-timeout']", local_cib, LOG_TRACE);
	if (stonith_watchdog_xml) {
	value = crm_element_value(stonith_watchdog_xml, XML_NVPAIR_ATTR_VALUE);
	}

	if(value) {
	timeout_ms = crm_get_msec(value);
	}

	if(timeout_ms != stonith_watchdog_timeout_ms) {
	crm_notice("New watchdog timeout %lds (was %lds)", timeout_ms/1000, stonith_watchdog_timeout_ms/1000);
	stonith_watchdog_timeout_ms = timeout_ms;
	}

	} else {
	stonith_watchdog_timeout_ms = 0;
	}

	if (stonith_enabled_s && crm_is_true(stonith_enabled_s) == FALSE) {
	crm_trace("Ignoring cib updates while stonith is disabled");
	stonith_enabled_saved = FALSE;
	return;

	} else if (stonith_enabled_saved == FALSE) {
	crm_info("Updating stonith device and topology lists now that stonith is enabled");
	stonith_enabled_saved = TRUE;
	fencing_topology_init();
	cib_devices_update();

	} else {
	update_fencing_topology(event, msg);
	update_cib_stonith_devices(event, msg);
	}
	}

	static void
	init_cib_cache_cb(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
	{
	crm_info("Updating device list from the cib: init");
	have_cib_devices = TRUE;
	local_cib = copy_xml(output);

	crm_peer_caches_refresh(local_cib);

	fencing_topology_init();
	cib_devices_update();
	}

	static void
	stonith_shutdown(int nsig)
	{
	stonith_shutdown_flag = TRUE;
	crm_info("Terminating with %d clients",
	crm_hash_table_size(client_connections));
	if (mainloop != NULL && g_main_is_running(mainloop)) {
	g_main_quit(mainloop);
	} else {
	stonith_cleanup();
	crm_exit(pcmk_ok);
	}
	}

	static void
	cib_connection_destroy(gpointer user_data)
	{
	if (stonith_shutdown_flag) {
	crm_info("Connection to the CIB closed.");
	return;
	} else {
	crm_notice("Connection to the CIB terminated. Shutting down.");
	}
	if (cib_api) {
	cib_api->cmds->signoff(cib_api);
	}
	stonith_shutdown(0);
	}

	static void
	stonith_cleanup(void)
	{
	if (cib_api) {
	cib_api->cmds->signoff(cib_api);
	}

	if (ipcs) {
	qb_ipcs_destroy(ipcs);
	}

	crm_peer_destroy();
	crm_client_cleanup();
	free_stonith_remote_op_list();
	free(stonith_our_uname);
	free_xml(local_cib);
	}

	/* INDENT-OFF */
	static struct crm_option long_options[] = {
	{"stand-alone", 0, 0, 's'},
	{"stand-alone-w-cpg", 0, 0, 'c'},
	{"logfile", 1, 0, 'l'},
	{"verbose", 0, 0, 'V'},
	{"version", 0, 0, '$'},
	{"help", 0, 0, '?'},

	{0, 0, 0, 0}
	};
	/* INDENT-ON */

	static void
	setup_cib(void)
	{
	int rc, retries = 0;
	static cib_t (cib_new_fn) (void) = NULL;

	if (cib_new_fn == NULL) {
	cib_new_fn = find_library_function(&cib_library, CIB_LIBRARY, "cib_new", TRUE);
	}

	if (cib_new_fn != NULL) {
	cib_api = (*cib_new_fn) ();
	}

	if (cib_api == NULL) {
	crm_err("No connection to the CIB");
	return;
	}

	do {
	sleep(retries);
	rc = cib_api->cmds->signon(cib_api, CRM_SYSTEM_STONITHD, cib_command);
	} while (rc == -ENOTCONN && ++retries < 5);

	if (rc != pcmk_ok) {
	crm_err("Could not connect to the CIB service: %s (%d)", pcmk_strerror(rc), rc);

	} else if (pcmk_ok !=
	cib_api->cmds->add_notify_callback(cib_api, T_CIB_DIFF_NOTIFY, update_cib_cache_cb)) {
	crm_err("Could not set CIB notification callback");

	} else {
	rc = cib_api->cmds->query(cib_api, NULL, NULL, cib_scope_local);
	cib_api->cmds->register_callback(cib_api, rc, 120, FALSE, NULL, "init_cib_cache_cb",
	init_cib_cache_cb);
	cib_api->cmds->set_connection_dnotify(cib_api, cib_connection_destroy);
	crm_info("Watching for stonith topology changes");
	}
	}

	struct qb_ipcs_service_handlers ipc_callbacks = {
	.connection_accept = st_ipc_accept,
	.connection_created = st_ipc_created,
	.msg_process = st_ipc_dispatch,
	.connection_closed = st_ipc_closed,
	.connection_destroyed = st_ipc_destroy
	};

