/* 
 * Copyright (C) 2004 Andrew Beekhof <andrew@beekhof.net>
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <crm_internal.h>

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

#include <crm/crm.h>
#include <crm/cib.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>

#include <crmd.h>
#include <crmd_fsa.h>
#include <crmd_messages.h>
#include <crmd_callbacks.h>
#include <crmd_lrm.h>

#include <lrm/lrm_api.h>
#include <lrm/raexec.h>


struct recurring_op_s 
{
		char *rsc_id;
		char *op_key;
		int   call_id;
		int   interval;
		gboolean remove;
		gboolean cancelled;
};

struct pending_deletion_op_s 
{
	char           *rsc;
	ha_msg_input_t *input;
};

struct delete_event_s 
{
	int   rc;
	const char *rsc;
};

char *make_stop_id(const char *rsc, int call_id);
void cib_rsc_callback(xmlNode *msg, int call_id, int rc, xmlNode *output, void *user_data);

gboolean build_operation_update(
    xmlNode *rsc_list, lrm_rsc_t *rsc, lrm_op_t *op, const char *src, int lpc, int level);

gboolean build_active_RAs(xmlNode *rsc_list);
gboolean is_rsc_active(const char *rsc_id);

int do_update_resource(lrm_op_t *op);
gboolean process_lrm_event(lrm_op_t *op);

void do_lrm_rsc_op(lrm_rsc_t *rsc, const char *operation,
		   xmlNode *msg, xmlNode *request);

lrm_op_t *construct_op(
	xmlNode *rsc_op, const char *rsc_id, const char *operation);

void send_direct_ack(const char *to_host, const char *to_sys,
		     lrm_rsc_t *rsc, lrm_op_t* op, const char *rsc_id);

void free_recurring_op(gpointer value);
void free_deletion_op(gpointer value);

GHashTable *resources = NULL;
GHashTable *pending_ops = NULL;
GHashTable *deletion_ops = NULL;
GCHSource *lrm_source = NULL;

int num_lrm_register_fails = 0;
int max_lrm_register_fails = 30;

void lrm_connection_destroy(gpointer user_data)
{
    if(is_set(fsa_input_register, R_LRM_CONNECTED)) {
	crm_crit("LRM Connection failed");
	register_fsa_input(C_FSA_INTERNAL, I_ERROR, NULL);
	clear_bit_inplace(fsa_input_register, R_LRM_CONNECTED);
	
    } else {
	crm_info("LRM Connection disconnected");
    }
    
    lrm_source = NULL;
}

/*	 A_LRM_CONNECT	*/
void
do_lrm_control(long long action,
	       enum crmd_fsa_cause cause,
	       enum crmd_fsa_state cur_state,
	       enum crmd_fsa_input current_input,
	       fsa_data_t *msg_data)
{
	if(fsa_lrm_conn == NULL) {
	    register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
	    return;
	}

	if(action & A_LRM_DISCONNECT) {
		if(verify_stopped(cur_state, LOG_INFO) == FALSE) {
		    crmd_fsa_stall(NULL);
		    return;
		}
		
		if(is_set(fsa_input_register, R_LRM_CONNECTED)) {
		    clear_bit_inplace(fsa_input_register, R_LRM_CONNECTED);
		    fsa_lrm_conn->lrm_ops->signoff(fsa_lrm_conn);
		    crm_info("Disconnected from the LRM");
		}

		/* TODO: Clean up the hashtable */
	}

	if(action & A_LRM_CONNECT) {
		int ret = HA_OK;
		
		deletion_ops = g_hash_table_new_full(
			g_str_hash, g_str_equal,
			g_hash_destroy_str, free_deletion_op);

		pending_ops = g_hash_table_new_full(
			g_str_hash, g_str_equal,
			g_hash_destroy_str, free_recurring_op);

		resources = g_hash_table_new_full(
			g_str_hash, g_str_equal,
			g_hash_destroy_str, g_hash_destroy_str);
		
		if(ret == HA_OK) {
			crm_debug("Connecting to the LRM");
			ret = fsa_lrm_conn->lrm_ops->signon(
				fsa_lrm_conn, CRM_SYSTEM_CRMD);
		}
		
		if(ret != HA_OK) {
			if(++num_lrm_register_fails < max_lrm_register_fails) {
				crm_warn("Failed to sign on to the LRM %d"
					 " (%d max) times",
					 num_lrm_register_fails,
					 max_lrm_register_fails);
				
				crm_timer_start(wait_timer);
				crmd_fsa_stall(NULL);
				return;
			}
		}

		if(ret == HA_OK) {
			crm_debug_4("LRM: set_lrm_callback...");
			ret = fsa_lrm_conn->lrm_ops->set_lrm_callback(
				fsa_lrm_conn, lrm_op_callback);
			if(ret != HA_OK) {
				crm_err("Failed to set LRM callbacks");
			}
		}
		
		if(ret != HA_OK) {
			crm_err("Failed to sign on to the LRM %d"
				" (max) times", num_lrm_register_fails);
			register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
			return;
		}

		/* TODO: create a destroy handler that causes
		 * some recovery to happen
		 */
		lrm_source = G_main_add_IPC_Channel(
			G_PRIORITY_LOW,
			fsa_lrm_conn->lrm_ops->ipcchan(fsa_lrm_conn),
			FALSE, lrm_dispatch, fsa_lrm_conn,
			lrm_connection_destroy);

		set_bit_inplace(fsa_input_register, R_LRM_CONNECTED);
		crm_debug("LRM connection established");
		
	}	

	if(action & ~(A_LRM_CONNECT|A_LRM_DISCONNECT)) {
		crm_err("Unexpected action %s in %s",
		       fsa_action2string(action), __FUNCTION__);
	}
}

static void
ghash_print_pending(gpointer key, gpointer value, gpointer user_data) 
{
	const char *stop_id = key;
	int *log_level = user_data;
	struct recurring_op_s *pending = value;
	do_crm_log(*log_level, "Pending action: %s (%s)", stop_id, pending->op_key);
}

static void
ghash_print_pending_for_rsc(gpointer key, gpointer value, gpointer user_data) 
{
	const char *stop_id = key;
	char *rsc = user_data;
	struct recurring_op_s *pending = value;
	if(safe_str_eq(rsc, pending->rsc_id)) {
	    do_crm_log(LOG_NOTICE, "%sction %s (%s) incomplete at shutdown",
		       pending->interval==0?"A":"Recurring a", stop_id, pending->op_key);
	}
}

static void
ghash_count_pending(gpointer key, gpointer value, gpointer user_data) 
{
	int *counter = user_data;
	struct recurring_op_s *pending = value;

	if(pending->interval > 0) {
	    /* Ignore recurring actions in the shutdown calculations */
	    return;
	}

	(*counter)++;
}

gboolean
verify_stopped(enum crmd_fsa_state cur_state, int log_level)
{
	int counter = 0;
	gboolean rc = TRUE;
	GListPtr lrm_list = NULL;

	crm_debug("Checking for active resources before exit");

	if(cur_state == S_TERMINATE) {
		log_level = LOG_ERR;
	}	

	if(pending_ops) {
	    g_hash_table_foreach(pending_ops, ghash_count_pending, &counter);
	}
	
	if(counter > 0) {
	    rc = FALSE;
	    do_crm_log(log_level,
		       "%d pending LRM operations at shutdown%s",
		       counter, cur_state == S_TERMINATE?"":"... waiting");
	    
	    if(cur_state == S_TERMINATE || !is_set(fsa_input_register, R_SENT_RSC_STOP)) {
		g_hash_table_foreach(
		    pending_ops, ghash_print_pending, &log_level);
	    }
	    goto bail;
	}

	if(is_set(fsa_input_register, R_LRM_CONNECTED)) {
		lrm_list = fsa_lrm_conn->lrm_ops->get_all_rscs(fsa_lrm_conn);
	}

	slist_iter(
		rsc_id, char, lrm_list, lpc,
		if(is_rsc_active(rsc_id) == FALSE) {
			continue;
		}
		
		crm_err("Resource %s was active at shutdown."
			"  You may ignore this error if it is unmanaged.",
			rsc_id);

		g_hash_table_foreach(
		    pending_ops, ghash_print_pending_for_rsc, rsc_id);
	    );

	slist_destroy(char, rid, lrm_list, free(rid));
	
  bail:
	set_bit_inplace(fsa_input_register, R_SENT_RSC_STOP);

	if(cur_state == S_TERMINATE) {
	    rc = TRUE;
	}

	return rc;
}

static char *
get_rsc_metadata(const char *type, const char *class, const char *provider)
{
	char *metadata = NULL;
	CRM_CHECK(type != NULL, return NULL);
	CRM_CHECK(class != NULL, return NULL);
	if(provider == NULL) {
		provider = "heartbeat";
	}

	crm_debug_2("Retreiving metadata for %s::%s:%s", type, class, provider);
	metadata = fsa_lrm_conn->lrm_ops->get_rsc_type_metadata(
		fsa_lrm_conn, class, type, provider);

	if(metadata) {
	    /* copy the metadata because the LRM likes using
	     *   g_alloc instead of cl_malloc
	     */
	    char *m_copy = crm_strdup(metadata);
	    g_free(metadata);
	    metadata = m_copy;
	    
