xref: /illumos-gate/usr/src/cmd/svc/startd/startd.h (revision 16d53a89)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
24  * Copyright (c) 2015, Joyent, Inc. All rights reserved.
25  */
26 
27 #ifndef	_STARTD_H
28 #define	_STARTD_H
29 
30 #include <sys/time.h>
31 #include <librestart.h>
32 #include <librestart_priv.h>
33 #include <libscf.h>
34 #include <libsysevent.h>
35 #include <libuutil.h>
36 #include <pthread.h>
37 #include <synch.h>
38 #include <stdio.h>
39 #include <syslog.h>
40 #include <umem.h>
41 
42 #ifdef	__cplusplus
43 extern "C" {
44 #endif
45 
46 /*
47  * We want MUTEX_HELD, but we also want pthreads.  So we're stuck with this
48  * for the native build, at least until the build machines can catch up
49  * with the latest version of MUTEX_HELD() in <synch.h>.
50  */
51 #if defined(NATIVE_BUILD)
52 #undef	MUTEX_HELD
53 #define	MUTEX_HELD(m)		_mutex_held((mutex_t *)(m))
54 #endif
55 
56 #ifndef NDEBUG
57 
58 #define	MUTEX_LOCK(mp)	{						\
59 	int err;							\
60 	if ((err = pthread_mutex_lock((mp))) != 0) {			\
61 		(void) fprintf(stderr,					\
62 		    "pthread_mutex_lock() failed on %s:%d: %s\n",	\
63 		    __FILE__, __LINE__, strerror(err));			\
64 		abort();						\
65 	}								\
66 }
67 
68 #define	MUTEX_UNLOCK(mp)	{					\
69 	int err;							\
70 	if ((err = pthread_mutex_unlock((mp))) != 0) {			\
71 		(void) fprintf(stderr,					\
72 		    "pthread_mutex_unlock() failed on %s:%d: %s\n",	\
73 		    __FILE__, __LINE__, strerror(err));			\
74 		abort();						\
75 	}								\
76 }
77 
78 #else
79 
80 #define	MUTEX_LOCK(mp)		(void) pthread_mutex_lock((mp))
81 #define	MUTEX_UNLOCK(mp)	(void) pthread_mutex_unlock((mp))
82 
83 #endif
84 
85 #define	bad_error(func, err)					\
86 	uu_panic("%s:%d: %s() failed with unexpected "		\
87 	    "error %d.  Aborting.\n", __FILE__, __LINE__, (func), (err));
88 
89 #define	min(a, b)	(((a) < (b)) ? (a) : (b))
90 
91 #define	FAULT_COUNT_INCR	0
92 #define	FAULT_COUNT_RESET	1
93 
94 #define	FAULT_THRESHOLD		3
95 
96 #define	MAX_CONFIGD_RETRIES	5
97 #define	MAX_EMI_RETRIES		5
98 #define	MAX_MOUNT_RETRIES	5
99 #define	MAX_SULOGIN_RETRIES	5
100 
101 #define	RETURN_SUCCESS		0
102 #define	RETURN_RETRY		-1
103 #define	RETURN_FATAL		-2
104 
105 #define	LIBSCF_SUCCESS		0
106 #define	LIBSCF_PROPERTY_ABSENT	-1
107 #define	LIBSCF_PGROUP_ABSENT	-2
108 #define	LIBSCF_PROPERTY_ERROR	-3
109 
110 #define	METHOD_START		0
111 #define	METHOD_STOP		1
112 #define	METHOD_REFRESH		2
113 
114 #define	METHOD_TIMEOUT_INFINITE	0
115 
116 /*
117  * Contract cookies used by startd.
