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	diff --git a/src/sbd-inquisitor.c b/src/sbd-inquisitor.c
	index 9f2de20..d917cd1 100644
	--- a/src/sbd-inquisitor.c
	+++ b/src/sbd-inquisitor.c
	@@ -1,1402 +1,1408 @@
	/*
	* Copyright (C) 2013 Lars Marowsky-Bree <lmb@suse.com>
	*
	* 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 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 program; if not, write to the Free Software Foundation, Inc.,
	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	*/

	#include <crm/common/util.h>
	#include "sbd.h"
	#define LOCKSTRLEN 11

	static struct servants_list_item *servants_leader = NULL;

	int disk_priority = 1;
	int check_pcmk = 1;
	int check_cluster = 1;
	int has_check_pcmk_env = false;
	int disk_count = 0;
	int servant_count = 0;
	int servant_restart_interval = 5;
	int servant_restart_count = 1;
	int start_mode = 0;
	char* pidfile = NULL;
	bool do_flush = true;
	char timeout_sysrq_char = 'b';
	bool move_to_root_cgroup = true;
	bool enforce_moving_to_root_cgroup = false;
	bool sync_resource_startup = false;

	int parse_device_line(const char *line);

	static int
	sanitize_numeric_option_value(const char *value)
	{
	char *end = NULL;
	long int result = -1;

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

	errno = 0;

	result = strtol(value, &end, 10);
	if (result <= INT_MIN \|\| result >= INT_MAX \|\| errno != 0) {
	result = -1;
	} else if (*end != '\0') {
	result = -1;
	}

	return (int)result;
	}

	static const char *
	sanitize_option_value(const char *value)
	{
	size_t max = 0;
	size_t lpc = 0;

	if (value == NULL) {
	return NULL;
	}

	max = strlen(value);

	for (lpc = 0; lpc < max; lpc++) {
	if (!isspace(value[lpc])) {
	break;
	}
	}

	return (strlen(value + lpc) > 0 ? (value + lpc) : NULL);
	}

	static const char *
	get_env_option(const char *option)
	{
	const char *value = getenv(option);

	return sanitize_option_value(value);
	}

	static int
	recruit_servant(const char *devname, pid_t pid)
	{
	struct servants_list_item *s = servants_leader;
	struct servants_list_item *newbie;

	if (lookup_servant_by_dev(devname)) {
	cl_log(LOG_DEBUG, "Servant %s already exists", devname);
	return 0;
	}

	newbie = malloc(sizeof(*newbie));
	if (newbie) {
	memset(newbie, 0, sizeof(*newbie));
	newbie->devname = strdup(devname);
	newbie->pid = pid;
	newbie->first_start = 1;
	}
	if (!newbie \|\| !newbie->devname) {
	fprintf(stderr, "heap allocation failed in recruit_servant.\n");
	exit(1);
	}

	/* some sanity-check on our newbie */
	if (sbd_is_disk(newbie)) {
	cl_log(LOG_INFO, "Monitoring %s", devname);
	disk_count++;
	} else if (sbd_is_pcmk(newbie) \|\| sbd_is_cluster(newbie)) {
	/* alive just after pcmk and cluster servants have shown up */
	newbie->outdated = 1;
	} else {
	/* toss our newbie */
	cl_log(LOG_ERR, "Refusing to recruit unrecognized servant %s", devname);
	free((void *) newbie->devname);
	free(newbie);
	return -1;
	}

	if (!s) {
	servants_leader = newbie;
	} else {
	while (s->next)
	s = s->next;
	s->next = newbie;
	}

	servant_count++;

	return 0;
	}

	int assign_servant(const char* devname, functionp_t functionp, int mode, const void* argp)
	{
	pid_t pid = 0;
	int rc = 0;

	pid = fork();
	if (pid == 0) { /* child */
	maximize_priority();
	sbd_set_format_string(QB_LOG_SYSLOG, devname);
	rc = (*functionp)(devname, mode, argp);
	if (rc == -1)
	exit(1);
	else
	exit(0);
	} else if (pid != -1) { /* parent */
	return pid;
	} else {
	cl_log(LOG_ERR,"Failed to fork servant");
	exit(1);
	}
	}

	struct servants_list_item lookup_servant_by_dev(const char devname)
	{
	struct servants_list_item *s;

	for (s = servants_leader; s; s = s->next) {
	if (strcasecmp(s->devname, devname) == 0)
	break;
	}
	return s;
	}

	struct servants_list_item *lookup_servant_by_pid(pid_t pid)
	{
	struct servants_list_item *s;

	for (s = servants_leader; s; s = s->next) {
	if (s->pid == pid)
	break;
	}
	return s;
	}

	int check_all_dead(void)
	{
	struct servants_list_item *s;
	int r = 0;
	union sigval svalue;

	for (s = servants_leader; s; s = s->next) {
	if (s->pid != 0) {
	r = sigqueue(s->pid, 0, svalue);
	if (r == -1 && errno == ESRCH)
	continue;
	return 0;
	}
	}
	return 1;
	}

	void servant_start(struct servants_list_item *s)
	{
	int r = 0;
	union sigval svalue;

	if (s->pid != 0) {
	r = sigqueue(s->pid, 0, svalue);
	if ((r != -1 \|\| errno != ESRCH))
	return;
	}
	s->restarts++;
	if (sbd_is_disk(s)) {
	#if SUPPORT_SHARED_DISK
	DBGLOG(LOG_INFO, "Starting servant for device %s", s->devname);
	s->pid = assign_servant(s->devname, servant_md, start_mode, s);
	#else
	cl_log(LOG_ERR, "Shared disk functionality not supported");
	return;
	#endif
	} else if(sbd_is_pcmk(s)) {
	DBGLOG(LOG_INFO, "Starting Pacemaker servant");
	s->pid = assign_servant(s->devname, servant_pcmk, start_mode, NULL);

