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	diff --git a/src/sbd-cluster.c b/src/sbd-cluster.c
	index ae4750e..c7328af 100644
	--- a/src/sbd-cluster.c
	+++ b/src/sbd-cluster.c
	@@ -1,552 +1,553 @@
	/*
	* Copyright (C) 2013 Lars Marowsky-Bree <lmb@suse.com>
	*
	* Based on crm_mon.c, which was:
	* 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 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 <errno.h>
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>
	#include <dirent.h>
	#include <sys/stat.h>
	#include <sys/types.h>

	#include <config.h>
	#include <crm_config.h>

	#include <crm/cluster.h>
	#include <crm/common/mainloop.h>

	#if CHECK_TWO_NODE
	#include <glib-unix.h>
	#endif

	#include "sbd.h"

	//undef SUPPORT_PLUGIN
	//define SUPPORT_PLUGIN 1

	static bool remote_node = false;
	static pid_t remoted_pid = 0;
	static int reconnect_msec = 1000;
	static GMainLoop *mainloop = NULL;
	static guint notify_timer = 0;
	static crm_cluster_t cluster;
	static gboolean sbd_remote_check(gpointer user_data);
	static long unsigned int find_pacemaker_remote(void);
	static void sbd_membership_destroy(gpointer user_data);


	#if SUPPORT_PLUGIN
	static void
	sbd_plugin_membership_dispatch(cpg_handle_t handle,
	const struct cpg_name *groupName,
	uint32_t nodeid, uint32_t pid, void *msg, size_t msg_len)
	{
	if(msg_len > 0) {
	set_servant_health(pcmk_health_online, LOG_INFO,
	"Connected to %s", name_for_cluster_type(get_cluster_type()));
	} else {
	set_servant_health(pcmk_health_unclean, LOG_WARNING,
	"Broken %s message", name_for_cluster_type(get_cluster_type()));
	}
	notify_parent();
	return;
	}
	#endif

	#if SUPPORT_COROSYNC

	static bool two_node = false;
	static bool ever_seen_both = false;
	static int cpg_membership_entries = -1;

	#if CHECK_TWO_NODE
	#include <corosync/cmap.h>

	static cmap_handle_t cmap_handle = 0;
	static cmap_track_handle_t track_handle = 0;
	static GSource *cmap_source = NULL;
	#endif

	void
	sbd_cpg_membership_health_update()
	{
	if(cpg_membership_entries > 0) {
	bool quorum_is_suspect =
	(two_node && ever_seen_both && cpg_membership_entries == 1);

	if (!quorum_is_suspect) {
	set_servant_health(pcmk_health_online, LOG_INFO,
	"Connected to %s (%u members)",
	name_for_cluster_type(get_cluster_type()),
	cpg_membership_entries
	);
	} else {
	/* Alternative would be asking votequorum for number of votes.
	* Using pacemaker's cpg as source for number of active nodes
	* avoids binding to an additional library, is definitely
	* less code to write and we wouldn't have to combine data
	* from 3 sources (cmap, cpq & votequorum) in a potentially
	* racy environment.
	*/
	set_servant_health(pcmk_health_noquorum, LOG_WARNING,
	"Connected to %s but requires both nodes present",
	name_for_cluster_type(get_cluster_type())
	);
	}

	if (cpg_membership_entries > 1) {
	ever_seen_both = true;
	}
	} else {
	set_servant_health(pcmk_health_unclean, LOG_WARNING,
	"Empty %s membership", name_for_cluster_type(get_cluster_type()));
	}
	}

	void
	sbd_cpg_membership_dispatch(cpg_handle_t handle,
	const struct cpg_name *groupName,
	const struct cpg_address *member_list, size_t member_list_entries,
	const struct cpg_address *left_list, size_t left_list_entries,
	const struct cpg_address *joined_list, size_t joined_list_entries)
	{
	cpg_membership_entries = member_list_entries;
	sbd_cpg_membership_health_update();
	notify_parent();
	}

	#if CHECK_TWO_NODE
	static void sbd_cmap_notify_fn(
	cmap_handle_t cmap_handle,
	cmap_track_handle_t cmap_track_handle,
	int32_t event,
	const char *key_name,
	struct cmap_notify_value new_val,
	struct cmap_notify_value old_val,
	void *user_data)
	{
	if (new_val.type == CMAP_VALUETYPE_UINT8) {
	switch (event) {
	case CMAP_TRACK_ADD:
	case CMAP_TRACK_MODIFY:
	two_node = ((uint8_t ) new_val.data);
	break;
	case CMAP_TRACK_DELETE:
	two_node = false;
	break;
	default:
	return;
	}
	sbd_cpg_membership_health_update();
	notify_parent();
	}
	}

	static gboolean
	cmap_dispatch_callback (gpointer user_data)
	{
	cmap_dispatch(cmap_handle, CS_DISPATCH_ALL);
	return TRUE;
	}

	static gboolean
	sbd_get_two_node(void)
	{
	uint8_t two_node_u8 = 0;
	int cmap_fd;

	if (!track_handle) {
	if (cmap_initialize(&cmap_handle) != CS_OK) {
	cl_log(LOG_WARNING, "Cannot initialize CMAP service\n");
	goto out;
	}

	if (cmap_track_add(cmap_handle, "quorum.two_node",
	CMAP_TRACK_DELETE\|CMAP_TRACK_MODIFY\|CMAP_TRACK_ADD,
	sbd_cmap_notify_fn, NULL, &track_handle) != CS_OK) {
	cl_log(LOG_WARNING, "Failed adding CMAP tracker for 2Node-mode\n");
	goto out;
	}

	/* add the tracker to mainloop */
	if (cmap_fd_get(cmap_handle, &cmap_fd) != CS_OK) {
	cl_log(LOG_WARNING, "Failed to get a file handle for cmap\n");
	goto out;
	}

	if (!(cmap_source = g_unix_fd_source_new (cmap_fd, G_IO_IN))) {
	cl_log(LOG_WARNING, "Couldn't create source for cmap\n");
	goto out;
	}
	g_source_set_callback(cmap_source, cmap_dispatch_callback, NULL, NULL);
	g_source_attach(cmap_source, NULL);
	}

	if (cmap_get_uint8(cmap_handle, "quorum.two_node", &two_node_u8) == CS_OK) {
	- cl_log(LOG_NOTICE, "Corosync is%s in 2Node-mode", two_node_u8?"":" not");
	+ cl_log(two_node_u8? LOG_NOTICE : LOG_INFO,
	+ "Corosync is%s in 2Node-mode", two_node_u8?"":" not");
	two_node = two_node_u8;
	} else {
	- cl_log(LOG_NOTICE, "quorum.two_node present in cmap\n");
	+ cl_log(LOG_INFO, "quorum.two_node not present in cmap\n");
	}
	return TRUE;

	out:
	if (cmap_source) {
	g_source_destroy(cmap_source);
	cmap_source = NULL;
	}
	if (track_handle) {
	cmap_track_delete(cmap_handle, track_handle);
	track_handle = 0;
	}
	if (cmap_handle) {
	cmap_finalize(cmap_handle);
	cmap_handle = 0;
	}

	return FALSE;
	}
	#endif
	#endif

	static gboolean
	notify_timer_cb(gpointer data)
	{
	cl_log(LOG_DEBUG, "Refreshing %sstate", remote_node?"remote ":"");

	if(remote_node) {
	sbd_remote_check(NULL);
	return TRUE;
	}

	switch (get_cluster_type()) {
	#if HAVE_DECL_PCMK_CLUSTER_CLASSIC_AIS
	case pcmk_cluster_classic_ais:
	send_cluster_text(crm_class_quorum, NULL, TRUE, NULL, crm_msg_ais);
	break;

	#endif
	case pcmk_cluster_corosync:
	#if HAVE_DECL_PCMK_CLUSTER_CMAN
	case pcmk_cluster_cman:
	#endif
	/* TODO - Make a CPG call and only call notify_parent() when we get a reply */
	notify_parent();
	break;

	default:
	break;
	}
	return TRUE;
	}


	static void
	sbd_membership_connect(void)
	{
	bool connected = false;

	- cl_log(LOG_NOTICE, "Attempting cluster connection");
	+ cl_log(LOG_INFO, "Attempting cluster connection");

	cluster.destroy = sbd_membership_destroy;

	#if SUPPORT_PLUGIN
	cluster.cpg.cpg_deliver_fn = sbd_plugin_membership_dispatch;
	#endif

	#if SUPPORT_COROSYNC
	cluster.cpg.cpg_confchg_fn = sbd_cpg_membership_dispatch;
	#endif

	while(connected == false) {

	enum cluster_type_e stack = get_cluster_type();
	if(get_cluster_type() == pcmk_cluster_unknown) {
	crm_debug("Attempting pacemaker remote connection");
	/* Nothing is up, go looking for the pacemaker remote process */
	if(find_pacemaker_remote() > 0) {
	connected = true;
	}

	} else {
	cl_log(LOG_INFO, "Attempting connection to %s", name_for_cluster_type(stack));

	#if SUPPORT_COROSYNC && CHECK_TWO_NODE
	if (sbd_get_two_node()) {
	#endif

	if(crm_cluster_connect(&cluster)) {
	connected = true;
	}

	#if SUPPORT_COROSYNC && CHECK_TWO_NODE
	}
	#endif
	}

	if(connected == false) {
	cl_log(LOG_INFO, "Failed, retrying in %ds", reconnect_msec / 1000);
	sleep(reconnect_msec / 1000);
	}
	}

	- set_servant_health(pcmk_health_transient, LOG_NOTICE, "Connected, waiting for initial membership");
	+ set_servant_health(pcmk_health_transient, LOG_INFO, "Connected, waiting for initial membership");
	notify_parent();

	notify_timer_cb(NULL);
	}

	static void
	sbd_membership_destroy(gpointer user_data)
	{
	cl_log(LOG_WARNING, "Lost connection to %s", name_for_cluster_type(get_cluster_type()));

	set_servant_health(pcmk_health_unclean, LOG_ERR, "Cluster connection terminated");
	notify_parent();

	/* Attempt to reconnect, the watchdog will take the node down if the problem isn't transient */
	sbd_membership_connect();
	}

	/*
	* \internal
	* \brief Get process ID and name associated with a /proc directory entry
	*
	* \param[in] entry Directory entry (must be result of readdir() on /proc)
	* \param[out] name If not NULL, a char[64] to hold the process name
	* \param[out] pid If not NULL, will be set to process ID of entry
	*
	* \return 0 on success, -1 if entry is not for a process or info not found
	*
	* \note This should be called only on Linux systems, as not all systems that
	* support /proc store process names and IDs in the same way.
	* Copied from the Pacemaker implementation.
	*/
	int
	sbd_procfs_process_info(struct dirent entry, char name, int *pid)
	{
	int fd, local_pid;
	FILE *file;
	struct stat statbuf;
	char key[16] = { 0 }, procpath[128] = { 0 };

	/* We're only interested in entries whose name is a PID,
	* so skip anything non-numeric or that is too long.
	*
	* 114 = 128 - strlen("/proc/") - strlen("/status") - 1
	*/
	local_pid = atoi(entry->d_name);
	if ((local_pid <= 0) \|\| (strlen(entry->d_name) > 114)) {
	return -1;
	}
	if (pid) {
	*pid = local_pid;
	}

	/* Get this entry's file information */
	strcpy(procpath, "/proc/");
	strcat(procpath, entry->d_name);
	fd = open(procpath, O_RDONLY);
	if (fd < 0 ) {
	return -1;
	}
	if (fstat(fd, &statbuf) < 0) {
	close(fd);
	return -1;
	}
	close(fd);

	/* We're only interested in subdirectories */
	if (!S_ISDIR(statbuf.st_mode)) {
	return -1;
	}

	/* Read the first entry ("Name:") from the process's status file.
	* We could handle the valgrind case if we parsed the cmdline file
	* instead, but that's more of a pain than it's worth.
	*/
	if (name != NULL) {
	strcat(procpath, "/status");
	file = fopen(procpath, "r");
	if (!file) {
	return -1;
	}
	if ((fscanf(file, "%15s%63s", key, name) != 2)
	\|\| safe_str_neq(key, "Name:")) {
	fclose(file);
	return -1;
	}
	fclose(file);
	}

	return 0;
	}


	static gboolean
	sbd_remote_check(gpointer user_data)
	{
	static int have_proc_pid = 0;

	int running = 0;

	cl_log(LOG_DEBUG, "Checking pacemaker remote connection: %d/%d", have_proc_pid, remoted_pid);

	if(have_proc_pid == 0) {
	char proc_path[PATH_MAX], exe_path[PATH_MAX];

