xref: /illumos-gate/usr/src/cmd/svc/startd/startd.h (revision e0731422366620894c16c1ee6515551c5f00733d)
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  */
25 
26 #ifndef	_STARTD_H
27 #define	_STARTD_H
28 
29 #include <sys/time.h>
30 #include <librestart.h>
31 #include <librestart_priv.h>
32 #include <libscf.h>
33 #include <libsysevent.h>
34 #include <libuutil.h>
35 #include <pthread.h>
36 #include <synch.h>
37 #include <stdio.h>
38 #include <syslog.h>
39 #include <umem.h>
40 
41 #ifdef	__cplusplus
42 extern "C" {
43 #endif
44 
45 /*
46  * We want MUTEX_HELD, but we also want pthreads.  So we're stuck with this
47  * for the native build, at least until the build machines can catch up
48  * with the latest version of MUTEX_HELD() in <synch.h>.
49  */
50 #if defined(NATIVE_BUILD)
51 #undef	MUTEX_HELD
52 #define	MUTEX_HELD(m)		_mutex_held((mutex_t *)(m))
53 #endif
54 
55 #ifndef NDEBUG
56 
57 #define	MUTEX_LOCK(mp)	{						\
58 	int err;							\
59 	if ((err = pthread_mutex_lock((mp))) != 0) {			\
60 		(void) fprintf(stderr,					\
61 		    "pthread_mutex_lock() failed on %s:%d: %s\n",	\
62 		    __FILE__, __LINE__, strerror(err));			\
63 		abort();						\
64 	}								\
65 }
66 
67 #define	MUTEX_UNLOCK(mp)	{					\
68 	int err;							\
69 	if ((err = pthread_mutex_unlock((mp))) != 0) {			\
70 		(void) fprintf(stderr,					\
71 		    "pthread_mutex_unlock() failed on %s:%d: %s\n",	\
72 		    __FILE__, __LINE__, strerror(err));			\
73 		abort();						\
74 	}								\
75 }
76 
77 #else
78 
79 #define	MUTEX_LOCK(mp)		(void) pthread_mutex_lock((mp))
80 #define	MUTEX_UNLOCK(mp)	(void) pthread_mutex_unlock((mp))
81 
82 #endif
83 
84 #ifndef NDEBUG
85 #define	bad_error(func, err)	{					\
86 	(void) fprintf(stderr, "%s:%d: %s() failed with unexpected "	\
87 	    "error %d.  Aborting.\n", __FILE__, __LINE__, (func), (err)); \
88 	abort();							\
89 }
90 #else
91 #define	bad_error(func, err)	abort()
92 #endif
93 
94 
95 #define	min(a, b)	(((a) < (b)) ? (a) : (b))
96 
97 #define	FAULT_COUNT_INCR	0
98 #define	FAULT_COUNT_RESET	1
99 
100 #define	FAULT_THRESHOLD		3
101 
102 #define	MAX_CONFIGD_RETRIES	5
103 #define	MAX_EMI_RETRIES		5
104 #define	MAX_MOUNT_RETRIES	5
105 #define	MAX_SULOGIN_RETRIES	5
106 
107 #define	RETURN_SUCCESS		0
108 #define	RETURN_RETRY		-1
109 #define	RETURN_FATAL		-2
110 
111 #define	LIBSCF_SUCCESS		0
112 #define	LIBSCF_PROPERTY_ABSENT	-1
113 #define	LIBSCF_PGROUP_ABSENT	-2
114 #define	LIBSCF_PROPERTY_ERROR	-3
115 
116 #define	METHOD_START		0
117 #define	METHOD_STOP		1
118 #define	METHOD_REFRESH		2
119 
120 #define	METHOD_TIMEOUT_INFINITE	0
121 
122 /*
123  * Contract cookies used by startd.
