/************************************************************************ * * Nagios Main Header File * Written By: Ethan Galstad (egalstad@nagios.org) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program 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., 675 Mass Ave, Cambridge, MA 02139, USA. ************************************************************************/ #ifndef NAGIOS_NAGIOS_H_INCLUDED #define NAGIOS_NAGIOS_H_INCLUDED #ifndef NSCORE # define NSCORE #endif #include "defaults.h" #include "common.h" #include "logging.h" #include "locations.h" #include "objects.h" #include "macros.h" /* * global variables only used in the core. Reducing this list would be * a Good Thing(tm). */ extern char *nagios_binary_path; extern char *config_file; extern char *command_file; extern char *temp_file; extern char *temp_path; extern char *check_result_path; extern char *lock_file; extern char *object_precache_file; extern unsigned int nofile_limit, nproc_limit, max_apps; extern int num_check_workers; extern char *qh_socket_path; extern char *nagios_user; extern char *nagios_group; extern char *macro_user[MAX_USER_MACROS]; extern char *ocsp_command; extern char *ochp_command; extern command *ocsp_command_ptr; extern command *ochp_command_ptr; extern int ocsp_timeout; extern int ochp_timeout; extern char *global_host_event_handler; extern char *global_service_event_handler; extern command *global_host_event_handler_ptr; extern command *global_service_event_handler_ptr; extern char *illegal_object_chars; extern int use_regexp_matches; extern int use_true_regexp_matching; extern int use_syslog; extern char *log_file; extern char *log_archive_path; extern int log_notifications; extern int log_service_retries; extern int log_host_retries; extern int log_event_handlers; extern int log_external_commands; extern int log_passive_checks; extern unsigned long logging_options; extern unsigned long syslog_options; extern int service_check_timeout; extern int service_check_timeout_state; extern int host_check_timeout; extern int event_handler_timeout; extern int notification_timeout; extern int log_initial_states; extern int log_current_states; extern int daemon_dumps_core; extern int sig_id; extern int caught_signal; extern int verify_config; extern int test_scheduling; extern int precache_objects; extern int use_precached_objects; extern int service_inter_check_delay_method; extern int host_inter_check_delay_method; extern int service_interleave_factor_method; extern int max_host_check_spread; extern int max_service_check_spread; extern sched_info scheduling_info; extern int max_parallel_service_checks; extern int check_reaper_interval; extern int max_check_reaper_time; extern int service_freshness_check_interval; extern int host_freshness_check_interval; extern int auto_rescheduling_interval; extern int auto_rescheduling_window; extern int check_orphaned_services; extern int check_orphaned_hosts; extern int check_service_freshness; extern int check_host_freshness; extern int auto_reschedule_checks; extern int additional_freshness_latency; extern int check_for_updates; extern int bare_update_check; extern time_t last_update_check; extern unsigned long update_uid; extern int update_available; extern char *last_program_version; extern char *new_program_version; extern int use_aggressive_host_checking; extern time_t cached_host_check_horizon; extern time_t cached_service_check_horizon; extern int enable_predictive_host_dependency_checks; extern int enable_predictive_service_dependency_checks; extern int soft_state_dependencies; extern int retain_state_information; extern int retention_update_interval; extern int use_retained_program_state; extern int use_retained_scheduling_info; extern int retention_scheduling_horizon; extern char *retention_file; extern unsigned long retained_host_attribute_mask; extern unsigned long retained_service_attribute_mask; extern unsigned long retained_contact_host_attribute_mask; extern unsigned long retained_contact_service_attribute_mask; extern unsigned long retained_process_host_attribute_mask; extern unsigned long retained_process_service_attribute_mask; extern int translate_passive_host_checks; extern int passive_host_checks_are_soft; extern int status_update_interval; extern char *retention_file; extern int time_change_threshold; extern unsigned long event_broker_options; extern double low_service_flap_threshold; extern double high_service_flap_threshold; extern double low_host_flap_threshold; extern double high_host_flap_threshold; extern