	/* check to make sure pid hasn't been reused by another process */
	snprintf(proc_path, sizeof(proc_path), "/proc/%lu/exe", (long unsigned int)getpid());

	have_proc_pid = 1;
	if(readlink(proc_path, exe_path, PATH_MAX - 1) < 0) {
	have_proc_pid = -1;
	}
	}

	if (remoted_pid <= 0) {
	set_servant_health(pcmk_health_transient, LOG_WARNING, "No Pacemaker Remote connection");
	goto notify;

	} else if (kill(remoted_pid, 0) < 0 && errno == ESRCH) {
	/* Not running */

	} else if(have_proc_pid == -1) {
	running = 1;
	cl_log(LOG_DEBUG, "Poccess %ld is active", (long)remoted_pid);

	} else {
	int rc = 0;
	char proc_path[PATH_MAX], exe_path[PATH_MAX], expected_path[PATH_MAX];

	/* check to make sure pid hasn't been reused by another process */
	snprintf(proc_path, sizeof(proc_path), "/proc/%lu/exe", (long unsigned int)remoted_pid);

	rc = readlink(proc_path, exe_path, PATH_MAX - 1);
	if (rc < 0) {
	crm_perror(LOG_ERR, "Could not read from %s", proc_path);
	goto done;
	}
	exe_path[rc] = 0;

	rc = snprintf(expected_path, sizeof(proc_path), "%s/pacemaker_remoted", SBINDIR);
	expected_path[rc] = 0;

	if (strcmp(exe_path, expected_path) == 0) {
	cl_log(LOG_DEBUG, "Process %s (%ld) is active",
	exe_path, (long)remoted_pid);
	running = 1;
	}
	}

	done:

	if(running) {
	set_servant_health(pcmk_health_online, LOG_INFO,
	"Connected to Pacemaker Remote %lu", (long unsigned int)remoted_pid);
	} else {
	set_servant_health(pcmk_health_unclean, LOG_WARNING,
	"Connection to Pacemaker Remote %lu lost", (long unsigned int)remoted_pid);
	}

	notify:
	notify_parent();

	if(running == 0) {
	sbd_membership_connect();
	}
	return true;
	}

	static long unsigned int
	find_pacemaker_remote(void)
	{
	DIR *dp;
	char entry_name[64];
	struct dirent *entry;

	dp = opendir("/proc");
	if (!dp) {
	/* no proc directory to search through */
	cl_log(LOG_NOTICE, "Can not read /proc directory to track existing components");
	return FALSE;
	}

	while ((entry = readdir(dp)) != NULL) {
	int pid;

	if (sbd_procfs_process_info(entry, entry_name, &pid) < 0) {
	continue;
	}

	/* entry_name is truncated to 16 characters including the nul terminator */
	cl_log(LOG_DEBUG, "Found %s at %u", entry_name, pid);
	if (strcmp(entry_name, "pacemaker_remot") == 0) {
	cl_log(LOG_NOTICE, "Found Pacemaker Remote at PID %u", pid);
	remoted_pid = pid;
	remote_node = true;
	break;
	}
	}

	closedir(dp);

	return remoted_pid;
	}

	static void
	clean_up(int rc)
	{
	return;
	}

	static void
	cluster_shutdown(int nsig)
	{
	clean_up(0);
	}

	int
	servant_cluster(const char diskname, int mode, const void argp)
	{
	enum cluster_type_e cluster_stack = get_cluster_type();

	crm_system_name = strdup("sbd:cluster");
	- cl_log(LOG_INFO, "Monitoring %s cluster health", name_for_cluster_type(cluster_stack));
	+ cl_log(LOG_NOTICE, "Monitoring %s cluster health", name_for_cluster_type(cluster_stack));
	set_proc_title("sbd: watcher: Cluster");

	sbd_membership_connect();

	/* stonith_our_uname = cluster.uname; */
	/* stonith_our_uuid = cluster.uuid; */

	mainloop = g_main_new(FALSE);
	notify_timer = g_timeout_add(timeout_loop * 1000, notify_timer_cb, NULL);

	mainloop_add_signal(SIGTERM, cluster_shutdown);
	mainloop_add_signal(SIGINT, cluster_shutdown);

	g_main_run(mainloop);
	g_main_destroy(mainloop);

	clean_up(0);
	return 0; /* never reached */
	}
	diff --git a/src/sbd-common.c b/src/sbd-common.c
	index f22c4f2..0ce6478 100644
	--- a/src/sbd-common.c
	+++ b/src/sbd-common.c
	@@ -1,971 +1,971 @@
	/*
	* 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 "sbd.h"
	#include <sys/reboot.h>
	#include <sys/types.h>
	#ifdef __GLIBC__
	#include <sys/sysmacros.h>
	#endif
	#include <sys/stat.h>
	#include <pwd.h>
	#include <unistd.h>
	#include <dirent.h>

	#ifdef _POSIX_MEMLOCK
	# include <sys/mman.h>
	#endif

	/* Tunable defaults: */
	#if defined(__s390__) \|\| defined(__s390x__)
	unsigned long timeout_watchdog = 15;
	int timeout_msgwait = 30;
	#else
	unsigned long timeout_watchdog = 5;
	int timeout_msgwait = 10;
	#endif
	unsigned long timeout_watchdog_warn = 3;
	int timeout_allocate = 2;
	int timeout_loop = 1;
	int timeout_io = 3;
	int timeout_startup = 120;

	int watchdog_use = 1;
	int watchdog_set_timeout = 1;
	unsigned long timeout_watchdog_crashdump = 240;
	int skip_rt = 0;
	int debug = 0;
	int debug_mode = 0;
	char *watchdogdev = NULL;
	bool watchdogdev_is_default = false;
	char * local_uname;

	/* Global, non-tunable variables: */
	int sector_size = 0;
	int watchdogfd = -1;
	int servant_health = 0;

	/const char devname;*/
	const char *cmdname;

	void
	usage(void)
	{
	fprintf(stderr,
	"Shared storage fencing tool.\n"
	"Syntax:\n"
	" %s <options> <command> <cmdarguments>\n"
	"Options:\n"
	"-d <devname> Block device to use (mandatory; can be specified up to 3 times)\n"
	"-h Display this help.\n"
	"-n <node> Set local node name; defaults to uname -n (optional)\n"
	"\n"
	"-R Do NOT enable realtime priority (debugging only)\n"
	"-W Use watchdog (recommended) (watch only)\n"
	"-w <dev> Specify watchdog device (optional) (watch only)\n"
	"-T Do NOT initialize the watchdog timeout (watch only)\n"
	"-S <0\|1> Set start mode if the node was previously fenced (watch only)\n"
	"-p <path> Write pidfile to the specified path (watch only)\n"
	"-v Enable some verbose debug logging (optional)\n"
	"\n"
	"-1 <N> Set watchdog timeout to N seconds (optional, create only)\n"
	"-2 <N> Set slot allocation timeout to N seconds (optional, create only)\n"
	"-3 <N> Set daemon loop timeout to N seconds (optional, create only)\n"
	"-4 <N> Set msgwait timeout to N seconds (optional, create only)\n"
	"-5 <N> Warn if loop latency exceeds threshold (optional, watch only)\n"
	" (default is 3, set to 0 to disable)\n"
	"-C <N> Watchdog timeout to set before crashdumping (def: 240s, optional)\n"
	"-I <N> Async IO read timeout (defaults to 3 * loop timeout, optional)\n"
	"-s <N> Timeout to wait for devices to become available (def: 120s)\n"
	"-t <N> Dampening delay before faulty servants are restarted (optional)\n"
	" (default is 5, set to 0 to disable)\n"
	"-F <N> # of failures before a servant is considered faulty (optional)\n"
	" (default is 1, set to 0 to disable)\n"
	"-P Check Pacemaker quorum and node health (optional, watch only)\n"
	"-Z Enable trace mode. WARNING: UNSAFE FOR PRODUCTION!\n"
	"Commands:\n"
	#if SUPPORT_SHARED_DISK
	"create initialize N slots on <dev> - OVERWRITES DEVICE!\n"
	"list List all allocated slots on device, and messages.\n"
	"dump Dump meta-data header from device.\n"
	"allocate <node>\n"
	" Allocate a slot for node (optional)\n"
	"message <node> (test\|reset\|off\|clear\|exit)\n"
	" Writes the specified message to node's slot.\n"
	#endif
	"watch Loop forever, monitoring own slot\n"
	"query-watchdog Check for available watchdog-devices and print some info\n"
	"test-watchdog Test the watchdog-device selected.\n"
	" Attention: This will arm the watchdog and have your system reset\n"
	" in case your watchdog is working properly!\n"
	, cmdname);
	}

	static int
	watchdog_init_interval_fd(int wdfd, int timeout)
	{
	if (ioctl(wdfd, WDIOC_SETTIMEOUT, &timeout) < 0) {
	cl_perror( "WDIOC_SETTIMEOUT"
	": Failed to set watchdog timer to %u seconds.",
	timeout);
	cl_log(LOG_CRIT, "Please validate your watchdog configuration!");
	cl_log(LOG_CRIT, "Choose a different watchdog driver or specify -T to skip this if you are completely sure.");
	return -1;
	}
	return 0;
	}

	int
	watchdog_init_interval(void)
	{
	if (watchdogfd < 0) {
	return 0;
	}

	if (watchdog_set_timeout == 0) {
	cl_log(LOG_INFO, "NOT setting watchdog timeout on explicit user request!");
	return 0;
	}

	if (watchdog_init_interval_fd(watchdogfd, timeout_watchdog) < 0) {
	return -1;
	}
	cl_log(LOG_INFO, "Set watchdog timeout to %u seconds.", (int) timeout_watchdog);
	return 0;
	}

	static int
	watchdog_tickle_fd(int wdfd, char *wddev)
	{
	if (write(wdfd, "", 1) != 1) {
	cl_perror("Watchdog write failure: %s!", wddev);
	return -1;
	}
	return 0;
	}

	int
	watchdog_tickle(void)
	{
	if (watchdogfd >= 0) {
	return watchdog_tickle_fd(watchdogfd, watchdogdev);
	}
	return 0;
	}

	static int
	watchdog_init_fd(char *wddev, int timeout)
	{
	int wdfd;

	wdfd = open(wddev, O_WRONLY);
	if (wdfd >= 0) {
	if (((timeout >= 0) && (watchdog_init_interval_fd(wdfd, timeout) < 0))
	\|\| (watchdog_tickle_fd(wdfd, wddev) < 0)) {
	close(wdfd);
	return -1;
	}
	} else {
	cl_perror("Cannot open watchdog device '%s'", wddev);
	return -1;
	}
	return wdfd;
	}

	int
	watchdog_init(void)
	{
	if (watchdogfd < 0 && watchdogdev != NULL) {
	int timeout = timeout_watchdog;

	if (watchdog_set_timeout == 0) {
	cl_log(LOG_INFO, "NOT setting watchdog timeout on explicit user request!");
	timeout = -1;
	}
	watchdogfd = watchdog_init_fd(watchdogdev, timeout);
	if (watchdogfd >= 0) {
	cl_log(LOG_NOTICE, "Using watchdog device '%s'", watchdogdev);
	if (watchdog_set_timeout) {
	cl_log(LOG_INFO, "Set watchdog timeout to %u seconds.", (int) timeout_watchdog);
	}
	} else {
	return -1;
	}
	}
	return 0;
	}

	static void
	watchdog_close_fd(int wdfd, char *wddev, bool disarm)
	{
	if (disarm) {
	int r;
	int flags = WDIOS_DISABLECARD;;

	/* Explicitly disarm it */
	r = ioctl(wdfd, WDIOC_SETOPTIONS, &flags);
	if (r < 0) {
	cl_perror("Failed to disable hardware watchdog %s", wddev);
	}

	/* To be sure, use magic close logic, too */
	for (;;) {
	if (write(wdfd, "V", 1) > 0) {
	break;
	}
	cl_perror("Cannot disable watchdog device %s", wddev);
	}
	}

	if (close(wdfd) < 0) {
	cl_perror("Watchdog close(%d) failed", wdfd);
	}
	}

	void
	watchdog_close(bool disarm)
	{
	if (watchdogfd < 0) {
	return;
	}

	watchdog_close_fd(watchdogfd, watchdogdev, disarm);
	watchdogfd = -1;
	}

	#define MAX_WATCHDOGS 64
	#define SYS_CLASS_WATCHDOG "/sys/class/watchdog"
	#define SYS_CHAR_DEV_DIR "/sys/dev/char"
	#define WATCHDOG_NODEDIR "/dev"

	struct watchdog_list_item {
	dev_t dev;
	char *dev_node;
	char *dev_ident;
	char *dev_driver;
	struct watchdog_list_item *next;
	};

	static struct watchdog_list_item *watchdog_list = NULL;
	static int watchdog_list_items = 0;

	static void
	watchdog_populate_list(void)
	{
	dev_t watchdogs[MAX_WATCHDOGS + 1] =
	{makedev(10,130), 0};
	int num_watchdogs = 1;
	struct dirent *entry;
	char entry_name[280];
	DIR *dp;
	char buf[256] = "";

	if (watchdog_list != NULL) {
	return;
	}

	/* get additional devices from /sys/class/watchdog */
	dp = opendir(SYS_CLASS_WATCHDOG);
	if (dp) {
	while ((entry = readdir(dp))) {
	if (entry->d_type == DT_LNK) {
	FILE *file;

	snprintf(entry_name, sizeof(entry_name),
	SYS_CLASS_WATCHDOG "/%s/dev", entry->d_name);
	file = fopen(entry_name, "r");
	if (file) {
	int major, minor;

	if (fscanf(file, "%d:%d", &major, &minor) == 2) {
	watchdogs[num_watchdogs++] = makedev(major, minor);
	}
	fclose(file);
	if (num_watchdogs == MAX_WATCHDOGS) {
	break;
	}
	}
	}
	}
	closedir(dp);
	}