	} else {
	    crm_warn("No metadata found for %s::%s:%s", type, class, provider);
	}		

	return metadata;
}

typedef struct reload_data_s 
{
	char *key;
	char *metadata;
	time_t last_query;
	gboolean can_reload;
	GListPtr restart_list;
} reload_data_t;


static void g_hash_destroy_reload(gpointer data)
{
    reload_data_t *reload = data;
    crm_free(reload->key);
    crm_free(reload->metadata);
    slist_destroy(char, child, reload->restart_list, crm_free(child));
    crm_free(reload);
}


GHashTable *reload_hash = NULL;
static GListPtr
get_rsc_restart_list(lrm_rsc_t *rsc, lrm_op_t *op) 
{
	int len = 0;
	char *key = NULL;
	char *copy = NULL;
	const char *value = NULL;
	const char *provider = NULL;

	xmlNode *params = NULL;
	xmlNode *actions = NULL;
	xmlNode *metadata = NULL;

	time_t now = time(NULL);
	reload_data_t *reload = NULL;
	
	if(reload_hash == NULL) {
	    reload_hash = g_hash_table_new_full(
		g_str_hash, g_str_equal, NULL, g_hash_destroy_reload);
	}

	provider = rsc->provider;
	if(provider == NULL) {
	    provider = "heartbeat";
	}
	
	len = strlen(rsc->type) + strlen(rsc->class) + strlen(provider) + 4;
	crm_malloc(key, len);
	snprintf(key, len, "%s::%s:%s", rsc->type, rsc->class, provider);
	
	reload = g_hash_table_lookup(reload_hash, key);

	if(reload
	   && ((now - 9) > reload->last_query)
	   && safe_str_eq(op->op_type, RSC_START)) {
	    reload = NULL; /* re-query */
	}
	
	if(reload == NULL) {
	    crm_malloc0(reload, sizeof(reload_data_t));
	    g_hash_table_replace(reload_hash, key, reload);

	    reload->last_query = now;
	    reload->key = key; key = NULL;
	    reload->metadata = get_rsc_metadata(rsc->type, rsc->class, provider);

	    metadata = string2xml(reload->metadata);
	    if(metadata == NULL) {
		crm_err("Metadata for %s::%s:%s is not valid XML",
			rsc->provider, rsc->class, rsc->type);
		goto cleanup;
	    }

	    actions = find_xml_node(metadata, "actions", TRUE);
	    
	    xml_child_iter_filter(
		actions, action, "action",
		value = crm_element_value(action, "name");
		if(safe_str_eq("reload", value)) {
		    reload->can_reload = TRUE;
		    break;
		}
		);
	    
	    if(reload->can_reload == FALSE) {
		goto cleanup;
	    }

	    params = find_xml_node(metadata, "parameters", TRUE);
	    xml_child_iter_filter(
		params, param, "parameter",
		value = crm_element_value(param, "unique");
		if(crm_is_true(value)) {
		    value = crm_element_value(param, "name");
		    if(value == NULL) {
			crm_err("%s: NULL param", key);
			continue;
		    }
		    crm_debug("Attr %s is not reloadable", value);
		    copy = crm_strdup(value);
		    CRM_CHECK(copy != NULL, continue);
		    reload->restart_list = g_list_append(reload->restart_list, copy);
		}
		);
	}
	
  cleanup:
	crm_free(key);
	free_xml(metadata);
	return reload?reload->restart_list:NULL;
}

static void
append_digest(lrm_rsc_t *rsc, lrm_op_t *op, xmlNode *update, const char *version, const char *magic, int level) 
{
    /* this will enable us to later determine that the
     *   resource's parameters have changed and we should force
     *   a restart
     */
    char *digest = NULL;
    xmlNode *args_xml = NULL;

    if(op->params == NULL) {
	return;
    }
    
    args_xml = create_xml_node(NULL, XML_TAG_PARAMS);
    g_hash_table_foreach(op->params, hash2field, args_xml);
    filter_action_parameters(args_xml, version);
    digest = calculate_xml_digest(args_xml, TRUE, FALSE);

#if 0
    if(level < crm_log_level
       && op->interval == 0
       && crm_str_eq(op->op_type, CRMD_ACTION_START, TRUE)) {
	char *digest_source = dump_xml_unformatted(args_xml);
	do_crm_log(level, "Calculated digest %s for %s (%s). Source: %s\n", 
		   digest, ID(update), magic, digest_source);
	crm_free(digest_source);
    }
#endif
    crm_xml_add(update, XML_LRM_ATTR_OP_DIGEST, digest);

    free_xml(args_xml);
    crm_free(digest);
}

static void
append_restart_list(lrm_rsc_t *rsc, lrm_op_t *op, xmlNode *update, const char *version) 
{
	int len = 0;
	char *list = NULL;
	char *digest = NULL;
	const char *value = NULL;
	gboolean non_empty = FALSE;
	xmlNode *restart = NULL;
	GListPtr restart_list = NULL;

	if(op->interval > 0) {
		/* monitors are not reloadable */
		return;

	} else if(op->params == NULL) {
		crm_debug("%s has no parameters", ID(update));
		return;

	} else if(rsc == NULL) {
		return;

	} else if(crm_str_eq(CRMD_ACTION_START, op->op_type, TRUE) == FALSE) {
		/* only starts are potentially reloadable */
		return;
		
	} else if(compare_version("1.0.8", version) > 0) {
		/* Caller version does not support reloads */
		return;
	}

	restart_list = get_rsc_restart_list(rsc, op);
	if(restart_list == NULL) {
		/* Resource does not support reloads */
		return;
	}

	restart = create_xml_node(NULL, XML_TAG_PARAMS);
	slist_iter(param, const char, restart_list, lpc,
		   int start = len;
		   CRM_CHECK(param != NULL, continue);
		   value = g_hash_table_lookup(op->params, param);
		   if(value != NULL) {
			   non_empty = TRUE;
			   crm_xml_add(restart, param, value);
		   }
		   len += strlen(param) + 2;
		   crm_realloc(list, len+1);
		   sprintf(list+start, " %s ", param);
		);
	
	digest = calculate_xml_digest(restart, TRUE, FALSE);
	crm_xml_add(update, XML_LRM_ATTR_OP_RESTART, list);
	crm_xml_add(update, XML_LRM_ATTR_RESTART_DIGEST, digest);

#if 0
	crm_debug("%s: %s, %s", rsc->id, digest, list);
	if(non_empty) {
		crm_log_xml_debug(restart, "restart digest source");
	}
#endif
	
	free_xml(restart);
	crm_free(digest);
	crm_free(list);
}

gboolean
build_operation_update(
    xmlNode *xml_rsc, lrm_rsc_t *rsc, lrm_op_t *op, const char *src, int lpc, int level)
{
	char *magic = NULL;
	const char *task = NULL;
	xmlNode *xml_op = NULL;
	char *op_id = NULL;
	char *local_user_data = NULL;
	const char *caller_version = NULL;	

	CRM_CHECK(op != NULL, return FALSE);
	crm_debug_2("%s: Updating resouce %s after %s %s op",
		  src, op->rsc_id, op_status2text(op->op_status), op->op_type);

	if(op->op_status == LRM_OP_CANCELLED) {
		crm_debug_3("Ignoring cancelled op");
		return TRUE;
	}

	if(AM_I_DC) {
		caller_version = CRM_FEATURE_SET;

	} else if(fsa_our_dc_version != NULL) {
		caller_version = fsa_our_dc_version;

	} else if(op->params == NULL) {
		caller_version = fsa_our_dc_version;

	} else {
		/* there is a small risk in formerly mixed clusters that
		 *   it will be sub-optimal.
		 * however with our upgrade policy, the update we send
		 *   should still be completely supported anyway
		 */
		caller_version = g_hash_table_lookup(
			op->params, XML_ATTR_CRM_VERSION);
		crm_warn("Falling back to operation originator version: %s",
			 caller_version);
	}
	crm_debug_3("DC version: %s", caller_version);

	task = op->op_type;
	/* remap the task name under various scenarios
	 * this makes life easier for the PE when its trying determin the current state 
	 */
	if(crm_str_eq(task, "reload", TRUE)) {
		if(op->op_status == LRM_OP_DONE) {
			task = CRMD_ACTION_START;
		} else {
			task = CRMD_ACTION_STATUS;
		}