int use_large_installation_tweaks; extern int enable_environment_macros; extern int free_child_process_memory; extern int child_processes_fork_twice; extern char *use_timezone; extern time_t max_check_result_file_age; extern char *debug_file; extern int debug_level; extern int debug_verbosity; extern unsigned long max_debug_file_size; extern int allow_empty_hostgroup_assignment; extern int host_down_disable_service_checks; extern time_t last_program_stop; extern time_t event_start; extern int sigshutdown, sigrestart; extern int currently_running_service_checks; extern int currently_running_host_checks; extern unsigned long next_event_id; extern unsigned long next_problem_id; extern unsigned long next_comment_id; extern unsigned long next_notification_id; extern unsigned long modified_process_attributes; extern unsigned long modified_host_process_attributes; extern unsigned long modified_service_process_attributes; extern squeue_t *nagios_squeue; extern iobroker_set *nagios_iobs; extern struct check_stats check_statistics[MAX_CHECK_STATS_TYPES]; /*** perfdata variables ***/ extern int perfdata_timeout; extern char *host_perfdata_command; extern char *service_perfdata_command; extern char *host_perfdata_file_template; extern char *service_perfdata_file_template; extern char *host_perfdata_file; extern char *service_perfdata_file; extern int host_perfdata_file_append; extern int service_perfdata_file_append; extern int host_perfdata_file_pipe; extern int service_perfdata_file_pipe; extern unsigned long host_perfdata_file_processing_interval; extern unsigned long service_perfdata_file_processing_interval; extern char *host_perfdata_file_processing_command; extern char *service_perfdata_file_processing_command; extern int host_perfdata_process_empty_results; extern int service_perfdata_process_empty_results; /*** end perfdata variables */ extern struct notify_list *notification_list; extern struct check_engine nagios_check_engine; /* * Everything we need to keep system load in check. * Don't use this from modules. */ struct load_control { time_t last_check; /* last time we checked the real load */ time_t last_change; /* last time we changed settings */ time_t check_interval; /* seconds between load checks */ double load[3]; /* system load, as reported by getloadavg() */ float backoff_limit; /* limit we must reach before we back off */ float rampup_limit; /* limit we must reach before we ramp back up */ unsigned int backoff_change; /* backoff by this much */ unsigned int rampup_change; /* ramp up by this much */ unsigned int changes; /* number of times we've changed settings */ unsigned int jobs_max; /* upper setting for jobs_limit */ unsigned int jobs_limit; /* current limit */ unsigned int jobs_min; /* lower setting for jobs_limit */ unsigned int jobs_running; /* jobs currently running */ unsigned int nproc_limit; /* rlimit for user processes */ unsigned int nofile_limit; /* rlimit for open files */ unsigned int options; /* various option flags */ }; extern struct load_control loadctl; /* options for load control */ #define LOADCTL_ENABLED (1 << 0) /************* MISC LENGTH/SIZE DEFINITIONS ***********/ /* NOTE: Plugin length is artificially capped at 8k to prevent runaway plugins from returning MBs/GBs of data back to Nagios. If you increase the 8k cap by modifying this value, make sure you also increase the value of MAX_EXTERNAL_COMMAND_LENGTH in common.h to allow for passive checks results received through the external command file. EG 10/19/07 */ #define MAX_PLUGIN_OUTPUT_LENGTH 8192 /* max length of plugin output (including perf data) */ /******************* STATE LOGGING TYPES **************/ #define INITIAL_STATES 1 #define CURRENT_STATES 2 /************ SERVICE DEPENDENCY VALUES ***************/ #define DEPENDENCIES_OK 0 #define DEPENDENCIES_FAILED 1 /*********** ROUTE CHECK PROPAGATION TYPES ************/ #define PROPAGATE_TO_PARENT_HOSTS 1 #define PROPAGATE_TO_CHILD_HOSTS 2 /****************** FLAPPING TYPES ********************/ #define HOST_FLAPPING 0 #define SERVICE_FLAPPING 1 /**************** NOTIFICATION TYPES ******************/ #define HOST_NOTIFICATION 0 #define SERVICE_NOTIFICATION 1 /************* NOTIFICATION REASON TYPES ***************/ #define NOTIFICATION_NORMAL 0 #define NOTIFICATION_ACKNOWLEDGEMENT 1 #define NOTIFICATION_FLAPPINGSTART 2 #define NOTIFICATION_FLAPPINGSTOP 3 #define NOTIFICATION_FLAPPINGDISABLED 4 #define NOTIFICATION_DOWNTIMESTART 5 #define NOTIFICATION_DOWNTIMEEND 6 #define NOTIFICATION_DOWNTIMECANCELLED 7 #define