	} else if(sbd_is_cluster(s)) {
	DBGLOG(LOG_INFO, "Starting Cluster servant");
	s->pid = assign_servant(s->devname, servant_cluster, start_mode, NULL);

	} else {
	cl_log(LOG_ERR, "Unrecognized servant: %s", s->devname);
	}

	clock_gettime(CLOCK_MONOTONIC, &s->t_started);
	return;
	}

	void servants_start(void)
	{
	struct servants_list_item *s;

	for (s = servants_leader; s; s = s->next) {
	s->restarts = 0;
	servant_start(s);
	}
	}

	void servants_kill(void)
	{
	struct servants_list_item *s;
	union sigval svalue;

	for (s = servants_leader; s; s = s->next) {
	if (s->pid != 0)
	sigqueue(s->pid, SIGKILL, svalue);
	}
	}

	static inline void cleanup_servant_by_pid(pid_t pid)
	{
	struct servants_list_item* s;

	s = lookup_servant_by_pid(pid);
	if (s) {
	cl_log(LOG_WARNING, "Servant for %s (pid: %i) has terminated",
	s->devname, s->pid);
	s->pid = 0;
	} else {
	/* This most likely is a stray signal from somewhere, or
	* a SIGCHLD for a process that has previously
	* explicitly disconnected. */
	DBGLOG(LOG_INFO, "cleanup_servant: Nothing known about pid %i",
	pid);
	}
	}

	int inquisitor_decouple(void)
	{
	pid_t ppid = getppid();
	union sigval signal_value;

	/* During start-up, we only arm the watchdog once we've got
	* quorum at least once. */
	if (watchdog_use) {
	if (watchdog_init() < 0) {
	return -1;
	}
	}

	if (ppid > 1) {
	sigqueue(ppid, SIG_LIVENESS, signal_value);
	}
	return 0;
	}

	static int sbd_lock_running(long pid)
	{
	int rc = 0;
	long mypid;
	int running = 0;
	char proc_path[PATH_MAX], exe_path[PATH_MAX], myexe_path[PATH_MAX];

	/* check if pid is running */
	if (kill(pid, 0) < 0 && errno == ESRCH) {
	goto bail;
	}

	#ifndef HAVE_PROC_PID
	return 1;
	#endif

	/* check to make sure pid hasn't been reused by another process */
	snprintf(proc_path, sizeof(proc_path), "/proc/%lu/exe", pid);
	rc = readlink(proc_path, exe_path, PATH_MAX-1);
	if(rc < 0) {
	cl_perror("Could not read from %s", proc_path);
	goto bail;
	}
	exe_path[rc] = 0;
	mypid = (unsigned long) getpid();
	snprintf(proc_path, sizeof(proc_path), "/proc/%lu/exe", mypid);
	rc = readlink(proc_path, myexe_path, PATH_MAX-1);
	if(rc < 0) {
	cl_perror("Could not read from %s", proc_path);
	goto bail;
	}
	myexe_path[rc] = 0;

	if(strcmp(exe_path, myexe_path) == 0) {
	running = 1;
	}

	bail:
	return running;
	}

	static int
	sbd_lock_pidfile(const char *filename)
	{
	char lf_name[256], tf_name[256], buf[LOCKSTRLEN+1];
	int fd;
	long pid, mypid;
	int rc;
	struct stat sbuf;

	if (filename == NULL) {
	errno = EFAULT;
	return -1;
	}

	mypid = (unsigned long) getpid();
	snprintf(lf_name, sizeof(lf_name), "%s",filename);
	snprintf(tf_name, sizeof(tf_name), "%s.%lu",
	filename, mypid);

	if ((fd = open(lf_name, O_RDONLY)) >= 0) {
	if (fstat(fd, &sbuf) >= 0 && sbuf.st_size < LOCKSTRLEN) {
	sleep(1); /* if someone was about to create one,
	* give'm a sec to do so
	* Though if they follow our protocol,
	* this won't happen. They should really
	* put the pid in, then link, not the
	* other way around.
	*/
	}
	if (read(fd, buf, sizeof(buf)) < 1) {
	/* lockfile empty -> rm it and go on */;
	} else {
	if (sscanf(buf, "%ld", &pid) < 1) {
	/* lockfile screwed up -> rm it and go on */
	} else {
	if (pid > 1 && (getpid() != pid)
	&& sbd_lock_running(pid)) {
	/* is locked by existing process
	* -> give up */
	close(fd);
	return -1;
	} else {
	/* stale lockfile -> rm it and go on */
	}
	}
	}
	unlink(lf_name);
	close(fd);
	}
	if ((fd = open(tf_name, O_CREAT \| O_WRONLY \| O_EXCL, 0644)) < 0) {
	/* Hmmh, why did we fail? Anyway, nothing we can do about it */
	return -3;
	}