124  */
125 #define	CONFIGD_COOKIE		0x10
126 #define	SULOGIN_COOKIE		0x11
127 #define	METHOD_START_COOKIE	0x20
128 #define	METHOD_OTHER_COOKIE	0x21
129 #define	MONITOR_COOKIE		0x30
130 #define	EMI_COOKIE		0x31
131 
132 
133 #define	ALLOC_RETRY		3
134 #define	ALLOC_DELAY		10
135 #define	ALLOC_DELAY_MULT	10
136 
137 #define	safe_scf_scope_create(h)	\
138 	libscf_object_create((void *(*)(scf_handle_t *))scf_scope_create, (h))
139 #define	safe_scf_service_create(h)	\
140 	libscf_object_create((void *(*)(scf_handle_t *))scf_service_create, (h))
141 #define	safe_scf_instance_create(h)	libscf_object_create(	\
142 	(void *(*)(scf_handle_t *))scf_instance_create, (h))
143 #define	safe_scf_snapshot_create(h)	libscf_object_create(	\
144 	(void *(*)(scf_handle_t *))scf_snapshot_create, (h))
145 #define	safe_scf_snaplevel_create(h)	libscf_object_create(	\
146 	(void *(*)(scf_handle_t *))scf_snaplevel_create, (h))
147 #define	safe_scf_pg_create(h)		\
148 	libscf_object_create((void *(*)(scf_handle_t *))scf_pg_create, (h))
149 #define	safe_scf_property_create(h)	libscf_object_create(	\
150 	(void *(*)(scf_handle_t *))scf_property_create, (h))
151 #define	safe_scf_value_create(h)	\
152 	libscf_object_create((void *(*)(scf_handle_t *))scf_value_create, (h))
153 #define	safe_scf_iter_create(h)		\
154 	libscf_object_create((void *(*)(scf_handle_t *))scf_iter_create, (h))
155 #define	safe_scf_transaction_create(h)	libscf_object_create(	\
156 	(void *(*)(scf_handle_t *))	scf_transaction_create, (h))
157 #define	safe_scf_entry_create(h)	\
158 	libscf_object_create((void *(*)(scf_handle_t *))scf_entry_create, (h))
159 
160 #define	startd_alloc(sz)	\
161 	startd_alloc_retry((void *(*)(size_t, int))umem_alloc, (sz))
162 #define	startd_zalloc(sz)	\
163 	startd_alloc_retry((void *(*)(size_t, int))umem_zalloc, (sz))
164 
165 
166 extern pthread_mutexattr_t mutex_attrs;
167 
168 /*
169  * Definitions for administrative actions.
170  *   Note that the ordering in admin_action_t, admin_actions, and admin_events
171  *   must match.  admin_actions and admin_events are defined in startd.c.
172  */
173 #define	NACTIONS			6
174 
175 typedef enum {
176 	ADMIN_EVENT_DEGRADED = 0x0,
177 	ADMIN_EVENT_MAINT_OFF,
178 	ADMIN_EVENT_MAINT_ON,
179 	ADMIN_EVENT_MAINT_ON_IMMEDIATE,
180 	ADMIN_EVENT_REFRESH,
181 	ADMIN_EVENT_RESTART
182 } admin_action_t;
183 
184 extern const char * const admin_actions[NACTIONS];
185 extern const int admin_events[NACTIONS];
186 
187 #define	LOG_DATE_SIZE	32	/* Max size of timestamp in log output */
188 
189 extern ssize_t max_scf_name_size;
190 extern ssize_t max_scf_value_size;
191 extern ssize_t max_scf_fmri_size;
192 
193 extern mode_t fmask;
194 extern mode_t dmask;
195 
196 #define	LOG_PREFIX_EARLY	"/etc/svc/volatile/"
197 #define	LOG_PREFIX_NORMAL	"/var/svc/log/"
198 
199 #define	LOG_SUFFIX		".log"
200 
201 #define	STARTD_DEFAULT_LOG	"svc.startd.log"
202 #define	EMI_LOG ((const char *) "system-early-manifest-import:default.log")
203 
204 extern const char *log_directory;	/* Current log directory path */
205 
206 #define	FS_TIMEZONE_DIR		"/usr/share/lib/zoneinfo"
207 #define	FS_LOCALE_DIR		"/usr/lib/locale"
208 
209 /*
210  * Simple dictionary representation.