	} else if(crm_str_eq(task, CRMD_ACTION_MIGRATE, TRUE)) {
		/* if the migrate_from fails it will have enough info to do the right thing */
		if(op->op_status == LRM_OP_DONE) {
			task = CRMD_ACTION_STOP;
		} else {
			task = CRMD_ACTION_STATUS;
		}

	} else if(op->op_status == LRM_OP_DONE
		  && crm_str_eq(task, CRMD_ACTION_MIGRATED, TRUE)) {
		task = CRMD_ACTION_START;

	} else if(crm_str_eq(task, CRMD_ACTION_NOTIFY, TRUE)) {
		const char *n_type = crm_meta_value(op->params, "notify_type");
		const char *n_task = crm_meta_value(op->params, "notify_operation");
		CRM_DEV_ASSERT(n_type != NULL);
		CRM_DEV_ASSERT(n_task != NULL);
		op_id = generate_notify_key(op->rsc_id, n_type, n_task);

		/* these are not yet allowed to fail */
		op->op_status = LRM_OP_DONE;
		op->rc = 0;
		
	}

	if (op_id == NULL) {
		op_id = generate_op_key(op->rsc_id, task, op->interval);
	}

	xml_op = find_entity(xml_rsc, XML_LRM_TAG_RSC_OP, op_id);
	if(xml_op != NULL) {
		crm_log_xml(LOG_DEBUG, "Replacing existing entry", xml_op);
		
	} else {
		xml_op = create_xml_node(xml_rsc, XML_LRM_TAG_RSC_OP);
	}
	
	if(op->user_data == NULL) {
		crm_debug("Generating fake transition key for:"
			  " %s_%s_%d %d from %s",
			  op->rsc_id, op->op_type, op->interval, op->call_id,
			  op->app_name);
		local_user_data = generate_transition_key(-1, op->call_id, 0, FAKE_TE_ID);
		op->user_data = local_user_data;
	}
	
	magic = generate_transition_magic(op->user_data, op->op_status, op->rc);
	
	crm_xml_add(xml_op, XML_ATTR_ID,		op_id);
	crm_xml_add(xml_op, XML_LRM_ATTR_TASK,		task);
	crm_xml_add(xml_op, XML_ATTR_ORIGIN,		src);
	crm_xml_add(xml_op, XML_ATTR_CRM_VERSION,	caller_version);
	crm_xml_add(xml_op, XML_ATTR_TRANSITION_KEY,	op->user_data);
	crm_xml_add(xml_op, XML_ATTR_TRANSITION_MAGIC,	magic);

	crm_xml_add_int(xml_op, XML_LRM_ATTR_CALLID,	op->call_id);
	crm_xml_add_int(xml_op, XML_LRM_ATTR_RC,	op->rc);
	crm_xml_add_int(xml_op, XML_LRM_ATTR_OPSTATUS,	op->op_status);
	crm_xml_add_int(xml_op, XML_LRM_ATTR_INTERVAL,	op->interval);

	if(compare_version("2.1", caller_version) <= 0) {
	    if(op->t_run || op->t_rcchange || op->exec_time || op->queue_time) {
		crm_debug_2("Timing data (%s_%s_%d): last=%lu change=%lu exec=%lu queue=%lu",
			    op->rsc_id, op->op_type, op->interval,
			    op->t_run, op->t_rcchange, op->exec_time, op->queue_time);
	
		crm_xml_add_int(xml_op, "last-run",       op->t_run);
		crm_xml_add_int(xml_op, "last-rc-change", op->t_rcchange);
		crm_xml_add_int(xml_op, "exec-time",      op->exec_time);
		crm_xml_add_int(xml_op, "queue-time",     op->queue_time);
	    }
	}
	
	append_digest(rsc, op, xml_op, caller_version, magic, level);
	append_restart_list(rsc, op, xml_op, caller_version);
	
	if(op->op_status != LRM_OP_DONE
	   && crm_str_eq(op->op_type, CRMD_ACTION_MIGRATED, TRUE)) {
		const char *host = crm_meta_value(op->params, "migrate_source_uuid");
		crm_xml_add(xml_op, CRMD_ACTION_MIGRATED, host);
	}	
	
	if(local_user_data) {
		crm_free(local_user_data);
		op->user_data = NULL;
	}
	crm_free(magic);	
	crm_free(op_id);
	return TRUE;
}

gboolean
is_rsc_active(const char *rsc_id) 
{
	GList *op_list  = NULL;
	gboolean active = FALSE;
	lrm_rsc_t *the_rsc = NULL;
	state_flag_t cur_state = 0;
	int max_call_id = -1;
	
	if(fsa_lrm_conn == NULL) {
		return FALSE;
	}

	the_rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, rsc_id);

	crm_debug_3("Processing lrm_rsc_t entry %s", rsc_id);
	
	if(the_rsc == NULL) {
		crm_err("NULL resource returned from the LRM");
		return FALSE;
	}
	
	op_list = the_rsc->ops->get_cur_state(the_rsc, &cur_state);
	
	crm_debug_3("\tcurrent state:%s",cur_state==LRM_RSC_IDLE?"Idle":"Busy");
	
	slist_iter(
		op, lrm_op_t, op_list, llpc,
		
		crm_debug_2("Processing op %s_%d (%d) for %s (status=%d, rc=%d)", 
			    op->op_type, op->interval, op->call_id, the_rsc->id,
			    op->op_status, op->rc);
		
		CRM_ASSERT(max_call_id <= op->call_id);			
		if(op->rc == EXECRA_OK
		   && safe_str_eq(op->op_type, CRMD_ACTION_STOP)) {
			active = FALSE;
			
		} else if(op->rc == EXECRA_OK
			  && safe_str_eq(op->op_type, CRMD_ACTION_MIGRATE)) {
			/* a stricter check is too complex...
			 * leave that to the PE
			 */
			active = FALSE;
			
		} else if(op->rc == EXECRA_NOT_RUNNING) {
			active = FALSE;

		} else {
			active = TRUE;
		}
		
		max_call_id = op->call_id;
		lrm_free_op(op);
		);

	g_list_free(op_list);
	lrm_free_rsc(the_rsc);

	return active;
}


gboolean
build_active_RAs(xmlNode *rsc_list)
{
	GList *op_list  = NULL;
	GList *lrm_list = NULL;
	gboolean found_op = FALSE;
	state_flag_t cur_state = 0;
	
	if(fsa_lrm_conn == NULL) {
		return FALSE;
	}

	lrm_list = fsa_lrm_conn->lrm_ops->get_all_rscs(fsa_lrm_conn);

	slist_iter(
		rid, char, lrm_list, lpc,

		int max_call_id = -1;
		xmlNode *xml_rsc = NULL;
		lrm_rsc_t *the_rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, rid);
		
		if(the_rsc == NULL) {
		    crm_err("NULL resource returned from the LRM: %s", rid);
		    continue;
		}

		xml_rsc = create_xml_node(rsc_list, XML_LRM_TAG_RESOURCE);
		crm_xml_add(xml_rsc, XML_ATTR_ID, the_rsc->id);
		crm_xml_add(xml_rsc, XML_ATTR_TYPE, the_rsc->type);
		crm_xml_add(xml_rsc, XML_AGENT_ATTR_CLASS, the_rsc->class);
		crm_xml_add(xml_rsc, XML_AGENT_ATTR_PROVIDER,the_rsc->provider);

		op_list = the_rsc->ops->get_cur_state(the_rsc, &cur_state);

		slist_iter(
			op, lrm_op_t, op_list, llpc,

			if(max_call_id < op->call_id) {
				build_operation_update(
				    xml_rsc, the_rsc, op, __FUNCTION__, llpc, LOG_DEBUG_2);

			} else if(max_call_id > op->call_id) {
				crm_err("Bad call_id in list=%d. Previous call_id=%d",
					op->call_id, max_call_id);

