diff --git a/include/crm/common/internal.h b/include/crm/common/internal.h index a91a4bec50..a354f0cb32 100644 --- a/include/crm/common/internal.h +++ b/include/crm/common/internal.h @@ -1,359 +1,360 @@ /* * Copyright 2015-2024 the Pacemaker project contributors * * The version control history for this file may have further details. * * This source code is licensed under the GNU Lesser General Public License * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY. */ #ifndef PCMK__CRM_COMMON_INTERNAL__H #define PCMK__CRM_COMMON_INTERNAL__H #include // pid_t, getpid() #include // bool #include // uint8_t, uint64_t #include // guint, GList, GHashTable #include // xmlNode #include // do_crm_log_unlikely(), etc. #include // mainloop_io_t, struct ipc_client_callbacks #include // crm_strdup_printf() #include #include #include #include #include #include #include #include #include #include #include #ifdef __cplusplus extern "C" { #endif /* This says whether the current application is a Pacemaker daemon or not, * and is used to change default logging settings such as whether to log to * stderr, etc., as well as a few other details such as whether blackbox signal * handling is enabled. * * It is set when logging is initialized, and does not need to be set directly. */ extern bool pcmk__is_daemon; // Number of elements in a statically defined array #define PCMK__NELEM(a) ((int) (sizeof(a)/sizeof(a[0])) ) #if PCMK__ENABLE_CIBSECRETS /* internal CIB utilities (from cib_secrets.c) */ int pcmk__substitute_secrets(const char *rsc_id, GHashTable *params); #endif /* internal main loop utilities (from mainloop.c) */ int pcmk__add_mainloop_ipc(crm_ipc_t *ipc, int priority, void *userdata, const struct ipc_client_callbacks *callbacks, mainloop_io_t **source); guint pcmk__mainloop_timer_get_period(const mainloop_timer_t *timer); /* internal node-related XML utilities (from nodes.c) */ /*! * \internal * \brief Add local node name and ID to an XML node * * \param[in,out] request XML node to modify * \param[in] node The local node's name * \param[in] nodeid The local node's ID (can be 0) */ void pcmk__xe_add_node(xmlNode *xml, const char *node, int nodeid); /* internal name/value utilities (from nvpair.c) */ int pcmk__scan_nvpair(const char *input, char **name, char **value); char *pcmk__format_nvpair(const char *name, const char *value, const char *units); /* internal procfs utilities (from procfs.c) */ pid_t pcmk__procfs_pid_of(const char *name); unsigned int pcmk__procfs_num_cores(void); int pcmk__procfs_pid2path(pid_t pid, char path[], size_t path_size); bool pcmk__procfs_has_pids(void); +void pcmk__sysrq_trigger(char t); /* internal functions related to process IDs (from pid.c) */ /*! * \internal * \brief Check whether process exists (by PID and optionally executable path) * * \param[in] pid PID of process to check * \param[in] daemon If not NULL, path component to match with procfs entry * * \return Standard Pacemaker return code * \note Particular return codes of interest include pcmk_rc_ok for alive, * ESRCH for process is not alive (verified by kill and/or executable path * match), EACCES for caller unable or not allowed to check. A result of * "alive" is less reliable when \p daemon is not provided or procfs is * not available, since there is no guarantee that the PID has not been * recycled for another process. * \note This function cannot be used to verify \e authenticity of the process. */ int pcmk__pid_active(pid_t pid, const char *daemon); int pcmk__read_pidfile(const char *filename, pid_t *pid); int pcmk__pidfile_matches(const char *filename, pid_t expected_pid, const char *expected_name, pid_t *pid); int pcmk__lock_pidfile(const char *filename, const char *name); // bitwise arithmetic utilities /*! * \internal * \brief Set specified flags in a flag group * * \param[in] function Function name of caller * \param[in] line Line number of caller * \param[in] log_level Log a message at this level * \param[in] flag_type Label describing this flag group (for logging) * \param[in] target Name of object whose flags these are (for logging) * \param[in] flag_group Flag group being manipulated * \param[in] flags Which flags in the group should be set * \param[in] flags_str Readable equivalent of \p flags (for logging) * * \return Possibly modified flag group */ static inline uint64_t pcmk__set_flags_as(const char *function, int line, uint8_t log_level, const char *flag_type, const char *target, uint64_t flag_group, uint64_t flags, const char *flags_str) { uint64_t result = flag_group | flags; if (result != flag_group) { do_crm_log_unlikely(log_level, "%s flags %#.8llx (%s) for %s set by %s:%d", ((flag_type == NULL)? "Group of" : flag_type), (unsigned long long) flags, ((flags_str == NULL)? "flags" : flags_str), ((target == NULL)? "target" : target), function, line); } return result; } /*! * \internal * \brief Clear specified flags in a flag group * * \param[in] function Function name of caller * \param[in] line Line number of caller * \param[in] log_level Log a message at this level * \param[in] flag_type Label describing this flag group (for logging) * \param[in] target Name of object whose flags these are (for logging) * \param[in] flag_group Flag group being manipulated * \param[in] flags Which flags in the group should be cleared * \param[in] flags_str Readable equivalent of \p flags (for logging) * * \return Possibly modified flag group */ static inline uint64_t pcmk__clear_flags_as(const char *function, int line, uint8_t log_level, const char *flag_type, const char *target, uint64_t flag_group, uint64_t flags, const char *flags_str) { uint64_t result = flag_group & ~flags; if (result != flag_group) { do_crm_log_unlikely(log_level, "%s flags %#.8llx (%s) for %s cleared by %s:%d", ((flag_type == NULL)? "Group of" : flag_type), (unsigned long long) flags, ((flags_str == NULL)? "flags" : flags_str), ((target == NULL)? "target" : target), function, line); } return result; } /*! * \internal * \brief Get readable string for whether specified flags are set * * \param[in] flag_group Group of flags to check * \param[in] flags Which flags in \p flag_group should be checked * * \return "true" if all \p flags are set in \p flag_group, otherwise "false" */ static inline const char * pcmk__flag_text(uint64_t flag_group, uint64_t flags) { return pcmk__btoa(pcmk_all_flags_set(flag_group, flags)); } // miscellaneous utilities (from utils.c) void pcmk__daemonize(const char *name, const char *pidfile); void pcmk__panic(const char *reason); pid_t pcmk__locate_sbd(void); void pcmk__sleep_ms(unsigned int ms); guint pcmk__create_timer(guint interval_ms, GSourceFunc fn, gpointer data); guint pcmk__timeout_ms2s(guint timeout_ms); extern int pcmk__score_red; extern int pcmk__score_green; extern int pcmk__score_yellow; /*! * \internal * \brief Allocate new zero-initialized memory, asserting on failure * * \param[in] file File where \p function is located * \param[in] function Calling function * \param[in] line Line within \p file * \param[in] nmemb Number of elements to allocate memory for * \param[in] size Size of each element * * \return Newly allocated memory of of size nmemb * size (guaranteed * not to be \c NULL) * * \note The caller is responsible for freeing the return value using \c free(). */ static inline void * pcmk__assert_alloc_as(const char *file, const char *function, uint32_t line, size_t nmemb, size_t size) { void *ptr = calloc(nmemb, size); if (ptr == NULL) { crm_abort(file, function, line, "Out of memory", FALSE, TRUE); crm_exit(CRM_EX_OSERR); } return ptr; } /*! * \internal * \brief Allocate new zero-initialized memory, asserting on failure * * \param[in] nmemb Number of elements to allocate memory