118  */
119 #define	CONFIGD_COOKIE		0x10
120 #define	SULOGIN_COOKIE		0x11
121 #define	METHOD_START_COOKIE	0x20
122 #define	METHOD_OTHER_COOKIE	0x21
123 #define	MONITOR_COOKIE		0x30
124 #define	EMI_COOKIE		0x31
125 
126 
127 #define	ALLOC_RETRY		3
128 #define	ALLOC_DELAY		10
129 #define	ALLOC_DELAY_MULT	10
130 
131 #define	safe_scf_scope_create(h)	\
132 	libscf_object_create((void *(*)(scf_handle_t *))scf_scope_create, (h))
133 #define	safe_scf_service_create(h)	\
134 	libscf_object_create((void *(*)(scf_handle_t *))scf_service_create, (h))
135 #define	safe_scf_instance_create(h)	libscf_object_create(	\
136 	(void *(*)(scf_handle_t *))scf_instance_create, (h))
137 #define	safe_scf_snapshot_create(h)	libscf_object_create(	\
138 	(void *(*)(scf_handle_t *))scf_snapshot_create, (h))
139 #define	safe_scf_snaplevel_create(h)	libscf_object_create(	\
140 	(void *(*)(scf_handle_t *))scf_snaplevel_create, (h))
141 #define	safe_scf_pg_create(h)		\
142 	libscf_object_create((void *(*)(scf_handle_t *))scf_pg_create, (h))
143 #define	safe_scf_property_create(h)	libscf_object_create(	\
144 	(void *(*)(scf_handle_t *))scf_property_create, (h))
145 #define	safe_scf_value_create(h)	\
146 	libscf_object_create((void *(*)(scf_handle_t *))scf_value_create, (h))
147 #define	safe_scf_iter_create(h)		\
148 	libscf_object_create((void *(*)(scf_handle_t *))scf_iter_create, (h))
149 #define	safe_scf_transaction_create(h)	libscf_object_create(	\
150 	(void *(*)(scf_handle_t *))	scf_transaction_create, (h))
151 #define	safe_scf_entry_create(h)	\
152 	libscf_object_create((void *(*)(scf_handle_t *))scf_entry_create, (h))
153 
154 #define	startd_alloc(sz)	\
155 	startd_alloc_retry((void *(*)(size_t, int))umem_alloc, (sz))
156 #define	startd_zalloc(sz)	\
157 	startd_alloc_retry((void *(*)(size_t, int))umem_zalloc, (sz))
158 
159 
160 extern pthread_mutexattr_t mutex_attrs;
161 
162 /*
163  * Definitions for administrative actions.
164  *   Note that the ordering in admin_action_t, admin_actions, and admin_events
165  *   must match.  admin_actions and admin_events are defined in startd.c.
166  */
167 #define	NACTIONS			6
168 
169 typedef enum {
170 	ADMIN_EVENT_DEGRADED = 0x0,
171 	ADMIN_EVENT_MAINT_OFF,
172 	ADMIN_EVENT_MAINT_ON,
173 	ADMIN_EVENT_MAINT_ON_IMMEDIATE,
174 	ADMIN_EVENT_REFRESH,
175 	ADMIN_EVENT_RESTART
176 } admin_action_t;
177 
178 extern const char * const admin_actions[NACTIONS];
179 extern const int admin_events[NACTIONS];
180 
181 #define	LOG_DATE_SIZE	32	/* Max size of timestamp in log output */
182 
183 extern ssize_t max_scf_name_size;
184 extern ssize_t max_scf_value_size;
185 extern ssize_t max_scf_fmri_size;
186 
187 extern mode_t fmask;
188 extern mode_t dmask;
189 
190 #define	LOG_PREFIX_EARLY	"/etc/svc/volatile/"
191 #define	LOG_PREFIX_NORMAL	"/var/svc/log/"
192 
193 #define	LOG_SUFFIX		".log"
194 
195 #define	STARTD_DEFAULT_LOG	"svc.startd.log"
196 #define	EMI_LOG ((const char *) "system-early-manifest-import:default.log")
197 
198 extern const char *log_directory;	/* Current log directory path */
199 
200 #define	FS_TIMEZONE_DIR		"/usr/share/lib/zoneinfo"
201 #define	FS_LOCALE_DIR		"/usr/lib/locale"
202 
203 /*
204  * Simple dictionary representation.