	/* Slight overkill with the %d format ;-) /
	snprintf(buf, sizeof(buf), "%*lu\n", LOCKSTRLEN-1, mypid);

	if (write(fd, buf, LOCKSTRLEN) != LOCKSTRLEN) {
	/* Again, nothing we can do about this */
	rc = -3;
	close(fd);
	goto out;
	}
	close(fd);

	switch (link(tf_name, lf_name)) {
	case 0:
	if (stat(tf_name, &sbuf) < 0) {
	/* something weird happened */
	rc = -3;
	break;
	}
	if (sbuf.st_nlink < 2) {
	/* somehow, it didn't get through - NFS trouble? */
	rc = -2;
	break;
	}
	rc = 0;
	break;
	case EEXIST:
	rc = -1;
	break;
	default:
	rc = -3;
	}
	out:
	unlink(tf_name);
	return rc;
	}


	/*
	* Unlock a file (remove its lockfile)
	* do we need to check, if its (still) ours? No, IMHO, if someone else
	* locked our line, it's his fault -tho
	* returns 0 on success
	* <0 if some failure occured
	*/

	static int
	sbd_unlock_pidfile(const char *filename)
	{
	char lf_name[256];

	if (filename == NULL) {
	errno = EFAULT;
	return -1;
	}

	snprintf(lf_name, sizeof(lf_name), "%s", filename);

	return unlink(lf_name);
	}

	int cluster_alive(bool all)
	{
	int alive = 1;
	struct servants_list_item* s;

	if(servant_count == disk_count) {
	return 0;
	}

	for (s = servants_leader; s; s = s->next) {
	if (sbd_is_cluster(s) \|\| sbd_is_pcmk(s)) {
	if(s->outdated) {
	alive = 0;
	} else if(all == false) {
	return 1;
	}
	}
	}

	return alive;
	}

	int quorum_read(int good_servants)
	{
	if (disk_count > 2)
	return (good_servants > disk_count/2);
	else
	return (good_servants > 0);
	}

	void inquisitor_child(void)
	{
	int sig, pid;
	sigset_t procmask;
	siginfo_t sinfo;
	int status;
	struct timespec timeout;
	int exiting = 0;
	int decoupled = 0;
	int cluster_appeared = 0;
	int pcmk_override = 0;
	time_t latency;
	struct timespec t_last_tickle, t_now;
	struct servants_list_item* s;

	if (debug_mode) {
	cl_log(LOG_ERR, "DEBUG MODE %d IS ACTIVE - DO NOT RUN IN PRODUCTION!", debug_mode);
	}

	set_proc_title("sbd: inquisitor");

	if (pidfile) {
	if (sbd_lock_pidfile(pidfile) < 0) {
	exit(1);
	}
	}

	sigemptyset(&procmask);
	sigaddset(&procmask, SIGCHLD);
	sigaddset(&procmask, SIGTERM);
	sigaddset(&procmask, SIG_LIVENESS);
	sigaddset(&procmask, SIG_EXITREQ);
	sigaddset(&procmask, SIG_TEST);
	sigaddset(&procmask, SIG_PCMK_UNHEALTHY);
	sigaddset(&procmask, SIG_RESTART);
	sigaddset(&procmask, SIGUSR1);
	sigaddset(&procmask, SIGUSR2);
	sigprocmask(SIG_BLOCK, &procmask, NULL);

	servants_start();

	timeout.tv_sec = timeout_loop;
	timeout.tv_nsec = 0;
	clock_gettime(CLOCK_MONOTONIC, &t_last_tickle);

	while (1) {
	bool tickle = 0;
	bool can_detach = 0;
	int good_servants = 0;

	sig = sigtimedwait(&procmask, &sinfo, &timeout);

	clock_gettime(CLOCK_MONOTONIC, &t_now);

	if (sig == SIG_EXITREQ \|\| sig == SIGTERM) {
	servants_kill();
	watchdog_close(true);
	exiting = 1;
	} else if (sig == SIGCHLD) {
	while ((pid = waitpid(-1, &status, WNOHANG))) {
	if (pid == -1 && errno == ECHILD) {
	break;
	} else {
	s = lookup_servant_by_pid(pid);
	if (sbd_is_disk(s)) {
	if (WIFEXITED(status)) {
	switch(WEXITSTATUS(status)) {
	case EXIT_MD_SERVANT_IO_FAIL:
	DBGLOG(LOG_INFO, "Servant for %s requests to be disowned",
	s->devname);
	break;
	case EXIT_MD_SERVANT_REQUEST_RESET:
	cl_log(LOG_WARNING, "%s requested a reset", s->devname);
	do_reset();
	break;
	case EXIT_MD_SERVANT_REQUEST_SHUTOFF:
	cl_log(LOG_WARNING, "%s requested a shutoff", s->devname);
	do_off();
	break;
	case EXIT_MD_SERVANT_REQUEST_CRASHDUMP:
	cl_log(LOG_WARNING, "%s requested a crashdump", s->devname);
	do_crashdump();
	break;
	default:
	break;
	}
	}
	} else if (sbd_is_pcmk(s)) {
	if (WIFEXITED(status)) {
	switch(WEXITSTATUS(status)) {
	case EXIT_PCMK_SERVANT_GRACEFUL_SHUTDOWN:
	DBGLOG(LOG_INFO, "PCMK-Servant has exited gracefully");
	/* revert to state prior to pacemaker-detection */
	s->restarts = 0;
	s->restart_blocked = 0;
	cluster_appeared = 0;
	s->outdated = 1;
	s->t_last.tv_sec = 0;
	break;
	default:
	break;
	}
	}
	}
	cleanup_servant_by_pid(pid);
	}
	}
	} else if (sig == SIG_PCMK_UNHEALTHY) {
	s = lookup_servant_by_pid(sinfo.si_pid);
	if (sbd_is_cluster(s) \|\| sbd_is_pcmk(s)) {
	if (s->outdated == 0) {
	cl_log(LOG_WARNING, "%s health check: UNHEALTHY", s->devname);
	}
	s->t_last.tv_sec = 1;
	} else {
	cl_log(LOG_WARNING, "Ignoring SIG_PCMK_UNHEALTHY from unknown source");
	}
	} else if (sig == SIG_LIVENESS) {
	s = lookup_servant_by_pid(sinfo.si_pid);
	if (s) {
	s->first_start = 0;
	clock_gettime(CLOCK_MONOTONIC, &s->t_last);
	}