211  */
212 typedef struct dictionary {
213 	uu_list_t		*dict_list;
214 	int			dict_new_id;
215 	pthread_mutex_t		dict_lock;
216 } dictionary_t;
217 
218 typedef struct dict_entry {
219 	int			de_id;
220 	const char		*de_name;
221 	uu_list_node_t		de_link;
222 } dict_entry_t;
223 
224 extern dictionary_t *dictionary;
225 
226 typedef struct timeout_queue {
227 	uu_list_t		*tq_list;
228 	pthread_mutex_t		tq_lock;
229 } timeout_queue_t;
230 
231 typedef struct timeout_entry {
232 	hrtime_t		te_timeout;	/* timeout expiration time */
233 	ctid_t			te_ctid;
234 	char			*te_fmri;
235 	char			*te_logstem;
236 	volatile int		te_fired;
237 	uu_list_node_t		te_link;
238 } timeout_entry_t;
239 
240 extern timeout_queue_t *timeouts;
241 
242 /*
243  * State definitions.
244  */
245 typedef enum {
246 	STATE_NONE = 0x0,
247 	STATE_UNINIT,
248 	STATE_MAINT,
249 	STATE_OFFLINE,
250 	STATE_DISABLED,
251 	STATE_ONLINE,
252 	STATE_DEGRADED
253 } instance_state_t;
254 
255 #define	STATE_MAX	(STATE_DEGRADED + 1)
256 
257 extern const char * const instance_state_str[STATE_MAX];
258 
259 typedef enum {
260 	GVT_UNSUPPORTED = -1,
261 	GVT_UNKNOWN = 0,
262 	GVT_SVC,		/* service */
263 	GVT_INST,		/* instance */
264 	GVT_FILE,		/* file: */
265 	GVT_GROUP		/* dependency group */
266 } gv_type_t;
267 
268 typedef enum {
269 	DEPGRP_UNSUPPORTED = -1,
270 	DEPGRP_REQUIRE_ANY = 1,
271 	DEPGRP_REQUIRE_ALL,
272 	DEPGRP_EXCLUDE_ALL,
273 	DEPGRP_OPTIONAL_ALL
274 } depgroup_type_t;
275 
276 typedef enum {
277 	METHOD_RESTART_UNKNOWN = -1,
278 	METHOD_RESTART_ALL = 0,
279 	METHOD_RESTART_EXTERNAL_FAULT,
280 	METHOD_RESTART_ANY_FAULT,
281 	METHOD_RESTART_OTHER
282 } method_restart_t;
283 
284 typedef enum {
285 	PROPAGATE_START,
286 	PROPAGATE_STOP,
287 	PROPAGATE_SAT
288 } propagate_event_t;
289 
290 /*
291  * Graph representation.
292  */
293 #define	GV_CONFIGURED	0x01	/* Service exists in repository, ready */
294 #define	GV_ENABLED	0x02	/* Service should be online */
295 #define	GV_ENBLD_NOOVR	0x04	/* GV_ENABLED, ignoring override */
296 #define	GV_INSUBGRAPH	0x08	/* Current milestone depends on service */
297 #define	GV_DEATHROW	0x10	/* Service is on deathrow */
298 #define	GV_TOOFFLINE	0x20	/* Services in subtree to offline */
299 #define	GV_TODISABLE	0x40	/* Services in subtree to disable */
300 
301 /* ID must come first to support search */
302 typedef struct graph_vertex {
303 	int				gv_id;
304 	char				*gv_name;
305 	uu_list_node_t			gv_link;
306 
307 	uint_t				gv_flags;
308 	restarter_instance_state_t	gv_state;
309 
310 	gv_type_t			gv_type;
311 
312 	depgroup_type_t			gv_depgroup;
313 	restarter_error_t		gv_restart;
314 
315 	void				(*gv_start_f)(struct graph_vertex *);
316 	void				(*gv_post_online_f)(void);
317 	void				(*gv_post_disable_f)(void);
318 
319 	int				gv_restarter_id;
320 	evchan_t			*gv_restarter_channel;
321 
322 	int				gv_delegate_initialized;
323 	evchan_t			*gv_delegate_channel;
324 
325 	uu_list_t			*gv_dependencies;
326 	uu_list_t			*gv_dependents;
327 
328 	/*
329 	 * gv_refs represents the number of references besides dependencies.