205  */
206 typedef struct dictionary {
207 	uu_list_t		*dict_list;
208 	int			dict_new_id;
209 	pthread_mutex_t		dict_lock;
210 } dictionary_t;
211 
212 typedef struct dict_entry {
213 	int			de_id;
214 	const char		*de_name;
215 	uu_list_node_t		de_link;
216 } dict_entry_t;
217 
218 extern dictionary_t *dictionary;
219 
220 typedef struct timeout_queue {
221 	uu_list_t		*tq_list;
222 	pthread_mutex_t		tq_lock;
223 } timeout_queue_t;
224 
225 typedef struct timeout_entry {
226 	hrtime_t		te_timeout;	/* timeout expiration time */
227 	ctid_t			te_ctid;
228 	char			*te_fmri;
229 	char			*te_logstem;
230 	volatile int		te_fired;
231 	uu_list_node_t		te_link;
232 } timeout_entry_t;
233 
234 extern timeout_queue_t *timeouts;
235 
236 /*
237  * State definitions.
238  */
239 typedef enum {
240 	STATE_NONE = 0x0,
241 	STATE_UNINIT,
242 	STATE_MAINT,
243 	STATE_OFFLINE,
244 	STATE_DISABLED,
245 	STATE_ONLINE,
246 	STATE_DEGRADED
247 } instance_state_t;
248 
249 #define	STATE_MAX	(STATE_DEGRADED + 1)
250 
251 extern const char * const instance_state_str[STATE_MAX];
252 
253 typedef enum {
254 	GVT_UNSUPPORTED = -1,
255 	GVT_UNKNOWN = 0,
256 	GVT_SVC,		/* service */
257 	GVT_INST,		/* instance */
258 	GVT_FILE,		/* file: */
259 	GVT_GROUP		/* dependency group */
260 } gv_type_t;
261 
262 typedef enum {
263 	DEPGRP_UNSUPPORTED = -1,
264 	DEPGRP_REQUIRE_ANY = 1,
265 	DEPGRP_REQUIRE_ALL,
266 	DEPGRP_EXCLUDE_ALL,
267 	DEPGRP_OPTIONAL_ALL
268 } depgroup_type_t;
269 
270 typedef enum {
271 	METHOD_RESTART_UNKNOWN = -1,
272 	METHOD_RESTART_ALL = 0,
273 	METHOD_RESTART_EXTERNAL_FAULT,
274 	METHOD_RESTART_ANY_FAULT,
275 	METHOD_RESTART_OTHER
276 } method_restart_t;
277 
278 typedef enum {
279 	PROPAGATE_START,
280 	PROPAGATE_STOP,
281 	PROPAGATE_SAT
282 } propagate_event_t;
283 
284 /*
285  * Graph representation.
286  */
287 #define	GV_CONFIGURED	0x01	/* Service exists in repository, ready */
288 #define	GV_ENABLED	0x02	/* Service should be online */
289 #define	GV_ENBLD_NOOVR	0x04	/* GV_ENABLED, ignoring override */
290 #define	GV_INSUBGRAPH	0x08	/* Current milestone depends on service */
291 #define	GV_DEATHROW	0x10	/* Service is on deathrow */
292 #define	GV_TOOFFLINE	0x20	/* Services in subtree to offline */
293 #define	GV_TODISABLE	0x40	/* Services in subtree to disable */
294 
295 /* ID must come first to support search */
296 typedef struct graph_vertex {
297 	int				gv_id;
298 	char				*gv_name;
299 	uu_list_node_t			gv_link;
300 
301 	uint_t				gv_flags;
302 	restarter_instance_state_t	gv_state;
303 
304 	gv_type_t			gv_type;
305 
306 	depgroup_type_t			gv_depgroup;
307 	restarter_error_t		gv_restart;
308 
309 	void				(*gv_start_f)(struct graph_vertex *);
310 	void				(*gv_post_online_f)(void);
311 	void				(*gv_post_disable_f)(void);
312 
313 	int				gv_restarter_id;
314 	evchan_t			*gv_restarter_channel;
315 
316 	int				gv_delegate_initialized;
317 	evchan_t			*gv_delegate_channel;
318 
319 	uu_list_t			*gv_dependencies;
320 	uu_list_t			*gv_dependents;
321 
322 	/*
323 	 * gv_refs represents the number of references besides dependencies.
