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	diff --git a/lib/lrmd/lrmd_client.c b/lib/lrmd/lrmd_client.c
	index 01c1a265f9..52c13e6949 100644
	--- a/lib/lrmd/lrmd_client.c
	+++ b/lib/lrmd/lrmd_client.c
	@@ -1,2112 +1,2108 @@
	/*
	* Copyright 2012-2021 the Pacemaker project contributors
	*
	* The version control history for this file may have further details.
	*
	* 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 <unistd.h>
	#include <stdlib.h>
	#include <stdio.h>
	#include <stdint.h> // uint32_t, uint64_t
	#include <stdarg.h>
	#include <string.h>
	#include <ctype.h>
	#include <errno.h>

	#include <sys/types.h>
	#include <sys/wait.h>

	#include <glib.h>
	#include <dirent.h>

	#include <crm/crm.h>
	#include <crm/lrmd.h>
	#include <crm/lrmd_internal.h>
	#include <crm/services.h>
	#include <crm/common/mainloop.h>
	#include <crm/common/ipc_internal.h>
	#include <crm/common/remote_internal.h>
	#include <crm/msg_xml.h>

	#include <crm/stonith-ng.h>

	#ifdef HAVE_GNUTLS_GNUTLS_H
	# undef KEYFILE
	# include <gnutls/gnutls.h>
	#endif

	#include <sys/socket.h>
	#include <netinet/in.h>
	#include <netinet/ip.h>
	#include <arpa/inet.h>
	#include <netdb.h>

	#define MAX_TLS_RECV_WAIT 10000

	CRM_TRACE_INIT_DATA(lrmd);

	static int lrmd_api_disconnect(lrmd_t * lrmd);
	static int lrmd_api_is_connected(lrmd_t * lrmd);

	/* IPC proxy functions */
	int lrmd_internal_proxy_send(lrmd_t * lrmd, xmlNode *msg);
	static void lrmd_internal_proxy_dispatch(lrmd_t lrmd, xmlNode msg);
	void lrmd_internal_set_proxy_callback(lrmd_t * lrmd, void userdata, void (callback)(lrmd_t lrmd, void userdata, xmlNode *msg));

	#ifdef HAVE_GNUTLS_GNUTLS_H
	# define LRMD_CLIENT_HANDSHAKE_TIMEOUT 5000 /* 5 seconds */
	gnutls_psk_client_credentials_t psk_cred_s;
	int lrmd_tls_set_key(gnutls_datum_t * key);
	static void lrmd_tls_disconnect(lrmd_t * lrmd);
	static int global_remote_msg_id = 0;
	static void lrmd_tls_connection_destroy(gpointer userdata);
	#endif

	typedef struct lrmd_private_s {
	uint64_t type;
	char *token;
	mainloop_io_t *source;

	/* IPC parameters */
	crm_ipc_t *ipc;

	pcmk__remote_t *remote;

	/* Extra TLS parameters */
	char *remote_nodename;
	#ifdef HAVE_GNUTLS_GNUTLS_H
	char *server;
	int port;
	gnutls_psk_client_credentials_t psk_cred_c;

	/* while the async connection is occurring, this is the id
	* of the connection timeout timer. */
	int async_timer;
	int sock;
	/* since tls requires a round trip across the network for a
	* request/reply, there are times where we just want to be able
	* to send a request from the client and not wait around (or even care
	* about) what the reply is. */
	int expected_late_replies;
	GList *pending_notify;
	crm_trigger_t *process_notify;
	#endif

	lrmd_event_callback callback;

	/* Internal IPC proxy msg passing for remote guests */
	void (proxy_callback)(lrmd_t lrmd, void userdata, xmlNode msg);
	void *proxy_callback_userdata;
	char *peer_version;
	} lrmd_private_t;

	static lrmd_list_t *
	lrmd_list_add(lrmd_list_t * head, const char *value)
	{
	lrmd_list_t p, end;

	p = calloc(1, sizeof(lrmd_list_t));
	p->val = strdup(value);

	end = head;
	while (end && end->next) {
	end = end->next;
	}

	if (end) {
	end->next = p;
	} else {
	head = p;
	}

	return head;
	}

	void
	lrmd_list_freeall(lrmd_list_t * head)
	{
	lrmd_list_t *p;

	while (head) {
	char val = (char )head->val;

	p = head->next;
	free(val);
	free(head);
	head = p;
	}
	}

	lrmd_key_value_t *
	lrmd_key_value_add(lrmd_key_value_t * head, const char key, const char value)
	{
	lrmd_key_value_t p, end;

	p = calloc(1, sizeof(lrmd_key_value_t));
	p->key = strdup(key);
	p->value = strdup(value);

	end = head;
	while (end && end->next) {
	end = end->next;
	}

	if (end) {
	end->next = p;
	} else {
	head = p;
	}

	return head;
	}

	void
	lrmd_key_value_freeall(lrmd_key_value_t * head)
	{
	lrmd_key_value_t *p;

	while (head) {
	p = head->next;
	free(head->key);
	free(head->value);
	free(head);
	head = p;
	}
	}

	/*!
	* Create a new lrmd_event_data_t object
	*
	* \param[in] rsc_id ID of resource involved in event
	* \param[in] task Action name
	* \param[in] interval_ms Action interval
	*
	* \return Newly allocated and initialized lrmd_event_data_t
	* \note This functions asserts on memory errors, so the return value is
	* guaranteed to be non-NULL. The caller is responsible for freeing the
	* result with lrmd_free_event().
	*/
	lrmd_event_data_t *
	lrmd_new_event(const char rsc_id, const char task, guint interval_ms)
	{
	lrmd_event_data_t *event = calloc(1, sizeof(lrmd_event_data_t));

	CRM_ASSERT(event != NULL);
	if (rsc_id != NULL) {
	event->rsc_id = strdup(rsc_id);
	CRM_ASSERT(event->rsc_id != NULL);
	}
	if (task != NULL) {
	event->op_type = strdup(task);
	CRM_ASSERT(event->op_type != NULL);
	}
	event->interval_ms = interval_ms;
	return event;
	}

	lrmd_event_data_t *
	lrmd_copy_event(lrmd_event_data_t * event)
	{
	lrmd_event_data_t *copy = NULL;

	copy = calloc(1, sizeof(lrmd_event_data_t));

	/* This will get all the int values.
	* we just have to be careful not to leave any
	* dangling pointers to strings. */
	memcpy(copy, event, sizeof(lrmd_event_data_t));

	copy->rsc_id = event->rsc_id ? strdup(event->rsc_id) : NULL;
	copy->op_type = event->op_type ? strdup(event->op_type) : NULL;
	copy->user_data = event->user_data ? strdup(event->user_data) : NULL;
	copy->output = event->output ? strdup(event->output) : NULL;
	copy->exit_reason = event->exit_reason ? strdup(event->exit_reason) : NULL;
	copy->remote_nodename = event->remote_nodename ? strdup(event->remote_nodename) : NULL;
	copy->params = pcmk__str_table_dup(event->params);

	return copy;
	}

	/*!
	* \brief Free an executor event
	*
	* \param[in] Executor event object to free
	*/
	void
	lrmd_free_event(lrmd_event_data_t *event)
	{
	if (event == NULL) {
	return;
	}
	// @TODO Why are these const char *?
	free((void *) event->rsc_id);
	free((void *) event->op_type);
	free((void *) event->user_data);
	free((void *) event->output);
	free((void *) event->exit_reason);
	free((void *) event->remote_nodename);
	if (event->params != NULL) {
	g_hash_table_destroy(event->params);
	}
	free(event);
	}

