controld_utils.c
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controld_utils.c
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	/*
	* Copyright 2004-2023 the Pacemaker project contributors
	*
	* The version control history for this file may have further details.
	*
	* This source code is licensed under the GNU General Public License version 2
	* or later (GPLv2+) WITHOUT ANY WARRANTY.
	*/

	#include <crm_internal.h>

	#include <stdlib.h>
	#include <stdint.h> // uint64_t

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

	#include <pacemaker-controld.h>

	const char *
	fsa_input2string(enum crmd_fsa_input input)
	{
	const char *inputAsText = NULL;

	switch (input) {
	case I_NULL:
	inputAsText = "I_NULL";
	break;
	case I_CIB_OP:
	inputAsText = "I_CIB_OP (unused)";
	break;
	case I_CIB_UPDATE:
	inputAsText = "I_CIB_UPDATE";
	break;
	case I_DC_TIMEOUT:
	inputAsText = "I_DC_TIMEOUT";
	break;
	case I_ELECTION:
	inputAsText = "I_ELECTION";
	break;
	case I_PE_CALC:
	inputAsText = "I_PE_CALC";
	break;
	case I_RELEASE_DC:
	inputAsText = "I_RELEASE_DC";
	break;
	case I_ELECTION_DC:
	inputAsText = "I_ELECTION_DC";
	break;
	case I_ERROR:
	inputAsText = "I_ERROR";
	break;
	case I_FAIL:
	inputAsText = "I_FAIL";
	break;
	case I_INTEGRATED:
	inputAsText = "I_INTEGRATED";
	break;
	case I_FINALIZED:
	inputAsText = "I_FINALIZED";
	break;
	case I_NODE_JOIN:
	inputAsText = "I_NODE_JOIN";
	break;
	case I_JOIN_OFFER:
	inputAsText = "I_JOIN_OFFER";
	break;
	case I_JOIN_REQUEST:
	inputAsText = "I_JOIN_REQUEST";
	break;
	case I_JOIN_RESULT:
	inputAsText = "I_JOIN_RESULT";
	break;
	case I_NOT_DC:
	inputAsText = "I_NOT_DC";
	break;
	case I_RECOVERED:
	inputAsText = "I_RECOVERED";
	break;
	case I_RELEASE_FAIL:
	inputAsText = "I_RELEASE_FAIL";
	break;
	case I_RELEASE_SUCCESS:
	inputAsText = "I_RELEASE_SUCCESS";
	break;
	case I_RESTART:
	inputAsText = "I_RESTART";
	break;
	case I_PE_SUCCESS:
	inputAsText = "I_PE_SUCCESS";
	break;
	case I_ROUTER:
	inputAsText = "I_ROUTER";
	break;
	case I_SHUTDOWN:
	inputAsText = "I_SHUTDOWN";
	break;
	case I_STARTUP:
	inputAsText = "I_STARTUP";
	break;
	case I_TE_SUCCESS:
	inputAsText = "I_TE_SUCCESS";
	break;
	case I_STOP:
	inputAsText = "I_STOP";
	break;
	case I_DC_HEARTBEAT:
	inputAsText = "I_DC_HEARTBEAT";
	break;
	case I_WAIT_FOR_EVENT:
	inputAsText = "I_WAIT_FOR_EVENT";
	break;
	case I_LRM_EVENT:
	inputAsText = "I_LRM_EVENT";
	break;
	case I_PENDING:
	inputAsText = "I_PENDING";
	break;
	case I_HALT:
	inputAsText = "I_HALT";
	break;
	case I_TERMINATE:
	inputAsText = "I_TERMINATE";
	break;
	case I_ILLEGAL:
	inputAsText = "I_ILLEGAL";
	break;
	}

	if (inputAsText == NULL) {
	crm_err("Input %d is unknown", input);
	inputAsText = "<UNKNOWN_INPUT>";
	}

	return inputAsText;
	}

	const char *
	fsa_state2string(enum crmd_fsa_state state)
	{
	const char *stateAsText = NULL;