324 	 * The vertex cannot be removed when gv_refs > 0.
325 	 *
326 	 * Currently, only relevant for GVT_SVC and GVT_INST type vertices.
327 	 */
328 	int				gv_refs;
329 
330 	int32_t				gv_stn_tset;
331 	int32_t				gv_reason;
332 } graph_vertex_t;
333 
334 typedef struct graph_edge {
335 	graph_vertex_t	*ge_vertex;
336 	uu_list_node_t	ge_link;
337 	graph_vertex_t	*ge_parent;
338 } graph_edge_t;
339 
340 int libscf_get_info_events_all(scf_propertygroup_t *);
341 int32_t libscf_get_stn_tset(scf_instance_t *);
342 
343 /*
344  * Restarter transition outcomes
345  */
346 typedef enum {
347 	MAINT_REQUESTED,
348 	START_REQUESTED,
349 	START_FAILED_REPEATEDLY,
350 	START_FAILED_CONFIGURATION,
351 	START_FAILED_FATAL,
352 	START_FAILED_TIMEOUT_FATAL,
353 	START_FAILED_OTHER
354 } start_outcome_t;
355 
356 typedef void (*instance_hook_t)(void);
357 
358 typedef struct service_hook_assn {
359 	char	*sh_fmri;
360 	instance_hook_t	sh_pre_online_hook;
361 	instance_hook_t	sh_post_online_hook;
362 	instance_hook_t	sh_post_offline_hook;
363 } service_hook_assn_t;
364 
365 /*
366  * Restarter instance stop reasons.
367  */
368 typedef enum {
369 	RSTOP_EXIT = 0x0,	/* exited or empty */
370 	RSTOP_CORE,		/* core dumped */
371 	RSTOP_SIGNAL,		/* external fatal signal received */
372 	RSTOP_HWERR,		/* uncorrectable hardware error */
373 	RSTOP_DEPENDENCY,	/* dependency activity caused stop */
374 	RSTOP_DISABLE,		/* disabled */
375 	RSTOP_RESTART,		/* restart requested */
376 	RSTOP_ERR_CFG,		/* wait svc exited with a config. error */
377 	RSTOP_ERR_EXIT		/* wait svc exited with an error */
378 } stop_cause_t;
379 
380 /*
381  * Restarter instance maintenance clear reasons.
382  */
383 typedef enum {
384 	RUNMAINT_CLEAR = 0x0,
385 	RUNMAINT_DISABLE
386 } unmaint_cause_t;
387 
388 /*
389  * Restarter instance flags
390  */
391 #define	RINST_CONTRACT		0x00000000	/* progeny constitute inst */
392 #define	RINST_TRANSIENT		0x10000000	/* inst operates momentarily */
393 #define	RINST_WAIT		0x20000000	/* child constitutes inst */
394 #define	RINST_STYLE_MASK	0xf0000000
395 
396 #define	RINST_RETAKE_RUNNING	0x01000000	/* pending running snapshot */
397 #define	RINST_RETAKE_START	0x02000000	/* pending start snapshot */
398 
399 #define	RINST_RETAKE_MASK	0x0f000000
400 
401 #define	RINST_START_TIMES	5		/* failures to consider */
402 #define	RINST_FAILURE_RATE_NS	600000000000LL	/* 1 failure/10 minutes */
403 #define	RINST_WT_SVC_FAILURE_RATE_NS	NANOSEC	/* 1 failure/second */
404 
405 /* Number of events in the queue when we start dropping ADMIN events. */
406 #define	RINST_QUEUE_THRESHOLD	100
407 
408 typedef struct restarter_inst {
409 	int			ri_id;
410 	instance_data_t		ri_i;
411 	char			*ri_common_name; /* template localized name */
412 	char			*ri_C_common_name; /* C locale name */
413 
414 	char			*ri_logstem;	/* logfile name */
415 	char			*ri_utmpx_prefix;
416 	uint_t			ri_flags;
417 	instance_hook_t		ri_pre_online_hook;
418 	instance_hook_t		ri_post_online_hook;
419 	instance_hook_t		ri_post_offline_hook;
420 
421 	hrtime_t		ri_start_time[RINST_START_TIMES];
422 	uint_t			ri_start_index;	/* times started */
423 
424 	uu_list_node_t		ri_link;
425 	pthread_mutex_t		ri_lock;
426 
427 	/*
428 	 * When we start a thread to we execute a method for this instance, we
429 	 * put the thread id in ri_method_thread.  Threads with ids other than
430 	 * this which acquire ri_lock while ri_method_thread is nonzero should
431 	 * wait on ri_method_cv.  ri_method_waiters should be incremented while
432 	 * waiting so the instance won't be deleted.