330 	 * The vertex cannot be removed when gv_refs > 0.
331 	 *
332 	 * Currently, only relevant for GVT_SVC and GVT_INST type vertices.
333 	 */
334 	int 				gv_refs;
335 
336 	int32_t				gv_stn_tset;
337 	int32_t				gv_reason;
338 } graph_vertex_t;
339 
340 typedef struct graph_edge {
341 	graph_vertex_t	*ge_vertex;
342 	uu_list_node_t	ge_link;
343 	graph_vertex_t	*ge_parent;
344 } graph_edge_t;
345 
346 int libscf_get_info_events_all(scf_propertygroup_t *);
347 int32_t libscf_get_stn_tset(scf_instance_t *);
348 
349 /*
350  * Restarter transition outcomes
351  */
352 typedef enum {
353 	MAINT_REQUESTED,
354 	START_REQUESTED,
355 	START_FAILED_REPEATEDLY,
356 	START_FAILED_CONFIGURATION,
357 	START_FAILED_FATAL,
358 	START_FAILED_TIMEOUT_FATAL,
359 	START_FAILED_OTHER
360 } start_outcome_t;
361 
362 typedef void (*instance_hook_t)(void);
363 
364 typedef struct service_hook_assn {
365 	char	*sh_fmri;
366 	instance_hook_t	sh_pre_online_hook;
367 	instance_hook_t	sh_post_online_hook;
368 	instance_hook_t	sh_post_offline_hook;
369 } service_hook_assn_t;
370 
371 /*
372  * Restarter instance stop reasons.
373  */
374 typedef enum {
375 	RSTOP_EXIT = 0x0,	/* exited or empty */
376 	RSTOP_CORE,		/* core dumped */
377 	RSTOP_SIGNAL,		/* external fatal signal received */
378 	RSTOP_HWERR,		/* uncorrectable hardware error */
379 	RSTOP_DEPENDENCY,	/* dependency activity caused stop */
380 	RSTOP_DISABLE,		/* disabled */
381 	RSTOP_RESTART		/* restart requested */
382 } stop_cause_t;
383 
384 /*
385  * Restarter instance maintenance clear reasons.
386  */
387 typedef enum {
388 	RUNMAINT_CLEAR = 0x0,
389 	RUNMAINT_DISABLE
390 } unmaint_cause_t;
391 
392 /*
393  * Restarter instance flags
394  */
395 #define	RINST_CONTRACT		0x00000000	/* progeny constitute inst */
396 #define	RINST_TRANSIENT		0x10000000	/* inst operates momentarily */
397 #define	RINST_WAIT		0x20000000	/* child constitutes inst */
398 #define	RINST_STYLE_MASK	0xf0000000
399 
400 #define	RINST_RETAKE_RUNNING	0x01000000	/* pending running snapshot */
401 #define	RINST_RETAKE_START	0x02000000	/* pending start snapshot */
402 
403 #define	RINST_RETAKE_MASK	0x0f000000
404 
405 #define	RINST_START_TIMES	5		/* failures to consider */
406 #define	RINST_FAILURE_RATE_NS	600000000000LL	/* 1 failure/10 minutes */
407 
408 /* Number of events in the queue when we start dropping ADMIN events. */
409 #define	RINST_QUEUE_THRESHOLD	100
410 
411 typedef struct restarter_inst {
412 	int			ri_id;
413 	instance_data_t		ri_i;
414 	char			*ri_common_name; /* template localized name */
415 	char			*ri_C_common_name; /* C locale name */
416 
417 	char			*ri_logstem;	/* logfile name */
418 	char			*ri_utmpx_prefix;
419 	uint_t			ri_flags;
420 	instance_hook_t		ri_pre_online_hook;
421 	instance_hook_t		ri_post_online_hook;
422 	instance_hook_t		ri_post_offline_hook;
423 
424 	hrtime_t		ri_start_time[RINST_START_TIMES];
425 	uint_t			ri_start_index;	/* times started */
426 
427 	uu_list_node_t		ri_link;
428 	pthread_mutex_t		ri_lock;
429 
430 	/*
431 	 * When we start a thread to we execute a method for this instance, we
432 	 * put the thread id in ri_method_thread.  Threads with ids other than
433 	 * this which acquire ri_lock while ri_method_thread is nonzero should
434 	 * wait on ri_method_cv.  ri_method_waiters should be incremented while
435 	 * waiting so the instance won't be deleted.