	switch (state) {
	case S_IDLE:
	stateAsText = "S_IDLE";
	break;
	case S_ELECTION:
	stateAsText = "S_ELECTION";
	break;
	case S_INTEGRATION:
	stateAsText = "S_INTEGRATION";
	break;
	case S_FINALIZE_JOIN:
	stateAsText = "S_FINALIZE_JOIN";
	break;
	case S_NOT_DC:
	stateAsText = "S_NOT_DC";
	break;
	case S_POLICY_ENGINE:
	stateAsText = "S_POLICY_ENGINE";
	break;
	case S_RECOVERY:
	stateAsText = "S_RECOVERY";
	break;
	case S_RELEASE_DC:
	stateAsText = "S_RELEASE_DC";
	break;
	case S_PENDING:
	stateAsText = "S_PENDING";
	break;
	case S_STOPPING:
	stateAsText = "S_STOPPING";
	break;
	case S_TERMINATE:
	stateAsText = "S_TERMINATE";
	break;
	case S_TRANSITION_ENGINE:
	stateAsText = "S_TRANSITION_ENGINE";
	break;
	case S_STARTING:
	stateAsText = "S_STARTING";
	break;
	case S_HALT:
	stateAsText = "S_HALT";
	break;
	case S_ILLEGAL:
	stateAsText = "S_ILLEGAL";
	break;
	}

	if (stateAsText == NULL) {
	crm_err("State %d is unknown", state);
	stateAsText = "<UNKNOWN_STATE>";
	}

	return stateAsText;
	}

	const char *
	fsa_cause2string(enum crmd_fsa_cause cause)
	{
	const char *causeAsText = NULL;

	switch (cause) {
	case C_UNKNOWN:
	causeAsText = "C_UNKNOWN";
	break;
	case C_STARTUP:
	causeAsText = "C_STARTUP";
	break;
	case C_IPC_MESSAGE:
	causeAsText = "C_IPC_MESSAGE";
	break;
	case C_HA_MESSAGE:
	causeAsText = "C_HA_MESSAGE";
	break;
	case C_TIMER_POPPED:
	causeAsText = "C_TIMER_POPPED";
	break;
	case C_SHUTDOWN:
	causeAsText = "C_SHUTDOWN";
	break;
	case C_LRM_OP_CALLBACK:
	causeAsText = "C_LRM_OP_CALLBACK";
	break;
	case C_CRMD_STATUS_CALLBACK:
	causeAsText = "C_CRMD_STATUS_CALLBACK";
	break;
	case C_FSA_INTERNAL:
	causeAsText = "C_FSA_INTERNAL";
	break;
	}

	if (causeAsText == NULL) {
	crm_err("Cause %d is unknown", cause);
	causeAsText = "<UNKNOWN_CAUSE>";
	}

	return causeAsText;
	}

	const char *
	fsa_action2string(long long action)
	{
	const char *actionAsText = NULL;