	/*!
	* \internal
	* \brief Callback for peer status changes
	*
	* \param[in] type What changed
	* \param[in] node What peer had the change
	* \param[in] data Previous value of what changed
	*/
	static void
	st_peer_update_callback(enum crm_status_type type, crm_node_t * node, const void *data)
	{
	if ((type != crm_status_processes) && !is_set(node->flags, crm_remote_node)) {
	/*
	* This is a hack until we can send to a nodeid and/or we fix node name lookups
	* These messages are ignored in stonith_peer_callback()
	*/
	xmlNode *query = create_xml_node(NULL, "stonith_command");

	crm_xml_add(query, F_XML_TAGNAME, "stonith_command");
	crm_xml_add(query, F_TYPE, T_STONITH_NG);
	crm_xml_add(query, F_STONITH_OPERATION, "poke");

	crm_debug("Broadcasting our uname because of node %u", node->id);
	send_cluster_message(NULL, crm_msg_stonith_ng, query, FALSE);

	free_xml(query);
	}
	}

	int
	main(int argc, char **argv)
	{
	int flag;
	int rc = 0;
	int lpc = 0;
	int argerr = 0;
	int option_index = 0;
	crm_cluster_t cluster;
	const char *actions[] = { "reboot", "off", "on", "list", "monitor", "status" };
	crm_ipc_t *old_instance = NULL;

	crm_log_preinit("stonith-ng", argc, argv);
	crm_set_options(NULL, "mode [options]", long_options,
	"Provides a summary of cluster's current state."
	"\n\nOutputs varying levels of detail in a number of different formats.\n");

	while (1) {
	flag = crm_get_option(argc, argv, &option_index);
	if (flag == -1) {
	break;
	}

	switch (flag) {
	case 'V':
	crm_bump_log_level(argc, argv);
	break;
	case 'l':
	crm_add_logfile(optarg);
	break;
	case 's':
	stand_alone = TRUE;
	break;
	case 'c':
	stand_alone = FALSE;
	no_cib_connect = TRUE;
	break;
	case '$':
	case '?':
	crm_help(flag, EX_OK);
	break;
	default:
	++argerr;
	break;
	}
	}

	if (argc - optind == 1 && safe_str_eq("metadata", argv[optind])) {
	printf("<?xml version=\"1.0\"?><!DOCTYPE resource-agent SYSTEM \"ra-api-1.dtd\">\n");
	printf("<resource-agent name=\"stonithd\">\n");
	printf(" <version>1.0</version>\n");
	printf
	(" <longdesc lang=\"en\">This is a fake resource that details the instance attributes handled by stonithd.</longdesc>\n");
	printf(" <shortdesc lang=\"en\">Options available for all stonith resources</shortdesc>\n");
	printf(" <parameters>\n");

	#if 0
	// priority is not implemented yet
	printf(" <parameter name=\"priority\" unique=\"0\">\n");
	printf(" <shortdesc lang=\"en\">Devices that are not in a topology "
	"are tried in order of highest to lowest integer priority</shortdesc>\n");
	printf(" <content type=\"integer\" default=\"0\"/>\n");
	printf(" </parameter>\n");
	#endif

	printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_HOSTARG);
	printf
	(" <shortdesc lang=\"en\">Advanced use only: An alternate parameter to supply instead of 'port'</shortdesc>\n");
	printf
	(" <longdesc lang=\"en\">Some devices do not support the standard 'port' parameter or may provide additional ones.\n"
	"Use this to specify an alternate, device-specific, parameter that should indicate the machine to be fenced.\n"
	"A value of 'none' can be used to tell the cluster not to supply any additional parameters.\n"
	" </longdesc>\n");
	printf(" <content type=\"string\" default=\"port\"/>\n");
	printf(" </parameter>\n");

	printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_HOSTMAP);
	printf
	(" <shortdesc lang=\"en\">A mapping of host names to ports numbers for devices that do not support host names.</shortdesc>\n");
	printf
	(" <longdesc lang=\"en\">Eg. node1:1;node2:2,3 would tell the cluster to use port 1 for node1 and ports 2 and 3 for node2</longdesc>\n");
	printf(" <content type=\"string\" default=\"\"/>\n");
	printf(" </parameter>\n");

	printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_HOSTLIST);
	printf
	(" <shortdesc lang=\"en\">A list of machines controlled by this device (Optional unless %s=static-list).</shortdesc>\n",
	STONITH_ATTR_HOSTCHECK);
	printf(" <content type=\"string\" default=\"\"/>\n");
	printf(" </parameter>\n");

	printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_HOSTCHECK);
	printf
	(" <shortdesc lang=\"en\">How to determine which machines are controlled by the device.</shortdesc>\n");
	printf(" <longdesc lang=\"en\">Allowed values: dynamic-list "
	"(query the device via the 'list' command), static-list "
	"(check the " STONITH_ATTR_HOSTLIST " attribute), status "
	"(query the device via the 'status' command), none (assume "
	"every device can fence every machine)</longdesc>\n");
	printf(" <content type=\"string\" default=\"dynamic-list\"/>\n");
	printf(" </parameter>\n");

	printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_DELAY_MAX);
	printf
	(" <shortdesc lang=\"en\">Enable a random delay for stonith actions and specify the maximum of random delay.</shortdesc>\n");
	printf
	(" <longdesc lang=\"en\">This prevents double fencing when using slow devices such as sbd.\n"
	"Use this to enable a random delay for stonith actions.\n"
	"The overall delay is derived from this random delay value adding a static delay so that the sum is kept below the maximum delay.</longdesc>\n");
	printf(" <content type=\"time\" default=\"0s\"/>\n");
	printf(" </parameter>\n");

	printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_DELAY_BASE);
	printf
	(" <shortdesc lang=\"en\">Enable a base delay for stonith actions and specify base delay value.</shortdesc>\n");
	printf
	(" <longdesc lang=\"en\">This prevents double fencing when different delays are configured on the nodes.\n"
	"Use this to enable a static delay for stonith actions.\n"
	"The overall delay is derived from a random delay value adding this static delay so that the sum is kept below the maximum delay.</longdesc>\n");
	printf(" <content type=\"time\" default=\"0s\"/>\n");
	printf(" </parameter>\n");

	printf(" <parameter name=\"%s\" unique=\"0\">\n", STONITH_ATTR_ACTION_LIMIT);
	printf
	(" <shortdesc lang=\"en\">The maximum number of actions can be performed in parallel on this device</shortdesc>\n");
	printf
	(" <longdesc lang=\"en\">Pengine property concurrent-fencing=true needs to be configured first.\n"
	"Then use this to specify the maximum number of actions can be performed in parallel on this device. -1 is unlimited.</longdesc>\n");
	printf(" <content type=\"integer\" default=\"1\"/>\n");
	printf(" </parameter>\n");


	for (lpc = 0; lpc < DIMOF(actions); lpc++) {
	printf(" <parameter name=\"pcmk_%s_action\" unique=\"0\">\n", actions[lpc]);
	printf
	(" <shortdesc lang=\"en\">Advanced use only: An alternate command to run instead of '%s'</shortdesc>\n",
	actions[lpc]);
	printf
	(" <longdesc lang=\"en\">Some devices do not support the standard commands or may provide additional ones.\n"
	"Use this to specify an alternate, device-specific, command that implements the '%s' action.</longdesc>\n",
	actions[lpc]);
	printf(" <content type=\"string\" default=\"%s\"/>\n", actions[lpc]);
	printf(" </parameter>\n");

	printf(" <parameter name=\"pcmk_%s_timeout\" unique=\"0\">\n", actions[lpc]);
	printf
	(" <shortdesc lang=\"en\">Advanced use only: Specify an alternate timeout to use for %s actions instead of stonith-timeout</shortdesc>\n",
	actions[lpc]);
	printf
	(" <longdesc lang=\"en\">Some devices need much more/less time to complete than normal.\n"
	"Use this to specify an alternate, device-specific, timeout for '%s' actions.</longdesc>\n",
	actions[lpc]);
	printf(" <content type=\"time\" default=\"60s\"/>\n");
	printf(" </parameter>\n");

	printf(" <parameter name=\"pcmk_%s_retries\" unique=\"0\">\n", actions[lpc]);
	printf
	(" <shortdesc lang=\"en\">Advanced use only: The maximum number of times to retry the '%s' command within the timeout period</shortdesc>\n",
	actions[lpc]);
	printf(" <longdesc lang=\"en\">Some devices do not support multiple connections."
	" Operations may 'fail' if the device is busy with another task so Pacemaker will automatically retry the operation, if there is time remaining."
	" Use this option to alter the number of times Pacemaker retries '%s' actions before giving up."
	"</longdesc>\n", actions[lpc]);
	printf(" <content type=\"integer\" default=\"2\"/>\n");
	printf(" </parameter>\n");
	}

	printf(" </parameters>\n");
	printf("</resource-agent>\n");
	return 0;
	}

	if (optind != argc) {
	++argerr;
	}

	if (argerr) {
	crm_help('?', EX_USAGE);
	}

	crm_log_init("stonith-ng", LOG_INFO, TRUE, FALSE, argc, argv, FALSE);