	} else if (sig == SIG_TEST) {
	} else if (sig == SIGUSR1) {
	if (exiting)
	continue;
	servants_start();
	}

	if (exiting) {
	if (check_all_dead()) {
	if (pidfile) {
	sbd_unlock_pidfile(pidfile);
	}
	exit(0);
	} else
	continue;
	}

	good_servants = 0;
	for (s = servants_leader; s; s = s->next) {
	int age = t_now.tv_sec - s->t_last.tv_sec;

	if (!s->t_last.tv_sec)
	continue;

	if (age < (int)(timeout_io+timeout_loop)) {
	if (sbd_is_disk(s)) {
	good_servants++;
	}
	if (s->outdated) {
	cl_log(LOG_NOTICE, "Servant %s is healthy (age: %d)", s->devname, age);
	}
	s->outdated = 0;

	} else if (!s->outdated) {
	if (!s->restart_blocked) {
	cl_log(LOG_WARNING, "Servant %s is outdated (age: %d)", s->devname, age);
	}
	s->outdated = 1;
	}
	}

	if(disk_count == 0) {
	/* NO disks, everything is up to the cluster */

	if(cluster_alive(true)) {
	/* We LIVE! */
	if(cluster_appeared == false) {
	cl_log(LOG_INFO, "Active cluster detected");
	}
	tickle = 1;
	can_detach = 1;
	cluster_appeared = 1;

	} else if(cluster_alive(false)) {
	if(!decoupled) {
	/* On the way up, detach and arm the watchdog */
	cl_log(LOG_INFO, "Partial cluster detected, detaching");
	}

	can_detach = 1;
	tickle = !cluster_appeared;

	} else if(!decoupled) {
	/* Stay alive until the cluster comes up */
	tickle = !cluster_appeared;
	}

	} else if(disk_priority == 1 \|\| servant_count == disk_count) {
	if (quorum_read(good_servants)) {
	/* There are disks and we're connected to the majority of them */
	tickle = 1;
	can_detach = 1;
	pcmk_override = 0;

	} else if (servant_count > disk_count && cluster_alive(true)) {
	tickle = 1;

	if(!pcmk_override) {
	cl_log(LOG_WARNING, "Majority of devices lost - surviving on pacemaker");
	pcmk_override = 1; /* Only log this message once */
	}
	}

	} else if(cluster_alive(true) && quorum_read(good_servants)) {
	/* Both disk and cluster servants are healthy */
	tickle = 1;
	can_detach = 1;
	cluster_appeared = 1;

	} else if(quorum_read(good_servants)) {
	/* The cluster takes priority but only once
	* connected for the first time.
	*
	* Until then, we tickle based on disk quorum.
	*/
	can_detach = 1;
	tickle = !cluster_appeared;
	}

	/* cl_log(LOG_DEBUG, "Tickle: q=%d, g=%d, p=%d, s=%d", */
	/* quorum_read(good_servants), good_servants, tickle, disk_count); */

	if(tickle) {
	watchdog_tickle();
	clock_gettime(CLOCK_MONOTONIC, &t_last_tickle);
	}

	if (!decoupled && can_detach) {
	/* We only do this at the point either the disk or
	* cluster servants become healthy
	*/
	cl_log(LOG_DEBUG, "Decoupling");
	if (inquisitor_decouple() < 0) {
	servants_kill();
	exiting = 1;
	continue;
	} else {
	decoupled = 1;
	}
	}

	/* Note that this can actually be negative, since we set
	* last_tickle after we set now. */
	latency = t_now.tv_sec - t_last_tickle.tv_sec;
	if (timeout_watchdog && (latency > (int)timeout_watchdog)) {
	if (!decoupled) {
	/* We're still being watched by our
	* parent. We don't fence, but exit. */
	cl_log(LOG_ERR, "SBD: Not enough votes to proceed. Aborting start-up.");
	servants_kill();
	exiting = 1;
	continue;
	}
	if (debug_mode < 2) {
	/* At level 2 or above, we do nothing, but expect
	* things to eventually return to
	* normal. */
	do_timeout_action();
	} else {
	cl_log(LOG_ERR, "SBD: DEBUG MODE: Would have fenced due to timeout!");
	}
	}