	switch (action) {

	case A_NOTHING:
	actionAsText = "A_NOTHING";
	break;
	case A_ELECTION_START:
	actionAsText = "A_ELECTION_START";
	break;
	case A_DC_JOIN_FINAL:
	actionAsText = "A_DC_JOIN_FINAL";
	break;
	case A_READCONFIG:
	actionAsText = "A_READCONFIG";
	break;
	case O_RELEASE:
	actionAsText = "O_RELEASE";
	break;
	case A_STARTUP:
	actionAsText = "A_STARTUP";
	break;
	case A_STARTED:
	actionAsText = "A_STARTED";
	break;
	case A_HA_CONNECT:
	actionAsText = "A_HA_CONNECT";
	break;
	case A_HA_DISCONNECT:
	actionAsText = "A_HA_DISCONNECT";
	break;
	case A_LRM_CONNECT:
	actionAsText = "A_LRM_CONNECT";
	break;
	case A_LRM_EVENT:
	actionAsText = "A_LRM_EVENT";
	break;
	case A_LRM_INVOKE:
	actionAsText = "A_LRM_INVOKE";
	break;
	case A_LRM_DISCONNECT:
	actionAsText = "A_LRM_DISCONNECT";
	break;
	case O_LRM_RECONNECT:
	actionAsText = "O_LRM_RECONNECT";
	break;
	case A_CL_JOIN_QUERY:
	actionAsText = "A_CL_JOIN_QUERY";
	break;
	case A_DC_TIMER_STOP:
	actionAsText = "A_DC_TIMER_STOP";
	break;
	case A_DC_TIMER_START:
	actionAsText = "A_DC_TIMER_START";
	break;
	case A_INTEGRATE_TIMER_START:
	actionAsText = "A_INTEGRATE_TIMER_START";
	break;
	case A_INTEGRATE_TIMER_STOP:
	actionAsText = "A_INTEGRATE_TIMER_STOP";
	break;
	case A_FINALIZE_TIMER_START:
	actionAsText = "A_FINALIZE_TIMER_START";
	break;
	case A_FINALIZE_TIMER_STOP:
	actionAsText = "A_FINALIZE_TIMER_STOP";
	break;
	case A_ELECTION_COUNT:
	actionAsText = "A_ELECTION_COUNT";
	break;
	case A_ELECTION_VOTE:
	actionAsText = "A_ELECTION_VOTE";
	break;
	case A_ELECTION_CHECK:
	actionAsText = "A_ELECTION_CHECK";
	break;
	case A_CL_JOIN_ANNOUNCE:
	actionAsText = "A_CL_JOIN_ANNOUNCE";
	break;
	case A_CL_JOIN_REQUEST:
	actionAsText = "A_CL_JOIN_REQUEST";
	break;
	case A_CL_JOIN_RESULT:
	actionAsText = "A_CL_JOIN_RESULT";
	break;
	case A_DC_JOIN_OFFER_ALL:
	actionAsText = "A_DC_JOIN_OFFER_ALL";
	break;
	case A_DC_JOIN_OFFER_ONE:
	actionAsText = "A_DC_JOIN_OFFER_ONE";
	break;
	case A_DC_JOIN_PROCESS_REQ:
	actionAsText = "A_DC_JOIN_PROCESS_REQ";
	break;
	case A_DC_JOIN_PROCESS_ACK:
	actionAsText = "A_DC_JOIN_PROCESS_ACK";
	break;
	case A_DC_JOIN_FINALIZE:
	actionAsText = "A_DC_JOIN_FINALIZE";
	break;
	case A_MSG_PROCESS:
	actionAsText = "A_MSG_PROCESS";
	break;
	case A_MSG_ROUTE:
	actionAsText = "A_MSG_ROUTE";
	break;
	case A_RECOVER:
	actionAsText = "A_RECOVER";
	break;
	case A_DC_RELEASE:
	actionAsText = "A_DC_RELEASE";
	break;
	case A_DC_RELEASED:
	actionAsText = "A_DC_RELEASED";
	break;
	case A_DC_TAKEOVER:
	actionAsText = "A_DC_TAKEOVER";
	break;
	case A_SHUTDOWN:
	actionAsText = "A_SHUTDOWN";
	break;
	case A_SHUTDOWN_REQ:
	actionAsText = "A_SHUTDOWN_REQ";
	break;
	case A_STOP:
	actionAsText = "A_STOP ";
	break;
	case A_EXIT_0:
	actionAsText = "A_EXIT_0";
	break;
	case A_EXIT_1:
	actionAsText = "A_EXIT_1";
	break;
	case O_CIB_RESTART:
	actionAsText = "O_CIB_RESTART";
	break;
	case A_CIB_START:
	actionAsText = "A_CIB_START";
	break;
	case A_CIB_STOP:
	actionAsText = "A_CIB_STOP";
	break;
	case A_TE_INVOKE:
	actionAsText = "A_TE_INVOKE";
	break;
	case O_TE_RESTART:
	actionAsText = "O_TE_RESTART";
	break;
	case A_TE_START:
	actionAsText = "A_TE_START";
	break;
	case A_TE_STOP:
	actionAsText = "A_TE_STOP";
	break;
	case A_TE_HALT:
	actionAsText = "A_TE_HALT";
	break;
	case A_TE_CANCEL:
	actionAsText = "A_TE_CANCEL";
	break;
	case A_PE_INVOKE:
	actionAsText = "A_PE_INVOKE";
	break;
	case O_PE_RESTART:
	actionAsText = "O_PE_RESTART";
	break;
	case A_PE_START:
	actionAsText = "A_PE_START";
	break;
	case A_PE_STOP:
	actionAsText = "A_PE_STOP";
	break;
	case A_NODE_BLOCK:
	actionAsText = "A_NODE_BLOCK";
	break;
	case A_UPDATE_NODESTATUS:
	actionAsText = "A_UPDATE_NODESTATUS";
	break;
	case A_LOG:
	actionAsText = "A_LOG ";
	break;
	case A_ERROR:
	actionAsText = "A_ERROR ";
	break;
	case A_WARN:
	actionAsText = "A_WARN ";
	break;
	/* Composite actions */
	case A_DC_TIMER_START \| A_CL_JOIN_QUERY:
	actionAsText = "A_DC_TIMER_START\|A_CL_JOIN_QUERY";
	break;
	}