	-static int
	+static void
	lrmd_dispatch_internal(lrmd_t * lrmd, xmlNode * msg)
	{
	const char *type;
	const char *proxy_session = crm_element_value(msg, F_LRMD_IPC_SESSION);
	lrmd_private_t *native = lrmd->lrmd_private;
	lrmd_event_data_t event = { 0, };

	if (proxy_session != NULL) {
	/* this is proxy business */
	lrmd_internal_proxy_dispatch(lrmd, msg);
	- return 1;
	+ return;
	} else if (!native->callback) {
	/* no callback set */
	crm_trace("notify event received but client has not set callback");
	- return 1;
	+ return;
	}

	event.remote_nodename = native->remote_nodename;
	type = crm_element_value(msg, F_LRMD_OPERATION);
	crm_element_value_int(msg, F_LRMD_CALLID, &event.call_id);
	event.rsc_id = crm_element_value(msg, F_LRMD_RSC_ID);

	if (pcmk__str_eq(type, LRMD_OP_RSC_REG, pcmk__str_none)) {
	event.type = lrmd_event_register;
	} else if (pcmk__str_eq(type, LRMD_OP_RSC_UNREG, pcmk__str_none)) {
	event.type = lrmd_event_unregister;
	} else if (pcmk__str_eq(type, LRMD_OP_RSC_EXEC, pcmk__str_none)) {
	time_t epoch = 0;

	crm_element_value_int(msg, F_LRMD_TIMEOUT, &event.timeout);
	crm_element_value_ms(msg, F_LRMD_RSC_INTERVAL, &event.interval_ms);
	crm_element_value_int(msg, F_LRMD_RSC_START_DELAY, &event.start_delay);
	crm_element_value_int(msg, F_LRMD_EXEC_RC, (int *)&event.rc);
	crm_element_value_int(msg, F_LRMD_OP_STATUS, &event.op_status);
	crm_element_value_int(msg, F_LRMD_RSC_DELETED, &event.rsc_deleted);

	crm_element_value_epoch(msg, F_LRMD_RSC_RUN_TIME, &epoch);
	event.t_run = (unsigned int) epoch;

	crm_element_value_epoch(msg, F_LRMD_RSC_RCCHANGE_TIME, &epoch);
	event.t_rcchange = (unsigned int) epoch;

	crm_element_value_int(msg, F_LRMD_RSC_EXEC_TIME, (int *)&event.exec_time);
	crm_element_value_int(msg, F_LRMD_RSC_QUEUE_TIME, (int *)&event.queue_time);

	event.op_type = crm_element_value(msg, F_LRMD_RSC_ACTION);
	event.user_data = crm_element_value(msg, F_LRMD_RSC_USERDATA_STR);
	event.output = crm_element_value(msg, F_LRMD_RSC_OUTPUT);
	event.exit_reason = crm_element_value(msg, F_LRMD_RSC_EXIT_REASON);
	event.type = lrmd_event_exec_complete;

	event.params = xml2list(msg);
	} else if (pcmk__str_eq(type, LRMD_OP_NEW_CLIENT, pcmk__str_none)) {
	event.type = lrmd_event_new_client;
	} else if (pcmk__str_eq(type, LRMD_OP_POKE, pcmk__str_none)) {
	event.type = lrmd_event_poke;
	} else {
	- return 1;
	+ return;
	}

	crm_trace("op %s notify event received", type);
	native->callback(&event);

	if (event.params) {
	g_hash_table_destroy(event.params);
	}
	- return 1;
	}

	+// \return Always 0, to indicate that IPC mainloop source should be kept
	static int
	lrmd_ipc_dispatch(const char *buffer, ssize_t length, gpointer userdata)
	{
	lrmd_t *lrmd = userdata;
	lrmd_private_t *native = lrmd->lrmd_private;
	- xmlNode *msg;
	- int rc;

	- if (!native->callback) {
	- /* no callback set */
	- return 1;
	- }
	+ if (native->callback != NULL) {
	+ xmlNode *msg = string2xml(buffer);

	- msg = string2xml(buffer);
	- rc = lrmd_dispatch_internal(lrmd, msg);
	- free_xml(msg);
	- return rc;
	+ lrmd_dispatch_internal(lrmd, msg);
	+ free_xml(msg);
	+ }
	+ return 0;
	}

	#ifdef HAVE_GNUTLS_GNUTLS_H
	static void
	lrmd_free_xml(gpointer userdata)
	{
	free_xml((xmlNode *) userdata);
	}

	static int
	lrmd_tls_connected(lrmd_t * lrmd)
	{
	lrmd_private_t *native = lrmd->lrmd_private;

	if (native->remote->tls_session) {
	return TRUE;
	}

	return FALSE;
	}

	static int
	lrmd_tls_dispatch(gpointer userdata)
	{
	lrmd_t *lrmd = userdata;
	lrmd_private_t *native = lrmd->lrmd_private;
	xmlNode *xml = NULL;
	int rc = pcmk_rc_ok;

	if (lrmd_tls_connected(lrmd) == FALSE) {
	crm_trace("TLS dispatch triggered after disconnect");
	return 0;
	}

	crm_trace("TLS dispatch triggered");

	/* First check if there are any pending notifies to process that came
	* while we were waiting for replies earlier. */
	if (native->pending_notify) {
	GList *iter = NULL;

	crm_trace("Processing pending notifies");
	for (iter = native->pending_notify; iter; iter = iter->next) {
	lrmd_dispatch_internal(lrmd, iter->data);
	}
	g_list_free_full(native->pending_notify, lrmd_free_xml);
	native->pending_notify = NULL;
	}

	/* Next read the current buffer and see if there are any messages to handle. */
	switch (pcmk__remote_ready(native->remote, 0)) {
	case pcmk_rc_ok:
	rc = pcmk__read_remote_message(native->remote, -1);
	xml = pcmk__remote_message_xml(native->remote);
	break;
	case ETIME:
	// Nothing to read, check if a full message is already in buffer
	xml = pcmk__remote_message_xml(native->remote);
	break;
	default:
	rc = ENOTCONN;
	break;
	}
	while (xml) {
	const char *msg_type = crm_element_value(xml, F_LRMD_REMOTE_MSG_TYPE);
	if (pcmk__str_eq(msg_type, "notify", pcmk__str_casei)) {
	lrmd_dispatch_internal(lrmd, xml);
	} else if (pcmk__str_eq(msg_type, "reply", pcmk__str_casei)) {
	if (native->expected_late_replies > 0) {
	native->expected_late_replies--;
	} else {
	int reply_id = 0;
	crm_element_value_int(xml, F_LRMD_CALLID, &reply_id);
	/* if this happens, we want to know about it */
	crm_err("Got outdated Pacemaker Remote reply %d", reply_id);
	}
	}
	free_xml(xml);
	xml = pcmk__remote_message_xml(native->remote);
	}

	if (rc == ENOTCONN) {
	crm_info("Lost %s executor connection while reading data",
	(native->remote_nodename? native->remote_nodename : "local"));
	lrmd_tls_disconnect(lrmd);
	return 0;
	}
	return 1;
	}
	#endif

	/* Not used with mainloop */
	int
	lrmd_poll(lrmd_t * lrmd, int timeout)
	{
	lrmd_private_t *native = lrmd->lrmd_private;

	switch (native->type) {
	case pcmk__client_ipc:
	return crm_ipc_ready(native->ipc);

	#ifdef HAVE_GNUTLS_GNUTLS_H
	case pcmk__client_tls:
	if (native->pending_notify) {
	return 1;
	} else {
	int rc = pcmk__remote_ready(native->remote, 0);

	switch (rc) {
	case pcmk_rc_ok:
	return 1;
	case ETIME:
	return 0;
	default:
	return pcmk_rc2legacy(rc);
	}
	}
	#endif
	default:
	crm_err("Unsupported connection type: %d", native->type);
	}

	return 0;
	}

	/* Not used with mainloop */
	bool
	lrmd_dispatch(lrmd_t * lrmd)
	{
	lrmd_private_t *private = NULL;

	CRM_ASSERT(lrmd != NULL);

	private = lrmd->lrmd_private;
	switch (private->type) {
	case pcmk__client_ipc:
	while (crm_ipc_ready(private->ipc)) {
	if (crm_ipc_read(private->ipc) > 0) {
	const char *msg = crm_ipc_buffer(private->ipc);

	lrmd_ipc_dispatch(msg, strlen(msg), lrmd);
	}
	}
	break;
	#ifdef HAVE_GNUTLS_GNUTLS_H
	case pcmk__client_tls:
	lrmd_tls_dispatch(lrmd);
	break;
	#endif
	default:
	crm_err("Unsupported connection type: %d", private->type);
	}

	if (lrmd_api_is_connected(lrmd) == FALSE) {
	crm_err("Connection closed");
	return FALSE;
	}

	return TRUE;
	}

	static xmlNode *
	lrmd_create_op(const char token, const char op, xmlNode *data, int timeout,
	enum lrmd_call_options options)
	{
	xmlNode *op_msg = create_xml_node(NULL, "lrmd_command");

	CRM_CHECK(op_msg != NULL, return NULL);
	CRM_CHECK(token != NULL, return NULL);

	crm_xml_add(op_msg, F_XML_TAGNAME, "lrmd_command");
	crm_xml_add(op_msg, F_TYPE, T_LRMD);
	crm_xml_add(op_msg, F_LRMD_CALLBACK_TOKEN, token);
	crm_xml_add(op_msg, F_LRMD_OPERATION, op);
	crm_xml_add_int(op_msg, F_LRMD_TIMEOUT, timeout);
	crm_xml_add_int(op_msg, F_LRMD_CALLOPTS, options);

	if (data != NULL) {
	add_message_xml(op_msg, F_LRMD_CALLDATA, data);
	}

	crm_trace("Created executor %s command with call options %.8lx (%d)",
	op, (long)options, options);
	return op_msg;
	}

	static void
	lrmd_ipc_connection_destroy(gpointer userdata)
	{
	lrmd_t *lrmd = userdata;
	lrmd_private_t *native = lrmd->lrmd_private;

	crm_info("IPC connection destroyed");