	if (timeout_watchdog_warn && (latency > (int)timeout_watchdog_warn)) {
	cl_log(LOG_WARNING,
	"Latency: No liveness for %ds exceeds watchdog warning timeout of %ds (healthy servants: %d)",
	(int)latency, (int)timeout_watchdog_warn, good_servants);

	if (debug_mode && watchdog_use) {
	/* In debug mode, trigger a reset before the watchdog can panic the machine */
	do_timeout_action();
	}
	}

	for (s = servants_leader; s; s = s->next) {
	int age = t_now.tv_sec - s->t_started.tv_sec;

	if (age > servant_restart_interval) {
	s->restarts = 0;
	s->restart_blocked = 0;
	}

	if (servant_restart_count
	&& (s->restarts >= servant_restart_count)
	&& !s->restart_blocked) {
	if (servant_restart_count > 1) {
	cl_log(LOG_WARNING, "Max retry count (%d) reached: not restarting servant for %s",
	(int)servant_restart_count, s->devname);
	}
	s->restart_blocked = 1;
	}

	if (!s->restart_blocked) {
	servant_start(s);
	}
	}
	}
	/* not reached */
	exit(0);
	}

	int inquisitor(void)
	{
	int sig, pid, inquisitor_pid;
	int status;
	sigset_t procmask;
	siginfo_t sinfo;

	/* Where's the best place for sysrq init ?*/
	sysrq_init();

	sigemptyset(&procmask);
	sigaddset(&procmask, SIGCHLD);
	sigaddset(&procmask, SIG_LIVENESS);
	sigprocmask(SIG_BLOCK, &procmask, NULL);

	inquisitor_pid = make_daemon();
	if (inquisitor_pid == 0) {
	inquisitor_child();
	}

	/* We're the parent. Wait for a happy signal from our child
	* before we proceed - we either get "SIG_LIVENESS" when the
	* inquisitor has completed the first successful round, or
	* ECHLD when it exits with an error. */

	while (1) {
	sig = sigwaitinfo(&procmask, &sinfo);
	if (sig == SIGCHLD) {
	while ((pid = waitpid(-1, &status, WNOHANG))) {
	if (pid == -1 && errno == ECHILD) {
	break;
	}
	/* We got here because the inquisitor
	* did not succeed. */
	return -1;
	}
	} else if (sig == SIG_LIVENESS) {
	/* Inquisitor started up properly. */
	return 0;
	} else {
	fprintf(stderr, "Nobody expected the spanish inquisition!\n");
	continue;
	}
	}
	/* not reached */
	return -1;
	}


	int
	parse_device_line(const char *line)
	{
	size_t lpc = 0;
	size_t last = 0;
	size_t max = 0;
	int found = 0;
	bool skip_space = true;
	int space_run = 0;

	if (!line) {
	return 0;
	}

	max = strlen(line);

	cl_log(LOG_DEBUG, "Processing %d bytes: [%s]", (int) max, line);

	for (lpc = 0; lpc <= max; lpc++) {
	if (isspace(line[lpc])) {
	if (skip_space) {
	last = lpc + 1;
	} else {
	space_run++;
	}
	continue;
	}
	skip_space = false;
	if (line[lpc] == ';' \|\| line[lpc] == 0) {
	int rc = 0;
	char *entry = calloc(1, 1 + lpc - last);

	if (entry) {
	rc = sscanf(line + last, "%[^;]", entry);
	} else {
	fprintf(stderr, "Heap allocation failed parsing device-line.\n");
	exit(1);
	}

	if (rc != 1) {
	cl_log(LOG_WARNING, "Could not parse: '%s'", line + last);
	} else {
	entry[strlen(entry)-space_run] = '\0';
	cl_log(LOG_DEBUG, "Adding '%s'", entry);
	if (recruit_servant(entry, 0) != 0) {
	free(entry);
	// sbd should refuse to start if any of the configured device names is invalid.
	return -1;
	}
	found++;
	}

	free(entry);
	skip_space = true;
	last = lpc + 1;
	}
	space_run = 0;
	}
	return found;
	}

	#define SBD_SOURCE_FILES "sbd-cluster.c,sbd-common.c,sbd-inquisitor.c,sbd-md.c,sbd-pacemaker.c,setproctitle.c"

	static void
	sbd_log_filter_ctl(const char *files, uint8_t priority)
	{
	if (files == NULL) {
	files = SBD_SOURCE_FILES;
	}

	qb_log_filter_ctl(QB_LOG_SYSLOG, QB_LOG_FILTER_ADD, QB_LOG_FILTER_FILE, files, priority);
	qb_log_filter_ctl(QB_LOG_STDERR, QB_LOG_FILTER_ADD, QB_LOG_FILTER_FILE, files, priority);
	}

	int
	arg_enabled(int arg_count)
	{
	return arg_count % 2;
	}

	int main(int argc, char argv, char envp)
	{
	int exit_status = 0;
	int c;
	int W_count = 0;
	int c_count = 0;
	int P_count = 0;
	int qb_facility;
	const char *value = NULL;
	bool delay_start = false;
	long delay = 0;
	char *timeout_action = NULL;

	if ((cmdname = strrchr(argv[0], '/')) == NULL) {
	cmdname = argv[0];
	} else {
	++cmdname;
	}

	watchdogdev = strdup("/dev/watchdog");
	watchdogdev_is_default = true;
	qb_facility = qb_log_facility2int("daemon");
	qb_log_init(cmdname, qb_facility, LOG_WARNING);
	sbd_set_format_string(QB_LOG_SYSLOG, "sbd");