			} else {
				crm_warn("lrm->get_cur_state() returned"
					 " duplicate entries for call_id=%d",
					 op->call_id);
			}
			max_call_id = op->call_id;
			found_op = TRUE;
			lrm_free_op(op);
			);
		
		if(found_op == FALSE && g_list_length(op_list) != 0) {
			crm_err("Could not properly determin last op"
				" for %s from %d entries", the_rsc->id,
				g_list_length(op_list));
		}

		g_list_free(op_list);
		lrm_free_rsc(the_rsc);
		);

	slist_destroy(char, rid, lrm_list, free(rid));

	return TRUE;
}

xmlNode*
do_lrm_query(gboolean is_replace)
{
	gboolean shut_down = FALSE;
	xmlNode *xml_result= NULL;
	xmlNode *xml_state = NULL;
	xmlNode *xml_data  = NULL;
	xmlNode *rsc_list  = NULL;
	const char *exp_state = CRMD_STATE_ACTIVE;

	if(is_set(fsa_input_register, R_SHUTDOWN)) {
		exp_state = CRMD_STATE_INACTIVE;
		shut_down = TRUE;
	}
	
	xml_state = create_node_state(
		fsa_our_uname, ACTIVESTATUS, XML_BOOLEAN_TRUE,
		ONLINESTATUS, CRMD_JOINSTATE_MEMBER, exp_state,
		!shut_down, __FUNCTION__);

	xml_data  = create_xml_node(xml_state, XML_CIB_TAG_LRM);
	crm_xml_add(xml_data, XML_ATTR_ID, fsa_our_uuid);
	rsc_list  = create_xml_node(xml_data, XML_LRM_TAG_RESOURCES);

	/* Build a list of active (not always running) resources */
	build_active_RAs(rsc_list);

	xml_result = create_cib_fragment(xml_state, XML_CIB_TAG_STATUS);
	crm_log_xml_debug_3(xml_state, "Current state of the LRM");
	free_xml(xml_state);	
	
	return xml_result;
}


static void notify_deleted(ha_msg_input_t *input, const char *rsc_id, int rc) 
{
    lrm_op_t* op = NULL;
    const char *from_sys  = crm_element_value(input->msg, F_CRM_SYS_FROM);
    const char *from_host = crm_element_value(input->msg, F_CRM_HOST_FROM);

    crm_info("Notifying %s on %s that %s was%s deleted",
	     from_sys, from_host, rsc_id, rc==HA_OK?"":" not");

    op = construct_op(input->xml, rsc_id, CRMD_ACTION_DELETE);
    CRM_ASSERT(op != NULL);

    if(rc == HA_OK) {
	op->op_status = LRM_OP_DONE;
	op->rc = EXECRA_OK;
    } else {
	op->op_status = LRM_OP_ERROR;
	op->rc = EXECRA_UNKNOWN_ERROR;
    }
    
    send_direct_ack(from_host, from_sys, NULL, op, rsc_id);
    free_lrm_op(op);
    
    if(safe_str_neq(from_sys, CRM_SYSTEM_TENGINE)) {
	/* this isn't expected - trigger a new transition */
	time_t now = time(NULL);
	char *now_s = crm_itoa(now);
	
	crm_debug("Triggering a refresh after %s deleted %s from the LRM",
		  from_sys, rsc_id);
	
	update_attr(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG,
		    NULL, NULL, NULL, "last-lrm-refresh", now_s, FALSE);
	crm_free(now_s);
    }
}

static gboolean lrm_remove_deleted_rsc(
    gpointer key, gpointer value, gpointer user_data)
{
    struct delete_event_s *event = user_data;
    struct pending_deletion_op_s *op = value;

    if(safe_str_eq(event->rsc, op->rsc)) {
	notify_deleted(op->input, event->rsc, event->rc);
	return TRUE;
    }
    return FALSE;
}

static gboolean lrm_remove_deleted_op(
    gpointer key, gpointer value, gpointer user_data)
{
    const char *rsc = user_data;
    struct recurring_op_s *pending = value;
    if(safe_str_eq(rsc, pending->rsc_id)) {
	crm_info("Removing op %s:%d for deleted resource %s",
		 pending->op_key, pending->call_id, rsc);
	return TRUE;
    }
    return FALSE;
}

/*
 * Remove the rsc from the CIB
 *
 * Avoids refreshing the entire LRM section of this host
 */
#define rsc_template "//"XML_CIB_TAG_STATE"[@uname='%s']//"XML_LRM_TAG_RESOURCE"[@id='%s']"
static void
delete_rsc_entry(ha_msg_input_t *input, const char *rsc_id, int rc) 
{
    struct delete_event_s event;
    
    CRM_CHECK(rsc_id != NULL, return);
    
    if(rc == HA_OK) {
	char *rsc_xpath = NULL;
	char *rsc_id_copy = crm_strdup(rsc_id);
	int max = strlen(rsc_template) + strlen(rsc_id) + strlen(fsa_our_uname) + 1;
	crm_malloc0(rsc_xpath, max);
	snprintf(rsc_xpath, max, rsc_template, fsa_our_uname, rsc_id);
	CRM_CHECK(rsc_id != NULL, return);
	
	crm_debug("sync: Sending delete op for %s", rsc_id);
	fsa_cib_conn->cmds->delete(
	    fsa_cib_conn, rsc_xpath, NULL, cib_quorum_override|cib_xpath);

	g_hash_table_foreach_remove(pending_ops, lrm_remove_deleted_op, rsc_id_copy);
    
	crm_free(rsc_id_copy);
	crm_free(rsc_xpath);
    }    

    if(input) {
	notify_deleted(input, rsc_id, rc);
    }

    event.rc = rc;
    event.rsc = rsc_id;
    g_hash_table_foreach_remove(deletion_ops, lrm_remove_deleted_rsc, &event);    
}

/*
 * Remove the op from the CIB
 *
 * Avoids refreshing the entire LRM section of this host
 */

#define op_template "//"XML_CIB_TAG_STATE"[@uname='%s']//"XML_LRM_TAG_RESOURCE"[@id='%s']/"XML_LRM_TAG_RSC_OP"[@id='%s']"
#define op_call_template "//"XML_CIB_TAG_STATE"[@uname='%s']//"XML_LRM_TAG_RESOURCE"[@id='%s']/"XML_LRM_TAG_RSC_OP"[@id='%s' and @"XML_LRM_ATTR_CALLID"='%d']"

static void
delete_op_entry(lrm_op_t *op, const char *rsc_id, const char *key, int call_id) 
{
	xmlNode *xml_top = NULL;
	if(op != NULL) {
		xml_top = create_xml_node(NULL, XML_LRM_TAG_RSC_OP);
		crm_xml_add_int(xml_top, XML_LRM_ATTR_CALLID, op->call_id);
		crm_xml_add(xml_top, XML_ATTR_TRANSITION_KEY, op->user_data);
		
		crm_debug("async: Sending delete op for %s_%s_%d (call=%d)",
			  op->rsc_id, op->op_type, op->interval, op->call_id);

		fsa_cib_conn->cmds->delete(
		    fsa_cib_conn, XML_CIB_TAG_STATUS, xml_top, cib_quorum_override);		

	} else if (rsc_id != NULL && key != NULL) {
	    int max = 0;
	    char *op_xpath = NULL;
	    if(call_id > 0) {
		max = strlen(op_call_template) + strlen(rsc_id) + strlen(fsa_our_uname) + strlen(key) + 10;
		crm_malloc0(op_xpath, max);
		snprintf(op_xpath, max, op_call_template, fsa_our_uname, rsc_id, key, call_id);
		
	    } else {
		max = strlen(op_template) + strlen(rsc_id) + strlen(fsa_our_uname) + strlen(key) + 1;
		crm_malloc0(op_xpath, max);
		snprintf(op_xpath, max, op_template, fsa_our_uname, rsc_id, key);
	    }
	    
	    crm_debug("sync: Sending delete op for %s (call=%d)", rsc_id, call_id);
	    fsa_cib_conn->cmds->delete(
		fsa_cib_conn, op_xpath, NULL, cib_quorum_override|cib_xpath);

	    crm_free(op_xpath);
		
	} else {
		crm_err("Not enough information to delete op entry: rsc=%p key=%p", rsc_id, key);
		return;
	}

 	crm_log_xml_debug_2(xml_top, "op:cancel");
 	free_xml(xml_top);
}

static gboolean
cancel_op(lrm_rsc_t *rsc, const char *key, int op, gboolean remove)
{
	int rc = HA_OK;
	struct recurring_op_s *pending = NULL;

	CRM_CHECK(op != 0, return FALSE);
	CRM_CHECK(rsc != NULL, return FALSE);
	if(key == NULL) {
	    key = make_stop_id(rsc->id, op);
	}
	pending = g_hash_table_lookup(pending_ops, key);

	if(pending) {
	    if(remove && pending->remove == FALSE) {
		pending->remove = TRUE;
		crm_debug("Scheduling %s for removal", key);
	    }
	    
	    if(pending->cancelled) {
		crm_debug("Operation %s already cancelled", key);
		return TRUE;
	    }

	    pending->cancelled = TRUE;