	/* Prevent these from being cleaned up in lrmd_api_disconnect() */
	native->ipc = NULL;
	native->source = NULL;

	if (native->callback) {
	lrmd_event_data_t event = { 0, };
	event.type = lrmd_event_disconnect;
	event.remote_nodename = native->remote_nodename;
	native->callback(&event);
	}
	}

	#ifdef HAVE_GNUTLS_GNUTLS_H
	static void
	lrmd_tls_connection_destroy(gpointer userdata)
	{
	lrmd_t *lrmd = userdata;
	lrmd_private_t *native = lrmd->lrmd_private;

	crm_info("TLS connection destroyed");

	if (native->remote->tls_session) {
	gnutls_bye(*native->remote->tls_session, GNUTLS_SHUT_RDWR);
	gnutls_deinit(*native->remote->tls_session);
	gnutls_free(native->remote->tls_session);
	}
	if (native->psk_cred_c) {
	gnutls_psk_free_client_credentials(native->psk_cred_c);
	}
	if (native->sock) {
	close(native->sock);
	}
	if (native->process_notify) {
	mainloop_destroy_trigger(native->process_notify);
	native->process_notify = NULL;
	}
	if (native->pending_notify) {
	g_list_free_full(native->pending_notify, lrmd_free_xml);
	native->pending_notify = NULL;
	}

	free(native->remote->buffer);
	native->remote->buffer = NULL;
	native->source = 0;
	native->sock = 0;
	native->psk_cred_c = NULL;
	native->remote->tls_session = NULL;
	native->sock = 0;

	if (native->callback) {
	lrmd_event_data_t event = { 0, };
	event.remote_nodename = native->remote_nodename;
	event.type = lrmd_event_disconnect;
	native->callback(&event);
	}
	return;
	}

	// \return Standard Pacemaker return code
	int
	lrmd_tls_send_msg(pcmk__remote_t session, xmlNode msg, uint32_t id,
	const char *msg_type)
	{
	crm_xml_add_int(msg, F_LRMD_REMOTE_MSG_ID, id);
	crm_xml_add(msg, F_LRMD_REMOTE_MSG_TYPE, msg_type);
	return pcmk__remote_send_xml(session, msg);
	}

	static xmlNode *
	lrmd_tls_recv_reply(lrmd_t * lrmd, int total_timeout, int expected_reply_id, int *disconnected)
	{
	lrmd_private_t *native = lrmd->lrmd_private;
	xmlNode *xml = NULL;
	time_t start = time(NULL);
	const char *msg_type = NULL;
	int reply_id = 0;
	int remaining_timeout = 0;

	/* A timeout of 0 here makes no sense. We have to wait a period of time
	* for the response to come back. If -1 or 0, default to 10 seconds. */
	if (total_timeout <= 0 \|\| total_timeout > MAX_TLS_RECV_WAIT) {
	total_timeout = MAX_TLS_RECV_WAIT;
	}

	while (!xml) {

	xml = pcmk__remote_message_xml(native->remote);
	if (!xml) {
	/* read some more off the tls buffer if we still have time left. */
	if (remaining_timeout) {
	remaining_timeout = total_timeout - ((time(NULL) - start) * 1000);
	} else {
	remaining_timeout = total_timeout;
	}
	if (remaining_timeout <= 0) {
	crm_err("Never received the expected reply during the timeout period, disconnecting.");
	*disconnected = TRUE;
	return NULL;
	}

	if (pcmk__read_remote_message(native->remote,
	remaining_timeout) == ENOTCONN) {
	*disconnected = TRUE;
	} else {
	*disconnected = FALSE;
	}
	xml = pcmk__remote_message_xml(native->remote);
	if (!xml) {
	crm_err("Unable to receive expected reply, disconnecting.");
	*disconnected = TRUE;
	return NULL;
	} else if (*disconnected) {
	return NULL;
	}
	}

	CRM_ASSERT(xml != NULL);

	crm_element_value_int(xml, F_LRMD_REMOTE_MSG_ID, &reply_id);
	msg_type = crm_element_value(xml, F_LRMD_REMOTE_MSG_TYPE);

	if (!msg_type) {
	crm_err("Empty msg type received while waiting for reply");
	free_xml(xml);
	xml = NULL;
	} else if (pcmk__str_eq(msg_type, "notify", pcmk__str_casei)) {
	/* got a notify while waiting for reply, trigger the notify to be processed later */
	crm_info("queueing notify");
	native->pending_notify = g_list_append(native->pending_notify, xml);
	if (native->process_notify) {
	crm_info("notify trigger set.");
	mainloop_set_trigger(native->process_notify);
	}
	xml = NULL;
	} else if (!pcmk__str_eq(msg_type, "reply", pcmk__str_casei)) {
	/* msg isn't a reply, make some noise */
	crm_err("Expected a reply, got %s", msg_type);
	free_xml(xml);
	xml = NULL;
	} else if (reply_id != expected_reply_id) {
	if (native->expected_late_replies > 0) {
	native->expected_late_replies--;
	} else {
	crm_err("Got outdated reply, expected id %d got id %d", expected_reply_id, reply_id);
	}
	free_xml(xml);
	xml = NULL;
	}
	}

	if (native->remote->buffer && native->process_notify) {
	mainloop_set_trigger(native->process_notify);
	}

	return xml;
	}

	static int
	lrmd_tls_send(lrmd_t * lrmd, xmlNode * msg)
	{
	int rc = 0;
	lrmd_private_t *native = lrmd->lrmd_private;

	global_remote_msg_id++;
	if (global_remote_msg_id <= 0) {
	global_remote_msg_id = 1;
	}

	rc = lrmd_tls_send_msg(native->remote, msg, global_remote_msg_id, "request");
	if (rc != pcmk_rc_ok) {
	crm_err("Disconnecting because TLS message could not be sent to "
	"Pacemaker Remote: %s", pcmk_rc_str(rc));
	lrmd_tls_disconnect(lrmd);
	return -ENOTCONN;
	}
	return pcmk_ok;
	}

	static int
	lrmd_tls_send_recv(lrmd_t * lrmd, xmlNode * msg, int timeout, xmlNode ** reply)
	{
	int rc = 0;
	int disconnected = 0;
	xmlNode *xml = NULL;

	if (lrmd_tls_connected(lrmd) == FALSE) {
	return -1;
	}

	rc = lrmd_tls_send(lrmd, msg);
	if (rc < 0) {
	return rc;
	}

	xml = lrmd_tls_recv_reply(lrmd, timeout, global_remote_msg_id, &disconnected);

	if (disconnected) {
	crm_err("Pacemaker Remote disconnected while waiting for reply to request id %d",
	global_remote_msg_id);
	lrmd_tls_disconnect(lrmd);
	rc = -ENOTCONN;
	} else if (!xml) {
	crm_err("Did not receive reply from Pacemaker Remote for request id %d (timeout %dms)",
	global_remote_msg_id, timeout);
	rc = -ECOMM;
	}

	if (reply) {
	*reply = xml;
	} else {
	free_xml(xml);
	}

	return rc;
	}
	#endif

	static int
	lrmd_send_xml(lrmd_t * lrmd, xmlNode * msg, int timeout, xmlNode ** reply)
	{
	int rc = -1;
	lrmd_private_t *native = lrmd->lrmd_private;

	switch (native->type) {
	case pcmk__client_ipc:
	rc = crm_ipc_send(native->ipc, msg, crm_ipc_client_response, timeout, reply);
	break;
	#ifdef HAVE_GNUTLS_GNUTLS_H
	case pcmk__client_tls:
	rc = lrmd_tls_send_recv(lrmd, msg, timeout, reply);
	break;
	#endif
	default:
	crm_err("Unsupported connection type: %d", native->type);
	}

	return rc;
	}

	static int
	lrmd_send_xml_no_reply(lrmd_t * lrmd, xmlNode * msg)
	{
	int rc = -1;
	lrmd_private_t *native = lrmd->lrmd_private;

	switch (native->type) {
	case pcmk__client_ipc:
	rc = crm_ipc_send(native->ipc, msg, crm_ipc_flags_none, 0, NULL);
	break;
	#ifdef HAVE_GNUTLS_GNUTLS_H
	case pcmk__client_tls:
	rc = lrmd_tls_send(lrmd, msg);
	if (rc == pcmk_ok) {
	/* we don't want to wait around for the reply, but
	* since the request/reply protocol needs to behave the same
	* as libqb, a reply will eventually come later anyway. */
	native->expected_late_replies++;
	}
	break;
	#endif
	default:
	crm_err("Unsupported connection type: %d", native->type);
	}

	return rc;
	}

	static int
	lrmd_api_is_connected(lrmd_t * lrmd)
	{
	lrmd_private_t *native = lrmd->lrmd_private;