NOTIFICATION_CUSTOM 8 /**************** EVENT HANDLER TYPES *****************/ #define HOST_EVENTHANDLER 0 #define SERVICE_EVENTHANDLER 1 #define GLOBAL_HOST_EVENTHANDLER 2 #define GLOBAL_SERVICE_EVENTHANDLER 3 /***************** STATE CHANGE TYPES *****************/ #define HOST_STATECHANGE 0 #define SERVICE_STATECHANGE 1 /***************** OBJECT CHECK TYPES *****************/ #define SERVICE_CHECK 0 #define HOST_CHECK 1 /******************* EVENT TYPES **********************/ #define EVENT_SERVICE_CHECK 0 /* active service check */ #define EVENT_COMMAND_CHECK 1 /* external command check */ #define EVENT_LOG_ROTATION 2 /* log file rotation */ #define EVENT_PROGRAM_SHUTDOWN 3 /* program shutdown */ #define EVENT_PROGRAM_RESTART 4 /* program restart */ #define EVENT_CHECK_REAPER 5 /* reaps results from host and service checks */ #define EVENT_ORPHAN_CHECK 6 /* checks for orphaned hosts and services */ #define EVENT_RETENTION_SAVE 7 /* save (dump) retention data */ #define EVENT_STATUS_SAVE 8 /* save (dump) status data */ #define EVENT_SCHEDULED_DOWNTIME 9 /* scheduled host or service downtime */ #define EVENT_SFRESHNESS_CHECK 10 /* checks service result "freshness" */ #define EVENT_EXPIRE_DOWNTIME 11 /* checks for (and removes) expired scheduled downtime */ #define EVENT_HOST_CHECK 12 /* active host check */ #define EVENT_HFRESHNESS_CHECK 13 /* checks host result "freshness" */ #define EVENT_RESCHEDULE_CHECKS 14 /* adjust scheduling of host and service checks */ #define EVENT_EXPIRE_COMMENT 15 /* removes expired comments */ #define EVENT_CHECK_PROGRAM_UPDATE 16 /* checks for new version of Nagios */ #define EVENT_SLEEP 98 /* asynchronous sleep event that occurs when event queues are empty */ #define EVENT_USER_FUNCTION 99 /* USER-defined function (modules) */ /* * VERSIONFIX: Make EVENT_SLEEP and EVENT_USER_FUNCTION appear * linearly in order. */ #define EVENT_TYPE_STR(type) ( \ type == EVENT_SERVICE_CHECK ? "SERVICE_CHECK" : \ type == EVENT_COMMAND_CHECK ? "COMMAND_CHECK" : \ type == EVENT_LOG_ROTATION ? "LOG_ROTATION" : \ type == EVENT_PROGRAM_SHUTDOWN ? "PROGRAM_SHUTDOWN" : \ type == EVENT_PROGRAM_RESTART ? "PROGRAM_RESTART" : \ type == EVENT_CHECK_REAPER ? "CHECK_REAPER" : \ type == EVENT_ORPHAN_CHECK ? "ORPHAN_CHECK" : \ type == EVENT_RETENTION_SAVE ? "RETENTION_SAVE" : \ type == EVENT_STATUS_SAVE ? "STATUS_SAVE" : \ type == EVENT_SCHEDULED_DOWNTIME ? "SCHEDULED_DOWNTIME" : \ type == EVENT_SFRESHNESS_CHECK ? "SFRESHNESS_CHECK" : \ type == EVENT_EXPIRE_DOWNTIME ? "EXPIRE_DOWNTIME" : \ type == EVENT_HOST_CHECK ? "HOST_CHECK" : \ type == EVENT_HFRESHNESS_CHECK ? "HFRESHNESS_CHECK" : \ type == EVENT_RESCHEDULE_CHECKS ? "RESCHEDULE_CHECKS" : \ type == EVENT_EXPIRE_COMMENT ? "EXPIRE_COMMENT" : \ type == EVENT_CHECK_PROGRAM_UPDATE ? "CHECK_PROGRAM_UPDATE" : \ type == EVENT_SLEEP ? "SLEEP" : \ type == EVENT_USER_FUNCTION ? "USER_FUNCTION" : \ "UNKNOWN" \ ) /******* INTER-CHECK DELAY CALCULATION TYPES **********/ #define ICD_NONE 0 /* no inter-check delay */ #define ICD_DUMB 1 /* dumb delay of 1 second */ #define ICD_SMART 2 /* smart delay */ #define ICD_USER 3 /* user-specified delay */ /******* INTERLEAVE FACTOR CALCULATION TYPES **********/ #define ILF_USER 0 /* user-specified interleave factor */ #define ILF_SMART 1 /* smart interleave */ /************ SCHEDULED DOWNTIME TYPES ****************/ #define ACTIVE_DOWNTIME 0 /* active downtime - currently in effect */ #define PENDING_DOWNTIME 1 /* pending downtime - scheduled for the future */ NAGIOS_BEGIN_DECL /* useful for hosts and services to determine time 'til next check */ #define normal_check_window(o) ((time_t)(o->check_interval * interval_length)) #define retry_check_window(o) ((time_t)(o->retry_interval * interval_length)) #define check_window(o) \ ((o->current_state && o->state_type == SOFT_STATE) ? \ retry_check_window(o) : \ normal_check_window(o)) /** Nerd subscription type */ struct nerd_subscription { int sd; struct nerd_channel *chan; char *format; /* requested format (macro string) for this subscription */ }; /******************** FUNCTIONS **********************/ extern int set_loadctl_options(char *opts, unsigned int len); /* silly helpers useful pretty much all over the place */ extern const char *service_state_name(int state); extern const char *host_state_name(int state); extern const char *state_type_name(int state_type); extern const char *check_type_name(int check_type); extern const char *check_result_source(check_result *cr); /*** Nagios Event Radio Dispatcher functions ***/ extern