	old_instance = crm_ipc_new("stonith-ng", 0);
	if (crm_ipc_connect(old_instance)) {
	/* IPC end-point already up */
	crm_ipc_close(old_instance);
	crm_ipc_destroy(old_instance);
	crm_err("stonithd is already active, aborting startup");
	crm_exit(EX_OK);
	} else {
	/* not up or not authentic, we'll proceed either way */
	crm_ipc_destroy(old_instance);
	old_instance = NULL;
	}

	mainloop_add_signal(SIGTERM, stonith_shutdown);

	crm_peer_init();

	fenced_data_set = pe_new_working_set();
	CRM_ASSERT(fenced_data_set != NULL);

	if (stand_alone == FALSE) {
	#if SUPPORT_HEARTBEAT
	cluster.hb_conn = NULL;
	cluster.hb_dispatch = stonith_peer_hb_callback;
	cluster.destroy = stonith_peer_hb_destroy;
	#endif

	if (is_openais_cluster()) {
	#if SUPPORT_COROSYNC
	cluster.destroy = stonith_peer_cs_destroy;
	cluster.cpg.cpg_deliver_fn = stonith_peer_ais_callback;
	cluster.cpg.cpg_confchg_fn = pcmk_cpg_membership;
	#endif
	}

	crm_set_status_callback(&st_peer_update_callback);

	if (crm_cluster_connect(&cluster) == FALSE) {
	crm_crit("Cannot sign in to the cluster... terminating");
	crm_exit(DAEMON_RESPAWN_STOP);
	}
	stonith_our_uname = cluster.uname;
	stonith_our_uuid = cluster.uuid;

	#if SUPPORT_HEARTBEAT
	if (is_heartbeat_cluster()) {
	/* crm_cluster_connect() registered us for crm_system_name, which
	* usually is the only F_TYPE used by the respective sub system.
	* Stonith needs to register two additional F_TYPE callbacks,
	* because it can :-/ */
	if (HA_OK !=
	cluster.hb_conn->llc_ops->set_msg_callback(cluster.hb_conn, T_STONITH_NOTIFY,
	cluster.hb_dispatch, cluster.hb_conn)) {
	crm_crit("Cannot set msg callback %s: %s", T_STONITH_NOTIFY, cluster.hb_conn->llc_ops->errmsg(cluster.hb_conn));
	crm_exit(DAEMON_RESPAWN_STOP);
	}
	if (HA_OK !=
	cluster.hb_conn->llc_ops->set_msg_callback(cluster.hb_conn, T_STONITH_TIMEOUT_VALUE,
	cluster.hb_dispatch, cluster.hb_conn)) {
	crm_crit("Cannot set msg callback %s: %s", T_STONITH_TIMEOUT_VALUE, cluster.hb_conn->llc_ops->errmsg(cluster.hb_conn));
	crm_exit(DAEMON_RESPAWN_STOP);
	}
	}
	#endif

	if (no_cib_connect == FALSE) {
	setup_cib();
	}

	} else {
	stonith_our_uname = strdup("localhost");
	}


	device_list = g_hash_table_new_full(crm_str_hash, g_str_equal, NULL, free_device);

	topology = g_hash_table_new_full(crm_str_hash, g_str_equal, NULL, free_topology_entry);

	if(stonith_watchdog_timeout_ms > 0) {
	xmlNode *xml;
	stonith_key_value_t *params = NULL;

	params = stonith_key_value_add(params, STONITH_ATTR_HOSTLIST, stonith_our_uname);

	xml = create_device_registration_xml("watchdog", st_namespace_internal,
	STONITH_WATCHDOG_AGENT, params,
	NULL);
	stonith_device_register(xml, NULL, FALSE);

	stonith_key_value_freeall(params, 1, 1);
	free_xml(xml);
	}

	stonith_ipc_server_init(&ipcs, &ipc_callbacks);

	#if SUPPORT_STONITH_CONFIG
	if (((stand_alone == TRUE)) && !(standalone_cfg_read_file(STONITH_NG_CONF_FILE))) {
	standalone_cfg_commit();
	}
	#endif

	/* Create the mainloop and run it... */
	mainloop = g_main_new(FALSE);
	crm_info("Starting %s mainloop", crm_system_name);

	g_main_run(mainloop);
	stonith_cleanup();

	#if SUPPORT_HEARTBEAT
	if (cluster.hb_conn) {
	cluster.hb_conn->llc_ops->delete(cluster.hb_conn);
	}
	#endif


	pe_free_working_set(fenced_data_set);
	return crm_exit(rc);
	}

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