	} else {
	    crm_info("No pending op found for %s", key);
	}

	crm_debug("Cancelling op %d for %s (%s)", op, rsc->id, key);

	rc = rsc->ops->cancel_op(rsc, op);
	if(rc == HA_OK) {
	    crm_debug("Op %d for %s (%s): cancelled", op, rsc->id, key);
#ifdef HAVE_LRM_OP_T_RSC_DELETED
	} else if(rc == HA_RSCBUSY) {
	    crm_debug("Op %d for %s (%s): cancelation pending", op, rsc->id, key);
#endif
	} else {
		crm_debug("Op %d for %s (%s): Nothing to cancel", op, rsc->id, key);
		/* The caller needs to make sure the entry is
		 * removed from the pending_ops list
		 *
		 * Usually by returning TRUE inside the worker function
		 * supplied to g_hash_table_foreach_remove()
		 *
		 * Not removing the entry from pending_ops will block
		 * the node from shutting down
		 */
		return FALSE;
	}
	
	return TRUE;
}

struct cancel_data 
{
	gboolean done;
	gboolean remove;
	const char *key;
	lrm_rsc_t *rsc;
};

static gboolean
cancel_action_by_key(gpointer key, gpointer value, gpointer user_data)
{
	struct cancel_data *data = user_data;
	struct recurring_op_s *op = (struct recurring_op_s*)value;
	
	if(safe_str_eq(op->op_key, data->key)) {
	    data->done = TRUE;
	    if (cancel_op(data->rsc, key, op->call_id, data->remove) == FALSE) {
		return TRUE;
	    }
	}
	return FALSE;
}

static gboolean
cancel_op_key(lrm_rsc_t *rsc, const char *key, gboolean remove)
{
	struct cancel_data data;

	CRM_CHECK(rsc != NULL, return FALSE);
	CRM_CHECK(key != NULL, return FALSE);

	data.key = key;
	data.rsc = rsc;
	data.done = FALSE;
	data.remove = remove;
	
	g_hash_table_foreach_remove(pending_ops, cancel_action_by_key, &data);
	return data.done;
}

static lrm_rsc_t *
get_lrm_resource(xmlNode *resource, xmlNode *op_msg, gboolean do_create)
{
	char rid[64];
	lrm_rsc_t *rsc = NULL;
	const char *short_id = ID(resource);
	const char *long_id = crm_element_value(resource, XML_ATTR_ID_LONG);
		
	crm_debug_2("Retrieving %s from the LRM.", short_id);
	CRM_CHECK(short_id != NULL, return NULL);
	
	if(rsc == NULL) {
		/* check if its already there (short name) */
		strncpy(rid, short_id, 64);
		rid[63] = 0;
		rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, rid);
	}
	if(rsc == NULL && long_id != NULL) {
		/* try the long name instead */
		strncpy(rid, long_id, 64);
		rid[63] = 0;
		rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, rid);
	}

	if(rsc == NULL && do_create) {
		/* add it to the LRM */
		const char *type = crm_element_value(resource, XML_ATTR_TYPE);
		const char *class = crm_element_value(resource, XML_AGENT_ATTR_CLASS);
		const char *provider = crm_element_value(resource, XML_AGENT_ATTR_PROVIDER);
		GHashTable *params = xml2list(op_msg);

		CRM_CHECK(class != NULL, return NULL);
		CRM_CHECK(type != NULL, return NULL);

		crm_debug_2("Adding rsc %s before operation", short_id);
		strncpy(rid, short_id, 64);
		rid[63] = 0;

		if(g_hash_table_size(params) == 0) {
			crm_log_xml_warn(op_msg, "EmptyParams");
		}
		
		if(params != NULL) {
		    g_hash_table_remove(params, CRM_META"_op_target_rc");
		}

		fsa_lrm_conn->lrm_ops->add_rsc(
			fsa_lrm_conn, rid, class, type, provider, params);
		
		rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, rid);
		g_hash_table_destroy(params);

		if(rsc == NULL) {
			fsa_data_t *msg_data = NULL;
			crm_err("Could not add resource %s to LRM", rid);
			register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL);
		}
	}
	return rsc;
}


/*	 A_LRM_INVOKE	*/
void
do_lrm_invoke(long long action,
	      enum crmd_fsa_cause cause,
	      enum crmd_fsa_state cur_state,
	      enum crmd_fsa_input current_input,
	      fsa_data_t *msg_data)
{
	gboolean done = FALSE;
	gboolean create_rsc = TRUE;
	const char *crm_op = NULL;
	const char *from_sys = NULL;
	const char *from_host = NULL;
	const char *operation = NULL;
	ha_msg_input_t *input = fsa_typed_data(fsa_dt_ha_msg);

	crm_op    = crm_element_value(input->msg, F_CRM_TASK);
	from_sys  = crm_element_value(input->msg, F_CRM_SYS_FROM);
	if(safe_str_neq(from_sys, CRM_SYSTEM_TENGINE)) {
		from_host = crm_element_value(input->msg, F_CRM_HOST_FROM);
	}
	
	crm_debug_2("LRM command from: %s", from_sys);
	
	if(safe_str_eq(crm_op, CRM_OP_LRM_DELETE)) {
		operation = CRMD_ACTION_DELETE;

	} else if(safe_str_eq(operation, CRM_OP_LRM_REFRESH)) {
		crm_op = CRM_OP_LRM_REFRESH;

	} else if(safe_str_eq(crm_op, CRM_OP_LRM_FAIL)) {
#if HAVE_STRUCT_LRM_OPS_FAIL_RSC
		int rc = HA_OK;
		lrm_op_t* op = NULL;

		lrm_rsc_t *rsc = NULL;
		xmlNode *xml_rsc = find_xml_node(
			input->xml, XML_CIB_TAG_RESOURCE, TRUE);

		CRM_CHECK(xml_rsc != NULL, return);

		op = construct_op(input->xml, ID(xml_rsc), "fail");
		op->op_status = LRM_OP_ERROR;
		op->rc = EXECRA_UNKNOWN_ERROR;
		CRM_ASSERT(op != NULL);
	    
		rsc = get_lrm_resource(xml_rsc, input->xml, create_rsc);
		if(rsc) {
		    crm_info("Failing resource %s...", rsc->id);

		    rc = fsa_lrm_conn->lrm_ops->fail_rsc(fsa_lrm_conn, rsc->id, 1, "do_lrm_invoke: Async failure");
		    if(rc != HA_OK) {
			crm_err("Could not initiate an asynchronous failure for %s (%d)", rsc->id, rc);
		    } else {
			op->op_status = LRM_OP_DONE;
			op->rc = EXECRA_OK;
		    }
		    
		    lrm_free_rsc(rsc);
		    
		} else {
		    crm_info("Cannot find/create resource in order to fail it...");
		    crm_log_xml_warn(input->msg, "bad input");
		}

		send_direct_ack(from_host, from_sys, NULL, op, ID(xml_rsc));
		free_lrm_op(op);
		return;
#else
		crm_info("Failing resource...");
		operation = "fail";
#endif

	} else if(input->xml != NULL) {
		operation = crm_element_value(input->xml, XML_LRM_ATTR_TASK);
	}

	if(safe_str_eq(crm_op, CRM_OP_LRM_REFRESH)) {
		enum cib_errors rc = cib_ok;
		xmlNode *fragment = do_lrm_query(TRUE);
		crm_info("Forcing a local LRM refresh");

		fsa_cib_update(XML_CIB_TAG_STATUS, fragment,
			       cib_quorum_override, rc);
		free_xml(fragment);
		
	} else if(safe_str_eq(crm_op, CRM_OP_LRM_QUERY)) {
		xmlNode *data = do_lrm_query(FALSE);
		xmlNode *reply = create_reply(input->msg, data);

		if(relay_message(reply, TRUE) == FALSE) {
			crm_err("Unable to route reply");
			crm_log_xml(LOG_ERR, "reply", reply);
		}
		free_xml(reply);
		free_xml(data);

	} else if(safe_str_eq(operation, CRM_OP_PROBED)
		  || safe_str_eq(crm_op, CRM_OP_REPROBE)) {
		int cib_options = cib_inhibit_notify;
		const char *probed = XML_BOOLEAN_TRUE;
		if(safe_str_eq(crm_op, CRM_OP_REPROBE)) {
			cib_options = cib_none;
			probed = XML_BOOLEAN_FALSE;
		}
		
		update_attrd(NULL, CRM_OP_PROBED, probed);

	} else if(operation != NULL) {
		lrm_rsc_t *rsc = NULL;
		xmlNode *params = NULL;
		xmlNode *xml_rsc = find_xml_node(
			input->xml, XML_CIB_TAG_RESOURCE, TRUE);

		CRM_CHECK(xml_rsc != NULL, return);
		