	/* search for watchdog nodes in /dev */
	dp = opendir(WATCHDOG_NODEDIR);
	if (dp) {
	while ((entry = readdir(dp))) {
	if ((entry->d_type == DT_CHR) \|\| (entry->d_type == DT_LNK)) {
	struct stat statbuf;

	snprintf(entry_name, sizeof(entry_name),
	WATCHDOG_NODEDIR "/%s", entry->d_name);
	if(!stat(entry_name, &statbuf) && S_ISCHR(statbuf.st_mode)) {
	int i;

	for (i=0; i<num_watchdogs; i++) {
	if (statbuf.st_rdev == watchdogs[i]) {
	int wdfd = watchdog_init_fd(entry_name, -1);
	struct watchdog_list_item *wdg =
	calloc(1, sizeof(struct watchdog_list_item));

	wdg->dev = watchdogs[i];
	wdg->dev_node = strdup(entry_name);
	wdg->next = watchdog_list;
	watchdog_list = wdg;
	watchdog_list_items++;

	if (wdfd >= 0) {
	struct watchdog_info ident;

	ident.identity[0] = '\0';
	ioctl(wdfd, WDIOC_GETSUPPORT, &ident);
	watchdog_close_fd(wdfd, entry_name, true);
	if (ident.identity[0]) {
	wdg->dev_ident = strdup((char *) ident.identity);
	}
	}

	snprintf(entry_name, sizeof(entry_name),
	SYS_CHAR_DEV_DIR "/%d:%d/device/driver",
	major(watchdogs[i]), minor(watchdogs[i]));
	if (readlink(entry_name, buf, sizeof(buf)) > 0) {
	wdg->dev_driver = strdup(basename(buf));
	} else if ((wdg->dev_ident) &&
	(strcmp(wdg->dev_ident,
	"Software Watchdog") == 0)) {
	wdg->dev_driver = strdup("softdog");
	}
	break;
	}
	}
	}
	}
	}
	closedir(dp);
	}
	}

	int watchdog_info(void)
	{
	struct watchdog_list_item *wdg;
	int wdg_cnt = 0;

	watchdog_populate_list();
	printf("\nDiscovered %d watchdog devices:\n", watchdog_list_items);
	for (wdg = watchdog_list; wdg != NULL; wdg = wdg->next) {
	wdg_cnt++;
	printf("\n[%d] %s\nIdentity: %s\nDriver: %s\n",
	wdg_cnt, wdg->dev_node,
	wdg->dev_ident?wdg->dev_ident:"Error: Check if hogged by e.g. sbd-daemon!",
	wdg->dev_driver?wdg->dev_driver:"<unknown>");
	if ((wdg->dev_driver) && (strcmp(wdg->dev_driver, "softdog") == 0)) {
	printf("CAUTION: Not recommended for use with sbd.\n");
	}
	}

	return 0;
	}

	int watchdog_test(void)
	{
	int i;

	if ((watchdog_set_timeout == 0) \|\| !watchdog_use) {
	printf("\nWatchdog is disabled - aborting test!!!\n");
	return 0;
	}
	if (watchdogdev_is_default) {
	watchdog_populate_list();
	if (watchdog_list_items > 1) {
	printf("\nError: Multiple watchdog devices discovered.\n"
	" Use -w <watchdog> or SBD_WATCHDOG_DEV to specify\n"
	" which device to reset the system with\n");
	watchdog_info();
	return -1;
	}
	}
	if ((isatty(fileno(stdin)))) {
	char buffer[16];
	printf("\nWARNING: This operation is expected to force-reboot this system\n"
	" without following any shutdown procedures.\n\n"
	"Proceed? [NO/Proceed] ");

	if ((fgets(buffer, 16, stdin) == NULL) \|\|
	strcmp(buffer, "Proceed\n")) {
	printf("\nAborting watchdog test!!!\n");
	return 0;
	}
	printf("\n");
	}
	printf("Initializing %s with a reset countdown of %d seconds ...\n",
	watchdogdev, (int) timeout_watchdog);
	if ((watchdog_init() < 0) \|\| (watchdog_init_interval() < 0)) {
	printf("Failed to initialize watchdog!!!\n");
	return -1;
	}
	printf("\n");
	printf("NOTICE: The watchdog device is expected to reset the system\n"
	" in %d seconds. If system remains active beyond that time,\n"
	" watchdog may not be functional.\n\n", (int) timeout_watchdog);
	for (i=timeout_watchdog; i>1; i--) {
	printf("Reset countdown ... %d seconds\n", i);
	sleep(1);
	}
	for (i=2; i>0; i--) {
	printf("System expected to reset any moment ...\n");
	sleep(1);
	}
	for (i=5; i>0; i--) {
	printf("System should have reset ...\n");
	sleep(1);
	}
	printf("Error: The watchdog device has failed to reboot the system,\n"
	" and it may not be suitable for usage with sbd.\n");

	/* test should trigger a reboot thus returning is actually bad */
	return -1;
	}

	/* This duplicates some code from linux/ioprio.h since these are not included
	* even in linux-kernel-headers. Sucks. See also
	* /usr/src/linux/Documentation/block/ioprio.txt and ioprio_set(2) */
	extern int sys_ioprio_set(int, int, int);
	int ioprio_set(int which, int who, int ioprio);
	inline int ioprio_set(int which, int who, int ioprio)
	{
	return syscall(__NR_ioprio_set, which, who, ioprio);
	}

	enum {
	IOPRIO_CLASS_NONE,
	IOPRIO_CLASS_RT,
	IOPRIO_CLASS_BE,
	IOPRIO_CLASS_IDLE,
	};

	enum {
	IOPRIO_WHO_PROCESS = 1,
	IOPRIO_WHO_PGRP,
	IOPRIO_WHO_USER,
	};

	#define IOPRIO_BITS (16)
	#define IOPRIO_CLASS_SHIFT (13)
	#define IOPRIO_PRIO_MASK ((1UL << IOPRIO_CLASS_SHIFT) - 1)

	#define IOPRIO_PRIO_CLASS(mask) ((mask) >> IOPRIO_CLASS_SHIFT)
	#define IOPRIO_PRIO_DATA(mask) ((mask) & IOPRIO_PRIO_MASK)
	#define IOPRIO_PRIO_VALUE(class, data) (((class) << IOPRIO_CLASS_SHIFT) \| data)

	static unsigned char
	sbd_stack_hogger(unsigned char * inbuf, int kbytes)
	{
	unsigned char buf[1024];

	if(kbytes <= 0) {
	return HOG_CHAR;
	}

	if (inbuf == NULL) {
	memset(buf, HOG_CHAR, sizeof(buf));
	} else {
	memcpy(buf, inbuf, sizeof(buf));
	}

	if (kbytes > 0) {
	return sbd_stack_hogger(buf, kbytes-1);
	} else {
	return buf[sizeof(buf)-1];
	}
	}

	static void
	sbd_malloc_hogger(int kbytes)
	{
	int j;
	void**chunks;
	int chunksize = 1024;

	if(kbytes <= 0) {
	return;
	}

	/*
	* We could call mallopt(M_MMAP_MAX, 0) to disable it completely,
	* but we've already called mlockall()
	*
	* We could also call mallopt(M_TRIM_THRESHOLD, -1) to prevent malloc
	* from giving memory back to the system, but we've already called
	* mlockall(MCL_FUTURE), so there's no need.
	*/

	chunks = malloc(kbytes * sizeof(void *));
	if (chunks == NULL) {
	cl_log(LOG_WARNING, "Could not preallocate chunk array");
	return;
	}

	for (j=0; j < kbytes; ++j) {
	chunks[j] = malloc(chunksize);
	if (chunks[j] == NULL) {
	cl_log(LOG_WARNING, "Could not preallocate block %d", j);

	} else {
	memset(chunks[j], 0, chunksize);
	}
	}

	for (j=0; j < kbytes; ++j) {
	free(chunks[j]);
	}

	free(chunks);
	}

	static void sbd_memlock(int stackgrowK, int heapgrowK)
	{

	#ifdef _POSIX_MEMLOCK
	/*
	* We could call setrlimit(RLIMIT_MEMLOCK,...) with a large
	* number, but the mcp runs as root and mlock(2) says:
	*
	* Since Linux 2.6.9, no limits are placed on the amount of memory
	* that a privileged process may lock, and this limit instead
	* governs the amount of memory that an unprivileged process may
	* lock.
	*/
	if (mlockall(MCL_CURRENT\|MCL_FUTURE) >= 0) {
	cl_log(LOG_INFO, "Locked ourselves in memory");

	/* Now allocate some extra pages (MCL_FUTURE will ensure they stay around) */
	sbd_malloc_hogger(heapgrowK);
	sbd_stack_hogger(NULL, stackgrowK);

	} else {
	cl_perror("Unable to lock ourselves into memory");
	}

	#else
	cl_log(LOG_ERR, "Unable to lock ourselves into memory");
	#endif
	}

	void
	sbd_make_realtime(int priority, int stackgrowK, int heapgrowK)
	{
	if(priority < 0) {
	return;
	}

	#ifdef SCHED_RR
	{
	int pcurrent = 0;
	int pmin = sched_get_priority_min(SCHED_RR);
	int pmax = sched_get_priority_max(SCHED_RR);

	if (priority == 0) {
	priority = pmax;
	} else if (priority < pmin) {
	priority = pmin;
	} else if (priority > pmax) {
	priority = pmax;
	}

	pcurrent = sched_getscheduler(0);
	if (pcurrent < 0) {
	cl_perror("Unable to get scheduler priority");

	} else if(pcurrent < priority) {
	struct sched_param sp;

	memset(&sp, 0, sizeof(sp));
	sp.sched_priority = priority;

	if (sched_setscheduler(0, SCHED_RR, &sp) < 0) {
	cl_perror("Unable to set scheduler priority to %d", priority);
	} else {
	cl_log(LOG_INFO, "Scheduler priority is now %d", priority);
	}
	}
	}
	#else
	cl_log(LOG_ERR, "System does not support updating the scheduler priority");
	#endif

	sbd_memlock(heapgrowK, stackgrowK);
	}

	void
	maximize_priority(void)
	{
	if (skip_rt) {
	cl_log(LOG_INFO, "Not elevating to realtime (-R specified).");
	return;
	}

	sbd_make_realtime(0, 256, 256);

	if (ioprio_set(IOPRIO_WHO_PROCESS, getpid(),
	IOPRIO_PRIO_VALUE(IOPRIO_CLASS_RT, 1)) != 0) {
	cl_perror("ioprio_set() call failed.");
	}
	}

	void
	sysrq_init(void)
	{
	FILE* procf;
	int c;
	procf = fopen("/proc/sys/kernel/sysrq", "r");
	if (!procf) {
	cl_perror("cannot open /proc/sys/kernel/sysrq for read.");
	return;
	}
	if (fscanf(procf, "%d", &c) != 1) {
	cl_perror("Parsing sysrq failed");
	c = 0;
	}
	fclose(procf);
	if (c == 1)
	return;
	/* 8 for debugging dumps of processes,
	128 for reboot/poweroff */
	c \|= 136;
	procf = fopen("/proc/sys/kernel/sysrq", "w");
	if (!procf) {
	cl_perror("cannot open /proc/sys/kernel/sysrq for writing");
	return;
	}
	fprintf(procf, "%d", c);
	fclose(procf);
	return;
	}

	void
	sysrq_trigger(char t)
	{
	FILE *procf;

	procf = fopen("/proc/sysrq-trigger", "a");
	if (!procf) {
	cl_perror("Opening sysrq-trigger failed.");
	return;
	}
	cl_log(LOG_INFO, "sysrq-trigger: %c\n", t);
	fprintf(procf, "%c\n", t);
	fclose(procf);
	return;
	}


	static void
	do_exit(char kind)
	{
	/* TODO: Turn debug_mode into a bit field? Delay + kdump for example */
	const char *reason = NULL;

	if (kind == 'c') {
	cl_log(LOG_NOTICE, "Initiating kdump");