436 	 */
437 	pthread_t		ri_method_thread;
438 	pthread_cond_t		ri_method_cv;
439 	uint_t			ri_method_waiters;
440 
441 	/*
442 	 * These fields are provided so functions can operate on this structure
443 	 * and the repository without worrying about whether the instance has
444 	 * been deleted from the repository (this is possible because
445 	 * ri_i.i_fmri names the instance this structure represents -- see
446 	 * libscf_reget_inst()).  ri_m_inst is the scf_instance_t for the
447 	 * instance, and ri_mi_deleted is true if the instance has been deleted.
448 	 */
449 	scf_instance_t		*ri_m_inst;
450 	boolean_t		ri_mi_deleted;
451 
452 	/*
453 	 * We maintain a pointer to any pending timeout for this instance
454 	 * for quick reference/deletion.
455 	 */
456 	timeout_entry_t		*ri_timeout;
457 
458 	/*
459 	 * Instance event queue.  Graph events are queued here as a list
460 	 * of restarter_instance_qentry_t's, and the lock is held separately.
461 	 * If both ri_lock and ri_queue_lock are grabbed, ri_lock must be
462 	 * grabbed first.  ri_queue_lock protects all ri_queue_* structure
463 	 * members.
464 	 */
465 	pthread_mutex_t		ri_queue_lock;
466 	pthread_cond_t		ri_queue_cv;
467 	uu_list_t		*ri_queue;
468 	int			ri_queue_thread;
469 
470 } restarter_inst_t;
471 
472 typedef struct restarter_instance_list {
473 	uu_list_t		*ril_instance_list;
474 	pthread_mutex_t		ril_lock;
475 } restarter_instance_list_t;
476 
477 typedef struct restarter_instance_qentry {
478 	restarter_event_type_t	riq_type;
479 	int32_t			riq_reason;
480 	uu_list_node_t		riq_link;
481 } restarter_instance_qentry_t;
482 
483 typedef struct fork_info {
484 	int			sf_id;
485 	int			sf_method_type;
486 	restarter_error_t	sf_event_type;
487 	restarter_str_t		sf_reason;
488 } fork_info_t;
489 
490 typedef struct wait_info {
491 	uu_list_node_t		wi_link;
492 
493 	int			wi_fd;		/* psinfo file descriptor */
494 	id_t			wi_pid;		/* process ID */
495 	const char		*wi_fmri;	/* instance FMRI */
496 	int			wi_parent;	/* startd is parent */
497 	int			wi_ignore;	/* ignore events */
498 } wait_info_t;
499 
500 #define	STARTD_LOG_FILE		0x1
501 #define	STARTD_LOG_TERMINAL	0x2
502 #define	STARTD_LOG_SYSLOG	0x4
503 
504 #define	STARTD_BOOT_QUIET	0x1
505 #define	STARTD_BOOT_VERBOSE	0x2
506 
507 /*
508  * Internal debug flags used to reduce the amount of data sent to the
509  * internal debug buffer. They can be turned on & off dynamically using
510  * internal_debug_flags variable in mdb. By default, they're off.