	if (actionAsText == NULL) {
	crm_err("Action %.16llx is unknown", action);
	actionAsText = "<UNKNOWN_ACTION>";
	}

	return actionAsText;
	}

	void
	fsa_dump_inputs(int log_level, const char *text, long long input_register)
	{
	if (input_register == A_NOTHING) {
	return;
	}
	if (text == NULL) {
	text = "Input register contents:";
	}

	if (pcmk_is_set(input_register, R_THE_DC)) {
	crm_trace("%s %.16llx (R_THE_DC)", text, R_THE_DC);
	}
	if (pcmk_is_set(input_register, R_STARTING)) {
	crm_trace("%s %.16llx (R_STARTING)", text, R_STARTING);
	}
	if (pcmk_is_set(input_register, R_SHUTDOWN)) {
	crm_trace("%s %.16llx (R_SHUTDOWN)", text, R_SHUTDOWN);
	}
	if (pcmk_is_set(input_register, R_STAYDOWN)) {
	crm_trace("%s %.16llx (R_STAYDOWN)", text, R_STAYDOWN);
	}
	if (pcmk_is_set(input_register, R_JOIN_OK)) {
	crm_trace("%s %.16llx (R_JOIN_OK)", text, R_JOIN_OK);
	}
	if (pcmk_is_set(input_register, R_READ_CONFIG)) {
	crm_trace("%s %.16llx (R_READ_CONFIG)", text, R_READ_CONFIG);
	}
	if (pcmk_is_set(input_register, R_INVOKE_PE)) {
	crm_trace("%s %.16llx (R_INVOKE_PE)", text, R_INVOKE_PE);
	}
	if (pcmk_is_set(input_register, R_CIB_CONNECTED)) {
	crm_trace("%s %.16llx (R_CIB_CONNECTED)", text, R_CIB_CONNECTED);
	}
	if (pcmk_is_set(input_register, R_PE_CONNECTED)) {
	crm_trace("%s %.16llx (R_PE_CONNECTED)", text, R_PE_CONNECTED);
	}
	if (pcmk_is_set(input_register, R_TE_CONNECTED)) {
	crm_trace("%s %.16llx (R_TE_CONNECTED)", text, R_TE_CONNECTED);
	}
	if (pcmk_is_set(input_register, R_LRM_CONNECTED)) {
	crm_trace("%s %.16llx (R_LRM_CONNECTED)", text, R_LRM_CONNECTED);
	}
	if (pcmk_is_set(input_register, R_CIB_REQUIRED)) {
	crm_trace("%s %.16llx (R_CIB_REQUIRED)", text, R_CIB_REQUIRED);
	}
	if (pcmk_is_set(input_register, R_PE_REQUIRED)) {
	crm_trace("%s %.16llx (R_PE_REQUIRED)", text, R_PE_REQUIRED);
	}
	if (pcmk_is_set(input_register, R_TE_REQUIRED)) {
	crm_trace("%s %.16llx (R_TE_REQUIRED)", text, R_TE_REQUIRED);
	}
	if (pcmk_is_set(input_register, R_REQ_PEND)) {
	crm_trace("%s %.16llx (R_REQ_PEND)", text, R_REQ_PEND);
	}
	if (pcmk_is_set(input_register, R_PE_PEND)) {
	crm_trace("%s %.16llx (R_PE_PEND)", text, R_PE_PEND);
	}
	if (pcmk_is_set(input_register, R_TE_PEND)) {
	crm_trace("%s %.16llx (R_TE_PEND)", text, R_TE_PEND);
	}
	if (pcmk_is_set(input_register, R_RESP_PEND)) {
	crm_trace("%s %.16llx (R_RESP_PEND)", text, R_RESP_PEND);
	}
	if (pcmk_is_set(input_register, R_CIB_DONE)) {
	crm_trace("%s %.16llx (R_CIB_DONE)", text, R_CIB_DONE);
	}
	if (pcmk_is_set(input_register, R_HAVE_CIB)) {
	crm_trace("%s %.16llx (R_HAVE_CIB)", text, R_HAVE_CIB);
	}
	if (pcmk_is_set(input_register, R_MEMBERSHIP)) {
	crm_trace("%s %.16llx (R_MEMBERSHIP)", text, R_MEMBERSHIP);
	}
	if (pcmk_is_set(input_register, R_PEER_DATA)) {
	crm_trace("%s %.16llx (R_PEER_DATA)", text, R_PEER_DATA);
	}
	if (pcmk_is_set(input_register, R_IN_RECOVERY)) {
	crm_trace("%s %.16llx (R_IN_RECOVERY)", text, R_IN_RECOVERY);
	}
	}