	} else if (debug_mode == 1) {
	cl_log(LOG_WARNING, "Initiating kdump instead of panicing the node (debug mode)");
	kind = 'c';
	}

	if (debug_mode == 2) {
	cl_log(LOG_WARNING, "Shutting down SBD instead of panicing the node (debug mode)");
	watchdog_close(true);
	exit(0);
	}

	if (debug_mode == 3) {
	/* Give the system some time to flush logs to disk before rebooting. */
	cl_log(LOG_WARNING, "Delaying node panic by 10s (debug mode)");

	watchdog_close(true);
	sync();

	sleep(10);
	}

	switch(kind) {
	case 'b':
	reason = "reboot";
	break;
	case 'c':
	reason = "crashdump";
	break;
	case 'o':
	reason = "off";
	break;
	default:
	reason = "unknown";
	break;
	}

	cl_log(LOG_EMERG, "Rebooting system: %s", reason);
	sync();

	if(kind == 'c') {
	watchdog_close(true);
	sysrq_trigger(kind);

	} else {
	watchdog_close(false);
	sysrq_trigger(kind);
	if (reboot((kind == 'o')?RB_POWER_OFF:RB_AUTOBOOT) < 0) {
	cl_perror("%s failed", (kind == 'o')?"Poweroff":"Reboot");
	}
	}

	exit(1);
	}

	void
	do_crashdump(void)
	{
	do_exit('c');
	}

	void
	do_reset(void)
	{
	do_exit('b');
	}

	void
	do_off(void)
	{
	do_exit('o');
	}

	/*
	* Change directory to the directory our core file needs to go in
	* Call after you establish the userid you're running under.
	*/
	int
	sbd_cdtocoredir(void)
	{
	int rc;
	static const char *dir = NULL;

	if (dir == NULL) {
	dir = CRM_CORE_DIR;
	}
	if ((rc=chdir(dir)) < 0) {
	int errsave = errno;
	cl_perror("Cannot chdir to [%s]", dir);
	errno = errsave;
	}
	return rc;
	}

	pid_t
	make_daemon(void)
	{
	pid_t pid;
	const char * devnull = "/dev/null";

	pid = fork();
	if (pid < 0) {
	cl_log(LOG_ERR, "%s: could not start daemon\n",
	cmdname);
	cl_perror("fork");
	exit(1);
	}else if (pid > 0) {
	return pid;
	}

	qb_log_ctl(QB_LOG_STDERR, QB_LOG_CONF_ENABLED, QB_FALSE);

	/* This is the child; ensure privileges have not been lost. */
	maximize_priority();
	sysrq_init();

	umask(022);
	close(0);
	(void)open(devnull, O_RDONLY);
	close(1);
	(void)open(devnull, O_WRONLY);
	close(2);
	(void)open(devnull, O_WRONLY);
	sbd_cdtocoredir();
	return 0;
	}

	void
	sbd_get_uname(void)
	{
	struct utsname uname_buf;
	int i;

	if (uname(&uname_buf) < 0) {
	cl_perror("uname() failed?");
	exit(1);
	}

	local_uname = strdup(uname_buf.nodename);

	for (i = 0; i < strlen(local_uname); i++)
	local_uname[i] = tolower(local_uname[i]);
	}


	#define FMT_MAX 256
	void
	sbd_set_format_string(int method, const char *daemon)
	{
	int offset = 0;
	char fmt[FMT_MAX];
	struct utsname res;

	switch(method) {
	case QB_LOG_STDERR:
	break;

	case QB_LOG_SYSLOG:
	if(daemon && strcmp(daemon, "sbd") != 0) {
	offset += snprintf(fmt + offset, FMT_MAX - offset, "%10s: ", daemon);
	}
	break;

	default:
	/* When logging to a file */
	if (uname(&res) == 0) {
	offset +=
	snprintf(fmt + offset, FMT_MAX - offset, "%%t [%d] %s %10s: ", getpid(),
	res.nodename, daemon);
	} else {
	offset += snprintf(fmt + offset, FMT_MAX - offset, "%%t [%d] %10s: ", getpid(), daemon);
	}
	}

	if (debug && method >= QB_LOG_STDERR) {
	offset += snprintf(fmt + offset, FMT_MAX - offset, "(%%-12f:%%5l %%g) %%-7p: %%n: ");
	} else {
	offset += snprintf(fmt + offset, FMT_MAX - offset, "%%g %%-7p: %%n: ");
	}

	if (method == QB_LOG_SYSLOG) {
	offset += snprintf(fmt + offset, FMT_MAX - offset, "%%b");
	} else {
	offset += snprintf(fmt + offset, FMT_MAX - offset, "\t%%b");
	}

	if(offset > 0) {
	qb_log_format_set(method, fmt);
	}
	}

	void
	notify_parent(void)
	{
	pid_t ppid;
	union sigval signal_value;

	memset(&signal_value, 0, sizeof(signal_value));
	ppid = getppid();

	if (ppid == 1) {
	/* Our parent died unexpectedly. Triggering
	* self-fence. */
	cl_log(LOG_WARNING, "Our parent is dead.");
	do_reset();
	}

	switch (servant_health) {
	case pcmk_health_pending:
	case pcmk_health_shutdown:
	case pcmk_health_transient:
	- DBGLOG(LOG_INFO, "Not notifying parent: state transient (%d)", servant_health);
	+ DBGLOG(LOG_DEBUG, "Not notifying parent: state transient (%d)", servant_health);
	break;

	case pcmk_health_unknown:
	case pcmk_health_unclean:
	case pcmk_health_noquorum:
	DBGLOG(LOG_WARNING, "Notifying parent: UNHEALTHY (%d)", servant_health);
	sigqueue(ppid, SIG_PCMK_UNHEALTHY, signal_value);
	break;

	case pcmk_health_online:
	- DBGLOG(LOG_INFO, "Notifying parent: healthy");
	+ DBGLOG(LOG_DEBUG, "Notifying parent: healthy");
	sigqueue(ppid, SIG_LIVENESS, signal_value);
	break;

	default:
	DBGLOG(LOG_WARNING, "Notifying parent: UNHEALTHY %d", servant_health);
	sigqueue(ppid, SIG_PCMK_UNHEALTHY, signal_value);
	break;
	}
	}

	void
	set_servant_health(enum pcmk_health state, int level, char const *format, ...)
	{
	if (servant_health != state) {
	va_list ap;
	int len = 0;
	char *string = NULL;

	servant_health = state;

	va_start(ap, format);
	len = vasprintf (&string, format, ap);

	if(len > 0) {
	cl_log(level, "%s", string);
	}

	va_end(ap);
	free(string);
	}
	}

	bool
	sbd_is_disk(struct servants_list_item *servant)
	{
	if ((servant != NULL) &&
	(servant->devname != NULL) &&
	(servant->devname[0] == '/')) {
	return true;
	}
	return false;
	}

	bool
	sbd_is_cluster(struct servants_list_item *servant)
	{
	if ((servant != NULL) &&
	(servant->devname != NULL) &&
	(strcmp("cluster", servant->devname) == 0)) {
	return true;
	}
	return false;
	}

	bool
	sbd_is_pcmk(struct servants_list_item *servant)
	{
	if ((servant != NULL) &&
	(servant->devname != NULL) &&
	(strcmp("pcmk", servant->devname) == 0)) {
	return true;
	}
	return false;
	}
	diff --git a/src/sbd-inquisitor.c b/src/sbd-inquisitor.c
	index 237bf43..90c7d26 100644
	--- a/src/sbd-inquisitor.c
	+++ b/src/sbd-inquisitor.c
	@@ -1,1164 +1,1164 @@
	/*
	* 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 <pacemaker/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 disk_count = 0;
	int servant_count = 0;
	int servant_restart_interval = 5;
	int servant_restart_count = 1;
	int start_mode = 0;
	char* pidfile = NULL;

	int parse_device_line(const char *line);

	void 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;
	}

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

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

	servant_count++;
	if(sbd_is_disk(newbie)) {
	- cl_log(LOG_NOTICE, "Monitoring %s", devname);
	+ cl_log(LOG_INFO, "Monitoring %s", devname);
	disk_count++;
	} else {
	newbie->outdated = 1;
	}
	}

	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, 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_IO_FAIL:
	DBGLOG(LOG_INFO, "Servant for %s requests to be disowned",
	s->devname);
	break;
	case EXIT_MD_REQUEST_RESET:
	cl_log(LOG_WARNING, "%s requested a reset", s->devname);
	do_reset();
	break;
	case EXIT_MD_REQUEST_SHUTOFF:
	cl_log(LOG_WARNING, "%s requested a shutoff", s->devname);
	do_off();
	break;
	case EXIT_MD_REQUEST_CRASHDUMP:
	cl_log(LOG_WARNING, "%s requested a crashdump", s->devname);
	do_crashdump();
	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_NOTICE, "Active cluster detected");
	+ 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_NOTICE, "Partial cluster detected, detaching");
	+ 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_reset();
	} 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 %d s exceeds threshold of %d s (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_reset();
	}
	}

	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)
	{
	int lpc = 0;
	int last = 0;
	int max = 0;
	int found = 0;

	if(line) {
	max = strlen(line);
	}

	if (max <= 0) {
	return found;
	}

	cl_log(LOG_DEBUG, "Processing %d bytes: [%s]", max, line);
	/* Skip initial whitespace */
	for (lpc = 0; lpc <= max && isspace(line[lpc]); lpc++) {
	last = lpc + 1;
	}

	/* Now the actual content */
	for (lpc = 0; lpc <= max; lpc++) {
	int a_space = isspace(line[lpc]);

	if (a_space && lpc < max && isspace(line[lpc + 1])) {
	/* fast-forward to the end of the spaces */

	} else if (a_space \|\| line[lpc] == ';' \|\| line[lpc] == 0) {
	int rc = 1;
	char *entry = NULL;

	if (lpc > last) {
	entry = calloc(1, 1 + lpc - last);
	rc = sscanf(line + last, "%[^;]", entry);
	}

	if (entry == NULL) {
	/* Skip */
	} else if (rc != 1) {
	cl_log(LOG_WARNING, "Could not parse (%d %d): %s", last, lpc, line + last);
	} else {
	cl_log(LOG_DEBUG, "Adding '%s'", entry);
	recruit_servant(entry, 0);
	found++;
	}

	free(entry);
	last = lpc + 1;
	}
	}
	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;
	int start_delay = 0;

	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 = getenv("SBD_DEVICE");
	if(value) {
	#if SUPPORT_SHARED_DISK
	int devices = parse_device_line(value);
	if(devices < 1) {
	fprintf(stderr, "Invalid device line: %s\n", value);
	exit_status = -2;
	goto out;
	}
	#else
	fprintf(stderr, "Shared disk functionality not supported\n");
	exit_status = -2;
	goto out;
	#endif
	}

	value = getenv("SBD_PACEMAKER");
	if(value) {
	check_pcmk = crm_is_true(value);
	check_cluster = crm_is_true(value);
	}
	cl_log(LOG_INFO, "Enable pacemaker checks: %d (%s)", (int)check_pcmk, value?value:"default");

	value = getenv("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 = getenv("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 = getenv("SBD_WATCHDOG");
	if(value) {
	watchdog_use = crm_is_true(value);
	}

	value = getenv("SBD_WATCHDOG_TIMEOUT");
	if(value) {
	timeout_watchdog = crm_get_msec(value) / 1000;
	if(timeout_watchdog > 5) {
	timeout_watchdog_warn = (int)timeout_watchdog / 5 * 3;
	}
	}