	switch (native->type) {
	case pcmk__client_ipc:
	return crm_ipc_connected(native->ipc);
	#ifdef HAVE_GNUTLS_GNUTLS_H
	case pcmk__client_tls:
	return lrmd_tls_connected(lrmd);
	#endif
	default:
	crm_err("Unsupported connection type: %d", native->type);
	}

	return 0;
	}

	/*!
	* \internal
	* \brief Send a prepared API command to the executor
	*
	* \param[in] lrmd Existing connection to the executor
	* \param[in] op Name of API command to send
	* \param[in] data Command data XML to add to the sent command
	* \param[out] output_data If expecting a reply, it will be stored here
	* \param[in] timeout Timeout in milliseconds (if 0, defaults to
	* a sensible value per the type of connection,
	* standard vs. pacemaker remote);
	* also propagated to the command XML
	* \param[in] call_options Call options to pass to server when sending
	* \param[in] expect_reply If TRUE, wait for a reply from the server;
	* must be TRUE for IPC (as opposed to TLS) clients
	*
	* \return pcmk_ok on success, -errno on error
	*/
	static int
	lrmd_send_command(lrmd_t lrmd, const char op, xmlNode *data,
	xmlNode **output_data, int timeout,
	enum lrmd_call_options options, gboolean expect_reply)
	{
	int rc = pcmk_ok;
	lrmd_private_t *native = lrmd->lrmd_private;
	xmlNode *op_msg = NULL;
	xmlNode *op_reply = NULL;

	if (!lrmd_api_is_connected(lrmd)) {
	return -ENOTCONN;
	}

	if (op == NULL) {
	crm_err("No operation specified");
	return -EINVAL;
	}

	CRM_CHECK(native->token != NULL,;
	);
	crm_trace("Sending %s op to executor", op);

	op_msg = lrmd_create_op(native->token, op, data, timeout, options);

	if (op_msg == NULL) {
	return -EINVAL;
	}

	if (expect_reply) {
	rc = lrmd_send_xml(lrmd, op_msg, timeout, &op_reply);
	} else {
	rc = lrmd_send_xml_no_reply(lrmd, op_msg);
	goto done;
	}

	if (rc < 0) {
	crm_perror(LOG_ERR, "Couldn't perform %s operation (timeout=%d): %d", op, timeout, rc);
	rc = -ECOMM;
	goto done;

	} else if(op_reply == NULL) {
	rc = -ENOMSG;
	goto done;
	}

	rc = pcmk_ok;
	crm_trace("%s op reply received", op);
	if (crm_element_value_int(op_reply, F_LRMD_RC, &rc) != 0) {
	rc = -ENOMSG;
	goto done;
	}

	crm_log_xml_trace(op_reply, "Reply");

	if (output_data) {
	*output_data = op_reply;
	op_reply = NULL; /* Prevent subsequent free */
	}

	done:
	if (lrmd_api_is_connected(lrmd) == FALSE) {
	crm_err("Executor disconnected");
	}

	free_xml(op_msg);
	free_xml(op_reply);
	return rc;
	}

	static int
	lrmd_api_poke_connection(lrmd_t * lrmd)
	{
	int rc;
	lrmd_private_t *native = lrmd->lrmd_private;
	xmlNode *data = create_xml_node(NULL, F_LRMD_RSC);

	crm_xml_add(data, F_LRMD_ORIGIN, __func__);
	rc = lrmd_send_command(lrmd, LRMD_OP_POKE, data, NULL, 0, 0,
	(native->type == pcmk__client_ipc));
	free_xml(data);

	return rc < 0 ? rc : pcmk_ok;
	}

	int
	remote_proxy_check(lrmd_t * lrmd, GHashTable *hash)
	{
	int rc;
	const char *value;
	lrmd_private_t *native = lrmd->lrmd_private;
	xmlNode *data = create_xml_node(NULL, F_LRMD_OPERATION);

	crm_xml_add(data, F_LRMD_ORIGIN, __func__);

	value = g_hash_table_lookup(hash, "stonith-watchdog-timeout");
	crm_xml_add(data, F_LRMD_WATCHDOG, value);

	rc = lrmd_send_command(lrmd, LRMD_OP_CHECK, data, NULL, 0, 0,
	(native->type == pcmk__client_ipc));
	free_xml(data);

	return rc < 0 ? rc : pcmk_ok;
	}

	static int
	lrmd_handshake(lrmd_t * lrmd, const char *name)
	{
	int rc = pcmk_ok;
	lrmd_private_t *native = lrmd->lrmd_private;
	xmlNode *reply = NULL;
	xmlNode *hello = create_xml_node(NULL, "lrmd_command");

	crm_xml_add(hello, F_TYPE, T_LRMD);
	crm_xml_add(hello, F_LRMD_OPERATION, CRM_OP_REGISTER);
	crm_xml_add(hello, F_LRMD_CLIENTNAME, name);
	crm_xml_add(hello, F_LRMD_PROTOCOL_VERSION, LRMD_PROTOCOL_VERSION);

	/* advertise that we are a proxy provider */
	if (native->proxy_callback) {
	crm_xml_add(hello, F_LRMD_IS_IPC_PROVIDER, "true");
	}

	rc = lrmd_send_xml(lrmd, hello, -1, &reply);

	if (rc < 0) {
	crm_perror(LOG_DEBUG, "Couldn't complete registration with the executor API: %d", rc);
	rc = -ECOMM;
	} else if (reply == NULL) {
	crm_err("Did not receive registration reply");
	rc = -EPROTO;
	} else {
	const char *version = crm_element_value(reply, F_LRMD_PROTOCOL_VERSION);
	const char *msg_type = crm_element_value(reply, F_LRMD_OPERATION);
	const char *tmp_ticket = crm_element_value(reply, F_LRMD_CLIENTID);

	crm_element_value_int(reply, F_LRMD_RC, &rc);

	if (rc == -EPROTO) {
	crm_err("Executor protocol version mismatch between client (%s) and server (%s)",
	LRMD_PROTOCOL_VERSION, version);
	crm_log_xml_err(reply, "Protocol Error");

	} else if (!pcmk__str_eq(msg_type, CRM_OP_REGISTER, pcmk__str_casei)) {
	crm_err("Invalid registration message: %s", msg_type);
	crm_log_xml_err(reply, "Bad reply");
	rc = -EPROTO;
	} else if (tmp_ticket == NULL) {
	crm_err("No registration token provided");
	crm_log_xml_err(reply, "Bad reply");
	rc = -EPROTO;
	} else {
	crm_trace("Obtained registration token: %s", tmp_ticket);
	native->token = strdup(tmp_ticket);
	native->peer_version = strdup(version?version:"1.0"); /* Included since 1.1 */
	rc = pcmk_ok;
	}
	}

	free_xml(reply);
	free_xml(hello);

	if (rc != pcmk_ok) {
	lrmd_api_disconnect(lrmd);
	}
	return rc;
	}

	static int
	lrmd_ipc_connect(lrmd_t * lrmd, int *fd)
	{
	int rc = pcmk_ok;
	lrmd_private_t *native = lrmd->lrmd_private;

	struct ipc_client_callbacks lrmd_callbacks = {
	.dispatch = lrmd_ipc_dispatch,
	.destroy = lrmd_ipc_connection_destroy
	};

	crm_info("Connecting to executor");

	if (fd) {
	/* No mainloop */
	native->ipc = crm_ipc_new(CRM_SYSTEM_LRMD, 0);
	if (native->ipc && crm_ipc_connect(native->ipc)) {
	*fd = crm_ipc_get_fd(native->ipc);
	} else if (native->ipc) {
	crm_perror(LOG_ERR, "Connection to executor failed");
	rc = -ENOTCONN;
	}
	} else {
	native->source = mainloop_add_ipc_client(CRM_SYSTEM_LRMD, G_PRIORITY_HIGH, 0, lrmd, &lrmd_callbacks);
	native->ipc = mainloop_get_ipc_client(native->source);
	}

	if (native->ipc == NULL) {
	crm_debug("Could not connect to the executor API");
	rc = -ENOTCONN;
	}

	return rc;
	}

	#ifdef HAVE_GNUTLS_GNUTLS_H
	static void
	copy_gnutls_datum(gnutls_datum_t dest, gnutls_datum_t source)
	{
	dest->data = gnutls_malloc(source->size);
	CRM_ASSERT(dest->data);
	memcpy(dest->data, source->data, source->size);
	dest->size = source->size;
	}

	static void
	clear_gnutls_datum(gnutls_datum_t *datum)
	{
	gnutls_free(datum->data);
	datum->data = NULL;
	datum->size = 0;
	}