433 	 */
434 	pthread_t		ri_method_thread;
435 	pthread_cond_t		ri_method_cv;
436 	uint_t			ri_method_waiters;
437 
438 	/*
439 	 * These fields are provided so functions can operate on this structure
440 	 * and the repository without worrying about whether the instance has
441 	 * been deleted from the repository (this is possible because
442 	 * ri_i.i_fmri names the instance this structure represents -- see
443 	 * libscf_reget_inst()).  ri_m_inst is the scf_instance_t for the
444 	 * instance, and ri_mi_deleted is true if the instance has been deleted.
445 	 */
446 	scf_instance_t		*ri_m_inst;
447 	boolean_t		ri_mi_deleted;
448 
449 	/*
450 	 * We maintain a pointer to any pending timeout for this instance
451 	 * for quick reference/deletion.
452 	 */
453 	timeout_entry_t		*ri_timeout;
454 
455 	/*
456 	 * Instance event queue.  Graph events are queued here as a list
457 	 * of restarter_instance_qentry_t's, and the lock is held separately.
458 	 * If both ri_lock and ri_queue_lock are grabbed, ri_lock must be
459 	 * grabbed first.  ri_queue_lock protects all ri_queue_* structure
460 	 * members.
461 	 */
462 	pthread_mutex_t		ri_queue_lock;
463 	pthread_cond_t		ri_queue_cv;
464 	uu_list_t		*ri_queue;
465 	int			ri_queue_thread;
466 
467 } restarter_inst_t;
468 
469 typedef struct restarter_instance_list {
470 	uu_list_t		*ril_instance_list;
471 	pthread_mutex_t		ril_lock;
472 } restarter_instance_list_t;
473 
474 typedef struct restarter_instance_qentry {
475 	restarter_event_type_t	riq_type;
476 	int32_t			riq_reason;
477 	uu_list_node_t		riq_link;
478 } restarter_instance_qentry_t;
479 
480 typedef struct fork_info {
481 	int			sf_id;
482 	int			sf_method_type;
483 	restarter_error_t	sf_event_type;
484 	restarter_str_t		sf_reason;
485 } fork_info_t;
486 
487 typedef struct wait_info {
488 	uu_list_node_t		wi_link;
489 
490 	int			wi_fd;		/* psinfo file descriptor */
491 	id_t			wi_pid;		/* process ID */
492 	const char		*wi_fmri;	/* instance FMRI */
493 	int			wi_parent;	/* startd is parent */
494 	int			wi_ignore;	/* ignore events */
495 } wait_info_t;
496 
497 #define	STARTD_LOG_FILE		0x1
498 #define	STARTD_LOG_TERMINAL	0x2
499 #define	STARTD_LOG_SYSLOG	0x4
500 
501 #define	STARTD_BOOT_QUIET	0x1
502 #define	STARTD_BOOT_VERBOSE	0x2
503 
504 /*
505  * Internal debug flags used to reduce the amount of data sent to the
506  * internal debug buffer. They can be turned on & off dynamically using
507  * internal_debug_flags variable in mdb. By default, they're off.