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

	value = getenv("SBD_DELAY_START");
	if(value) {
	start_delay = crm_is_true(value);
	}
	cl_log(LOG_DEBUG, "Start delay: %d (%s)", (int)start_delay, value?value:"default");

	while ((c = getopt(argc, argv, "czC:DPRTWZhvw:d:n:p:1:2:3:4:5:t:I:F:S:s:")) != -1) {
	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 = atoi(optarg);
	cl_log(LOG_INFO, "Start mode set to: %d", (int)start_mode);
	break;
	case 's':
	timeout_startup = atoi(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':
	cl_log(LOG_NOTICE, "Using watchdog device '%s'", watchdogdev);
	free(watchdogdev);
	watchdogdev = strdup(optarg);
	watchdogdev_is_default = false;
	break;
	case 'd':
	#if SUPPORT_SHARED_DISK
	recruit_servant(optarg, 0);
	#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(optarg);
	cl_log(LOG_INFO, "Overriding local hostname to %s", local_uname);
	break;
	case 'p':
	pidfile = strdup(optarg);
	cl_log(LOG_INFO, "pidfile set to %s", pidfile);
	break;
	case 'C':
	timeout_watchdog_crashdump = atoi(optarg);
	cl_log(LOG_INFO, "Setting crashdump watchdog timeout to %d",
	(int)timeout_watchdog_crashdump);
	break;
	case '1':
	timeout_watchdog = atoi(optarg);
	if(timeout_watchdog > 5) {
	timeout_watchdog_warn = (int)timeout_watchdog / 5 * 3;
	}
	break;
	case '2':
	timeout_allocate = atoi(optarg);
	break;
	case '3':
	timeout_loop = atoi(optarg);
	break;
	case '4':
	timeout_msgwait = atoi(optarg);
	break;
	case '5':
	timeout_watchdog_warn = atoi(optarg);
	cl_log(LOG_INFO, "Setting latency warning to %d",
	(int)timeout_watchdog_warn);
	break;
	case 't':
	servant_restart_interval = atoi(optarg);
	cl_log(LOG_INFO, "Setting servant restart interval to %d",
	(int)servant_restart_interval);
	break;
	case 'I':
	timeout_io = atoi(optarg);
	cl_log(LOG_INFO, "Setting IO timeout to %d",
	(int)timeout_io);
	break;
	case 'F':
	servant_restart_count = atoi(optarg);
	cl_log(LOG_INFO, "Servant restart count set to %d",
	(int)servant_restart_count);
	break;
	case 'h':
	usage();
	return (0);
	default:
	exit_status = -2;
	goto out;
	break;
	}
	}

	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) {
	check_pcmk = arg_enabled(P_count);
	}

	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 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 if (strcmp(argv[optind], "watch") == 0) {
	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(start_delay) {
	unsigned long delay = get_first_msgwait(servants_leader);

	sleep(delay);
	}

	} else {
	exit_status = -2;
	}
	#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 */

	/* 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);
	}

	exit_status = inquisitor();
	}

	out:
	if (exit_status < 0) {
	if (exit_status == -2) {
	usage();
	} else {
	fprintf(stderr, "sbd failed; please check the logs.\n");
	}
	return (1);
	}
	return (0);
	}
	diff --git a/src/sbd-md.c b/src/sbd-md.c
	index 6a964dd..6f152c4 100644
	--- a/src/sbd-md.c
	+++ b/src/sbd-md.c
	@@ -1,1235 +1,1235 @@
	/*
	* 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 "sbd.h"

	#define SBD_MSG_EMPTY 0x00
	#define SBD_MSG_TEST 0x01
	#define SBD_MSG_RESET 0x02
	#define SBD_MSG_OFF 0x03
	#define SBD_MSG_EXIT 0x04
	#define SBD_MSG_CRASHDUMP 0x05

	#define SLOT_TO_SECTOR(slot) (1+slot*2)
	#define MBOX_TO_SECTOR(mbox) (2+mbox*2)

	extern int disk_count;

	/* These have to match the values in the header of the partition */
	static char sbd_magic[8] = "SBD_SBD_";
	static char sbd_version = 0x02;

	struct slot_msg_arg_t {
	const char* name;
	const char* msg;
	};

	static signed char
	cmd2char(const char *cmd)
	{
	if (strcmp("clear", cmd) == 0) {
	return SBD_MSG_EMPTY;
	} else if (strcmp("test", cmd) == 0) {
	return SBD_MSG_TEST;
	} else if (strcmp("reset", cmd) == 0) {
	return SBD_MSG_RESET;
	} else if (strcmp("off", cmd) == 0) {
	return SBD_MSG_OFF;
	} else if (strcmp("exit", cmd) == 0) {
	return SBD_MSG_EXIT;
	} else if (strcmp("crashdump", cmd) == 0) {
	return SBD_MSG_CRASHDUMP;
	}
	return -1;
	}

	static const char*
	char2cmd(const char cmd)
	{
	switch (cmd) {
	case SBD_MSG_EMPTY:
	return "clear";
	break;
	case SBD_MSG_TEST:
	return "test";
	break;
	case SBD_MSG_RESET:
	return "reset";
	break;
	case SBD_MSG_OFF:
	return "off";
	break;
	case SBD_MSG_EXIT:
	return "exit";
	break;
	case SBD_MSG_CRASHDUMP:
	return "crashdump";
	break;
	default:
	return "undefined";
	break;
	}
	}

	static void
	close_device(struct sbd_context *st)
	{
	close(st->devfd);
	free(st);
	}

	static struct sbd_context *
	open_device(const char* devname, int loglevel)
	{
	struct sbd_context *st;

	if (!devname)
	return NULL;

	st = malloc(sizeof(struct sbd_context));
	if (!st)
	return NULL;
	memset(st, 0, sizeof(struct sbd_context));

	if (io_setup(1, &st->ioctx) != 0) {
	cl_perror("io_setup failed");
	free(st);
	return NULL;
	}

	st->devfd = open(devname, O_SYNC\|O_RDWR\|O_DIRECT);

	if (st->devfd == -1) {
	if (loglevel == LOG_DEBUG) {
	DBGLOG(loglevel, "Opening device %s failed.", devname);
	} else {
	cl_log(loglevel, "Opening device %s failed.", devname);
	}
	free(st);
	return NULL;
	}

	ioctl(st->devfd, BLKSSZGET, &sector_size);

	if (sector_size == 0) {
	cl_perror("Get sector size failed.\n");
	close_device(st);
	return NULL;
	}

	return st;
	}

	static void *
	sector_alloc(void)
	{
	void *x;

	x = valloc(sector_size);
	if (!x) {
	exit(1);
	}
	memset(x, 0, sector_size);

	return x;
	}

	static int
	sector_io(struct sbd_context st, int sector, void data, int rw)
	{
	struct timespec timeout;
	struct io_event event;
	struct iocb *ios[1] = { &st->io };
	long r;

	timeout.tv_sec = timeout_io;
	timeout.tv_nsec = 0;

	memset(&st->io, 0, sizeof(struct iocb));
	if (rw) {
	io_prep_pwrite(&st->io, st->devfd, data, sector_size, sector_size * sector);
	} else {
	io_prep_pread(&st->io, st->devfd, data, sector_size, sector_size * sector);
	}

	if (io_submit(st->ioctx, 1, ios) != 1) {
	cl_log(LOG_ERR, "Failed to submit IO request! (rw=%d)", rw);
	return -1;
	}

	errno = 0;
	r = io_getevents(st->ioctx, 1L, 1L, &event, &timeout);

	if (r < 0 ) {
	cl_log(LOG_ERR, "Failed to retrieve IO events (rw=%d)", rw);
	return -1;
	} else if (r < 1L) {
	cl_log(LOG_INFO, "Cancelling IO request due to timeout (rw=%d)", rw);
	r = io_cancel(st->ioctx, ios[0], &event);
	if (r) {
	DBGLOG(LOG_INFO, "Could not cancel IO request (rw=%d)", rw);
	/* Doesn't really matter, debugging information.
	*/
	}
	return -1;
	} else if (r > 1L) {
	cl_log(LOG_ERR, "More than one IO was returned (r=%ld)", r);
	return -1;
	}


	/* IO is happy */
	if (event.res == sector_size) {
	return 0;
	} else {
	cl_log(LOG_ERR, "Short IO (rw=%d, res=%lu, sector_size=%d)",
	rw, event.res, sector_size);
	return -1;
	}
	}

	static int
	sector_write(struct sbd_context st, int sector, void data)
	{
	return sector_io(st, sector, data, 1);
	}

	static int
	sector_read(struct sbd_context st, int sector, void data)
	{
	return sector_io(st, sector, data, 0);
	}

	static int
	slot_read(struct sbd_context st, int slot, struct sector_node_s s_node)
	{
	return sector_read(st, SLOT_TO_SECTOR(slot), s_node);
	}

	static int
	slot_write(struct sbd_context st, int slot, struct sector_node_s s_node)
	{
	return sector_write(st, SLOT_TO_SECTOR(slot), s_node);
	}

	static int
	mbox_write(struct sbd_context st, int mbox, struct sector_mbox_s s_mbox)
	{
	return sector_write(st, MBOX_TO_SECTOR(mbox), s_mbox);
	}

	static int
	mbox_read(struct sbd_context st, int mbox, struct sector_mbox_s s_mbox)
	{
	return sector_read(st, MBOX_TO_SECTOR(mbox), s_mbox);
	}

	static int
	mbox_write_verify(struct sbd_context st, int mbox, struct sector_mbox_s s_mbox)
	{
	void *data;
	int rc = 0;

	if (sector_write(st, MBOX_TO_SECTOR(mbox), s_mbox) < 0)
	return -1;

	data = sector_alloc();
	if (sector_read(st, MBOX_TO_SECTOR(mbox), data) < 0) {
	rc = -1;
	goto out;
	}


	if (memcmp(s_mbox, data, sector_size) != 0) {
	cl_log(LOG_ERR, "Write verification failed!");
	rc = -1;
	goto out;
	}
	rc = 0;
	out:
	free(data);
	return rc;
	}

	static int header_write(struct sbd_context st, struct sector_header_s s_header)
	{
	s_header->sector_size = htonl(s_header->sector_size);
	s_header->timeout_watchdog = htonl(s_header->timeout_watchdog);
	s_header->timeout_allocate = htonl(s_header->timeout_allocate);
	s_header->timeout_loop = htonl(s_header->timeout_loop);
	s_header->timeout_msgwait = htonl(s_header->timeout_msgwait);
	return sector_write(st, 0, s_header);
	}

	static int
	header_read(struct sbd_context st, struct sector_header_s s_header)
	{
	if (sector_read(st, 0, s_header) < 0)
	return -1;

	s_header->sector_size = ntohl(s_header->sector_size);
	s_header->timeout_watchdog = ntohl(s_header->timeout_watchdog);
	s_header->timeout_allocate = ntohl(s_header->timeout_allocate);
	s_header->timeout_loop = ntohl(s_header->timeout_loop);
	s_header->timeout_msgwait = ntohl(s_header->timeout_msgwait);
	/* This sets the global defaults: */
	timeout_watchdog = s_header->timeout_watchdog;
	timeout_allocate = s_header->timeout_allocate;
	timeout_loop = s_header->timeout_loop;
	timeout_msgwait = s_header->timeout_msgwait;

	return 0;
	}

	static int
	valid_header(const struct sector_header_s *s_header)
	{
	if (memcmp(s_header->magic, sbd_magic, sizeof(s_header->magic)) != 0) {
	cl_log(LOG_ERR, "Header magic does not match.");
	return -1;
	}
	if (s_header->version != sbd_version) {
	cl_log(LOG_ERR, "Header version does not match.");
	return -1;
	}
	if (s_header->sector_size != sector_size) {
	cl_log(LOG_ERR, "Header sector size does not match.");
	return -1;
	}
	return 0;
	}

	static struct sector_header_s *
	header_get(struct sbd_context *st)
	{
	struct sector_header_s *s_header;
	s_header = sector_alloc();

	if (header_read(st, s_header) < 0) {
	cl_log(LOG_ERR, "Unable to read header from device %d", st->devfd);
	return NULL;
	}

	if (valid_header(s_header) < 0) {
	cl_log(LOG_ERR, "header on device %d is not valid.", st->devfd);
	return NULL;
	}