	#define KEY_READ_LEN 256

	static int
	set_key(gnutls_datum_t * key, const char *location)
	{
	FILE *stream;
	size_t buf_len = KEY_READ_LEN;
	static gnutls_datum_t key_cache = { 0, };
	static time_t key_cache_updated = 0;

	if (location == NULL) {
	return -1;
	}

	if (key_cache.data != NULL) {
	if ((time(NULL) - key_cache_updated) < 60) {
	copy_gnutls_datum(key, &key_cache);
	crm_debug("Using cached Pacemaker Remote key");
	return 0;
	} else {
	clear_gnutls_datum(&key_cache);
	key_cache_updated = 0;
	crm_debug("Cleared Pacemaker Remote key cache");
	}
	}

	stream = fopen(location, "r");
	if (!stream) {
	return -1;
	}

	key->data = gnutls_malloc(buf_len);
	key->size = 0;
	while (!feof(stream)) {
	int next = fgetc(stream);

	if (next == EOF) {
	if (!feof(stream)) {
	crm_err("Error reading Pacemaker Remote key; copy in memory may be corrupted");
	}
	break;
	}
	if (key->size == buf_len) {
	buf_len = key->size + KEY_READ_LEN;
	key->data = gnutls_realloc(key->data, buf_len);
	CRM_ASSERT(key->data);
	}
	key->data[key->size++] = (unsigned char) next;
	}
	fclose(stream);

	if (key->size == 0) {
	clear_gnutls_datum(key);
	return -1;
	}

	if (key_cache.data == NULL) {
	copy_gnutls_datum(&key_cache, key);
	key_cache_updated = time(NULL);
	crm_debug("Cached Pacemaker Remote key");
	}

	return 0;
	}

	int
	lrmd_tls_set_key(gnutls_datum_t * key)
	{
	const char *specific_location = getenv("PCMK_authkey_location");

	if (set_key(key, specific_location) == 0) {
	crm_debug("Using custom authkey location %s", specific_location);
	return pcmk_ok;

	} else if (specific_location) {
	crm_err("No valid Pacemaker Remote key found at %s, trying default location", specific_location);
	}

	if ((set_key(key, DEFAULT_REMOTE_KEY_LOCATION) != 0)
	&& (set_key(key, ALT_REMOTE_KEY_LOCATION) != 0)) {
	crm_err("No valid Pacemaker Remote key found at %s", DEFAULT_REMOTE_KEY_LOCATION);
	return -ENOKEY;
	}

	return pcmk_ok;
	}

	static void
	lrmd_gnutls_global_init(void)
	{
	static int gnutls_init = 0;

	if (!gnutls_init) {
	crm_gnutls_global_init();
	}
	gnutls_init = 1;
	}
	#endif

	static void
	report_async_connection_result(lrmd_t * lrmd, int rc)
	{
	lrmd_private_t *native = lrmd->lrmd_private;

	if (native->callback) {
	lrmd_event_data_t event = { 0, };
	event.type = lrmd_event_connect;
	event.remote_nodename = native->remote_nodename;
	event.connection_rc = rc;
	native->callback(&event);
	}
	}

	#ifdef HAVE_GNUTLS_GNUTLS_H
	static inline int
	lrmd__tls_client_handshake(pcmk__remote_t *remote)
	{
	return pcmk__tls_client_handshake(remote, LRMD_CLIENT_HANDSHAKE_TIMEOUT);
	}

	static void
	lrmd_tcp_connect_cb(void *userdata, int rc, int sock)
	{
	lrmd_t *lrmd = userdata;
	lrmd_private_t *native = lrmd->lrmd_private;
	char *name;
	static struct mainloop_fd_callbacks lrmd_tls_callbacks = {
	.dispatch = lrmd_tls_dispatch,
	.destroy = lrmd_tls_connection_destroy,
	};
	gnutls_datum_t psk_key = { NULL, 0 };

	native->async_timer = 0;

	if (rc != pcmk_rc_ok) {
	lrmd_tls_connection_destroy(lrmd);
	crm_info("Could not connect to Pacemaker Remote at %s:%d: %s "
	CRM_XS " rc=%d",
	native->server, native->port, pcmk_rc_str(rc), rc);
	report_async_connection_result(lrmd, pcmk_rc2legacy(rc));
	return;
	}

	/* The TCP connection was successful, so establish the TLS connection.
	* @TODO make this async to avoid blocking code in client
	*/

	native->sock = sock;

	rc = lrmd_tls_set_key(&psk_key);
	if (rc != 0) {
	crm_warn("Could not set key for Pacemaker Remote at %s:%d " CRM_XS " rc=%d",
	native->server, native->port, rc);
	lrmd_tls_connection_destroy(lrmd);
	report_async_connection_result(lrmd, rc);
	return;
	}

	gnutls_psk_allocate_client_credentials(&native->psk_cred_c);
	gnutls_psk_set_client_credentials(native->psk_cred_c, DEFAULT_REMOTE_USERNAME, &psk_key, GNUTLS_PSK_KEY_RAW);
	gnutls_free(psk_key.data);

	native->remote->tls_session = pcmk__new_tls_session(sock, GNUTLS_CLIENT,
	GNUTLS_CRD_PSK,
	native->psk_cred_c);
	if (native->remote->tls_session == NULL) {
	lrmd_tls_connection_destroy(lrmd);
	report_async_connection_result(lrmd, -EPROTO);
	return;
	}

	if (lrmd__tls_client_handshake(native->remote) != pcmk_rc_ok) {
	crm_warn("Disconnecting after TLS handshake with Pacemaker Remote server %s:%d failed",
	native->server, native->port);
	gnutls_deinit(*native->remote->tls_session);
	gnutls_free(native->remote->tls_session);
	native->remote->tls_session = NULL;
	lrmd_tls_connection_destroy(lrmd);
	report_async_connection_result(lrmd, -EKEYREJECTED);
	return;
	}

	crm_info("TLS connection to Pacemaker Remote server %s:%d succeeded",
	native->server, native->port);

	name = crm_strdup_printf("pacemaker-remote-%s:%d",
	native->server, native->port);

	native->process_notify = mainloop_add_trigger(G_PRIORITY_HIGH, lrmd_tls_dispatch, lrmd);
	native->source =
	mainloop_add_fd(name, G_PRIORITY_HIGH, native->sock, lrmd, &lrmd_tls_callbacks);

	rc = lrmd_handshake(lrmd, name);
	free(name);

	report_async_connection_result(lrmd, rc);
	return;
	}

	static int
	lrmd_tls_connect_async(lrmd_t * lrmd, int timeout /ms / )
	{
	int rc;
	int timer_id = 0;
	lrmd_private_t *native = lrmd->lrmd_private;

	lrmd_gnutls_global_init();
	native->sock = -1;
	rc = pcmk__connect_remote(native->server, native->port, timeout, &timer_id,
	&(native->sock), lrmd, lrmd_tcp_connect_cb);
	if (rc != pcmk_rc_ok) {
	crm_warn("Pacemaker Remote connection to %s:%s failed: %s "
	CRM_XS " rc=%d",
	native->server, native->port, pcmk_rc_str(rc), rc);
	return -1;
	}
	native->async_timer = timer_id;
	return pcmk_ok;
	}

	static int
	lrmd_tls_connect(lrmd_t * lrmd, int *fd)
	{
	static struct mainloop_fd_callbacks lrmd_tls_callbacks = {
	.dispatch = lrmd_tls_dispatch,
	.destroy = lrmd_tls_connection_destroy,
	};
	int rc;

	lrmd_private_t *native = lrmd->lrmd_private;
	gnutls_datum_t psk_key = { NULL, 0 };

	lrmd_gnutls_global_init();

	native->sock = -1;
	rc = pcmk__connect_remote(native->server, native->port, 0, NULL,
	&(native->sock), NULL, NULL);
	if (rc != pcmk_rc_ok) {
	crm_warn("Pacemaker Remote connection to %s:%s failed: %s "
	CRM_XS " rc=%d",
	native->server, native->port, pcmk_rc_str(rc), rc);
	lrmd_tls_connection_destroy(lrmd);
	return -ENOTCONN;
	}

	rc = lrmd_tls_set_key(&psk_key);
	if (rc < 0) {
	lrmd_tls_connection_destroy(lrmd);
	return rc;
	}

	gnutls_psk_allocate_client_credentials(&native->psk_cred_c);
	gnutls_psk_set_client_credentials(native->psk_cred_c, DEFAULT_REMOTE_USERNAME, &psk_key, GNUTLS_PSK_KEY_RAW);
	gnutls_free(psk_key.data);

	native->remote->tls_session = pcmk__new_tls_session(native->sock, GNUTLS_CLIENT,
	GNUTLS_CRD_PSK,
	native->psk_cred_c);
	if (native->remote->tls_session == NULL) {
	lrmd_tls_connection_destroy(lrmd);
	return -EPROTO;
	}