	qb_log_ctl(QB_LOG_SYSLOG, QB_LOG_CONF_ENABLED, QB_TRUE);
	qb_log_ctl(QB_LOG_STDERR, QB_LOG_CONF_ENABLED, QB_FALSE);
	sbd_log_filter_ctl(NULL, LOG_NOTICE);

	sbd_get_uname();

	value = get_env_option("SBD_PACEMAKER");
	if(value) {
	check_pcmk = crm_is_true(value);
	check_cluster = crm_is_true(value);

	has_check_pcmk_env = true;
	}
	cl_log(LOG_INFO, "SBD_PACEMAKER set to: %d (%s)", (int)check_pcmk, value?value:"default");

	value = get_env_option("SBD_STARTMODE");
	if(value == NULL) {
	} else if(strcmp(value, "clean") == 0) {
	start_mode = 1;
	} else if(strcmp(value, "always") == 0) {
	start_mode = 0;
	}
	cl_log(LOG_INFO, "Start mode set to: %d (%s)", (int)start_mode, value?value:"default");

	value = get_env_option("SBD_WATCHDOG_DEV");
	if(value) {
	free(watchdogdev);
	watchdogdev = strdup(value);
	watchdogdev_is_default = false;
	}

	/* SBD_WATCHDOG has been dropped from sbd.sysconfig example.
	* This is for backward compatibility. */
	value = get_env_option("SBD_WATCHDOG");
	if(value) {
	watchdog_use = crm_is_true(value);
	}

	value = get_env_option("SBD_WATCHDOG_TIMEOUT");
	if(value) {
	timeout_watchdog = crm_get_msec(value) / 1000;
	}

	value = get_env_option("SBD_PIDFILE");
	if(value) {
	pidfile = strdup(value);
	cl_log(LOG_INFO, "pidfile set to %s", pidfile);
	}

	value = get_env_option("SBD_DELAY_START");
	if(value) {
	delay_start = crm_is_true(value);

	if (!delay_start) {
	delay = crm_get_msec(value) / 1000;
	if (delay > 0) {
	delay_start = true;
	}
	}
	}

	value = get_env_option("SBD_TIMEOUT_ACTION");
	if(value) {
	timeout_action = strdup(value);
	}

	value = get_env_option("SBD_MOVE_TO_ROOT_CGROUP");
	if(value) {
	move_to_root_cgroup = crm_is_true(value);

	if (move_to_root_cgroup) {
	enforce_moving_to_root_cgroup = true;
	} else {
	if (strcmp(value, "auto") == 0) {
	move_to_root_cgroup = true;
	}
	}
	}

	while ((c = getopt(argc, argv, "czC:DPRTWZhvw:d:n:p:1:2:3:4:5:t:I:F:S:s:r:")) != -1) {
	int sanitized_num_optarg = 0;
	/* Call it before checking optarg for NULL to make coverity happy */
	const char *sanitized_optarg = sanitize_option_value(optarg);

	if (optarg && ((sanitized_optarg == NULL) \|\|
	(strchr("SsC12345tIF", c) &&
	(sanitized_num_optarg = sanitize_numeric_option_value(sanitized_optarg)) < 0))) {
	fprintf(stderr, "Invalid value \"%s\" for option -%c\n", optarg, c);
	exit_status = -2;
	goto out;
	}

	switch (c) {
	case 'D':
	break;
	case 'Z':
	debug_mode++;
	cl_log(LOG_INFO, "Debug mode now at level %d", (int)debug_mode);
	break;
	case 'R':
	skip_rt = 1;
	cl_log(LOG_INFO, "Realtime mode deactivated.");
	break;
	case 'S':
	start_mode = sanitized_num_optarg;
	cl_log(LOG_INFO, "Start mode set to: %d", (int)start_mode);
	break;
	case 's':
	timeout_startup = sanitized_num_optarg;
	cl_log(LOG_INFO, "Start timeout set to: %d", (int)timeout_startup);
	break;
	case 'v':
	debug++;
	if(debug == 1) {
	sbd_log_filter_ctl(NULL, LOG_INFO);
	cl_log(LOG_INFO, "Verbose mode enabled.");

	} else if(debug == 2) {
	sbd_log_filter_ctl(NULL, LOG_DEBUG);
	cl_log(LOG_INFO, "Debug mode enabled.");