int nerd_init(void); extern int nerd_mkchan(const char *name, const char *description, int (*handler)(int, void *), unsigned int callbacks); extern int nerd_cancel_subscriber(int sd); extern int nerd_get_channel_id(const char *chan_name); extern objectlist *nerd_get_subscriptions(int chan_id); extern int nerd_broadcast(unsigned int chan_id, void *buf, unsigned int len); /*** Query Handler functions, types and macros*/ typedef int (*qh_handler)(int, char *, unsigned int); extern int dump_event_stats(int sd); /* return codes for query_handlers() */ #define QH_OK 0 /* keep listening */ #define QH_CLOSE 1 /* we should close the socket */ #define QH_INVALID 2 /* invalid query. Log and close */ #define QH_TAKEOVER 3 /* handler will take full control. de-register but don't close */ extern int qh_init(const char *path); extern void qh_deinit(const char *path); extern int qh_register_handler(const char *name, const char *description, unsigned int options, qh_handler handler); extern const char *qh_strerror(int code); /**** Configuration Functions ****/ int read_main_config_file(char *); /* reads the main config file (nagios.cfg) */ int read_resource_file(char *); /* processes macros in resource file */ int read_all_object_data(char *); /* reads all object config data */ /**** Setup Functions ****/ int pre_flight_check(void); /* try and verify the configuration data */ int pre_flight_object_check(int *, int *); /* verify object relationships and settings */ int pre_flight_circular_check(int *, int *); /* detects circular dependencies and paths */ void init_timing_loop(void); /* setup the initial scheduling queue */ void setup_sighandler(void); /* trap signals */ void reset_sighandler(void); /* reset signals to default action */ extern void handle_sigxfsz(int); /* handle SIGXFSZ */ int daemon_init(void); /* switches to daemon mode */ int drop_privileges(char *, char *); /* drops privileges before startup */ void display_scheduling_info(void); /* displays service check scheduling information */ void init_main_cfg_vars(int); /* Initialize the non-shared main configuration variables */ /**** Event Queue Functions ****/ int init_event_queue(void); /* creates the queue nagios_squeue */ timed_event *schedule_new_event(int, int, time_t, int, unsigned long, void *, int, void *, void *, int); /* schedules a new timed event */ void reschedule_event(squeue_t *sq, timed_event *event); /* reschedules an event */ void add_event(squeue_t *sq, timed_event *event); /* adds an event to the execution queue */ void remove_event(squeue_t *sq, timed_event *event); /* remove an event from the execution queue */ int event_execution_loop(void); /* main monitoring/event handler loop */ int handle_timed_event(timed_event *); /* top level handler for timed events */ void adjust_check_scheduling(void); /* auto-adjusts scheduling of host and service checks */ void compensate_for_system_time_change(unsigned long, unsigned long); /* attempts to compensate for a change in the system time */ void adjust_timestamp_for_time_change(time_t, time_t, unsigned long, time_t *); /* adjusts a timestamp variable for a system time change */ /**** IPC Functions ****/ int process_check_result_queue(char *); int process_check_result_file(char *); int process_check_result(check_result *); int delete_check_result_file(char *); int init_check_result(check_result *); int free_check_result(check_result *); /* frees memory associated with a host/service check result */ int parse_check_output(char *, char **, char **, char **, int, int); int open_command_file(void); /* creates the external command file as a named pipe (FIFO) and opens it for reading */ int close_command_file(void); /* closes and deletes the external command file (FIFO) */ /**** Monitoring/Event Handler Functions ****/ int check_service_parents(service *svc); /* checks service parents */ int check_service_dependencies(service *, int); /* checks service dependencies */ int check_host_dependencies(host *, int); /* checks host dependencies */ void check_for_orphaned_services(void); /* checks for orphaned services */ void check_for_orphaned_hosts(void); /* checks for orphaned hosts */ void check_service_result_freshness(void); /* checks the "freshness" of service check results */ int is_service_result_fresh(service *, time_t, int); /* determines if a service's check results are fresh */ void check_host_result_freshness(void); /* checks the "freshness" of host check results */ int is_host_result_fresh(host *, time_t, int); /* determines if a host's check results are