for * \param[in] size Size of each element * * \return Newly allocated memory of of size nmemb * size (guaranteed * not to be \c NULL) * * \note The caller is responsible for freeing the return value using \c free(). */ #define pcmk__assert_alloc(nmemb, size) \ pcmk__assert_alloc_as(__FILE__, __func__, __LINE__, nmemb, size) /*! * \internal * \brief Resize a dynamically allocated memory block * * \param[in] ptr Memory block to resize (or NULL to allocate new memory) * \param[in] size New size of memory block in bytes (must be > 0) * * \return Pointer to resized memory block * * \note This asserts on error, so the result is guaranteed to be non-NULL * (which is the main advantage of this over directly using realloc()). */ static inline void * pcmk__realloc(void *ptr, size_t size) { void *new_ptr; // realloc(p, 0) can replace free(p) but this wrapper can't pcmk__assert(size > 0); new_ptr = realloc(ptr, size); if (new_ptr == NULL) { free(ptr); abort(); } return new_ptr; } static inline char * pcmk__getpid_s(void) { return crm_strdup_printf("%lu", (unsigned long) getpid()); } // More efficient than g_list_length(list) == 1 static inline bool pcmk__list_of_1(GList *list) { return list && (list->next == NULL); } // More efficient than g_list_length(list) > 1 static inline bool pcmk__list_of_multiple(GList *list) { return list && (list->next != NULL); } /* convenience functions for failure-related node attributes */ #define PCMK__FAIL_COUNT_PREFIX "fail-count" #define PCMK__LAST_FAILURE_PREFIX "last-failure" /*! * \internal * \brief Generate a failure-related node attribute name for a resource * * \param[in] prefix Start of attribute name * \param[in] rsc_id Resource name * \param[in] op Operation name * \param[in] interval_ms Operation interval * * \return Newly allocated string with attribute name * * \note Failure attributes are named like PREFIX-RSC#OP_INTERVAL (for example, * "fail-count-myrsc#monitor_30000"). The '#' is used because it is not * a valid character in a resource ID, to reliably distinguish where the * operation name begins. The '_' is used simply to be more comparable to * action labels like "myrsc_monitor_30000". */ static inline char * pcmk__fail_attr_name(const char *prefix, const char *rsc_id, const char *op, guint interval_ms) { CRM_CHECK(prefix && rsc_id && op, return NULL); return crm_strdup_printf("%s-%s#%s_%u", prefix, rsc_id, op, interval_ms); } static inline char * pcmk__failcount_name(const char *rsc_id, const char *op, guint interval_ms) { return pcmk__fail_attr_name(PCMK__FAIL_COUNT_PREFIX, rsc_id, op, interval_ms); } static inline char * pcmk__lastfailure_name(const char *rsc_id, const char *op, guint interval_ms) { return pcmk__fail_attr_name(PCMK__LAST_FAILURE_PREFIX, rsc_id, op, interval_ms); } // internal resource agent functions (from agents.c) int pcmk__effective_rc(int rc); #ifdef __cplusplus } #endif #endif // PCMK__CRM_COMMON_INTERNAL__H diff --git a/lib/common/procfs.c b/lib/common/procfs.c index 4053a50d06..91853aafe7 100644 --- a/lib/common/procfs.c +++ b/lib/common/procfs.c @@ -1,233 +1,255 @@ /* * Copyright 2015-2024 the Pacemaker project contributors * * The version control history for this file may have further details. * * This source code is licensed under the GNU Lesser General Public License * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY. */ #include #include #include #include #include #include #include #include #if HAVE_LINUX_PROCFS /*! * \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[16] to hold the process name * \param[out] pid If not NULL, will be set to process ID of entry * * \return Standard Pacemaker return code * \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. The kernel * limits the process name to the first 15 characters (plus terminator). * It would be nice if there were a public kernel API constant for that * limit, but there isn't. */ static int pcmk__procfs_process_info(const struct dirent *entry, char *name, pid_t *pid) { int fd, local_pid; FILE *file; struct stat statbuf; char 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 = (pid_t) 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, "Name:\t%15[^\n]", name) != 1) { fclose(file); return -1; } name[15] = 0; fclose(file); } return 0; } #endif // HAVE_LINUX_PROCFS /*! * \internal * \brief Return process ID of a named process * * \param[in] name Process name (as used in /proc/.../status) * * \return Process ID of named process if running, 0 otherwise * * \note This will return 0 if the process is being run via valgrind. * This should be called only on Linux systems. */ pid_t pcmk__procfs_pid_of(const char *name) { #if HAVE_LINUX_PROCFS DIR *dp; struct dirent *entry; pid_t pid = 0; char entry_name[64] = { 0 }; dp = opendir("/proc"); if (dp == NULL) { crm_notice("Can not read /proc directory to track existing components"); return 0; } while ((entry = readdir(dp)) != NULL) { if ((pcmk__procfs_process_info(entry, entry_name, &pid) == pcmk_rc_ok) && pcmk__str_eq(entry_name, name, pcmk__str_casei) && (pcmk__pid_active(pid, NULL) == pcmk_rc_ok)) { crm_info("Found %s active as process %lld", name, (long long) pid); break; } pid = 0; } closedir(dp); return pid; #else return 0; #endif // HAVE_LINUX_PROCFS } /*! * \internal * \brief Calculate number of logical CPU cores from procfs * * \return Number of cores (or 1 if unable to determine) */ unsigned int pcmk__procfs_num_cores(void) { #if HAVE_LINUX_PROCFS int cores = 0; FILE *stream = NULL; /* Parse /proc/stat instead of /proc/cpuinfo because it's smaller */ stream = fopen("/proc/stat", "r"); if (stream == NULL) { crm_perror(LOG_INFO, "Could not open /proc/stat"); } else { char buffer[2048]; while (fgets(buffer, sizeof(buffer), stream)) { if (pcmk__starts_with(buffer, "cpu") && isdigit(buffer[3])) { ++cores; } } fclose(stream); } return cores? cores : 1; #else return 1; #endif // HAVE_LINUX_PROCFS } /*! * \internal * \brief Get the executable path corresponding to a process ID * * \param[in] pid Process ID to check * \param[out] path Where to store executable path * \param[in] path_size Size of \p path in characters (ideally PATH_MAX) * * \return Standard Pacemaker error code (as possible errno values from * readlink()) */ int pcmk__procfs_pid2path(pid_t pid, char path[], size_t path_size) { #if HAVE_LINUX_PROCFS char procfs_exe_path[PATH_MAX]; ssize_t link_rc; if (snprintf(procfs_exe_path, PATH_MAX, "/proc/%lld/exe", (long long) pid) >= PATH_MAX) { return ENAMETOOLONG; // Truncated (shouldn't be possible in practice) } link_rc = readlink(procfs_exe_path, path, path_size - 1); if (link_rc < 0) { return errno; } else if (link_rc >= (path_size - 1)) { return ENAMETOOLONG; } path[link_rc] = '\0'; return pcmk_rc_ok; #else return EOPNOTSUPP; #endif // HAVE_LINUX_PROCFS } /*! * \internal * \brief Check whether process ID information is available from procfs * * \return true if process ID information is available, otherwise false */ bool pcmk__procfs_has_pids(void) { #if HAVE_LINUX_PROCFS static bool have_pids = false; static bool checked = false; if (!checked) { char path[PATH_MAX]; have_pids = pcmk__procfs_pid2path(getpid(), path, sizeof(path)) == pcmk_rc_ok; checked = true; } return have_pids; #else return false; #endif // HAVE_LINUX_PROCFS } + +/*! + * \internal + * \brief Trigger a sysrq command if supported on current platform + * + * \param[in] t Sysrq command to trigger + */ +void +pcmk__sysrq_trigger(char t) +{ +#if HAVE_LINUX_PROCFS + // Root can always write here, regardless of kernel.sysrq value + FILE *procf = fopen("/proc/sysrq-trigger", "a"); + + if (procf == NULL) { + crm_warn("Could not open sysrq-trigger: %s", strerror(errno)); + } else { + fprintf(procf, "%c\n", t); + fclose(procf); + } +#endif // HAVE_LINUX_PROCFS +} diff --git a/lib/common/watchdog.c b/lib/common/watchdog.c index 6196e571a9..e64487a9ad 100644 --- a/lib/common/watchdog.c +++ b/lib/common/watchdog.c @@ -1,315 +1,293 @@ /* * Copyright 2013-2024 the Pacemaker project contributors * * The version control history for this file may have further details. * * This source code is licensed under the GNU Lesser General Public License * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY. */ #include #include #include #include #include #include #include #include #include #include static pid_t sbd_pid = 0; -/*! - * \internal - * \brief Trigger a sysrq command if supported on current platform - * - * \param[in] t Sysrq command to trigger - */ -static void -sysrq_trigger(char t) -{ -#if HAVE_LINUX_PROCFS - // Root can always write here, regardless of kernel.sysrq value - FILE *procf = fopen("/proc/sysrq-trigger", "a"); - - if (procf == NULL) { - crm_warn("Could not open sysrq-trigger: %s", strerror(errno)); - } else { - fprintf(procf, "%c\n", t); - fclose(procf); - } -#endif // HAVE_LINUX_PROCFS -} - /*! * \internal * \brief Tell pacemakerd to panic the local host * * \param[in] ppid Process ID of parent process */ static void panic_local_nonroot(pid_t ppid) { if (ppid > 1) { // pacemakerd is still our parent crm_emerg("Escalating panic to " PCMK__SERVER_PACEMAKERD "[%lld]", (long long) ppid); } else { // Signal (non-parent) pacemakerd if possible #if HAVE_LINUX_PROCFS ppid = pcmk__procfs_pid_of(PCMK__SERVER_PACEMAKERD); if (ppid > 0) { union sigval signal_value; crm_emerg("Signaling " PCMK__SERVER_PACEMAKERD "[%lld] to panic", (long long) ppid); memset(&signal_value, 0, sizeof(signal_value)); if (sigqueue(ppid, SIGQUIT, signal_value) < 0) { crm_emerg("Exiting after signal failure: %s", strerror(errno)); } } else { #endif crm_emerg("Exiting with no known " PCMK__SERVER_PACEMAKERD "process"); #if HAVE_LINUX_PROCFS } #endif } crm_exit(CRM_EX_PANIC); } /*! * \internal * \brief Panic the local host (if root) or tell pacemakerd to do so */ static void panic_local(void) { const char *full_panic_action = pcmk__env_option(PCMK__ENV_PANIC_ACTION); const char *panic_action = full_panic_action; int reboot_cmd = RB_AUTOBOOT; // Default panic action is reboot if (geteuid() != 0) { // Non-root caller such as the controller panic_local_nonroot(getppid()); return; } if (pcmk__starts_with(full_panic_action, "sync-")) { panic_action += sizeof("sync-") - 1; sync(); } if (pcmk__str_empty(full_panic_action) || pcmk__str_eq(panic_action, PCMK_VALUE_REBOOT, pcmk__str_none)) { - sysrq_trigger('b'); + pcmk__sysrq_trigger('b'); } else if (pcmk__str_eq(panic_action, PCMK_VALUE_CRASH, pcmk__str_none)) { - sysrq_trigger('c'); + pcmk__sysrq_trigger('c'); } else if (pcmk__str_eq(panic_action, PCMK_VALUE_OFF, pcmk__str_none)) { - sysrq_trigger('o'); + pcmk__sysrq_trigger('o'); #ifdef RB_POWER_OFF reboot_cmd = RB_POWER_OFF; #elif defined(RB_POWEROFF) reboot_cmd = RB_POWEROFF; #endif } else { crm_warn("Using default '" PCMK_VALUE_REBOOT "' for local option PCMK_" PCMK__ENV_PANIC_ACTION " because '%s' is not a valid value", full_panic_action); - sysrq_trigger('b'); + pcmk__sysrq_trigger('b'); } // sysrq failed or is not supported on this platform, so fall back to reboot reboot(reboot_cmd); // Even reboot failed, nothing left to do but exit crm_emerg("Exiting after reboot failed: %s", strerror(errno)); if (getppid() > 1) { // pacemakerd is parent process crm_exit(CRM_EX_PANIC); } else { // This is pacemakerd, or an orphaned subdaemon crm_exit(CRM_EX_FATAL); } } /*! * \internal * \brief Tell sbd to kill the local host, then exit */ static void panic_sbd(void) { union sigval signal_value; pid_t ppid = getppid(); memset(&signal_value, 0, sizeof(signal_value)); /* TODO: Arrange for a slightly less brutal option? */ if(sigqueue(sbd_pid, SIGKILL, signal_value) < 