	if (lrmd__tls_client_handshake(native->remote) != pcmk_rc_ok) {
	crm_err("Session creation for %s:%d failed", native->server, native->port);
	gnutls_deinit(*native->remote->tls_session);
	gnutls_free(native->remote->tls_session);
	native->remote->tls_session = NULL;
	lrmd_tls_connection_destroy(lrmd);
	return -EKEYREJECTED;
	}

	crm_info("Client TLS connection established with Pacemaker Remote server %s:%d", native->server,
	native->port);

	if (fd) {
	*fd = native->sock;
	} else {
	char *name = crm_strdup_printf("pacemaker-remote-%s:%d",
	native->server, native->port);

	native->process_notify = mainloop_add_trigger(G_PRIORITY_HIGH, lrmd_tls_dispatch, lrmd);
	native->source =
	mainloop_add_fd(name, G_PRIORITY_HIGH, native->sock, lrmd, &lrmd_tls_callbacks);
	free(name);
	}
	return pcmk_ok;
	}
	#endif

	static int
	lrmd_api_connect(lrmd_t * lrmd, const char name, int fd)
	{
	int rc = -ENOTCONN;
	lrmd_private_t *native = lrmd->lrmd_private;

	switch (native->type) {
	case pcmk__client_ipc:
	rc = lrmd_ipc_connect(lrmd, fd);
	break;
	#ifdef HAVE_GNUTLS_GNUTLS_H
	case pcmk__client_tls:
	rc = lrmd_tls_connect(lrmd, fd);
	break;
	#endif
	default:
	crm_err("Unsupported connection type: %d", native->type);
	}

	if (rc == pcmk_ok) {
	rc = lrmd_handshake(lrmd, name);
	}

	return rc;
	}

	static int
	lrmd_api_connect_async(lrmd_t * lrmd, const char *name, int timeout)
	{
	int rc = 0;
	lrmd_private_t *native = lrmd->lrmd_private;

	CRM_CHECK(native && native->callback, return -1);

	switch (native->type) {
	case pcmk__client_ipc:
	/* fake async connection with ipc. it should be fast
	* enough that we gain very little from async */
	rc = lrmd_api_connect(lrmd, name, NULL);
	if (!rc) {
	report_async_connection_result(lrmd, rc);
	}
	break;
	#ifdef HAVE_GNUTLS_GNUTLS_H
	case pcmk__client_tls:
	rc = lrmd_tls_connect_async(lrmd, timeout);
	if (rc) {
	/* connection failed, report rc now */
	report_async_connection_result(lrmd, rc);
	}
	break;
	#endif
	default:
	crm_err("Unsupported connection type: %d", native->type);
	}

	return rc;
	}

	static void
	lrmd_ipc_disconnect(lrmd_t * lrmd)
	{
	lrmd_private_t *native = lrmd->lrmd_private;

	if (native->source != NULL) {
	/* Attached to mainloop */
	mainloop_del_ipc_client(native->source);
	native->source = NULL;
	native->ipc = NULL;

	} else if (native->ipc) {
	/* Not attached to mainloop */
	crm_ipc_t *ipc = native->ipc;

	native->ipc = NULL;
	crm_ipc_close(ipc);
	crm_ipc_destroy(ipc);
	}
	}

	#ifdef HAVE_GNUTLS_GNUTLS_H
	static void
	lrmd_tls_disconnect(lrmd_t * lrmd)
	{
	lrmd_private_t *native = lrmd->lrmd_private;

	if (native->remote->tls_session) {
	gnutls_bye(*native->remote->tls_session, GNUTLS_SHUT_RDWR);
	gnutls_deinit(*native->remote->tls_session);
	gnutls_free(native->remote->tls_session);
	native->remote->tls_session = 0;
	}

	if (native->async_timer) {
	g_source_remove(native->async_timer);
	native->async_timer = 0;
	}

	if (native->source != NULL) {
	/* Attached to mainloop */
	mainloop_del_ipc_client(native->source);
	native->source = NULL;

	} else if (native->sock) {
	close(native->sock);
	native->sock = 0;
	}

	if (native->pending_notify) {
	g_list_free_full(native->pending_notify, lrmd_free_xml);
	native->pending_notify = NULL;
	}
	}
	#endif

	static int
	lrmd_api_disconnect(lrmd_t * lrmd)
	{
	lrmd_private_t *native = lrmd->lrmd_private;

	crm_info("Disconnecting %s %s executor connection",
	pcmk__client_type_str(native->type),
	(native->remote_nodename? native->remote_nodename : "local"));
	switch (native->type) {
	case pcmk__client_ipc:
	lrmd_ipc_disconnect(lrmd);
	break;
	#ifdef HAVE_GNUTLS_GNUTLS_H
	case pcmk__client_tls:
	lrmd_tls_disconnect(lrmd);
	break;
	#endif
	default:
	crm_err("Unsupported connection type: %d", native->type);
	}

	free(native->token);
	native->token = NULL;

	free(native->peer_version);
	native->peer_version = NULL;
	return 0;
	}

	static int
	lrmd_api_register_rsc(lrmd_t * lrmd,
	const char *rsc_id,
	const char *class,
	const char provider, const char type, enum lrmd_call_options options)
	{
	int rc = pcmk_ok;
	xmlNode *data = NULL;

	if (!class \|\| !type \|\| !rsc_id) {
	return -EINVAL;
	}
	if (pcmk_is_set(pcmk_get_ra_caps(class), pcmk_ra_cap_provider)
	&& (provider == NULL)) {
	return -EINVAL;
	}

	data = create_xml_node(NULL, F_LRMD_RSC);

	crm_xml_add(data, F_LRMD_ORIGIN, __func__);
	crm_xml_add(data, F_LRMD_RSC_ID, rsc_id);
	crm_xml_add(data, F_LRMD_CLASS, class);
	crm_xml_add(data, F_LRMD_PROVIDER, provider);
	crm_xml_add(data, F_LRMD_TYPE, type);
	rc = lrmd_send_command(lrmd, LRMD_OP_RSC_REG, data, NULL, 0, options, TRUE);
	free_xml(data);

	return rc;
	}

	static int
	lrmd_api_unregister_rsc(lrmd_t * lrmd, const char *rsc_id, enum lrmd_call_options options)
	{
	int rc = pcmk_ok;
	xmlNode *data = create_xml_node(NULL, F_LRMD_RSC);

	crm_xml_add(data, F_LRMD_ORIGIN, __func__);
	crm_xml_add(data, F_LRMD_RSC_ID, rsc_id);
	rc = lrmd_send_command(lrmd, LRMD_OP_RSC_UNREG, data, NULL, 0, options, TRUE);
	free_xml(data);

	return rc;
	}

	lrmd_rsc_info_t *
	lrmd_new_rsc_info(const char rsc_id, const char standard,
	const char provider, const char type)
	{
	lrmd_rsc_info_t *rsc_info = calloc(1, sizeof(lrmd_rsc_info_t));

	CRM_ASSERT(rsc_info);
	if (rsc_id) {
	rsc_info->id = strdup(rsc_id);
	CRM_ASSERT(rsc_info->id);
	}
	if (standard) {
	rsc_info->standard = strdup(standard);
	CRM_ASSERT(rsc_info->standard);
	}
	if (provider) {
	rsc_info->provider = strdup(provider);
	CRM_ASSERT(rsc_info->provider);
	}
	if (type) {
	rsc_info->type = strdup(type);
	CRM_ASSERT(rsc_info->type);
	}
	return rsc_info;
	}

	lrmd_rsc_info_t *
	lrmd_copy_rsc_info(lrmd_rsc_info_t * rsc_info)
	{
	return lrmd_new_rsc_info(rsc_info->id, rsc_info->standard,
	rsc_info->provider, rsc_info->type);
	}

	void
	lrmd_free_rsc_info(lrmd_rsc_info_t * rsc_info)
	{
	if (!rsc_info) {
	return;
	}
	free(rsc_info->id);
	free(rsc_info->type);
	free(rsc_info->standard);
	free(rsc_info->provider);
	free(rsc_info);
	}

	static lrmd_rsc_info_t *
	lrmd_api_get_rsc_info(lrmd_t * lrmd, const char *rsc_id, enum lrmd_call_options options)
	{
	lrmd_rsc_info_t *rsc_info = NULL;
	xmlNode *data = create_xml_node(NULL, F_LRMD_RSC);
	xmlNode *output = NULL;
	const char *class = NULL;
	const char *provider = NULL;
	const char *type = NULL;

	crm_xml_add(data, F_LRMD_ORIGIN, __func__);
	crm_xml_add(data, F_LRMD_RSC_ID, rsc_id);
	lrmd_send_command(lrmd, LRMD_OP_RSC_INFO, data, &output, 0, options, TRUE);
	free_xml(data);

	if (!output) {
	return NULL;
	}

	class = crm_element_value(output, F_LRMD_CLASS);
	provider = crm_element_value(output, F_LRMD_PROVIDER);
	type = crm_element_value(output, F_LRMD_TYPE);

	if (!class \|\| !type) {
	free_xml(output);
	return NULL;
	} else if (pcmk_is_set(pcmk_get_ra_caps(class), pcmk_ra_cap_provider)
	&& !provider) {
	free_xml(output);
	return NULL;
	}

	rsc_info = lrmd_new_rsc_info(rsc_id, class, provider, type);
	free_xml(output);
	return rsc_info;
	}

	void
	lrmd_free_op_info(lrmd_op_info_t *op_info)
	{
	if (op_info) {
	free(op_info->rsc_id);
	free(op_info->action);
	free(op_info->interval_ms_s);
	free(op_info->timeout_ms_s);
	free(op_info);
	}
	}

	static int
	lrmd_api_get_recurring_ops(lrmd_t lrmd, const char rsc_id, int timeout_ms,
	enum lrmd_call_options options, GList **output)
	{
	xmlNode *data = NULL;
	xmlNode *output_xml = NULL;
	int rc = pcmk_ok;

	if (output == NULL) {
	return -EINVAL;
	}
	*output = NULL;