508  */
509 #define	DEBUG_DEPENDENCIES	0x1
510 
511 typedef struct startd_state {
512 	/* Logging configuration */
513 	char		*st_log_prefix;	/* directory prefix */
514 	char		*st_log_file;	/* startd file in above dir */
515 	uint_t		st_log_flags;	/* message destination */
516 	int		st_log_level_min; /* minimum required to log */
517 	int		st_log_timezone_known; /* timezone is available */
518 	int		st_log_locale_known; /* locale is available */
519 	int		st_log_login_reached; /* login service reached */
520 
521 	/* Boot configuration */
522 	uint_t		st_boot_flags;	/* serial boot, etc. */
523 	uint_t		st_initial;	/* first startd on system */
524 
525 	/* System configuration */
526 	char		*st_subgraph;	/* milestone subgraph request */
527 
528 	uint_t		st_load_complete;  /* graph load completed */
529 	uint_t		st_load_instances; /* restarter instances to load */
530 	pthread_mutex_t	st_load_lock;
531 	pthread_cond_t	st_load_cv;
532 
533 	/* Repository configuration */
534 	pid_t		st_configd_pid;	/* PID of our svc.configd */
535 					/* instance */
536 	int		st_configd_lives; /* configd started */
537 	pthread_mutex_t	st_configd_live_lock;
538 	pthread_cond_t	st_configd_live_cv;
539 
540 	char		*st_door_path;
541 
542 	/* General information */
543 	uint_t		st_flags;
544 	struct timeval	st_start_time;	/* effective system start time */
545 	char		*st_locale;
546 } startd_state_t;
547 
548 extern startd_state_t *st;
549 
550 extern boolean_t booting_to_single_user;
551 
552 extern const char *event_names[];
553 
554 /*
555  * Structures for contract to instance hash table, implemented in
556  * contract.c and used by restarter.c and method.c
557  */
558 typedef struct contract_entry {
559 	ctid_t		ce_ctid;
560 	int		ce_instid;
561 
562 	uu_list_node_t	ce_link;
563 } contract_entry_t;
564 
565 extern volatile uint16_t	storing_contract;
566 
567 extern uu_list_pool_t *contract_list_pool;
568 
569 /* contract.c */
570 ctid_t contract_init(void);
571 void contract_abandon(ctid_t);
572 int contract_kill(ctid_t, int, const char *);
573 int contract_is_empty(ctid_t);
574 void contract_hash_init();
575 void contract_hash_store(ctid_t, int);
576 void contract_hash_remove(ctid_t);
577 int lookup_inst_by_contract(ctid_t);
578 
579 /* dict.c */
580 void dict_init(void);
581 int dict_lookup_byname(const char *);
582 int dict_insert(const char *);
583 
584 /* expand.c */
585 int expand_method_tokens(const char *, scf_instance_t *,
586     scf_snapshot_t *, int, char **);
587 
588 /* env.c */
589 void init_env(void);
590 char **set_smf_env(char **, size_t, const char *,
591     const restarter_inst_t *, const char *);
592 
593 /* file.c */
594 int file_ready(graph_vertex_t *);
595 
596 /* fork.c */
597 int fork_mount(char *, char *);
598 void fork_sulogin(boolean_t, const char *, ...);
599 void fork_rc_script(char, const char *, boolean_t);
600 
601 void *fork_configd_thread(void *);
602 
603 pid_t startd_fork1(int *);
604 void fork_with_timeout(const char *, uint_t, uint_t);
605 void fork_emi();
606 
607 /* graph.c */
608 void graph_init(void);
609 void *single_user_thread(void *);
610 void *graph_thread(void *);
611 void *graph_event_thread(void *);
612 void *repository_event_thread(void *);
613 int dgraph_add_instance(const char *, scf_instance_t *, boolean_t);
614 void graph_engine_start(void);
615 void graph_enable_by_vertex(graph_vertex_t *, int, int);
616 int refresh_vertex(graph_vertex_t *, scf_instance_t *);
617 void vertex_send_event(graph_vertex_t *, restarter_event_type_t);
618 void graph_start_if_satisfied(graph_vertex_t *);
619 int vertex_subgraph_dependencies_shutdown(scf_handle_t *, graph_vertex_t *,