	/* cl_log(LOG_INFO, "Found version %d header with %d slots",
	s_header->version, s_header->slots); */

	return s_header;
	}

	static int
	header_dump(struct sbd_context *st)
	{
	struct sector_header_s *s_header;
	char uuid[37];

	s_header = header_get(st);
	if (s_header == NULL)
	return -1;

	printf("Header version : %u.%u\n", s_header->version,
	s_header->minor_version);
	if (s_header->minor_version > 0) {
	uuid_unparse_lower(s_header->uuid, uuid);
	printf("UUID : %s\n", uuid);
	}

	printf("Number of slots : %u\n", s_header->slots);
	printf("Sector size : %lu\n",
	(unsigned long)s_header->sector_size);
	printf("Timeout (watchdog) : %lu\n",
	(unsigned long)s_header->timeout_watchdog);
	printf("Timeout (allocate) : %lu\n",
	(unsigned long)s_header->timeout_allocate);
	printf("Timeout (loop) : %lu\n",
	(unsigned long)s_header->timeout_loop);
	printf("Timeout (msgwait) : %lu\n",
	(unsigned long)s_header->timeout_msgwait);
	return 0;
	}

	static int
	init_device(struct sbd_context *st)
	{
	struct sector_header_s *s_header;
	struct sector_node_s *s_node;
	struct sector_mbox_s *s_mbox;
	struct stat s;
	char uuid[37];
	int i;
	int rc = 0;

	s_header = sector_alloc();
	s_node = sector_alloc();
	s_mbox = sector_alloc();
	memcpy(s_header->magic, sbd_magic, sizeof(s_header->magic));
	s_header->version = sbd_version;
	s_header->slots = 255;
	s_header->sector_size = sector_size;
	s_header->timeout_watchdog = timeout_watchdog;
	s_header->timeout_allocate = timeout_allocate;
	s_header->timeout_loop = timeout_loop;
	s_header->timeout_msgwait = timeout_msgwait;

	s_header->minor_version = 1;
	uuid_generate(s_header->uuid);
	uuid_unparse_lower(s_header->uuid, uuid);

	fstat(st->devfd, &s);
	/* printf("st_size = %ld, st_blksize = %ld, st_blocks = %ld\n",
	s.st_size, s.st_blksize, s.st_blocks); */

	cl_log(LOG_INFO, "Creating version %d.%d header on device %d (uuid: %s)",
	s_header->version, s_header->minor_version,
	st->devfd, uuid);
	fprintf(stdout, "Creating version %d.%d header on device %d (uuid: %s)\n",
	s_header->version, s_header->minor_version,
	st->devfd, uuid);
	if (header_write(st, s_header) < 0) {
	rc = -1; goto out;
	}
	cl_log(LOG_INFO, "Initializing %d slots on device %d",
	s_header->slots,
	st->devfd);
	fprintf(stdout, "Initializing %d slots on device %d\n",
	s_header->slots,
	st->devfd);
	for (i=0;i < s_header->slots;i++) {
	if (slot_write(st, i, s_node) < 0) {
	rc = -1; goto out;
	}
	if (mbox_write(st, i, s_mbox) < 0) {
	rc = -1; goto out;
	}
	}

	out: free(s_node);
	free(s_header);
	free(s_mbox);
	return(rc);
	}

	/* Check if there already is a slot allocated to said name; returns the
	* slot number. If not found, returns -1.
	* This is necessary because slots might not be continuous. */
	static int
	slot_lookup(struct sbd_context st, const struct sector_header_s s_header, const char *name)
	{
	struct sector_node_s *s_node = NULL;
	int i;
	int rc = -1;

	if (!name) {
	cl_log(LOG_ERR, "slot_lookup(): No name specified.\n");
	goto out;
	}

	s_node = sector_alloc();

	for (i=0; i < s_header->slots; i++) {
	if (slot_read(st, i, s_node) < 0) {
	rc = -2; goto out;
	}
	if (s_node->in_use != 0) {
	if (strncasecmp(s_node->name, name,
	SECTOR_NAME_MAX) == 0) {
	DBGLOG(LOG_INFO, "%s owns slot %d", name, i);
	rc = i; goto out;
	}
	}
	}

	out: free(s_node);
	return rc;
	}

	static int
	slot_unused(struct sbd_context st, const struct sector_header_s s_header)
	{
	struct sector_node_s *s_node;
	int i;
	int rc = -1;

	s_node = sector_alloc();

	for (i=0; i < s_header->slots; i++) {
	if (slot_read(st, i, s_node) < 0) {
	rc = -1; goto out;
	}
	if (s_node->in_use == 0) {
	rc = i; goto out;
	}
	}

	out: free(s_node);
	return rc;
	}


	static int
	slot_allocate(struct sbd_context st, const char name)
	{
	struct sector_header_s *s_header = NULL;
	struct sector_node_s *s_node = NULL;
	struct sector_mbox_s *s_mbox = NULL;
	int i;
	int rc = 0;

	if (!name) {
	cl_log(LOG_ERR, "slot_allocate(): No name specified.\n");
	fprintf(stderr, "slot_allocate(): No name specified.\n");
	rc = -1; goto out;
	}

	s_header = header_get(st);
	if (!s_header) {
	rc = -1; goto out;
	}

	s_node = sector_alloc();
	s_mbox = sector_alloc();

	while (1) {
	i = slot_lookup(st, s_header, name);
	if ((i >= 0) \|\| (i == -2)) {
	/* -1 is "no slot found", in which case we
	* proceed to allocate a new one.
	* -2 is "read error during lookup", in which
	* case we error out too
	* >= 0 is "slot already allocated" */
	rc = i; goto out;
	}

	i = slot_unused(st, s_header);
	if (i >= 0) {
	cl_log(LOG_INFO, "slot %d is unused - trying to own", i);
	fprintf(stdout, "slot %d is unused - trying to own\n", i);
	memset(s_node, 0, sizeof(*s_node));
	s_node->in_use = 1;
	strncpy(s_node->name, name, SECTOR_NAME_MAX);
	if (slot_write(st, i, s_node) < 0) {
	rc = -1; goto out;
	}
	sleep(timeout_allocate);
	} else {
	cl_log(LOG_ERR, "No more free slots.");
	fprintf(stderr, "No more free slots.\n");
	rc = -1; goto out;
	}
	}

	out: free(s_node);
	free(s_header);
	free(s_mbox);
	return(rc);
	}

	static int
	slot_list(struct sbd_context *st)
	{
	struct sector_header_s *s_header = NULL;
	struct sector_node_s *s_node = NULL;
	struct sector_mbox_s *s_mbox = NULL;
	int i;
	int rc = 0;

	s_header = header_get(st);
	if (!s_header) {
	rc = -1; goto out;
	}

	s_node = sector_alloc();
	s_mbox = sector_alloc();

	for (i=0; i < s_header->slots; i++) {
	if (slot_read(st, i, s_node) < 0) {
	rc = -1; goto out;
	}
	if (s_node->in_use > 0) {
	if (mbox_read(st, i, s_mbox) < 0) {
	rc = -1; goto out;
	}
	printf("%d\t%s\t%s\t%s\n",
	i, s_node->name, char2cmd(s_mbox->cmd),
	s_mbox->from);
	}
	}

	out: free(s_node);
	free(s_header);
	free(s_mbox);
	return rc;
	}

	static int
	slot_msg(struct sbd_context st, const char name, const char *cmd)
	{
	struct sector_header_s *s_header = NULL;
	struct sector_mbox_s *s_mbox = NULL;
	int mbox;
	int rc = 0;
	char uuid[37];

	if (!name \|\| !cmd) {
	cl_log(LOG_ERR, "slot_msg(): No recipient / cmd specified.\n");
	rc = -1; goto out;
	}

	s_header = header_get(st);
	if (!s_header) {
	rc = -1; goto out;
	}

	if (strcmp(name, "LOCAL") == 0) {
	name = local_uname;
	}

	if (s_header->minor_version > 0) {
	uuid_unparse_lower(s_header->uuid, uuid);
	cl_log(LOG_INFO, "Device UUID: %s", uuid);
	}

	mbox = slot_lookup(st, s_header, name);
	if (mbox < 0) {
	cl_log(LOG_ERR, "slot_msg(): No slot found for %s.", name);
	rc = -1; goto out;
	}

	s_mbox = sector_alloc();

	s_mbox->cmd = cmd2char(cmd);
	if (s_mbox->cmd < 0) {
	cl_log(LOG_ERR, "slot_msg(): Invalid command %s.", cmd);
	rc = -1; goto out;
	}

	strncpy(s_mbox->from, local_uname, SECTOR_NAME_MAX);

	cl_log(LOG_INFO, "Writing %s to node slot %s",
	cmd, name);
	if (mbox_write_verify(st, mbox, s_mbox) < -1) {
	rc = -1; goto out;
	}
	if (strcasecmp(cmd, "exit") != 0) {
	cl_log(LOG_INFO, "Messaging delay: %d",
	(int)timeout_msgwait);
	sleep(timeout_msgwait);
	}
	cl_log(LOG_INFO, "%s successfully delivered to %s",
	cmd, name);

	out: free(s_mbox);
	free(s_header);
	return rc;
	}

	static int
	slot_ping(struct sbd_context st, const char name)
	{
	struct sector_header_s *s_header = NULL;
	struct sector_mbox_s *s_mbox = NULL;
	int mbox;
	int waited = 0;
	int rc = 0;

	if (!name) {
	cl_log(LOG_ERR, "slot_ping(): No recipient specified.\n");
	rc = -1; goto out;
	}

	s_header = header_get(st);
	if (!s_header) {
	rc = -1; goto out;
	}

	if (strcmp(name, "LOCAL") == 0) {
	name = local_uname;
	}

	mbox = slot_lookup(st, s_header, name);
	if (mbox < 0) {
	cl_log(LOG_ERR, "slot_msg(): No slot found for %s.", name);
	rc = -1; goto out;
	}

	s_mbox = sector_alloc();
	s_mbox->cmd = SBD_MSG_TEST;

	strncpy(s_mbox->from, local_uname, SECTOR_NAME_MAX);

	DBGLOG(LOG_DEBUG, "Pinging node %s", name);
	if (mbox_write(st, mbox, s_mbox) < -1) {
	rc = -1; goto out;
	}

	rc = -1;
	while (waited <= timeout_msgwait) {
	if (mbox_read(st, mbox, s_mbox) < 0)
	break;
	if (s_mbox->cmd != SBD_MSG_TEST) {
	rc = 0;
	break;
	}
	sleep(1);
	waited++;
	}

	if (rc == 0) {
	cl_log(LOG_DEBUG, "%s successfully pinged.", name);
	} else {
	cl_log(LOG_ERR, "%s failed to ping.", name);
	}

	out: free(s_mbox);
	free(s_header);
	return rc;
	}

	int init_devices(struct servants_list_item *servants)
	{
	int rc = 0;
	struct sbd_context *st;
	struct servants_list_item *s;

	for (s = servants; s; s = s->next) {
	fprintf(stdout, "Initializing device %s\n",
	s->devname);
	st = open_device(s->devname, LOG_ERR);
	if (!st) {
	return -1;
	}
	rc = init_device(st);
	close_device(st);
	if (rc == -1) {
	fprintf(stderr, "Failed to init device %s\n", s->devname);
	return rc;
	}
	fprintf(stdout, "Device %s is initialized.\n", s->devname);
	}
	return 0;
	}

	static int slot_msg_wrapper(const char* devname, int mode, const void* argp)
	{
	int rc = 0;
	struct sbd_context *st;
	const struct slot_msg_arg_t* arg = (const struct slot_msg_arg_t*)argp;

	st = open_device(devname, LOG_WARNING);
	if (!st)
	return -1;
	cl_log(LOG_INFO, "Delivery process handling %s",
	devname);
	rc = slot_msg(st, arg->name, arg->msg);
	close_device(st);
	return rc;
	}

	static int slot_ping_wrapper(const char* devname, int mode, const void* argp)
	{
	int rc = 0;
	const char* name = (const char*)argp;
	struct sbd_context *st;

	st = open_device(devname, LOG_WARNING);
	if (!st)
	return -1;
	rc = slot_ping(st, name);
	close_device(st);
	return rc;
	}

	int allocate_slots(const char name, struct servants_list_item servants)
	{
	int rc = 0;
	struct sbd_context *st;
	struct servants_list_item *s;

	for (s = servants; s; s = s->next) {
	fprintf(stdout, "Trying to allocate slot for %s on device %s.\n",
	name,
	s->devname);
	st = open_device(s->devname, LOG_WARNING);
	if (!st) {
	return -1;
	}
	rc = slot_allocate(st, name);
	close_device(st);
	if (rc < 0)
	return rc;
	fprintf(stdout, "Slot for %s has been allocated on %s.\n",
	name,
	s->devname);
	}
	return 0;
	}

	int list_slots(struct servants_list_item *servants)
	{
	int rc = 0;
	struct servants_list_item *s;
	struct sbd_context *st;

	for (s = servants; s; s = s->next) {
	st = open_device(s->devname, LOG_WARNING);
	if (!st) {
	fprintf(stdout, "== disk %s unreadable!\n", s->devname);
	continue;
	}
	rc = slot_list(st);
	close_device(st);
	if (rc == -1) {
	fprintf(stdout, "== Slots on disk %s NOT dumped\n", s->devname);
	}
	}
	return 0;
	}

	int ping_via_slots(const char name, struct servants_list_item servants)
	{
	int sig = 0;
	pid_t pid = 0;
	int status = 0;
	int servants_finished = 0;
	sigset_t procmask;
	siginfo_t sinfo;
	struct servants_list_item *s;

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

	for (s = servants; s; s = s->next) {
	if(sbd_is_disk(s)) {
	s->pid = assign_servant(s->devname, &slot_ping_wrapper, 0, (const void*)name);
	}
	}

	while (servants_finished < disk_count) {
	sig = sigwaitinfo(&procmask, &sinfo);
	if (sig == SIGCHLD) {
	while ((pid = wait(&status))) {
	if (pid == -1 && errno == ECHILD) {
	break;
	} else {
	s = lookup_servant_by_pid(pid);
	if (sbd_is_disk(s)) {
	servants_finished++;
	}
	}
	}
	}
	}
	return 0;
	}

	int quorum_write(int good_servants)
	{
	return (good_servants > disk_count/2);
	}

	int messenger(const char name, const char msg, struct servants_list_item *servants)
	{
	int sig = 0;
	pid_t pid = 0;
	int status = 0;
	int servants_finished = 0;
	int successful_delivery = 0;
	sigset_t procmask;
	siginfo_t sinfo;
	struct servants_list_item *s;
	struct slot_msg_arg_t slot_msg_arg = {name, msg};