		/* only the first 16 chars are used by the LRM */
		params  = find_xml_node(input->xml, XML_TAG_ATTRS, TRUE);

		if(safe_str_eq(operation, CRMD_ACTION_DELETE)) {
			create_rsc = FALSE;
		}
		
		rsc = get_lrm_resource(xml_rsc, input->xml, create_rsc);

		if(rsc == NULL && create_rsc) {
			crm_err("Invalid resource definition");
			crm_log_xml_warn(input->msg, "bad input");

		} else if(rsc == NULL) {
			lrm_op_t* op = NULL;
			crm_notice("Not creating resource for a %s event: %s",
				   operation, ID(input->xml));

			op = construct_op(input->xml, ID(xml_rsc), operation);
			op->op_status = LRM_OP_DONE;
			op->rc = EXECRA_OK;
			CRM_ASSERT(op != NULL);
			send_direct_ack(from_host, from_sys, NULL, op, ID(xml_rsc));
			free_lrm_op(op);			
			
		} else if(safe_str_eq(operation, CRMD_ACTION_CANCEL)) {
			lrm_op_t* op = NULL;
			char *op_key = NULL;
			char *meta_key = NULL;
			int call = 0;
			const char *call_id = NULL;
			const char *op_task = NULL;
			const char *op_interval = NULL;

			CRM_CHECK(params != NULL,
				  crm_log_xml_warn(input->xml, "Bad command");
				  return);


			meta_key = crm_meta_name(XML_LRM_ATTR_INTERVAL);
			op_interval = crm_element_value(params, meta_key);
			crm_free(meta_key);

			meta_key = crm_meta_name(XML_LRM_ATTR_TASK);
			op_task = crm_element_value(params, meta_key);
			crm_free(meta_key);

			meta_key = crm_meta_name(XML_LRM_ATTR_CALLID);
			call_id = crm_element_value(params, meta_key);
			crm_free(meta_key);

			CRM_CHECK(op_task != NULL,
				  crm_log_xml_warn(input->xml, "Bad command");
				  return);
			CRM_CHECK(op_interval != NULL,
				  crm_log_xml_warn(input->xml, "Bad command");
				  return);

			op = construct_op(input->xml, rsc->id, op_task);
			CRM_ASSERT(op != NULL);
			op_key = generate_op_key(
				rsc->id,op_task,crm_parse_int(op_interval,"0"));

			crm_debug("PE requested op %s (call=%s) be cancelled",
				  op_key, call_id?call_id:"NA");
			call = crm_parse_int(call_id, "0");
			if(call == 0) {
			    /* the normal case when the PE cancels a recurring op */
			    done = cancel_op_key(rsc, op_key, TRUE);

			} else {
			    /* the normal case when the PE cancels an orphan op */
			    done = cancel_op(rsc, NULL, call, TRUE);
			}

			if(done == FALSE) {
			    crm_debug("Nothing known about operation %d for %s", call, op_key);
			    delete_op_entry(NULL, rsc->id, op_key, call);

			    /* needed?? surely not otherwise the cancel_op_(_key) wouldn't
			     * have failed in the first place
			     */
			    g_hash_table_remove(pending_ops, op_key);
			}

			op->rc = EXECRA_OK;
			op->op_status = LRM_OP_DONE;
			send_direct_ack(from_host, from_sys, rsc, op, rsc->id);
			
			crm_free(op_key);
			free_lrm_op(op);			
			
		} else if(safe_str_eq(operation, CRMD_ACTION_DELETE)) {
			int rc = HA_OK;
			
			CRM_ASSERT(rsc != NULL);
			crm_info("Removing resource %s from the LRM", rsc->id);
			rc = fsa_lrm_conn->lrm_ops->delete_rsc(fsa_lrm_conn, rsc->id);

			if(rc == HA_OK) {
			    crm_info("Resource '%s' deleted for %s on %s",
				     rsc->id, from_sys, from_host);
			    delete_rsc_entry(input, rsc->id, rc);

#ifdef HAVE_LRM_OP_T_RSC_DELETED
			} else if(rc == HA_RSCBUSY) {
			    struct pending_deletion_op_s *op = NULL;
			    crm_info("Resource deletion scheduled for %s on %s", from_sys, from_host);
    
			    crm_malloc0(op, sizeof(struct pending_deletion_op_s));
			    op->rsc = crm_strdup(rsc->id);
			    op->input = copy_ha_msg_input(input);
			    g_hash_table_insert(
				deletion_ops, crm_element_value_copy(input->msg, XML_ATTR_REFERENCE), op);
#endif
			} else {
			    crm_err("Deletion of resource '%s' for %s on %s failed: %d",
				    rsc->id, from_sys, from_host, rc);
			    delete_rsc_entry(input, rsc->id, rc);
			}			
			
		} else if(rsc != NULL) {
		    do_lrm_rsc_op(rsc, operation, input->xml, input->msg);
		}
		
		lrm_free_rsc(rsc);

	} else {
		crm_err("Operation was neither a lrm_query, nor a rsc op.  %s",
			crm_str(crm_op));
		register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
	}
}

lrm_op_t *
construct_op(xmlNode *rsc_op, const char *rsc_id, const char *operation)
{
	lrm_op_t *op = NULL;
	const char *op_delay = NULL;
	const char *op_timeout = NULL;
	const char *op_interval = NULL;
	
	const char *transition = NULL;
	CRM_DEV_ASSERT(rsc_id != NULL);

	crm_malloc0(op, sizeof(lrm_op_t));
	op->op_type   = crm_strdup(operation);
	op->op_status = LRM_OP_PENDING;
	op->rc = -1;
	op->rsc_id = crm_strdup(rsc_id);
	op->interval = 0;
	op->timeout  = 0;
	op->start_delay = 0;
	op->copyparams = 0;
	op->app_name = crm_strdup(CRM_SYSTEM_CRMD);

	if(rsc_op == NULL) {
		CRM_DEV_ASSERT(safe_str_eq(CRMD_ACTION_STOP, operation));
		op->user_data = NULL;
		op->user_data_len = 0;
		/* the stop_all_resources() case
		 * by definition there is no DC (or they'd be shutting
		 *   us down).
		 * So we should put our version here.
		 */
		op->params = g_hash_table_new_full(
			g_str_hash, g_str_equal,
			g_hash_destroy_str, g_hash_destroy_str);
		
		g_hash_table_insert(op->params,
				    crm_strdup(XML_ATTR_CRM_VERSION),
				    crm_strdup(CRM_FEATURE_SET));

		crm_debug_2("Constructed %s op for %s", operation, rsc_id);
		return op;
	}

	op->params = xml2list(rsc_op);
	if(op->params == NULL) {
		CRM_DEV_ASSERT(safe_str_eq(CRMD_ACTION_STOP, operation));
	} else {
		g_hash_table_remove(op->params, CRM_META"_op_target_rc");
	}

	op_delay    = crm_meta_value(op->params, XML_OP_ATTR_START_DELAY);
	op_timeout  = crm_meta_value(op->params, XML_ATTR_TIMEOUT);
	op_interval = crm_meta_value(op->params, XML_LRM_ATTR_INTERVAL);

	op->interval = crm_parse_int(op_interval, "0");
	op->timeout  = crm_parse_int(op_timeout,  "0");
	op->start_delay = crm_parse_int(op_delay, "0");

	/* sanity */
	if(op->interval < 0) {
		op->interval = 0;
	}
	if(op->timeout < 0) {
		op->timeout = 0;
	}
	if(op->start_delay < 0) {
		op->start_delay = 0;
	}

	transition = crm_element_value(rsc_op, XML_ATTR_TRANSITION_KEY);
	CRM_CHECK(transition != NULL, return op);
	
	op->user_data = crm_strdup(transition);
	op->user_data_len = 1+strlen(op->user_data);

	if(op->interval != 0) {
		if(safe_str_eq(operation, CRMD_ACTION_START)
		   || safe_str_eq(operation, CRMD_ACTION_STOP)) {
			crm_err("Start and Stop actions cannot have an interval: %d", op->interval);
			op->interval = 0;
		}
	}

	/* reset the resource's parameters? */
	if(op->interval == 0) {
	    if(safe_str_eq(CRMD_ACTION_START, operation)
	       || safe_str_eq(CRMD_ACTION_STATUS, operation)) {
		op->copyparams = 1;
	    }
	}
	
	crm_debug_2("Constructed %s op for %s: interval=%d",
		    operation, rsc_id, op->interval);	
	
	return op;
}

void
send_direct_ack(const char *to_host, const char *to_sys,
		lrm_rsc_t *rsc, lrm_op_t* op, const char *rsc_id)
{
	xmlNode *reply = NULL;
	xmlNode *update, *iter;
	xmlNode *fragment;
	