	// Send request
	if (rsc_id) {
	data = create_xml_node(NULL, F_LRMD_RSC);
	crm_xml_add(data, F_LRMD_ORIGIN, __func__);
	crm_xml_add(data, F_LRMD_RSC_ID, rsc_id);
	}
	rc = lrmd_send_command(lrmd, LRMD_OP_GET_RECURRING, data, &output_xml,
	timeout_ms, options, TRUE);
	if (data) {
	free_xml(data);
	}

	// Process reply
	if ((rc != pcmk_ok) \|\| (output_xml == NULL)) {
	return rc;
	}
	for (xmlNode *rsc_xml = first_named_child(output_xml, F_LRMD_RSC);
	(rsc_xml != NULL) && (rc == pcmk_ok);
	rsc_xml = crm_next_same_xml(rsc_xml)) {

	rsc_id = crm_element_value(rsc_xml, F_LRMD_RSC_ID);
	if (rsc_id == NULL) {
	crm_err("Could not parse recurring operation information from executor");
	continue;
	}
	for (xmlNode *op_xml = first_named_child(rsc_xml, T_LRMD_RSC_OP);
	op_xml != NULL; op_xml = crm_next_same_xml(op_xml)) {

	lrmd_op_info_t *op_info = calloc(1, sizeof(lrmd_op_info_t));

	if (op_info == NULL) {
	rc = -ENOMEM;
	break;
	}
	op_info->rsc_id = strdup(rsc_id);
	op_info->action = crm_element_value_copy(op_xml, F_LRMD_RSC_ACTION);
	op_info->interval_ms_s = crm_element_value_copy(op_xml,
	F_LRMD_RSC_INTERVAL);
	op_info->timeout_ms_s = crm_element_value_copy(op_xml,
	F_LRMD_TIMEOUT);
	output = g_list_prepend(output, op_info);
	}
	}
	free_xml(output_xml);
	return rc;
	}


	static void
	lrmd_api_set_callback(lrmd_t * lrmd, lrmd_event_callback callback)
	{
	lrmd_private_t *native = lrmd->lrmd_private;

	native->callback = callback;
	}

	void
	lrmd_internal_set_proxy_callback(lrmd_t * lrmd, void userdata, void (callback)(lrmd_t lrmd, void userdata, xmlNode *msg))
	{
	lrmd_private_t *native = lrmd->lrmd_private;

	native->proxy_callback = callback;
	native->proxy_callback_userdata = userdata;
	}

	void
	lrmd_internal_proxy_dispatch(lrmd_t lrmd, xmlNode msg)
	{
	lrmd_private_t *native = lrmd->lrmd_private;

	if (native->proxy_callback) {
	crm_log_xml_trace(msg, "PROXY_INBOUND");
	native->proxy_callback(lrmd, native->proxy_callback_userdata, msg);
	}
	}

	int
	lrmd_internal_proxy_send(lrmd_t * lrmd, xmlNode *msg)
	{
	if (lrmd == NULL) {
	return -ENOTCONN;
	}
	crm_xml_add(msg, F_LRMD_OPERATION, CRM_OP_IPC_FWD);

	crm_log_xml_trace(msg, "PROXY_OUTBOUND");
	return lrmd_send_xml_no_reply(lrmd, msg);
	}

	static int
	stonith_get_metadata(const char provider, const char type, char **output)
	{
	int rc = pcmk_ok;
	stonith_t *stonith_api = stonith_api_new();

	if (stonith_api == NULL) {
	crm_err("Could not get fence agent meta-data: API memory allocation failed");
	return -ENOMEM;
	}

	rc = stonith_api->cmds->metadata(stonith_api, st_opt_sync_call, type,
	provider, output, 0);
	if ((rc == pcmk_ok) && (*output == NULL)) {
	rc = -EIO;
	}
	stonith_api->cmds->free(stonith_api);
	return rc;
	}

	static int
	lrmd_api_get_metadata(lrmd_t lrmd, const char standard, const char *provider,
	const char type, char *output,
	enum lrmd_call_options options)
	{
	return lrmd->cmds->get_metadata_params(lrmd, standard, provider, type,
	output, options, NULL);
	}

	static int
	lrmd_api_get_metadata_params(lrmd_t lrmd, const char standard,
	const char provider, const char type,
	char **output, enum lrmd_call_options options,
	lrmd_key_value_t *params)
	{
	svc_action_t *action = NULL;
	GHashTable *params_table = NULL;

	if (!standard \|\| !type) {
	lrmd_key_value_freeall(params);
	return -EINVAL;
	}

	if (pcmk__str_eq(standard, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_casei)) {
	lrmd_key_value_freeall(params);
	return stonith_get_metadata(provider, type, output);
	}

	params_table = pcmk__strkey_table(free, free);
	for (const lrmd_key_value_t *param = params; param; param = param->next) {
	g_hash_table_insert(params_table, strdup(param->key), strdup(param->value));
	}
	action = resources_action_create(type, standard, provider, type,
	CRMD_ACTION_METADATA, 0,
	CRMD_METADATA_CALL_TIMEOUT, params_table,
	0);
	lrmd_key_value_freeall(params);

	if (action == NULL) {
	crm_err("Unable to retrieve meta-data for %s:%s:%s",
	standard, provider, type);
	return -EINVAL;
	}

	if (!services_action_sync(action)) {
	crm_err("Failed to retrieve meta-data for %s:%s:%s",
	standard, provider, type);
	services_action_free(action);
	return -EIO;
	}

	if (!action->stdout_data) {
	crm_err("Failed to receive meta-data for %s:%s:%s",
	standard, provider, type);
	services_action_free(action);
	return -EIO;
	}

	*output = strdup(action->stdout_data);
	services_action_free(action);

	return pcmk_ok;
	}

	static int
	lrmd_api_exec(lrmd_t lrmd, const char rsc_id, const char *action,
	const char *userdata, guint interval_ms,
	int timeout, /* ms */
	int start_delay, /* ms */
	enum lrmd_call_options options, lrmd_key_value_t * params)
	{
	int rc = pcmk_ok;
	xmlNode *data = create_xml_node(NULL, F_LRMD_RSC);
	xmlNode *args = create_xml_node(data, XML_TAG_ATTRS);
	lrmd_key_value_t *tmp = NULL;

	crm_xml_add(data, F_LRMD_ORIGIN, __func__);
	crm_xml_add(data, F_LRMD_RSC_ID, rsc_id);
	crm_xml_add(data, F_LRMD_RSC_ACTION, action);
	crm_xml_add(data, F_LRMD_RSC_USERDATA_STR, userdata);
	crm_xml_add_ms(data, F_LRMD_RSC_INTERVAL, interval_ms);
	crm_xml_add_int(data, F_LRMD_TIMEOUT, timeout);
	crm_xml_add_int(data, F_LRMD_RSC_START_DELAY, start_delay);

	for (tmp = params; tmp; tmp = tmp->next) {
	hash2smartfield((gpointer) tmp->key, (gpointer) tmp->value, args);
	}

	rc = lrmd_send_command(lrmd, LRMD_OP_RSC_EXEC, data, NULL, timeout, options, TRUE);
	free_xml(data);

	lrmd_key_value_freeall(params);
	return rc;
	}

	/* timeout is in ms */
	static int
	lrmd_api_exec_alert(lrmd_t lrmd, const char alert_id, const char *alert_path,
	int timeout, lrmd_key_value_t *params)
	{
	int rc = pcmk_ok;
	xmlNode *data = create_xml_node(NULL, F_LRMD_ALERT);
	xmlNode *args = create_xml_node(data, XML_TAG_ATTRS);
	lrmd_key_value_t *tmp = NULL;