	void
	fsa_dump_actions(uint64_t action, const char *text)
	{
	if (pcmk_is_set(action, A_READCONFIG)) {
	crm_trace("Action %.16llx (A_READCONFIG) %s", A_READCONFIG, text);
	}
	if (pcmk_is_set(action, A_STARTUP)) {
	crm_trace("Action %.16llx (A_STARTUP) %s", A_STARTUP, text);
	}
	if (pcmk_is_set(action, A_STARTED)) {
	crm_trace("Action %.16llx (A_STARTED) %s", A_STARTED, text);
	}
	if (pcmk_is_set(action, A_HA_CONNECT)) {
	crm_trace("Action %.16llx (A_CONNECT) %s", A_HA_CONNECT, text);
	}
	if (pcmk_is_set(action, A_HA_DISCONNECT)) {
	crm_trace("Action %.16llx (A_DISCONNECT) %s", A_HA_DISCONNECT, text);
	}
	if (pcmk_is_set(action, A_LRM_CONNECT)) {
	crm_trace("Action %.16llx (A_LRM_CONNECT) %s", A_LRM_CONNECT, text);
	}
	if (pcmk_is_set(action, A_LRM_EVENT)) {
	crm_trace("Action %.16llx (A_LRM_EVENT) %s", A_LRM_EVENT, text);
	}
	if (pcmk_is_set(action, A_LRM_INVOKE)) {
	crm_trace("Action %.16llx (A_LRM_INVOKE) %s", A_LRM_INVOKE, text);
	}
	if (pcmk_is_set(action, A_LRM_DISCONNECT)) {
	crm_trace("Action %.16llx (A_LRM_DISCONNECT) %s", A_LRM_DISCONNECT, text);
	}
	if (pcmk_is_set(action, A_DC_TIMER_STOP)) {
	crm_trace("Action %.16llx (A_DC_TIMER_STOP) %s", A_DC_TIMER_STOP, text);
	}
	if (pcmk_is_set(action, A_DC_TIMER_START)) {
	crm_trace("Action %.16llx (A_DC_TIMER_START) %s", A_DC_TIMER_START, text);
	}
	if (pcmk_is_set(action, A_INTEGRATE_TIMER_START)) {
	crm_trace("Action %.16llx (A_INTEGRATE_TIMER_START) %s", A_INTEGRATE_TIMER_START, text);
	}
	if (pcmk_is_set(action, A_INTEGRATE_TIMER_STOP)) {
	crm_trace("Action %.16llx (A_INTEGRATE_TIMER_STOP) %s", A_INTEGRATE_TIMER_STOP, text);
	}
	if (pcmk_is_set(action, A_FINALIZE_TIMER_START)) {
	crm_trace("Action %.16llx (A_FINALIZE_TIMER_START) %s", A_FINALIZE_TIMER_START, text);
	}
	if (pcmk_is_set(action, A_FINALIZE_TIMER_STOP)) {
	crm_trace("Action %.16llx (A_FINALIZE_TIMER_STOP) %s", A_FINALIZE_TIMER_STOP, text);
	}
	if (pcmk_is_set(action, A_ELECTION_COUNT)) {
	crm_trace("Action %.16llx (A_ELECTION_COUNT) %s", A_ELECTION_COUNT, text);
	}
	if (pcmk_is_set(action, A_ELECTION_VOTE)) {
	crm_trace("Action %.16llx (A_ELECTION_VOTE) %s", A_ELECTION_VOTE, text);
	}
	if (pcmk_is_set(action, A_ELECTION_CHECK)) {
	crm_trace("Action %.16llx (A_ELECTION_CHECK) %s", A_ELECTION_CHECK, text);
	}
	if (pcmk_is_set(action, A_CL_JOIN_ANNOUNCE)) {
	crm_trace("Action %.16llx (A_CL_JOIN_ANNOUNCE) %s", A_CL_JOIN_ANNOUNCE, text);
	}
	if (pcmk_is_set(action, A_CL_JOIN_REQUEST)) {
	crm_trace("Action %.16llx (A_CL_JOIN_REQUEST) %s", A_CL_JOIN_REQUEST, text);
	}
	if (pcmk_is_set(action, A_CL_JOIN_RESULT)) {
	crm_trace("Action %.16llx (A_CL_JOIN_RESULT) %s", A_CL_JOIN_RESULT, text);
	}
	if (pcmk_is_set(action, A_DC_JOIN_OFFER_ALL)) {
	crm_trace("Action %.16llx (A_DC_JOIN_OFFER_ALL) %s", A_DC_JOIN_OFFER_ALL, text);
	}
	if (pcmk_is_set(action, A_DC_JOIN_OFFER_ONE)) {
	crm_trace("Action %.16llx (A_DC_JOIN_OFFER_ONE) %s", A_DC_JOIN_OFFER_ONE, text);
	}
	if (pcmk_is_set(action, A_DC_JOIN_PROCESS_REQ)) {
	crm_trace("Action %.16llx (A_DC_JOIN_PROCESS_REQ) %s", A_DC_JOIN_PROCESS_REQ, text);