	CRM_CHECK(op != NULL, return);
	if(op->rsc_id == NULL) {
		CRM_DEV_ASSERT(rsc_id != NULL);
		op->rsc_id = crm_strdup(rsc_id);
	}
	if(to_sys == NULL) {
		to_sys = CRM_SYSTEM_TENGINE;
	}
	update = create_node_state(
		fsa_our_uname, NULL, NULL, NULL, NULL, NULL, FALSE, __FUNCTION__);

	iter = create_xml_node(update, XML_CIB_TAG_LRM);
	crm_xml_add(iter, XML_ATTR_ID, fsa_our_uuid);
	iter = create_xml_node(iter,   XML_LRM_TAG_RESOURCES);
	iter = create_xml_node(iter,   XML_LRM_TAG_RESOURCE);

	crm_xml_add(iter, XML_ATTR_ID, op->rsc_id);

	build_operation_update(iter, rsc, op, __FUNCTION__, 0, LOG_DEBUG);
	fragment = create_cib_fragment(update, XML_CIB_TAG_STATUS);

	reply = create_request(CRM_OP_INVOKE_LRM, fragment, to_host,
			       to_sys, CRM_SYSTEM_LRMD, NULL);

	crm_log_xml_debug_2(update, "ACK Update");

	crm_info("ACK'ing resource op %s_%s_%d from %s: %s",
		 op->rsc_id, op->op_type, op->interval, op->user_data,
		 crm_element_value(reply, XML_ATTR_REFERENCE));

	if(relay_message(reply, TRUE) == FALSE) {
		crm_log_xml(LOG_ERR, "Unable to route reply", reply);
	}

	free_xml(fragment);
	free_xml(update);
	free_xml(reply);
}

static gboolean
stop_recurring_action_by_rsc(gpointer key, gpointer value, gpointer user_data)
{
	lrm_rsc_t *rsc = user_data;
	struct recurring_op_s *op = (struct recurring_op_s*)value;
	
	if(op->interval != 0 && safe_str_eq(op->rsc_id, rsc->id)) {
		if (cancel_op(rsc, key, op->call_id, FALSE) == FALSE) {
			return TRUE;
		}
	}

	return FALSE;
}

void
do_lrm_rsc_op(lrm_rsc_t *rsc, const char *operation,
	      xmlNode *msg, xmlNode *request)
{
	int call_id  = 0;
	char *op_id  = NULL;
	lrm_op_t* op = NULL;

	fsa_data_t *msg_data = NULL;
	const char *transition = NULL;	

	CRM_CHECK(rsc != NULL, return);
	
	if(msg != NULL) {
		transition = crm_element_value(msg, XML_ATTR_TRANSITION_KEY);
		if(transition == NULL) {
			crm_log_xml_err(msg, "Missing transition number");
		}
	}

	op = construct_op(msg, rsc->id, operation);

	/* stop the monitor before stopping the resource */
	if(crm_str_eq(operation, CRMD_ACTION_STOP, TRUE)
	   || crm_str_eq(operation, CRMD_ACTION_DEMOTE, TRUE)
	   || crm_str_eq(operation, CRMD_ACTION_PROMOTE, TRUE)
	   || crm_str_eq(operation, CRMD_ACTION_MIGRATE, TRUE)) {
		g_hash_table_foreach_remove(pending_ops, stop_recurring_action_by_rsc, rsc);
	}
	
	/* now do the op */
	crm_info("Performing key=%s op=%s_%s_%d )",
		 transition, rsc->id, operation, op->interval);

	if(fsa_state != S_NOT_DC && fsa_state != S_TRANSITION_ENGINE) {
		if(safe_str_neq(operation, "fail")
		   && safe_str_neq(operation, CRMD_ACTION_STOP)) {
			crm_info("Discarding attempt to perform action %s on %s"
				 " in state %s", operation, rsc->id,
				 fsa_state2string(fsa_state));
			op->rc = 99;
			op->op_status = LRM_OP_ERROR;
			send_direct_ack(NULL, NULL, rsc, op, rsc->id);
			free_lrm_op(op);
			crm_free(op_id);
			return;
		}
	}

	op_id = generate_op_key(rsc->id, op->op_type, op->interval);

	if(op->interval > 0) {
		/* cancel it so we can then restart it without conflict */
		cancel_op_key(rsc, op_id, FALSE);
		op->target_rc = CHANGED;

	} else {
		op->target_rc = EVERYTIME;
	}

	g_hash_table_replace(resources,crm_strdup(rsc->id), crm_strdup(op_id));
	call_id = rsc->ops->perform_op(rsc, op);

	if(call_id <= 0) {
		crm_err("Operation %s on %s failed: %d",
			operation, rsc->id, call_id);
		register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL);

	} else if(op->interval > 0 && op->start_delay > 5 * 60 * 1000) {
	    char *uuid = NULL;
	    int dummy = 0, target_rc = 0;
	    crm_info("Faking confirmation of %s: execution postponed for over 5 minutes", op_id);
	    
	    decode_transition_key(op->user_data, &uuid, &dummy, &dummy, &target_rc);
	    crm_free(uuid);

	    op->rc = target_rc;
	    op->op_status = LRM_OP_DONE;
	    send_direct_ack(NULL, NULL, rsc, op, rsc->id);
	    
	} else {
		/* record all operations so we can wait
		 * for them to complete during shutdown
		 */
		char *call_id_s = make_stop_id(rsc->id, call_id);
		struct recurring_op_s *pending = NULL;
		crm_malloc0(pending, sizeof(struct recurring_op_s));
		crm_debug_2("Recording pending op: %d - %s %s", call_id, op_id, call_id_s);
		
		pending->call_id  = call_id;
		pending->interval = op->interval;
		pending->op_key   = crm_strdup(op_id);
		pending->rsc_id   = crm_strdup(rsc->id);
		g_hash_table_replace(pending_ops, call_id_s, pending);
	}

	crm_free(op_id);
	free_lrm_op(op);		
	return;
}

void
free_deletion_op(gpointer value)
{
	struct pending_deletion_op_s *op = value;
	crm_free(op->rsc);
	delete_ha_msg_input(op->input);
	crm_free(op);
}

void
free_recurring_op(gpointer value)
{
	struct recurring_op_s *op = (struct recurring_op_s*)value;
	crm_free(op->rsc_id);
	crm_free(op->op_key);
	crm_free(op);
}

void
free_lrm_op(lrm_op_t *op) 
{
	g_hash_table_destroy(op->params);
	crm_free(op->user_data);
	crm_free(op->output);
	crm_free(op->rsc_id);
	crm_free(op->op_type);
	crm_free(op->app_name);
	crm_free(op);	
}


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

lrm_op_t *
copy_lrm_op(const lrm_op_t *op)
{
	lrm_op_t *op_copy = NULL;

	CRM_CHECK(op != NULL, return NULL);
	CRM_CHECK(op->rsc_id != NULL, return NULL);

	crm_malloc0(op_copy, sizeof(lrm_op_t));

	op_copy->op_type = crm_strdup(op->op_type);
 	/* input fields */
	op_copy->params = g_hash_table_new_full(
		g_str_hash, g_str_equal,
		g_hash_destroy_str, g_hash_destroy_str);
	
	if(op->params != NULL) {
		g_hash_table_foreach(op->params, dup_attr, op_copy->params);
	}
	op_copy->timeout   = op->timeout;
	op_copy->interval  = op->interval; 
	op_copy->target_rc = op->target_rc; 

	/* in the CRM, this is always a string */
	if(op->user_data != NULL) {
		op_copy->user_data = crm_strdup(op->user_data); 
	}
	
	/* output fields */
	op_copy->op_status = op->op_status; 
	op_copy->rc        = op->rc; 
	op_copy->call_id   = op->call_id; 
	op_copy->output    = NULL;
	op_copy->rsc_id    = crm_strdup(op->rsc_id);
	if(op->app_name != NULL) {
		op_copy->app_name  = crm_strdup(op->app_name);
	}
	if(op->output != NULL) {
		op_copy->output = crm_strdup(op->output);
	}
	
	return op_copy;
}


lrm_rsc_t *
copy_lrm_rsc(const lrm_rsc_t *rsc)
{
	lrm_rsc_t *rsc_copy = NULL;

	if(rsc == NULL) {
		return NULL;
	}
	
	crm_malloc0(rsc_copy, sizeof(lrm_rsc_t));

	rsc_copy->id       = crm_strdup(rsc->id);
	rsc_copy->type     = crm_strdup(rsc->type);
	rsc_copy->class    = NULL;
	rsc_copy->provider = NULL;

	if(rsc->class != NULL) {
		rsc_copy->class    = crm_strdup(rsc->class);
	}
	if(rsc->provider != NULL) {
		rsc_copy->provider = crm_strdup(rsc->provider);
	}
/* 	GHashTable* 	params; */
	rsc_copy->params = NULL;
	rsc_copy->ops    = NULL;

	return rsc_copy;
}

void
cib_rsc_callback(xmlNode *msg, int call_id, int rc,
		 xmlNode *output, void *user_data)
{
    switch(rc) {
	case cib_ok:
	case cib_diff_failed:
	case cib_diff_resync:
	    crm_debug_2("Resource update %d complete: rc=%d", call_id, rc);
	    break;
	default:
	    crm_warn("Resource update %d failed: (rc=%d) %s",
		     call_id, rc, cib_error2string(rc));	
    }
}


int
do_update_resource(lrm_op_t* op)
{
/*
  <status>
    <nodes_status id=uname>
      <lrm>
        <lrm_resources>
          <lrm_resource id=...>
          </...>
*/
	int rc = cib_ok;
	lrm_rsc_t *rsc = NULL;
	xmlNode *update, *iter = NULL;
	int call_opt = cib_quorum_override;
	