fresh */ int my_system(char *, int, int *, double *, char **, int); /* executes a command via popen(), but also protects against timeouts */ int my_system_r(nagios_macros *mac, char *, int, int *, double *, char **, int); /* thread-safe version of the above */ /**** Flap Detection Functions ****/ void check_for_service_flapping(service *, int, int); /* determines whether or not a service is "flapping" between states */ void check_for_host_flapping(host *, int, int, int); /* determines whether or not a host is "flapping" between states */ void set_service_flap(service *, double, double, double, int); /* handles a service that is flapping */ void clear_service_flap(service *, double, double, double, int); /* handles a service that has stopped flapping */ void set_host_flap(host *, double, double, double, int); /* handles a host that is flapping */ void clear_host_flap(host *, double, double, double, int); /* handles a host that has stopped flapping */ void enable_flap_detection_routines(void); /* enables flap detection on a program-wide basis */ void disable_flap_detection_routines(void); /* disables flap detection on a program-wide basis */ void enable_host_flap_detection(host *); /* enables flap detection for a particular host */ void disable_host_flap_detection(host *); /* disables flap detection for a particular host */ void enable_service_flap_detection(service *); /* enables flap detection for a particular service */ void disable_service_flap_detection(service *); /* disables flap detection for a particular service */ void handle_host_flap_detection_disabled(host *); /* handles the details when flap detection is disabled globally or on a per-host basis */ void handle_service_flap_detection_disabled(service *); /* handles the details when flap detection is disabled globally or on a per-service basis */ /**** Route/Host Check Functions ****/ int check_host_check_viability(host *, int, int *, time_t *); int adjust_host_check_attempt(host *, int); int determine_host_reachability(host *); int process_host_check_result(host *, int, char *, int, int, int, unsigned long); int perform_on_demand_host_check(host *, int *, int, int, unsigned long); int execute_sync_host_check(host *); int run_scheduled_host_check(host *, int, double); int run_async_host_check(host *, int, double, int, int, int *, time_t *); int handle_async_host_check_result(host *, check_result *); /**** Service Check Functions ****/ int check_service_check_viability(service *, int, int *, time_t *); int run_scheduled_service_check(service *, int, double); int run_async_service_check(service *, int, double, int, int, int *, time_t *); int handle_async_service_check_result(service *, check_result *); /**** Event Handler Functions ****/ int handle_host_state(host *); /* top level host state handler */ /**** Common Check Functions *****/ int reap_check_results(void); /**** Check Statistics Functions ****/ int init_check_stats(void); int update_check_stats(int, time_t); int generate_check_stats(void); /**** Event Handler Functions ****/ int obsessive_compulsive_service_check_processor(service *); /* distributed monitoring craziness... */ int obsessive_compulsive_host_check_processor(host *); /* distributed monitoring craziness... */ int handle_service_event(service *); /* top level service event logic */ int run_service_event_handler(nagios_macros *mac, service *); /* runs the event handler for a specific service */ int run_global_service_event_handler(nagios_macros *mac, service *); /* runs the global service event handler */ int handle_host_event(host *); /* top level host event logic */ int run_host_event_handler(nagios_macros *mac, host *); /* runs the event handler for a specific host */ int run_global_host_event_handler(nagios_macros *mac, host *); /* runs the global host event handler */ /**** Notification Functions ****/ const char *notification_reason_name(unsigned int reason_type); int check_service_notification_viability(service *, int, int); /* checks viability of notifying all contacts about a service */ int is_valid_escalation_for_service_notification(service *, serviceescalation *, int); /* checks if an escalation entry is valid for a particular service notification */ int should_service_notification_be_escalated(service *); /* checks if a service notification should be escalated */ int service_notification(service *, int, char *, char *, int); /* notify all contacts about a service (problem or recovery) */ int check_contact_service_notification_viability(contact *, service *, int, int); /* checks