0) { crm_emerg("Panicking directly because couldn't signal sbd"); panic_local(); } if(ppid > 1) { /* child daemon */ crm_exit(CRM_EX_PANIC); } else { /* pacemakerd or orphan child */ crm_exit(CRM_EX_FATAL); } } /*! * \internal * \brief Panic the local host * * Panic the local host either by sbd (if running), directly, or by asking * pacemakerd. If trace logging this function, exit instead. * * \param[in] reason Why panic is needed (for logging only) */ void pcmk__panic(const char *reason) { if (pcmk__locate_sbd() > 1) { crm_emerg("Signaling sbd[%lld] to panic the system: %s", (long long) sbd_pid, reason); panic_sbd(); } else { crm_emerg("Panicking the system directly: %s", reason); panic_local(); } } /*! * \internal * \brief Return the process ID of sbd (or 0 if it is not running) */ pid_t pcmk__locate_sbd(void) { char *pidfile = NULL; char *sbd_path = NULL; int rc; if(sbd_pid > 1) { return sbd_pid; } /* Look for the pid file */ pidfile = crm_strdup_printf(PCMK__RUN_DIR "/sbd.pid"); sbd_path = crm_strdup_printf("%s/sbd", SBIN_DIR); /* Read the pid file */ rc = pcmk__pidfile_matches(pidfile, 0, sbd_path, &sbd_pid); if (rc == pcmk_rc_ok) { crm_trace("SBD detected at pid %lld (via PID file %s)", (long long) sbd_pid, pidfile); #if HAVE_LINUX_PROCFS } else { /* Fall back to /proc for systems that support it */ sbd_pid = pcmk__procfs_pid_of("sbd"); crm_trace("SBD detected at pid %lld (via procfs)", (long long) sbd_pid); #endif // HAVE_LINUX_PROCFS } if(sbd_pid < 0) { sbd_pid = 0; crm_trace("SBD not detected"); } free(pidfile); free(sbd_path); return sbd_pid; } long pcmk__get_sbd_watchdog_timeout(void) { static long sbd_timeout = -2; if (sbd_timeout == -2) { sbd_timeout = crm_get_msec(getenv("SBD_WATCHDOG_TIMEOUT")); } return sbd_timeout; } bool pcmk__get_sbd_sync_resource_startup(void) { static int sync_resource_startup = PCMK__SBD_SYNC_DEFAULT; static bool checked_sync_resource_startup = false; if (!checked_sync_resource_startup) { const char *sync_env = getenv("SBD_SYNC_RESOURCE_STARTUP"); if (sync_env == NULL) { crm_trace("Defaulting to %sstart-up synchronization with sbd", (PCMK__SBD_SYNC_DEFAULT? "" : "no ")); } else if (crm_str_to_boolean(sync_env, &sync_resource_startup) < 0) { crm_warn("Defaulting to %sstart-up synchronization with sbd " "because environment value '%s' is invalid", (PCMK__SBD_SYNC_DEFAULT? "" : "no "), sync_env); } checked_sync_resource_startup = true; } return sync_resource_startup != 0; } long pcmk__auto_stonith_watchdog_timeout(void) { long sbd_timeout = pcmk__get_sbd_watchdog_timeout(); return (sbd_timeout <= 0)? 0 : (2 * sbd_timeout); } bool pcmk__valid_stonith_watchdog_timeout(const char *value) { /* @COMPAT At a compatibility break, accept either negative values or a * specific string like "auto" (but not both) to mean "auto-calculate the * timeout." Reject other values that aren't parsable as timeouts. */ long st_timeout = value? crm_get_msec(value) : 0; if (st_timeout < 0) { st_timeout = pcmk__auto_stonith_watchdog_timeout(); crm_debug("Using calculated value %ld for " PCMK_OPT_STONITH_WATCHDOG_TIMEOUT " (%s)", st_timeout, value); } if (st_timeout == 0) { crm_debug("Watchdog may be enabled but " PCMK_OPT_STONITH_WATCHDOG_TIMEOUT " is disabled (%s)", value? value : "default"); } else if (pcmk__locate_sbd() == 0) { crm_emerg("Shutting down: " PCMK_OPT_STONITH_WATCHDOG_TIMEOUT " configured (%s) but SBD not active", pcmk__s(value, "auto")); crm_exit(CRM_EX_FATAL); return false; } else { long sbd_timeout = pcmk__get_sbd_watchdog_timeout(); if (st_timeout < sbd_timeout) { crm_emerg("Shutting down: " PCMK_OPT_STONITH_WATCHDOG_TIMEOUT " (%s) too short (must be >%ldms)", value, sbd_timeout); crm_exit(CRM_EX_FATAL); return false; } crm_info("Watchdog configured with " PCMK_OPT_STONITH_WATCHDOG_TIMEOUT " %s and SBD timeout %ldms", value, sbd_timeout); } return true; }