	}
	if (pcmk_is_set(action, A_DC_JOIN_PROCESS_ACK)) {
	crm_trace("Action %.16llx (A_DC_JOIN_PROCESS_ACK) %s", A_DC_JOIN_PROCESS_ACK, text);
	}
	if (pcmk_is_set(action, A_DC_JOIN_FINALIZE)) {
	crm_trace("Action %.16llx (A_DC_JOIN_FINALIZE) %s", A_DC_JOIN_FINALIZE, text);
	}
	if (pcmk_is_set(action, A_MSG_PROCESS)) {
	crm_trace("Action %.16llx (A_MSG_PROCESS) %s", A_MSG_PROCESS, text);
	}
	if (pcmk_is_set(action, A_MSG_ROUTE)) {
	crm_trace("Action %.16llx (A_MSG_ROUTE) %s", A_MSG_ROUTE, text);
	}
	if (pcmk_is_set(action, A_RECOVER)) {
	crm_trace("Action %.16llx (A_RECOVER) %s", A_RECOVER, text);
	}
	if (pcmk_is_set(action, A_DC_RELEASE)) {
	crm_trace("Action %.16llx (A_DC_RELEASE) %s", A_DC_RELEASE, text);
	}
	if (pcmk_is_set(action, A_DC_RELEASED)) {
	crm_trace("Action %.16llx (A_DC_RELEASED) %s", A_DC_RELEASED, text);
	}
	if (pcmk_is_set(action, A_DC_TAKEOVER)) {
	crm_trace("Action %.16llx (A_DC_TAKEOVER) %s", A_DC_TAKEOVER, text);
	}
	if (pcmk_is_set(action, A_SHUTDOWN)) {
	crm_trace("Action %.16llx (A_SHUTDOWN) %s", A_SHUTDOWN, text);
	}
	if (pcmk_is_set(action, A_SHUTDOWN_REQ)) {
	crm_trace("Action %.16llx (A_SHUTDOWN_REQ) %s", A_SHUTDOWN_REQ, text);
	}
	if (pcmk_is_set(action, A_STOP)) {
	crm_trace("Action %.16llx (A_STOP ) %s", A_STOP, text);
	}
	if (pcmk_is_set(action, A_EXIT_0)) {
	crm_trace("Action %.16llx (A_EXIT_0) %s", A_EXIT_0, text);
	}
	if (pcmk_is_set(action, A_EXIT_1)) {
	crm_trace("Action %.16llx (A_EXIT_1) %s", A_EXIT_1, text);
	}
	if (pcmk_is_set(action, A_CIB_START)) {
	crm_trace("Action %.16llx (A_CIB_START) %s", A_CIB_START, text);
	}
	if (pcmk_is_set(action, A_CIB_STOP)) {
	crm_trace("Action %.16llx (A_CIB_STOP) %s", A_CIB_STOP, text);
	}
	if (pcmk_is_set(action, A_TE_INVOKE)) {
	crm_trace("Action %.16llx (A_TE_INVOKE) %s", A_TE_INVOKE, text);
	}
	if (pcmk_is_set(action, A_TE_START)) {
	crm_trace("Action %.16llx (A_TE_START) %s", A_TE_START, text);
	}
	if (pcmk_is_set(action, A_TE_STOP)) {
	crm_trace("Action %.16llx (A_TE_STOP) %s", A_TE_STOP, text);
	}
	if (pcmk_is_set(action, A_TE_CANCEL)) {
	crm_trace("Action %.16llx (A_TE_CANCEL) %s", A_TE_CANCEL, text);
	}
	if (pcmk_is_set(action, A_PE_INVOKE)) {
	crm_trace("Action %.16llx (A_PE_INVOKE) %s", A_PE_INVOKE, text);
	}
	if (pcmk_is_set(action, A_PE_START)) {
	crm_trace("Action %.16llx (A_PE_START) %s", A_PE_START, text);
	}
	if (pcmk_is_set(action, A_PE_STOP)) {
	crm_trace("Action %.16llx (A_PE_STOP) %s", A_PE_STOP, text);
	}
	if (pcmk_is_set(action, A_NODE_BLOCK)) {
	crm_trace("Action %.16llx (A_NODE_BLOCK) %s", A_NODE_BLOCK, text);
	}
	if (pcmk_is_set(action, A_UPDATE_NODESTATUS)) {
	crm_trace("Action %.16llx (A_UPDATE_NODESTATUS) %s", A_UPDATE_NODESTATUS, text);
	}
	if (pcmk_is_set(action, A_LOG)) {
	crm_trace("Action %.16llx (A_LOG ) %s", A_LOG, text);
	}
	if (pcmk_is_set(action, A_ERROR)) {
	crm_trace("Action %.16llx (A_ERROR ) %s", A_ERROR, text);
	}
	if (pcmk_is_set(action, A_WARN)) {
	crm_trace("Action %.16llx (A_WARN ) %s", A_WARN, text);
	}
	}