viability of notifying a contact about a service */ int notify_contact_of_service(nagios_macros *mac, contact *, service *, int, char *, char *, int, int); /* notify a single contact about a service */ int check_host_notification_viability(host *, int, int); /* checks viability of notifying all contacts about a host */ int is_valid_escalation_for_host_notification(host *, hostescalation *, int); /* checks if an escalation entry is valid for a particular host notification */ int should_host_notification_be_escalated(host *); /* checks if a host notification should be escalated */ int host_notification(host *, int, char *, char *, int); /* notify all contacts about a host (problem or recovery) */ int check_contact_host_notification_viability(contact *, host *, int, int); /* checks viability of notifying a contact about a host */ int notify_contact_of_host(nagios_macros *mac, contact *, host *, int, char *, char *, int, int); /* notify a single contact about a host */ int create_notification_list_from_host(nagios_macros *mac, host *,int,int *,int); /* given a host, create list of contacts to be notified (remove duplicates) */ int create_notification_list_from_service(nagios_macros *mac, service *,int,int *,int); /* given a service, create list of contacts to be notified (remove duplicates) */ int add_notification(nagios_macros *mac, contact *); /* adds a notification instance */ notification *find_notification(contact *); /* finds a notification object */ time_t get_next_host_notification_time(host *, time_t); /* calculates nex acceptable re-notification time for a host */ time_t get_next_service_notification_time(service *, time_t); /* calculates nex acceptable re-notification time for a service */ /**** Cleanup Functions ****/ void cleanup(void); /* cleanup after ourselves (before quitting or restarting) */ void free_memory(nagios_macros *mac); /* free memory allocated to all linked lists in memory */ int reset_variables(void); /* reset all global variables */ void free_notification_list(void); /* frees all memory allocated to the notification list */ /**** Miscellaneous Functions ****/ void sighandler(int); /* handles signals */ void my_system_sighandler(int); /* handles timeouts when executing commands via my_system() */ char *get_next_string_from_buf(char *buf, int *start_index, int bufsize); int compare_strings(char *, char *); /* compares two strings for equality */ char *escape_newlines(char *); /** * Unescapes newlines and backslashes in a check result output string read from * a source that uses newlines as a delimiter (e.g., files in the checkresults * spool dir, or the command pipe). * @note: There is an unescape_newlines() in cgi/cgiutils.c that unescapes more * than '\\' and '\n' in place. Since this function is specifically intended * for processing escaped plugin output, we'll use a more specific name to * avoid confusion and conflicts. * @param rawbuf Input string tp unescape. * @return An unescaped copy of rawbuf in a newly allocated string, or NULL if * rawbuf is NULL or no memory could be allocated for the new string. */ char *unescape_check_result_output(const char *rawbuf); int contains_illegal_object_chars(char *); /* tests whether or not an object name (host, service, etc.) contains illegal characters */ int my_rename(char *, char *); /* renames a file - works across filesystems */ int my_fcopy(char *, char *); /* copies a file - works across filesystems */ int my_fdcopy(char *, char *, int); /* copies a named source to an already opened destination file */ /* thread-safe version of get_raw_command_line_r() */ extern int get_raw_command_line_r(nagios_macros *mac, command *, char *, char **, int); /* * given a raw command line, determine the actual command to run * Manipulates global_macros.argv and is thus not threadsafe */ extern int get_raw_command_line(command *, char *, char **, int); int check_time_against_period(time_t, timeperiod *); /* check to see if a specific time is covered by a time period */ int is_daterange_single_day(daterange *); time_t calculate_time_from_weekday_of_month(int, int, int, int); /* calculates midnight time of specific (3rd, last, etc.) weekday of a particular month */ time_t calculate_time_from_day_of_month(int, int, int); /* calculates midnight time of specific (1st, last, etc.) day of a particular month */ void get_next_valid_time(time_t, time_t *, timeperiod *); /* get the next valid time in a time period */ time_t get_next_log_rotation_time(void); /* determine the next time to schedule a log