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

	for (s = servants; s; s = s->next) {
	s->pid = assign_servant(s->devname, &slot_msg_wrapper, 0, &slot_msg_arg);
	}

	while (!(quorum_write(successful_delivery) \|\|
	(servants_finished == disk_count))) {
	sig = sigwaitinfo(&procmask, &sinfo);
	if (sig == SIGCHLD) {
	while ((pid = waitpid(-1, &status, WNOHANG))) {
	if (pid == -1 && errno == ECHILD) {
	break;
	} else {
	servants_finished++;
	if (WIFEXITED(status)
	&& WEXITSTATUS(status) == 0) {
	DBGLOG(LOG_INFO, "Process %d succeeded.",
	(int)pid);
	successful_delivery++;
	} else {
	cl_log(LOG_WARNING, "Process %d failed to deliver!",
	(int)pid);
	}
	}
	}
	}
	}
	if (quorum_write(successful_delivery)) {
	cl_log(LOG_INFO, "Message successfully delivered.");
	return 0;
	} else {
	cl_log(LOG_ERR, "Message is not delivered via more then a half of devices");
	return -1;
	}
	}

	unsigned long
	get_first_msgwait(struct servants_list_item *servants)
	{
	unsigned long msgwait = 0;
	struct servants_list_item *s = servants;

	for (s = servants; s; s = s->next) {
	struct sbd_context *st;
	struct sector_header_s *s_header;
	st = open_device(s->devname, LOG_WARNING);
	if (!st) {
	continue;
	}

	s_header = header_get(st);
	if (s_header != NULL) {
	msgwait = (unsigned long)s_header->timeout_msgwait;
	close_device(st);
	return msgwait;
	}

	close_device(st);
	}
	return msgwait;
	}

	int dump_headers(struct servants_list_item *servants)
	{
	int rc = 0;
	struct servants_list_item *s = servants;
	struct sbd_context *st;

	for (s = servants; s; s = s->next) {
	int rv;

	fprintf(stdout, "==Dumping header on disk %s\n", s->devname);
	st = open_device(s->devname, LOG_WARNING);
	if (st) {
	rv = header_dump(st);
	close_device(st);
	} else {
	fprintf(stdout, "== disk %s unreadable!\n", s->devname);
	rv = -1;
	}

	if (rv == -1) {
	rc = -1;
	fprintf(stdout, "==Header on disk %s NOT dumped\n", s->devname);
	} else {
	fprintf(stdout, "==Header on disk %s is dumped\n", s->devname);
	}
	}
	return rc;
	}

	void open_any_device(struct servants_list_item *servants)
	{
	struct sector_header_s *hdr_cur = NULL;
	struct timespec t_0;
	int t_wait = 0;

	clock_gettime(CLOCK_MONOTONIC, &t_0);

	while (!hdr_cur && t_wait < timeout_startup) {
	struct timespec t_now;
	struct servants_list_item* s;

	for (s = servants; s; s = s->next) {
	struct sbd_context *st = open_device(s->devname, LOG_DEBUG);
	if (!st)
	continue;
	hdr_cur = header_get(st);
	close_device(st);
	if (hdr_cur)
	break;
	}
	clock_gettime(CLOCK_MONOTONIC, &t_now);
	t_wait = t_now.tv_sec - t_0.tv_sec;
	if (!hdr_cur) {
	sleep(timeout_loop);
	}
	}

	if (hdr_cur) {
	timeout_watchdog = hdr_cur->timeout_watchdog;
	timeout_allocate = hdr_cur->timeout_allocate;
	timeout_loop = hdr_cur->timeout_loop;
	timeout_msgwait = hdr_cur->timeout_msgwait;
	} else {
	cl_log(LOG_ERR, "No devices were available at start-up within %i seconds.",
	timeout_startup);
	exit(1);
	}

	free(hdr_cur);
	return;
	}

	/*
	::-::-::-::-::-::-::-::-::-::-::-::-::
	Begin disk based servant code
	::-::-::-::-::-::-::-::-::-::-::-::-::
	*/

	static int servant_check_timeout_inconsistent(struct sector_header_s *hdr)
	{
	if (timeout_watchdog != hdr->timeout_watchdog) {
	cl_log(LOG_WARNING, "watchdog timeout: %d versus %d on this device",
	(int)timeout_watchdog, (int)hdr->timeout_watchdog);
	return -1;
	}
	if (timeout_allocate != hdr->timeout_allocate) {
	cl_log(LOG_WARNING, "allocate timeout: %d versus %d on this device",
	(int)timeout_allocate, (int)hdr->timeout_allocate);
	return -1;
	}
	if (timeout_loop != hdr->timeout_loop) {
	cl_log(LOG_WARNING, "loop timeout: %d versus %d on this device",
	(int)timeout_loop, (int)hdr->timeout_loop);
	return -1;
	}
	if (timeout_msgwait != hdr->timeout_msgwait) {
	cl_log(LOG_WARNING, "msgwait timeout: %d versus %d on this device",
	(int)timeout_msgwait, (int)hdr->timeout_msgwait);
	return -1;
	}
	return 0;
	}

	int servant(const char diskname, int mode, const void argp)
	{
	struct sector_mbox_s *s_mbox = NULL;
	struct sector_node_s *s_node = NULL;
	struct sector_header_s *s_header = NULL;
	int mbox;
	int rc = 0;
	time_t t0, t1, latency;
	union sigval signal_value;
	sigset_t servant_masks;
	struct sbd_context *st;
	pid_t ppid;
	char uuid[37];
	const struct servants_list_item *s = argp;

	if (!diskname) {
	cl_log(LOG_ERR, "Empty disk name %s.", diskname);
	return -1;
	}

	cl_log(LOG_INFO, "Servant starting for device %s", diskname);

	/* Block most of the signals */
	sigfillset(&servant_masks);
	sigdelset(&servant_masks, SIGKILL);
	sigdelset(&servant_masks, SIGFPE);
	sigdelset(&servant_masks, SIGILL);
	sigdelset(&servant_masks, SIGSEGV);
	sigdelset(&servant_masks, SIGBUS);
	sigdelset(&servant_masks, SIGALRM);
	/* FIXME: check error */
	sigprocmask(SIG_SETMASK, &servant_masks, NULL);

	st = open_device(diskname, LOG_WARNING);
	if (!st) {
	exit(EXIT_MD_IO_FAIL);
	}

	s_header = header_get(st);
	if (!s_header) {
	cl_log(LOG_ERR, "Not a valid header on %s", diskname);
	exit(EXIT_MD_IO_FAIL);
	}

	if (servant_check_timeout_inconsistent(s_header) < 0) {
	cl_log(LOG_ERR, "Timeouts on %s do not match first device",
	diskname);
	exit(EXIT_MD_IO_FAIL);
	}

	if (s_header->minor_version > 0) {
	uuid_unparse_lower(s_header->uuid, uuid);
	cl_log(LOG_INFO, "Device %s uuid: %s", diskname, uuid);
	}

	mbox = slot_allocate(st, local_uname);
	if (mbox < 0) {
	cl_log(LOG_ERR,
	"No slot allocated, and automatic allocation failed for disk %s.",
	diskname);
	rc = EXIT_MD_IO_FAIL;
	goto out;
	}
	s_node = sector_alloc();
	if (slot_read(st, mbox, s_node) < 0) {
	cl_log(LOG_ERR, "Unable to read node entry on %s",
	diskname);
	exit(EXIT_MD_IO_FAIL);
	}

	- DBGLOG(LOG_INFO, "Monitoring slot %d on disk %s", mbox, diskname);
	+ cl_log(LOG_NOTICE, "Monitoring slot %d on disk %s", mbox, diskname);
	if (s_header->minor_version == 0) {
	set_proc_title("sbd: watcher: %s - slot: %d", diskname, mbox);
	} else {
	set_proc_title("sbd: watcher: %s - slot: %d - uuid: %s",
	diskname, mbox, uuid);
	}

	s_mbox = sector_alloc();
	if (s->first_start) {
	if (mode > 0) {
	if (mbox_read(st, mbox, s_mbox) < 0) {
	cl_log(LOG_ERR, "mbox read failed during start-up in servant.");
	rc = EXIT_MD_IO_FAIL;
	goto out;
	}
	if (s_mbox->cmd != SBD_MSG_EXIT &&
	s_mbox->cmd != SBD_MSG_EMPTY) {
	/* Not a clean stop. Abort start-up */
	cl_log(LOG_WARNING, "Found fencing message - aborting start-up. Manual intervention required!");
	ppid = getppid();
	sigqueue(ppid, SIG_EXITREQ, signal_value);
	rc = 0;
	goto out;
	}
	}
	DBGLOG(LOG_INFO, "First servant start - zeroing inbox");
	memset(s_mbox, 0, sizeof(*s_mbox));
	if (mbox_write(st, mbox, s_mbox) < 0) {
	rc = EXIT_MD_IO_FAIL;
	goto out;
	}
	}

	memset(&signal_value, 0, sizeof(signal_value));

	while (1) {
	struct sector_header_s *s_header_retry = NULL;
	struct sector_node_s *s_node_retry = NULL;

	t0 = time(NULL);
	sleep(timeout_loop);

	ppid = getppid();

	if (ppid == 1) {
	/* Our parent died unexpectedly. Triggering
	* self-fence. */
	do_reset();
	}

	/* These attempts are, by definition, somewhat racy. If
	* the device is wiped out or corrupted between here and
	* us reading our mbox, there is nothing we can do about
	* that. But at least we tried. */
	s_header_retry = header_get(st);
	if (!s_header_retry) {
	cl_log(LOG_ERR, "No longer found a valid header on %s", diskname);
	exit(EXIT_MD_IO_FAIL);
	}
	if (memcmp(s_header, s_header_retry, sizeof(*s_header)) != 0) {
	cl_log(LOG_ERR, "Header on %s changed since start-up!", diskname);
	exit(EXIT_MD_IO_FAIL);
	}
	free(s_header_retry);

	s_node_retry = sector_alloc();
	if (slot_read(st, mbox, s_node_retry) < 0) {
	cl_log(LOG_ERR, "slot read failed in servant.");
	exit(EXIT_MD_IO_FAIL);
	}
	if (memcmp(s_node, s_node_retry, sizeof(*s_node)) != 0) {
	cl_log(LOG_ERR, "Node entry on %s changed since start-up!", diskname);
	exit(EXIT_MD_IO_FAIL);
	}
	free(s_node_retry);

	if (mbox_read(st, mbox, s_mbox) < 0) {
	cl_log(LOG_ERR, "mbox read failed in servant.");
	exit(EXIT_MD_IO_FAIL);
	}

	if (s_mbox->cmd > 0) {
	- cl_log(LOG_INFO,
	+ cl_log(LOG_NOTICE,
	"Received command %s from %s on disk %s",
	char2cmd(s_mbox->cmd), s_mbox->from, diskname);

	switch (s_mbox->cmd) {
	case SBD_MSG_TEST:
	memset(s_mbox, 0, sizeof(*s_mbox));
	mbox_write(st, mbox, s_mbox);
	sigqueue(ppid, SIG_TEST, signal_value);
	break;
	case SBD_MSG_RESET:
	exit(EXIT_MD_REQUEST_RESET);
	case SBD_MSG_OFF:
	exit(EXIT_MD_REQUEST_SHUTOFF);
	case SBD_MSG_EXIT:
	sigqueue(ppid, SIG_EXITREQ, signal_value);
	break;
	case SBD_MSG_CRASHDUMP:
	exit(EXIT_MD_REQUEST_CRASHDUMP);
	default:
	/* FIXME:
	An "unknown" message might result
	from a partial write.
	log it and clear the slot.
	*/
	cl_log(LOG_ERR, "Unknown message on disk %s",
	diskname);
	memset(s_mbox, 0, sizeof(*s_mbox));
	mbox_write(st, mbox, s_mbox);
	break;
	}
	}
	sigqueue(ppid, SIG_LIVENESS, signal_value);

	t1 = time(NULL);
	latency = t1 - t0;
	if (timeout_watchdog_warn && (latency > timeout_watchdog_warn)) {
	cl_log(LOG_WARNING,
	"Latency: %d exceeded threshold %d on disk %s",
	(int)latency, (int)timeout_watchdog_warn,
	diskname);
	} else if (debug) {
	- DBGLOG(LOG_INFO, "Latency: %d on disk %s", (int)latency,
	+ DBGLOG(LOG_DEBUG, "Latency: %d on disk %s", (int)latency,
	diskname);
	}
	}
	out:
	free(s_mbox);
	close_device(st);
	exit(rc);
	}


	diff --git a/src/sbd-pacemaker.c b/src/sbd-pacemaker.c
	index 2f06109..a435d01 100644
	--- a/src/sbd-pacemaker.c
	+++ b/src/sbd-pacemaker.c
	@@ -1,457 +1,457 @@
	/*
	* Copyright (C) 2013 Lars Marowsky-Bree <lmb@suse.com>
	*
	* Based on crm_mon.c, which was:
	* 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 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.
	*/