	gboolean
	update_dc(xmlNode * msg)
	{
	char *last_dc = controld_globals.dc_name;
	const char *dc_version = NULL;
	const char *welcome_from = NULL;

	if (msg != NULL) {
	gboolean invalid = FALSE;

	dc_version = crm_element_value(msg, F_CRM_VERSION);
	welcome_from = crm_element_value(msg, F_CRM_HOST_FROM);

	CRM_CHECK(dc_version != NULL, return FALSE);
	CRM_CHECK(welcome_from != NULL, return FALSE);

	if (AM_I_DC
	&& !pcmk__str_eq(welcome_from, controld_globals.our_nodename,
	pcmk__str_casei)) {
	invalid = TRUE;

	} else if ((controld_globals.dc_name != NULL)
	&& !pcmk__str_eq(welcome_from, controld_globals.dc_name,
	pcmk__str_casei)) {
	invalid = TRUE;
	}

	if (invalid) {
	if (AM_I_DC) {
	crm_err("Not updating DC to %s (%s): we are also a DC",
	welcome_from, dc_version);
	} else {
	crm_warn("New DC %s is not %s",
	welcome_from, controld_globals.dc_name);
	}

	controld_set_fsa_action_flags(A_CL_JOIN_QUERY \| A_DC_TIMER_START);
	controld_trigger_fsa();
	return FALSE;
	}
	}

	controld_globals.dc_name = NULL; // freed as last_dc
	pcmk__str_update(&(controld_globals.dc_name), welcome_from);
	pcmk__str_update(&(controld_globals.dc_version), dc_version);

	if (pcmk__str_eq(controld_globals.dc_name, last_dc, pcmk__str_casei)) {
	/* do nothing */

	} else if (controld_globals.dc_name != NULL) {
	crm_node_t *dc_node = crm_get_peer(0, controld_globals.dc_name);

	crm_info("Set DC to %s (%s)",
	controld_globals.dc_name,
	pcmk__s(controld_globals.dc_version, "unknown version"));
	pcmk__update_peer_expected(__func__, dc_node, CRMD_JOINSTATE_MEMBER);

	} else if (last_dc != NULL) {
	crm_info("Unset DC (was %s)", last_dc);
	}

	free(last_dc);
	return TRUE;
	}

	void crmd_peer_down(crm_node_t *peer, bool full)
	{
	if(full && peer->state == NULL) {
	pcmk__update_peer_state(__func__, peer, CRM_NODE_LOST, 0);
	crm_update_peer_proc(__func__, peer, crm_proc_none, NULL);
	}
	crm_update_peer_join(__func__, peer, crm_join_none);
	pcmk__update_peer_expected(__func__, peer, CRMD_JOINSTATE_DOWN);
	}

	/*!
	* \internal
	* \brief Check feature set compatibility of DC and joining node
	*
	* Return true if a joining node's CRM feature set is compatible with the
	* current DC's. The feature sets are compatible if they have the same major
	* version number, and the DC's minor version number is the same or older than
	* the joining node's. The minor-minor version is intended solely to allow
	* resource agents to detect feature support, and so is ignored.
	*
	* \param[in] dc_version DC's feature set
	* \param[in] join_version Joining node's version
	*/
	bool
	feature_set_compatible(const char dc_version, const char join_version)
	{
	char *dc_minor = NULL;
	char *join_minor = NULL;
	long dc_v = 0;
	long join_v = 0;

	// Get DC's major version
	errno = 0;
	dc_v = strtol(dc_version, &dc_minor, 10);
	if (errno) {
	return FALSE;
	}

	// Get joining node's major version
	errno = 0;
	join_v = strtol(join_version, &join_minor, 10);
	if (errno) {
	return FALSE;
	}

	// Major version component must be identical
	if (dc_v != join_v) {
	return FALSE;
	}

	// Get DC's minor version
	if (*dc_minor == '.') {
	++dc_minor;
	}
	errno = 0;
	dc_v = strtol(dc_minor, NULL, 10);
	if (errno) {
	return FALSE;
	}

	// Get joining node's minor version
	if (*join_minor == '.') {
	++join_minor;
	}
	errno = 0;
	join_v = strtol(join_minor, NULL, 10);
	if (errno) {
	return FALSE;
	}

	// DC's minor version must be the same or older
	return dc_v <= join_v;
	}

	const char *
	get_node_id(xmlNode *lrm_rsc_op)
	{
	xmlNode *node = lrm_rsc_op;

	while ((node != NULL) && !pcmk__xe_is(node, XML_CIB_TAG_STATE)) {
	node = node->parent;
	}

	CRM_CHECK(node != NULL, return NULL);
	return ID(node);
	}

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