620     restarter_instance_state_t);
621 void graph_transition_sulogin(restarter_instance_state_t,
622     restarter_instance_state_t);
623 void graph_transition_propagate(graph_vertex_t *, propagate_event_t,
624     restarter_error_t);
625 void graph_offline_subtree_leaves(graph_vertex_t *, void *);
626 void offline_vertex(graph_vertex_t *);
627 
628 /* libscf.c - common */
629 char *inst_fmri_to_svc_fmri(const char *);
630 void *libscf_object_create(void *(*)(scf_handle_t *), scf_handle_t *);
631 int libscf_instance_get_fmri(scf_instance_t *, char **);
632 int libscf_fmri_get_instance(scf_handle_t *, const char *, scf_instance_t **);
633 int libscf_lookup_instance(const char *, scf_instance_t *);
634 int libscf_set_reconfig(int);
635 scf_snapshot_t *libscf_get_or_make_running_snapshot(scf_instance_t *,
636     const char *, boolean_t);
637 int libscf_inst_set_count_prop(scf_instance_t *, const char *,
638     const char *pgtype, uint32_t, const char *, uint64_t);
639 
640 /* libscf.c - used by graph.c */
641 int libscf_get_deathrow(scf_handle_t *, scf_instance_t *, int *);
642 int libscf_get_basic_instance_data(scf_handle_t *, scf_instance_t *,
643     const char *, int *, int *, char **);
644 int libscf_inst_get_or_add_pg(scf_instance_t *, const char *, const char *,
645     uint32_t, scf_propertygroup_t *);
646 int libscf_read_states(const scf_propertygroup_t *,
647     restarter_instance_state_t *, restarter_instance_state_t *);
648 int depgroup_empty(scf_handle_t *, scf_propertygroup_t *);
649 gv_type_t depgroup_read_scheme(scf_handle_t *, scf_propertygroup_t *);
650 depgroup_type_t depgroup_read_grouping(scf_handle_t *, scf_propertygroup_t *);
651 restarter_error_t depgroup_read_restart(scf_handle_t *, scf_propertygroup_t *);
652 int libscf_set_enable_ovr(scf_instance_t *, int);
653 int libscf_set_deathrow(scf_instance_t *, int);
654 int libscf_delete_enable_ovr(scf_instance_t *);
655 int libscf_get_milestone(scf_instance_t *, scf_property_t *, scf_value_t *,
656     char *, size_t);
657 int libscf_extract_runlevel(scf_property_t *, char *);
658 int libscf_clear_runlevel(scf_propertygroup_t *, const char *milestone);
659 
660 typedef int (*callback_t)(void *, void *);
661 
662 int walk_dependency_pgs(scf_instance_t *, callback_t, void *);
663 int walk_property_astrings(scf_property_t *, callback_t, void *);
664 void libscf_reset_start_times(restarter_inst_t *, int);
665 
666 /* libscf.c - used by restarter.c/method.c/expand.c */
667 char *libscf_get_method(scf_handle_t *, int, restarter_inst_t *,
668     scf_snapshot_t *, method_restart_t *, uint_t *, uint8_t *, uint64_t *,
669     uint8_t *);
670 void libscf_populate_graph(scf_handle_t *h);
671 int update_fault_count(restarter_inst_t *, int);
672 int libscf_unset_action(scf_handle_t *, scf_propertygroup_t *, admin_action_t,
673     int64_t);
674 int libscf_get_startd_properties(scf_instance_t *, scf_snapshot_t *, uint_t *,
675     char **);
676 int libscf_get_template_values(scf_instance_t *, scf_snapshot_t *, char **,
677     char **);
678 
679 int libscf_read_method_ids(scf_handle_t *, scf_instance_t *, const char *,
680     ctid_t *, ctid_t *, pid_t *);
681 int libscf_write_start_pid(scf_instance_t *, pid_t);
682 int libscf_write_method_status(scf_instance_t *, const char *, int);
683 int libscf_note_method_log(scf_instance_t *, const char *, const char *);
684 
685 scf_handle_t *libscf_handle_create_bound(scf_version_t);
686 void libscf_handle_rebind(scf_handle_t *);
687 scf_handle_t *libscf_handle_create_bound_loop(void);
688 
689 scf_snapshot_t *libscf_get_running_snapshot(scf_instance_t *);
690 int libscf_snapshots_poststart(scf_handle_t *, const char *, boolean_t);