rotation */ int dbuf_init(dbuf *, int); int dbuf_free(dbuf *); int dbuf_strcat(dbuf *, const char *); int set_environment_var(char *, char *, int); /* sets/clears and environment variable */ int check_for_nagios_updates(int, int); /* checks to see if new version of Nagios are available */ int query_update_api(void); /* checks to see if new version of Nagios are available */ /**** External Command Functions ****/ int process_external_command1(char *); /* top-level external command processor */ int process_external_command2(int, time_t, char *); /* process an external command */ int process_external_commands_from_file(char *, int); /* process external commands in a file */ int process_host_command(int, time_t, char *); /* process an external host command */ int process_hostgroup_command(int, time_t, char *); /* process an external hostgroup command */ int process_service_command(int, time_t, char *); /* process an external service command */ int process_servicegroup_command(int, time_t, char *); /* process an external servicegroup command */ int process_contact_command(int, time_t, char *); /* process an external contact command */ int process_contactgroup_command(int, time_t, char *); /* process an external contactgroup command */ /**** External Command Implementations ****/ int cmd_add_comment(int, time_t, char *); /* add a service or host comment */ int cmd_delete_comment(int, char *); /* delete a service or host comment */ int cmd_delete_all_comments(int, char *); /* delete all comments associated with a host or service */ int cmd_delay_notification(int, char *); /* delay a service or host notification */ int cmd_schedule_check(int, char *); /* schedule an immediate or delayed host check */ int cmd_schedule_host_service_checks(int, char *, int); /* schedule an immediate or delayed checks of all services on a host */ int cmd_signal_process(int, char *); /* schedules a program shutdown or restart */ int cmd_process_service_check_result(int, time_t, char *); /* processes a passive service check */ int cmd_process_host_check_result(int, time_t, char *); /* processes a passive host check */ int cmd_acknowledge_problem(int, char *); /* acknowledges a host or service problem */ int cmd_remove_acknowledgement(int, char *); /* removes a host or service acknowledgement */ int cmd_schedule_downtime(int, time_t, char *); /* schedules host or service downtime */ int cmd_delete_downtime(int, char *); /* cancels active/pending host or service scheduled downtime */ int cmd_change_object_int_var(int, char *); /* changes host/svc (int) variable */ int cmd_change_object_char_var(int, char *); /* changes host/svc (char) variable */ int cmd_change_object_custom_var(int, char *); /* changes host/svc custom variable */ int cmd_process_external_commands_from_file(int, char *); /* process external commands from a file */ int cmd_delete_downtime_by_start_time_comment(int, char *); int cmd_delete_downtime_by_host_name(int, char *); int cmd_delete_downtime_by_hostgroup_name(int, char *); int process_passive_service_check(time_t, char *, char *, int, char *); int process_passive_host_check(time_t, char *, int, char *); /**** Internal Command Implementations ****/ void disable_service_checks(service *); /* disables a service check */ void enable_service_checks(service *); /* enables a service check */ void schedule_service_check(service *, time_t, int); /* schedules an immediate or delayed service check */ void schedule_host_check(host *, time_t, int); /* schedules an immediate or delayed host check */ void enable_all_notifications(void); /* enables notifications on a program-wide basis */ void disable_all_notifications(void); /* disables notifications on a program-wide basis */ void enable_service_notifications(service *); /* enables service notifications */ void disable_service_notifications(service *); /* disables service notifications */ void enable_host_notifications(host *); /* enables host notifications */ void disable_host_notifications(host *); /* disables host notifications */ void enable_and_propagate_notifications(host *, int, int, int, int); /* enables notifications for all hosts and services beyond a given host */ void disable_and_propagate_notifications(host *, int, int, int, int); /* disables notifications for all hosts and services beyond a given host */ void schedule_and_propagate_downtime(host *, time_t, char *, char *, time_t, time_t, int, unsigned long, unsigned long); /* schedules downtime for all hosts beyond a given host */ void acknowledge_host_problem(host *, char *, char *, int, int, int); /* acknowledges a host problem */ void acknowledge_service_problem(service *, char *, char *, int, int, int); /* acknowledges a service problem */ void remove_host_acknowledgement(host *); /* removes a host acknowledgement */ void remove_service_acknowledgement(service *); /* removes a service acknowledgement */ void start_executing_service_checks(void); /* starts executing service checks */ void stop_executing_service_checks(void); /* stops executing service checks */ void start_accepting_passive_service_checks(void); /* starts accepting passive service check results */ void stop_accepting_passive_service_checks(void); /* stops accepting passive service check results */ void enable_passive_service_checks(service *); /* enables passive service checks for a particular service */ void disable_passive_service_checks(service *); /* disables passive service checks for a particular service */ void start_using_event_handlers(void); /* enables event handlers on a program-wide basis */ void stop_using_event_handlers(void); /* disables event handlers on a program-wide basis */ void enable_service_event_handler(service *); /* enables the event handler for a particular service */ void disable_service_event_handler(service *); /* disables the event handler for a particular service */ void enable_host_event_handler(host *); /* enables the event handler for a particular host */ void disable_host_event_handler(host *); /* disables the event handler for a particular host */ void enable_host_checks(host *); /* enables checks of a particular host */ void disable_host_checks(host *); /* disables checks of a particular host */ void start_obsessing_over_service_checks(void); /* start obsessing about service check results */ void stop_obsessing_over_service_checks(void); /* stop obsessing about service check results */ void start_obsessing_over_host_checks(void); /* start obsessing about host check results */ void stop_obsessing_over_host_checks(void); /* stop obsessing about host check results */ void enable_service_freshness_checks(void); /* enable service freshness checks */ void disable_service_freshness_checks(void); /* disable service freshness checks */ void enable_host_freshness_checks(void); /* enable host freshness checks */ void disable_host_freshness_checks(void); /* disable host freshness checks */ void enable_performance_data(void); /* enables processing of performance data on a program-wide basis */ void disable_performance_data(void); /* disables processing of performance data on a program-wide basis */ void start_executing_host_checks(void); /* starts executing host checks */ void stop_executing_host_checks(void); /* stops executing host checks */ void start_accepting_passive_host_checks(void); /* starts accepting passive host check results */ void stop_accepting_passive_host_checks(void); /* stops accepting passive host check results */ void enable_passive_host_checks(host *); /* enables passive host checks for a particular host */ void disable_passive_host_checks(host *); /* disables passive host checks for a particular host */ void start_obsessing_over_service(service *); /* start obsessing about specific service check results */ void stop_obsessing_over_service(service *); /* stop obsessing about specific service check results */ void start_obsessing_over_host(host *); /* start obsessing about specific host check results */ void stop_obsessing_over_host(host *); /* stop obsessing about specific host check results */ void set_host_notification_number(host *, int); /* sets current notification number for a specific host */ void set_service_notification_number(service *, int); /* sets current notification number for a specific service */ void enable_contact_host_notifications(contact *); /* enables host notifications for a specific contact */ void disable_contact_host_notifications(contact *); /* disables host notifications for a specific contact */ void enable_contact_service_notifications(contact *); /* enables service notifications for a specific contact */ void disable_contact_service_notifications(contact *); /* disables service notifications for a specific contact */ void clear_host_flapping_state(host *); /* clears the flapping state for a specific host */ void clear_service_flapping_state(service *); /* clears the flapping state for a specific service */ int launch_command_file_worker(void); int shutdown_command_file_worker(void); char *get_program_version(void); char *get_program_modification_date(void); NAGIOS_END_DECL #endif