	/* TODO list:
	*
	* - Trying to shutdown a node if no devices are up will fail, since SBD
	* currently uses a message via the disk to achieve this.
	*
	* - Shutting down cluster nodes while the majority of devices is down
	* will eventually take the cluster below the quorum threshold, at which
	* time the remaining cluster nodes will all immediately suicide.
	*
	*/

	#include <sys/param.h>

	#include <crm/crm.h>

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

	#include <stdlib.h>
	#include <errno.h>
	#include <fcntl.h>
	#include <libgen.h>
	#include <sys/utsname.h>

	#include <config.h>

	#include <crm_config.h>
	#include <crm/msg_xml.h>
	#include <crm/common/util.h>
	#include <crm/common/xml.h>
	#include <crm/common/ipc.h>
	#include <crm/common/mainloop.h>
	#include <crm/cib.h>
	#include <crm/pengine/status.h>

	#include "sbd.h"

	extern int disk_count;

	static void clean_up(int rc);
	static void crm_diff_update(const char event, xmlNode msg);
	static int cib_connect(gboolean full);
	static void compute_status(pe_working_set_t * data_set);
	static gboolean mon_refresh_state(gpointer user_data);

	static GMainLoop *mainloop = NULL;
	static guint timer_id_reconnect = 0;
	static guint timer_id_notify = 0;
	static int reconnect_msec = 1000;
	static int cib_connected = 0;

	static cib_t *cib = NULL;
	static xmlNode *current_cib = NULL;

	static long last_refresh = 0;

	static gboolean
	mon_timer_reconnect(gpointer data)
	{
	int rc = 0;

	if (timer_id_reconnect > 0) {
	g_source_remove(timer_id_reconnect);
	}

	rc = cib_connect(TRUE);
	if (rc != 0) {
	cl_log(LOG_WARNING, "CIB reconnect failed: %d", rc);
	timer_id_reconnect = g_timeout_add(reconnect_msec, mon_timer_reconnect, NULL);
	} else {
	cl_log(LOG_INFO, "CIB reconnect successful");
	}

	return FALSE;
	}

	static void
	mon_cib_connection_destroy(gpointer user_data)
	{
	if (cib) {
	cib->cmds->signoff(cib);
	set_servant_health(pcmk_health_transient, LOG_WARNING, "Disconnected from CIB");
	timer_id_reconnect = g_timeout_add(reconnect_msec, mon_timer_reconnect, NULL);
	}
	cib_connected = 0;
	return;
	}

	static void
	mon_retrieve_current_cib()
	{
	xmlNode *xml_cib = NULL;
	int options = cib_scope_local \| cib_sync_call;
	int rc = pcmk_ok;

	free_xml(current_cib);
	current_cib = NULL;

	rc = cib->cmds->query(cib, NULL, &xml_cib, options);

	if (rc != pcmk_ok) {
	crm_err("Couldn't retrieve the CIB: %s (%d)", pcmk_strerror(rc), rc);
	free_xml(xml_cib);
	return;

	} else if (xml_cib == NULL) {
	crm_err("Couldn't retrieve the CIB: empty result");
	return;
	}

	if (safe_str_eq(crm_element_name(xml_cib), XML_TAG_CIB)) {
	current_cib = xml_cib;

	} else {
	free_xml(xml_cib);
	}

	return;
	}

	static gboolean
	mon_timer_notify(gpointer data)
	{
	static int counter = 0;
	int counter_max = timeout_watchdog / timeout_loop;

	if (timer_id_notify > 0) {
	g_source_remove(timer_id_notify);
	}

	if (cib_connected) {
	if (counter == counter_max) {
	mon_retrieve_current_cib();
	mon_refresh_state(NULL);
	counter = 0;
	} else {
	cib->cmds->noop(cib, 0);
	notify_parent();
	counter++;
	}
	}
	timer_id_notify = g_timeout_add(timeout_loop * 1000, mon_timer_notify, NULL);
	return FALSE;
	}

	/*
	* Mainloop signal handler.
	*/
	static void
	mon_shutdown(int nsig)
	{
	clean_up(0);
	}

	static int
	cib_connect(gboolean full)
	{
	int rc = 0;

	CRM_CHECK(cib != NULL, return -EINVAL);

	cib_connected = 0;

	crm_xml_init();

	if (cib->state != cib_connected_query && cib->state != cib_connected_command) {

	rc = cib->cmds->signon(cib, crm_system_name, cib_query);

	if (rc != 0) {
	return rc;
	}

	mon_retrieve_current_cib();
	mon_refresh_state(NULL);

	if (full) {
	if (rc == 0) {
	rc = cib->cmds->set_connection_dnotify(cib, mon_cib_connection_destroy);
	if (rc == -EPROTONOSUPPORT) {
	/* Notification setup failed, won't be able to reconnect after failure */
	rc = 0;
	}
	}

	if (rc == 0) {
	cib->cmds->del_notify_callback(cib, T_CIB_DIFF_NOTIFY, crm_diff_update);
	rc = cib->cmds->add_notify_callback(cib, T_CIB_DIFF_NOTIFY, crm_diff_update);
	}

	if (rc != 0) {
	/* Notification setup failed, could not monitor CIB actions */
	clean_up(-rc);
	}
	}
	}

	if (!rc) {
	cib_connected = 1;
	}
	return rc;
	}


	static void
	compute_status(pe_working_set_t * data_set)
	{
	static int updates = 0;
	static int ever_had_quorum = FALSE;

	node_t *node = pe_find_node(data_set->nodes, local_uname);

	updates++;

	if (data_set->dc_node == NULL) {
	set_servant_health(pcmk_health_transient, LOG_INFO, "We don't have a DC right now.");
	notify_parent();
	return;
	}


	if (node == NULL) {
	set_servant_health(pcmk_health_unknown, LOG_WARNING, "Node state: %s is UNKNOWN", local_uname);

	} else if (node->details->online == FALSE) {
	set_servant_health(pcmk_health_unknown, LOG_WARNING, "Node state: OFFLINE");

	} else if (node->details->unclean) {
	set_servant_health(pcmk_health_unclean, LOG_WARNING, "Node state: UNCLEAN");

	} else if (node->details->pending) {
	set_servant_health(pcmk_health_pending, LOG_WARNING, "Node state: pending");

	#if 0
	} else if (node->details->shutdown) {
	set_servant_health(pcmk_health_shutdown, LOG_WARNING, "Node state: shutting down");
	#endif

	} else if (data_set->flags & pe_flag_have_quorum) {
	set_servant_health(pcmk_health_online, LOG_INFO, "Node state: online");
	ever_had_quorum = TRUE;

	} else if(disk_count > 0) {
	set_servant_health(pcmk_health_noquorum, LOG_WARNING, "Quorum lost");

	} else if(ever_had_quorum == FALSE) {
	set_servant_health(pcmk_health_online, LOG_INFO, "We do not have quorum yet");

	} else {
	/* We lost quorum, and there are no disks present
	* Setting healthy > 2 here will result in us self-fencing
	*/
	switch (data_set->no_quorum_policy) {
	case no_quorum_freeze:
	set_servant_health(pcmk_health_transient, LOG_INFO, "Quorum lost: Freeze resources");
	break;
	case no_quorum_stop:
	set_servant_health(pcmk_health_transient, LOG_INFO, "Quorum lost: Stop ALL resources");
	break;
	case no_quorum_ignore:
	set_servant_health(pcmk_health_transient, LOG_INFO, "Quorum lost: Ignore");
	break;
	case no_quorum_suicide:
	set_servant_health(pcmk_health_unclean, LOG_INFO, "Quorum lost: Self-fence");
	break;
	}
	}

	notify_parent();
	return;
	}

	static crm_trigger_t *refresh_trigger = NULL;

	static gboolean
	mon_trigger_refresh(gpointer user_data)
	{
	mainloop_set_trigger(refresh_trigger);
	mon_refresh_state(NULL);
	return FALSE;
	}

	static void
	crm_diff_update(const char event, xmlNode msg)
	{
	int rc = -1;
	const char *op = NULL;
	long now = time(NULL);
	static int updates = 0;
	static mainloop_timer_t *refresh_timer = NULL;

	if(refresh_timer == NULL) {
	refresh_timer = mainloop_timer_add("refresh", 2000, FALSE, mon_trigger_refresh, NULL);
	refresh_trigger = mainloop_add_trigger(G_PRIORITY_LOW, mon_refresh_state, refresh_timer);
	}

	if (current_cib != NULL) {
	xmlNode *cib_last = current_cib;
	current_cib = NULL;

	rc = cib_apply_patch_event(msg, cib_last, &current_cib, LOG_DEBUG);
	free_xml(cib_last);

	switch(rc) {
	case -pcmk_err_diff_resync:
	case -pcmk_err_diff_failed:
	crm_warn("[%s] %s Patch aborted: %s (%d)", event, op, pcmk_strerror(rc), rc);
	break;
	case pcmk_ok:
	updates++;
	break;
	default:
	crm_notice("[%s] %s ABORTED: %s (%d)", event, op, pcmk_strerror(rc), rc);
	break;
	}
	}

	if (current_cib == NULL) {
	mon_retrieve_current_cib();
	}

	/* Refresh
	* - immediately if the last update was more than 5s ago
	* - every 10 updates
	* - at most 2s after the last update
	*/
	if (updates > 10 \|\| (now - last_refresh) > (reconnect_msec / 1000)) {
	mon_refresh_state(refresh_timer);
	updates = 0;

	} else {
	mainloop_set_trigger(refresh_trigger);
	mainloop_timer_start(refresh_timer);
	}
	}

	static gboolean
	mon_refresh_state(gpointer user_data)
	{
	xmlNode *cib_copy = NULL;
	pe_working_set_t data_set;

	if(current_cib == NULL) {
	return FALSE;
	}

	if(user_data) {
	mainloop_timer_t *timer = user_data;

	mainloop_timer_stop(timer);
	}

	cib_copy = copy_xml(current_cib);
	if (cli_config_update(&cib_copy, NULL, FALSE) == FALSE) {
	cl_log(LOG_WARNING, "cli_config_update() failed - forcing reconnect to CIB");
	if (cib) {
	cib->cmds->signoff(cib);
	}

	} else {
	last_refresh = time(NULL);
	set_working_set_defaults(&data_set);
	data_set.input = cib_copy;
	data_set.flags \|= pe_flag_have_stonith_resource;
	cluster_status(&data_set);

	compute_status(&data_set);

	cleanup_calculations(&data_set);
	}

	return FALSE;
	}

	static void
	clean_up(int rc)
	{
	if (cib != NULL) {
	cib->cmds->signoff(cib);
	cib_delete(cib);
	cib = NULL;
	}

	if (rc >= 0) {
	exit(rc);
	}
	return;
	}

	int
	servant_pcmk(const char diskname, int mode, const void argp)
	{
	int exit_code = 0;

	crm_system_name = strdup("sbd:pcmk");
	- cl_log(LOG_INFO, "Monitoring Pacemaker health");
	+ cl_log(LOG_NOTICE, "Monitoring Pacemaker health");
	set_proc_title("sbd: watcher: Pacemaker");
	setenv("PCMK_watchdog", "true", 1);

	if(debug == 0) {
	/* We don't want any noisy crm messages */
	set_crm_log_level(LOG_CRIT);
	}

	if (current_cib == NULL) {
	cib = cib_new();

	do {
	exit_code = cib_connect(TRUE);

	if (exit_code != 0) {
	sleep(reconnect_msec / 1000);
	}
	} while (exit_code == -ENOTCONN);

	if (exit_code != 0) {
	clean_up(-exit_code);
	}
	}

	mainloop = g_main_new(FALSE);

	mainloop_add_signal(SIGTERM, mon_shutdown);
	mainloop_add_signal(SIGINT, mon_shutdown);
	timer_id_notify = g_timeout_add(timeout_loop * 1000, mon_timer_notify, NULL);

	g_main_run(mainloop);
	g_main_destroy(mainloop);

	clean_up(0);
	return 0; /* never reached */
	}

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