	} else if(debug == 3) {
	/* Go nuts, turn on pacemaker's logging too */
	sbd_log_filter_ctl("*", LOG_DEBUG);
	cl_log(LOG_INFO, "Debug library mode enabled.");
	}
	break;
	case 'T':
	watchdog_set_timeout = 0;
	cl_log(LOG_INFO, "Setting watchdog timeout disabled; using defaults.");
	break;
	case 'W':
	W_count++;
	break;
	case 'w':
	free(watchdogdev);
	watchdogdev = strdup(sanitized_optarg);
	watchdogdev_is_default = false;
	cl_log(LOG_NOTICE, "Using watchdog device '%s'", watchdogdev);
	break;
	case 'd':
	#if SUPPORT_SHARED_DISK
	if (recruit_servant(sanitized_optarg, 0) != 0) {
	fprintf(stderr, "Invalid device: %s\n", optarg);
	exit_status = -1;
	goto out;
	}
	#else
	fprintf(stderr, "Shared disk functionality not supported\n");
	exit_status = -2;
	goto out;
	#endif
	break;
	case 'c':
	c_count++;
	break;
	case 'P':
	P_count++;
	break;
	case 'z':
	disk_priority = 0;
	break;
	case 'n':
	local_uname = strdup(sanitized_optarg);
	cl_log(LOG_INFO, "Overriding local hostname to %s", local_uname);
	break;
	case 'p':
	pidfile = strdup(sanitized_optarg);
	cl_log(LOG_INFO, "pidfile set to %s", pidfile);
	break;
	case 'C':
	timeout_watchdog_crashdump = sanitized_num_optarg;
	cl_log(LOG_INFO, "Setting crashdump watchdog timeout to %d",
	(int)timeout_watchdog_crashdump);
	break;
	case '1':
	timeout_watchdog = sanitized_num_optarg;
	break;
	case '2':
	timeout_allocate = sanitized_num_optarg;
	break;
	case '3':
	timeout_loop = sanitized_num_optarg;
	break;
	case '4':
	timeout_msgwait = sanitized_num_optarg;
	break;
	case '5':
	timeout_watchdog_warn = sanitized_num_optarg;
	do_calculate_timeout_watchdog_warn = false;
	cl_log(LOG_INFO, "Setting latency warning to %d",
	(int)timeout_watchdog_warn);
	break;
	case 't':
	servant_restart_interval = sanitized_num_optarg;
	cl_log(LOG_INFO, "Setting servant restart interval to %d",
	(int)servant_restart_interval);
	break;
	case 'I':
	timeout_io = sanitized_num_optarg;
	cl_log(LOG_INFO, "Setting IO timeout to %d",
	(int)timeout_io);
	break;
	case 'F':
	servant_restart_count = sanitized_num_optarg;
	cl_log(LOG_INFO, "Servant restart count set to %d",
	(int)servant_restart_count);
	break;
	case 'r':
	if (timeout_action) {
	free(timeout_action);
	}
	timeout_action = strdup(sanitized_optarg);
	break;
	case 'h':
	usage();
	goto out;
	break;
	default:
	exit_status = -2;
	goto out;
	break;
	}
	}

	if (disk_count == 0) {
	/* if we already have disks from commandline
	then it is probably undesirable to add those
	from environment (general rule cmdline has precedence)
	*/
	value = get_env_option("SBD_DEVICE");
	if ((value) && strlen(value)) {
	#if SUPPORT_SHARED_DISK
	int devices = parse_device_line(value);
	if(devices < 1) {
	fprintf(stderr, "Invalid device line: %s\n", value);
	exit_status = -1;
	goto out;
	}
	#else
	fprintf(stderr, "Shared disk functionality not supported\n");
	exit_status = -2;
	goto out;
	#endif
	}
	}

	if (watchdogdev == NULL \|\| strcmp(watchdogdev, "/dev/null") == 0) {
	watchdog_use = 0;

	} else if (W_count > 0) {
	watchdog_use = arg_enabled(W_count);
	}

	if (watchdog_use) {
	cl_log(LOG_INFO, "Watchdog enabled.");
	} else {
	cl_log(LOG_INFO, "Watchdog disabled.");
	}

	if (c_count > 0) {
	check_cluster = arg_enabled(c_count);
	}

	if (P_count > 0) {
	int check_pcmk_arg = arg_enabled(P_count);

	if (has_check_pcmk_env && check_pcmk_arg != check_pcmk) {
	cl_log(LOG_WARNING, "Pacemaker integration is %s: "
	"SBD_PACEMAKER=%s is overridden by %s option. "
	"It's recommended to only use SBD_PACEMAKER.",
	check_pcmk_arg? "enabled" : "disabled",
	check_pcmk? "yes" : "no",
	check_pcmk_arg? "-P" : "-PP");
	}
	check_pcmk = check_pcmk_arg;
	}

	if ((disk_count > 0) && (strlen(local_uname) > SECTOR_NAME_MAX)) {
	fprintf(stderr, "Node name mustn't be longer than %d chars.\n",
	SECTOR_NAME_MAX);
	fprintf(stderr, "If uname is longer define a name to be used by sbd.\n");
	exit_status = -1;
	goto out;
	}

	if (disk_count > 3) {
	fprintf(stderr, "You can specify up to 3 devices via the -d option.\n");
	exit_status = -1;
	goto out;
	}

	/* There must at least be one command following the options: */
	if ((argc - optind) < 1) {
	fprintf(stderr, "Not enough arguments.\n");
	exit_status = -2;
	goto out;
	}

	if (init_set_proc_title(argc, argv, envp) < 0) {
	fprintf(stderr, "Allocation of proc title failed.\n");
	exit_status = -1;
	goto out;
	}

	if (timeout_action) {
	char *p[2];
	int i;
	char c;
	int nrflags = sscanf(timeout_action, "%m[a-z],%m[a-z]%c", &p[0], &p[1], &c);
	bool parse_error = (nrflags < 1) \|\| (nrflags > 2);

	for (i = 0; (i < nrflags) && (i < 2); i++) {
	if (!strcmp(p[i], "reboot")) {
	timeout_sysrq_char = 'b';
	} else if (!strcmp(p[i], "crashdump")) {
	timeout_sysrq_char = 'c';
	} else if (!strcmp(p[i], "off")) {
	timeout_sysrq_char = 'o';
	} else if (!strcmp(p[i], "flush")) {
	do_flush = true;
	} else if (!strcmp(p[i], "noflush")) {
	do_flush = false;
	} else {
	parse_error = true;
	}
	free(p[i]);
	}
	if (parse_error) {
	fprintf(stderr, "Failed to parse timeout-action \"%s\".\n",
	timeout_action);
	exit_status = -1;
	goto out;
	}
	}

	if (strcmp(argv[optind], "watch") == 0) {
	value = get_env_option("SBD_SYNC_RESOURCE_STARTUP");
	sync_resource_startup =
	crm_is_true(value?value:SBD_SYNC_RESOURCE_STARTUP_DEFAULT);