	CRM_CHECK(op != NULL, return 0);

	if(fsa_state == S_ELECTION || fsa_state == S_PENDING) {
	    crm_info("Sending update to local CIB in state: %s", fsa_state2string(fsa_state));
	    call_opt |= cib_scope_local;
	}
	
	iter = create_xml_node(iter, XML_CIB_TAG_STATUS); update = iter;
	iter = create_xml_node(iter, XML_CIB_TAG_STATE);

	set_uuid(iter, XML_ATTR_UUID, fsa_our_uname);
	crm_xml_add(iter, XML_ATTR_UNAME, fsa_our_uname);
	crm_xml_add(iter, XML_ATTR_ORIGIN, __FUNCTION__);
	
	iter = create_xml_node(iter, XML_CIB_TAG_LRM);
	crm_xml_add(iter, XML_ATTR_ID, fsa_our_uuid);

	iter = create_xml_node(iter, XML_LRM_TAG_RESOURCES);
	iter = create_xml_node(iter, XML_LRM_TAG_RESOURCE);
	crm_xml_add(iter, XML_ATTR_ID, op->rsc_id);
		
	rsc = fsa_lrm_conn->lrm_ops->get_rsc(fsa_lrm_conn, op->rsc_id);
	build_operation_update(iter, rsc, op, __FUNCTION__, 0, LOG_DEBUG);

	if(rsc) {
	    crm_xml_add(iter, XML_ATTR_TYPE, rsc->type);
	    crm_xml_add(iter, XML_AGENT_ATTR_CLASS, rsc->class);
	    crm_xml_add(iter, XML_AGENT_ATTR_PROVIDER,rsc->provider);	

	    CRM_CHECK(rsc->type != NULL,
		      crm_err("Resource %s has no value for type", op->rsc_id));
	    CRM_CHECK(rsc->class != NULL,
		      crm_err("Resource %s has no value for class", op->rsc_id));
	    lrm_free_rsc(rsc);

	} else {
	    crm_warn("Resource %s no longer exists in the lrmd", op->rsc_id);
	    goto cleanup;
	}

	/* make it an asyncronous call and be done with it
	 *
	 * Best case:
	 *   the resource state will be discovered during
	 *   the next signup or election.
	 *
	 * Bad case:
	 *   we are shutting down and there is no DC at the time,
	 *   but then why were we shutting down then anyway?
	 *   (probably because of an internal error)
	 *
	 * Worst case:
	 *   we get shot for having resources "running" when the really weren't
	 *
	 * the alternative however means blocking here for too long, which
	 * isnt acceptable
	 */
	fsa_cib_update(XML_CIB_TAG_STATUS, update, call_opt, rc);
			
	/* the return code is a call number, not an error code */
	crm_debug_2("Sent resource state update message: %d", rc);
	fsa_cib_conn->cmds->register_callback(
	    fsa_cib_conn, rc, 60, FALSE, NULL, "cib_rsc_callback", cib_rsc_callback);
	
  cleanup:
	free_xml(update);
	return rc;
}

void
do_lrm_event(long long action,
	     enum crmd_fsa_cause cause,
	     enum crmd_fsa_state cur_state,
	     enum crmd_fsa_input cur_input,
	     fsa_data_t *msg_data)
{
    CRM_CHECK(FALSE, return);
}


gboolean
process_lrm_event(lrm_op_t *op)
{
	char *op_id = NULL;
	char *op_key = NULL;

	int update_id = 0;
	int log_level = LOG_ERR;
	gboolean removed = FALSE;
	
	struct recurring_op_s *pending = NULL;
	CRM_CHECK(op != NULL, return FALSE);
	CRM_CHECK(op->rsc_id != NULL, return FALSE);

	op_key = generate_op_key(op->rsc_id, op->op_type, op->interval);
	
	switch(op->op_status) {
		case LRM_OP_ERROR:
		case LRM_OP_PENDING:
		case LRM_OP_NOTSUPPORTED:
			break;
		case LRM_OP_CANCELLED:
			log_level = LOG_INFO;
			break;
		case LRM_OP_DONE:
			log_level = LOG_INFO;
			break;
		case LRM_OP_TIMEOUT:
			log_level = LOG_DEBUG_3;
			crm_err("LRM operation %s (%d) %s (timeout=%dms)",
				op_key, op->call_id,
				op_status2text(op->op_status), op->timeout);
			break;
		default:
			crm_err("Mapping unknown status (%d) to ERROR",
				op->op_status);
			op->op_status = LRM_OP_ERROR;
	}

	if(op->op_status == LRM_OP_ERROR
	   && (op->rc == EXECRA_RUNNING_MASTER || op->rc == EXECRA_NOT_RUNNING)) {
		/* Leave it up to the TE/PE to decide if this is an error */ 
		op->op_status = LRM_OP_DONE;
		log_level = LOG_INFO;
	}

	op_id = make_stop_id(op->rsc_id, op->call_id);
	pending = g_hash_table_lookup(pending_ops, op_id);

	if(op->op_status != LRM_OP_CANCELLED) {
		update_id = do_update_resource(op);
		if(op->interval != 0) {
			goto out;
		}
		
	} else if(op->interval == 0) {
		/* This will occur when "crm resource cleanup" is called while actions are in-flight */
		crm_err("Op %s (call=%d): Cancelled", op_key, op->call_id);
		send_direct_ack(NULL, NULL, NULL, op, op->rsc_id);

	} else if(pending == NULL) {
		crm_err("Op %s (call=%d): No 'pending' entry",
			op_key, op->call_id);

	} else if(op->user_data == NULL) {
		crm_err("Op %s (call=%d): No user data", op_key, op->call_id);
	    
	} else if(pending->remove) {
		delete_op_entry(op, op->rsc_id, op_key, op->call_id);

	} else {
		/* Before a stop is called, no need to direct ack */
		crm_debug_2("Op %s (call=%d): no delete event required", op_key, op->call_id);
	}

	if(g_hash_table_remove(pending_ops, op_id)) {
	    removed = TRUE;
	    crm_debug_2("Op %s (call=%d, stop-id=%s): Confirmed", op_key, op->call_id, op_id);
	}

  out:
	if(op->op_status == LRM_OP_DONE) {
	    do_crm_log(log_level,
		   "LRM operation %s (call=%d, rc=%d, cib-update=%d, confirmed=%s) %s",
		   op_key, op->call_id, op->rc, update_id, removed?"true":"false",
		   execra_code2string(op->rc));
	} else {
	    do_crm_log(log_level,
		   "LRM operation %s (call=%d, status=%d, cib-update=%d, confirmed=%s) %s",
		   op_key, op->call_id, op->op_status, update_id, removed?"true":"false",
		   op_status2text(op->op_status));
	}
	
	if(op->rc != 0 && op->output != NULL) {
		crm_info("Result: %s", op->output);
	} else if(op->output != NULL) {
		crm_debug("Result: %s", op->output);
	}

#ifdef HAVE_LRM_OP_T_RSC_DELETED
	if(op->rsc_deleted) {
	    crm_info("Deletion of resource '%s' complete after %s", op->rsc_id, op_key);
	    delete_rsc_entry(NULL, op->rsc_id, HA_OK);
	}
#endif

	
	/* If a shutdown was escalated while operations were pending, 
	 * then the FSA will be stalled right now... allow it to continue
	 */
	mainloop_set_trigger(fsa_source);

	crm_free(op_key);
	crm_free(op_id);
	return TRUE;
}

char *
make_stop_id(const char *rsc, int call_id)
{
	char *op_id = NULL;
	crm_malloc0(op_id, strlen(rsc) + 34);
	if(op_id != NULL) {
		snprintf(op_id, strlen(rsc) + 34, "%s:%d", rsc, call_id);
	}
	return op_id;
}