691 int libscf_snapshots_refresh(scf_instance_t *, const char *);
692 
693 int instance_is_transient_style(restarter_inst_t *);
694 int instance_is_wait_style(restarter_inst_t *);
695 
696 int libscf_create_self(scf_handle_t *);
697 
698 void libscf_reget_instance(restarter_inst_t *);
699 
700 /* log.c */
701 void log_init();
702 void log_error(int, const char *, ...);
703 void log_framework(int, const char *, ...);
704 void log_framework2(int, int, const char *, ...);
705 void log_console(int, const char *, ...);
706 void log_preexec(void);
707 void setlog(const char *);
708 void log_transition(const restarter_inst_t *, start_outcome_t);
709 void log_instance(const restarter_inst_t *, boolean_t, const char *, ...);
710 void log_instance_fmri(const char *, const char *, boolean_t,
711     const char *, ...);
712 
713 /* method.c */
714 void *method_thread(void *);
715 void method_remove_contract(restarter_inst_t *, boolean_t, boolean_t);
716 int method_rate_critical(restarter_inst_t *);
717 
718 /* misc.c */
719 void startd_close(int);
720 void startd_fclose(FILE *);
721 int fmri_canonify(const char *, char **, boolean_t);
722 int fs_is_read_only(char *, ulong_t *);
723 int fs_remount(char *);
724 void xstr_sanitize(char *);
725 
726 /* restarter.c */
727 void restarter_init(void);
728 void restarter_start(void);
729 int instance_in_transition(restarter_inst_t *);
730 int restarter_instance_update_states(scf_handle_t *, restarter_inst_t *,
731     restarter_instance_state_t, restarter_instance_state_t, restarter_error_t,
732     restarter_str_t);
733 int stop_instance_fmri(scf_handle_t *, const char *, uint_t);
734 restarter_inst_t *inst_lookup_by_id(int);
735 void restarter_mark_pending_snapshot(const char *, uint_t);
736 void *restarter_post_fsminimal_thread(void *);
737 void timeout_insert(restarter_inst_t *, ctid_t, uint64_t);
738 void timeout_remove(restarter_inst_t *, ctid_t);
739 void timeout_init(void);
740 int is_timeout_ovr(restarter_inst_t *);
741 
742 /* startd.c */
743 void *safe_realloc(void *, size_t);
744 char *safe_strdup(const char *s);
745 void *startd_alloc_retry(void *(*)(size_t, int), size_t);
746 void startd_free(void *, size_t);
747 uu_list_pool_t *startd_list_pool_create(const char *, size_t, size_t,
748     uu_compare_fn_t *, uint32_t);
749 uu_list_t *startd_list_create(uu_list_pool_t *, void *, uint32_t);
750 pthread_t startd_thread_create(void *(*)(void *), void *);
751 
752 /* special.c */
753 void special_null_transition(void);
754 void special_online_hooks_get(const char *, instance_hook_t *,
755     instance_hook_t *, instance_hook_t *);
756 
757 /* transition.c */
758 int gt_transition(scf_handle_t *, graph_vertex_t *, restarter_error_t,
759     restarter_instance_state_t);
760 
761 /* utmpx.c */
762 void utmpx_init(void);
763 void utmpx_clear_old(void);
764 int utmpx_mark_init(pid_t, char *);
765 void utmpx_mark_dead(pid_t, int, boolean_t);
766 char utmpx_get_runlevel(void);
767 void utmpx_set_runlevel(char, char, boolean_t);
768 void utmpx_write_boottime(void);
769 void utmpx_prefork(void);
770 void utmpx_postfork(void);
771 
772 /* wait.c */
773 void wait_init(void);
774 void wait_prefork(void);
775 void wait_postfork(pid_t);
776 int wait_register(pid_t, const char *, int, int);
777 void *wait_thread(void *);
778 void wait_ignore_by_fmri(const char *);
779 
780 /* proc.c */
781 ctid_t proc_get_ctid();
782 
783 /* deathrow.c */
784 extern void deathrow_init();
785 extern void deathrow_fini();
786 extern boolean_t is_fmri_in_deathrow(const char *);
787 
788 #ifdef	__cplusplus
789 }
790 #endif
791 
792 #endif	/* _STARTD_H */
793