	#if !USE_PACEMAKERD_API
	if (sync_resource_startup) {
	fprintf(stderr, "Failed to sync resource-startup as "
	"SBD was built against pacemaker not supporting pacemakerd-API.\n");
	exit_status = -1;
	goto out;
	}
	#else
	if (check_pcmk && !sync_resource_startup) {
	cl_log(LOG_WARNING, "SBD built against pacemaker supporting "
	"pacemakerd-API. Should think about enabling "
	"SBD_SYNC_RESOURCE_STARTUP.");
	+
	+ } else if (!check_pcmk && sync_resource_startup) {
	+ fprintf(stderr, "Set SBD_PACEMAKER=yes to allow resource startup syncing. "
	+ "Otherwise explicitly set SBD_SYNC_RESOURCE_STARTUP=no if to intentionally disable.\n");
	+ exit_status = -1;
	+ goto out;
	}
	#endif
	}

	#if SUPPORT_SHARED_DISK
	if (strcmp(argv[optind], "create") == 0) {
	exit_status = init_devices(servants_leader);

	} else if (strcmp(argv[optind], "dump") == 0) {
	exit_status = dump_headers(servants_leader);

	} else if (strcmp(argv[optind], "allocate") == 0) {
	exit_status = allocate_slots(argv[optind + 1], servants_leader);

	} else if (strcmp(argv[optind], "list") == 0) {
	exit_status = list_slots(servants_leader);

	} else if (strcmp(argv[optind], "message") == 0) {
	exit_status = messenger(argv[optind + 1], argv[optind + 2], servants_leader);

	} else if (strcmp(argv[optind], "ping") == 0) {
	exit_status = ping_via_slots(argv[optind + 1], servants_leader);

	} else
	#endif
	if (strcmp(argv[optind], "query-watchdog") == 0) {
	exit_status = watchdog_info();
	} else if (strcmp(argv[optind], "test-watchdog") == 0) {
	exit_status = watchdog_test();
	} else if (strcmp(argv[optind], "watch") == 0) {
	/* sleep $(sbd $SBD_DEVICE_ARGS dump \| grep -m 1 msgwait \| awk '{print $4}') 2>/dev/null */

	const char *delay_source = delay ? "SBD_DELAY_START" : "";

	#if SUPPORT_SHARED_DISK
	if(disk_count > 0) {
	/* If no devices are specified, its not an error to be unable to find one */
	open_any_device(servants_leader);

	if (delay_start && delay <= 0) {
	delay = get_first_msgwait(servants_leader);

	if (delay > 0) {
	delay_source = "msgwait";
	} else {
	cl_log(LOG_WARNING, "No 'msgwait' value from disk, using '2 * watchdog-timeout' for 'delay' starting");
	}
	}
	}
	#endif
	/* Re-calculate timeout_watchdog_warn based on any timeout_watchdog from:
	* SBD_WATCHDOG_TIMEOUT, -1 option or on-disk setting read with open_any_device() */
	if (do_calculate_timeout_watchdog_warn) {
	timeout_watchdog_warn = calculate_timeout_watchdog_warn(timeout_watchdog);
	}

	if (delay_start) {
	/* diskless mode or disk read issues causing get_first_msgwait() to return a 0 for delay */
	if (delay <= 0) {
	delay = 2 * timeout_watchdog;
	delay_source = "watchdog-timeout * 2";
	}

	cl_log(LOG_DEBUG, "Delay start (yes), (delay: %ld), (delay source: %s)", delay, delay_source);

	sleep((unsigned long) delay);

	} else {
	cl_log(LOG_DEBUG, "Delay start (no)");
	}

	/* We only want this to have an effect during watch right now;
	* pinging and fencing would be too confused */
	cl_log(LOG_INFO, "Turning on pacemaker checks: %d", check_pcmk);
	if (check_pcmk) {
	recruit_servant("pcmk", 0);
	#if SUPPORT_PLUGIN
	check_cluster = 1;
	#endif
	}

	cl_log(LOG_INFO, "Turning on cluster checks: %d", check_cluster);
	if (check_cluster) {
	recruit_servant("cluster", 0);
	}

	cl_log(LOG_NOTICE, "%s flush + write \'%c\' to sysrq in case of timeout",
	do_flush?"Do":"Skip", timeout_sysrq_char);
	exit_status = inquisitor();
	} else {
	exit_status = -2;
	}

	out:
	if (timeout_action) {
	free(timeout_action);
	}
	if (exit_status < 0) {
	if (exit_status == -2) {
	usage();
	} else {
	fprintf(stderr, "sbd failed; please check the logs.\n");
	}
	return (1);
	}
	return (0);
	}

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