	crm_xml_add(data, F_LRMD_ORIGIN, __func__);
	crm_xml_add(data, F_LRMD_ALERT_ID, alert_id);
	crm_xml_add(data, F_LRMD_ALERT_PATH, alert_path);
	crm_xml_add_int(data, F_LRMD_TIMEOUT, timeout);

	for (tmp = params; tmp; tmp = tmp->next) {
	hash2smartfield((gpointer) tmp->key, (gpointer) tmp->value, args);
	}

	rc = lrmd_send_command(lrmd, LRMD_OP_ALERT_EXEC, data, NULL, timeout,
	lrmd_opt_notify_orig_only, TRUE);
	free_xml(data);

	lrmd_key_value_freeall(params);
	return rc;
	}

	static int
	lrmd_api_cancel(lrmd_t lrmd, const char rsc_id, const char *action,
	guint interval_ms)
	{
	int rc = pcmk_ok;
	xmlNode *data = create_xml_node(NULL, F_LRMD_RSC);

	crm_xml_add(data, F_LRMD_ORIGIN, __func__);
	crm_xml_add(data, F_LRMD_RSC_ACTION, action);
	crm_xml_add(data, F_LRMD_RSC_ID, rsc_id);
	crm_xml_add_ms(data, F_LRMD_RSC_INTERVAL, interval_ms);
	rc = lrmd_send_command(lrmd, LRMD_OP_RSC_CANCEL, data, NULL, 0, 0, TRUE);
	free_xml(data);
	return rc;
	}

	static int
	list_stonith_agents(lrmd_list_t ** resources)
	{
	int rc = 0;
	stonith_t *stonith_api = stonith_api_new();
	stonith_key_value_t *stonith_resources = NULL;
	stonith_key_value_t *dIter = NULL;

	if (stonith_api == NULL) {
	crm_err("Could not list fence agents: API memory allocation failed");
	return -ENOMEM;
	}
	stonith_api->cmds->list_agents(stonith_api, st_opt_sync_call, NULL,
	&stonith_resources, 0);
	stonith_api->cmds->free(stonith_api);

	for (dIter = stonith_resources; dIter; dIter = dIter->next) {
	rc++;
	if (resources) {
	resources = lrmd_list_add(resources, dIter->value);
	}
	}

	stonith_key_value_freeall(stonith_resources, 1, 0);
	return rc;
	}

	static int
	lrmd_api_list_agents(lrmd_t * lrmd, lrmd_list_t ** resources, const char *class,
	const char *provider)
	{
	int rc = 0;
	int stonith_count = 0; // Initially, whether to include stonith devices

	if (pcmk__str_eq(class, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_casei)) {
	stonith_count = 1;

	} else {
	GList *gIter = NULL;
	GList *agents = resources_list_agents(class, provider);

	for (gIter = agents; gIter != NULL; gIter = gIter->next) {
	resources = lrmd_list_add(resources, (const char *)gIter->data);
	rc++;
	}
	g_list_free_full(agents, free);

	if (!class) {
	stonith_count = 1;
	}
	}

	if (stonith_count) {
	// Now, if stonith devices are included, how many there are
	stonith_count = list_stonith_agents(resources);
	if (stonith_count > 0) {
	rc += stonith_count;
	}
	}
	if (rc == 0) {
	crm_notice("No agents found for class %s", class);
	rc = -EPROTONOSUPPORT;
	}
	return rc;
	}

	static int
	does_provider_have_agent(const char agent, const char provider, const char *class)
	{
	int found = 0;
	GList *agents = NULL;
	GList *gIter2 = NULL;

	agents = resources_list_agents(class, provider);
	for (gIter2 = agents; gIter2 != NULL; gIter2 = gIter2->next) {
	if (pcmk__str_eq(agent, gIter2->data, pcmk__str_casei)) {
	found = 1;
	}
	}
	g_list_free_full(agents, free);

	return found;
	}

	static int
	lrmd_api_list_ocf_providers(lrmd_t * lrmd, const char agent, lrmd_list_t * providers)
	{
	int rc = pcmk_ok;
	char *provider = NULL;
	GList *ocf_providers = NULL;
	GList *gIter = NULL;

	ocf_providers = resources_list_providers(PCMK_RESOURCE_CLASS_OCF);

	for (gIter = ocf_providers; gIter != NULL; gIter = gIter->next) {
	provider = gIter->data;
	if (!agent \|\| does_provider_have_agent(agent, provider,
	PCMK_RESOURCE_CLASS_OCF)) {
	providers = lrmd_list_add(providers, (const char *)gIter->data);
	rc++;
	}
	}

	g_list_free_full(ocf_providers, free);
	return rc;
	}

	static int
	lrmd_api_list_standards(lrmd_t * lrmd, lrmd_list_t ** supported)
	{
	int rc = 0;
	GList *standards = NULL;
	GList *gIter = NULL;

	standards = resources_list_standards();

	for (gIter = standards; gIter != NULL; gIter = gIter->next) {
	supported = lrmd_list_add(supported, (const char *)gIter->data);
	rc++;
	}

	if (list_stonith_agents(NULL) > 0) {
	supported = lrmd_list_add(supported, PCMK_RESOURCE_CLASS_STONITH);
	rc++;
	}

	g_list_free_full(standards, free);
	return rc;
	}

	lrmd_t *
	lrmd_api_new(void)
	{
	lrmd_t *new_lrmd = NULL;
	lrmd_private_t *pvt = NULL;

	new_lrmd = calloc(1, sizeof(lrmd_t));
	pvt = calloc(1, sizeof(lrmd_private_t));
	pvt->remote = calloc(1, sizeof(pcmk__remote_t));
	new_lrmd->cmds = calloc(1, sizeof(lrmd_api_operations_t));

	pvt->type = pcmk__client_ipc;
	new_lrmd->lrmd_private = pvt;

	new_lrmd->cmds->connect = lrmd_api_connect;
	new_lrmd->cmds->connect_async = lrmd_api_connect_async;
	new_lrmd->cmds->is_connected = lrmd_api_is_connected;
	new_lrmd->cmds->poke_connection = lrmd_api_poke_connection;
	new_lrmd->cmds->disconnect = lrmd_api_disconnect;
	new_lrmd->cmds->register_rsc = lrmd_api_register_rsc;
	new_lrmd->cmds->unregister_rsc = lrmd_api_unregister_rsc;
	new_lrmd->cmds->get_rsc_info = lrmd_api_get_rsc_info;
	new_lrmd->cmds->get_recurring_ops = lrmd_api_get_recurring_ops;
	new_lrmd->cmds->set_callback = lrmd_api_set_callback;
	new_lrmd->cmds->get_metadata = lrmd_api_get_metadata;
	new_lrmd->cmds->exec = lrmd_api_exec;
	new_lrmd->cmds->cancel = lrmd_api_cancel;
	new_lrmd->cmds->list_agents = lrmd_api_list_agents;
	new_lrmd->cmds->list_ocf_providers = lrmd_api_list_ocf_providers;
	new_lrmd->cmds->list_standards = lrmd_api_list_standards;
	new_lrmd->cmds->exec_alert = lrmd_api_exec_alert;
	new_lrmd->cmds->get_metadata_params = lrmd_api_get_metadata_params;

	return new_lrmd;
	}

	lrmd_t *
	lrmd_remote_api_new(const char nodename, const char server, int port)
	{
	#ifdef HAVE_GNUTLS_GNUTLS_H
	lrmd_t *new_lrmd = lrmd_api_new();
	lrmd_private_t *native = new_lrmd->lrmd_private;

	if (!nodename && !server) {
	lrmd_api_delete(new_lrmd);
	return NULL;
	}

	native->type = pcmk__client_tls;
	native->remote_nodename = nodename ? strdup(nodename) : strdup(server);
	native->server = server ? strdup(server) : strdup(nodename);
	native->port = port;
	if (native->port == 0) {
	native->port = crm_default_remote_port();
	}

	return new_lrmd;
	#else
	crm_err("Cannot communicate with Pacemaker Remote because GnuTLS is not enabled for this build");
	return NULL;
	#endif
	}

	void
	lrmd_api_delete(lrmd_t * lrmd)
	{
	if (!lrmd) {
	return;
	}
	lrmd->cmds->disconnect(lrmd); /* no-op if already disconnected */
	free(lrmd->cmds);
	if (lrmd->lrmd_private) {
	lrmd_private_t *native = lrmd->lrmd_private;

	#ifdef HAVE_GNUTLS_GNUTLS_H
	free(native->server);
	#endif
	free(native->remote_nodename);
	free(native->remote);
	free(native->token);
	free(native->peer_version);
	}

	free(lrmd->lrmd_private);
	free(lrmd);
	}

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