511  */
512 #define	DEBUG_DEPENDENCIES	0x1
513 
514 typedef struct startd_state {
515 	/* Logging configuration */
516 	char		*st_log_prefix;	/* directory prefix */
517 	char		*st_log_file;	/* startd file in above dir */
518 	uint_t		st_log_flags;	/* message destination */
519 	int		st_log_level_min; /* minimum required to log */
520 	int		st_log_timezone_known; /* timezone is available */
521 	int		st_log_locale_known; /* locale is available */
522 	int		st_log_login_reached; /* login service reached */
523 
524 	/* Boot configuration */
525 	uint_t		st_boot_flags;	/* serial boot, etc. */
526 	uint_t		st_initial;	/* first startd on system */
527 
528 	/* System configuration */
529 	char		*st_subgraph;	/* milestone subgraph request */
530 
531 	uint_t		st_load_complete;  /* graph load completed */
532 	uint_t		st_load_instances; /* restarter instances to load */
533 	pthread_mutex_t	st_load_lock;
534 	pthread_cond_t	st_load_cv;
535 
536 	/* Repository configuration */
537 	pid_t		st_configd_pid;	/* PID of our svc.configd */
538 					/* instance */
539 	int		st_configd_lives; /* configd started */
540 	pthread_mutex_t	st_configd_live_lock;
541 	pthread_cond_t	st_configd_live_cv;
542 
543 	char		*st_door_path;
544 
545 	/* General information */
546 	uint_t		st_flags;
547 	struct timeval	st_start_time;	/* effective system start time */
548 	char		*st_locale;
549 } startd_state_t;
550 
551 extern startd_state_t *st;
552 
553 extern boolean_t booting_to_single_user;
554 
555 extern const char *event_names[];
556 
557 /*
558  * Structures for contract to instance hash table, implemented in
559  * contract.c and used by restarter.c and method.c
560  */
561 typedef struct contract_entry {
562 	ctid_t		ce_ctid;
563 	int		ce_instid;
564 
565 	uu_list_node_t	ce_link;
566 } contract_entry_t;
567 
568 extern volatile uint16_t	storing_contract;
569 
570 uu_list_pool_t *contract_list_pool;
571 
572 /* contract.c */
573 ctid_t contract_init(void);
574 void contract_abandon(ctid_t);
575 int contract_kill(ctid_t, int, const char *);
576 int contract_is_empty(ctid_t);
577 void contract_hash_init();
578 void contract_hash_store(ctid_t, int);
579 void contract_hash_remove(ctid_t);
580 int lookup_inst_by_contract(ctid_t);
581 
582 /* dict.c */
583 void dict_init(void);
584 int dict_lookup_byname(const char *);
585 int dict_insert(const char *);
586 
587 /* expand.c */
588 int expand_method_tokens(const char *, scf_instance_t *,
589     scf_snapshot_t *, int, char **);
590 
591 /* env.c */
592 void init_env(void);
593 char **set_smf_env(char **, size_t, const char *,
594     const restarter_inst_t *, const char *);
595 
596 /* file.c */
597 int file_ready(graph_vertex_t *);
598 
599 /* fork.c */
600 int fork_mount(char *, char *);
601 void fork_sulogin(boolean_t, const char *, ...);
602 void fork_rc_script(char, const char *, boolean_t);
603 
604 void *fork_configd_thread(void *);
605 
606 pid_t startd_fork1(int *);
607 void fork_with_timeout(const char *, uint_t, uint_t);
608 void fork_emi();
609 
610 /* graph.c */
611 void graph_init(void);
612 void *single_user_thread(void *);
613 void *graph_thread(void *);
614 void *graph_event_thread(void *);
615 void *repository_event_thread(void *);
616 int dgraph_add_instance(const char *, scf_instance_t *, boolean_t);
617 void graph_engine_start(void);
618 void graph_enable_by_vertex(graph_vertex_t *, int, int);
619 int refresh_vertex(graph_vertex_t *, scf_instance_t *);
620 void vertex_send_event(graph_vertex_t *, restarter_event_type_t);
621 void graph_start_if_satisfied(graph_vertex_t *);
622 int vertex_subgraph_dependencies_shutdown(scf_handle_t *, graph_vertex_t *,
623     restarter_instance_state_t);
624 void graph_transition_sulogin(restarter_instance_state_t,
625     restarter_instance_state_t);
626 void graph_transition_propagate(graph_vertex_t *, propagate_event_t,
627     restarter_error_t);
628 void graph_offline_subtree_leaves(graph_vertex_t *, void *);
629 void offline_vertex(graph_vertex_t *);
630 
631 /* libscf.c - common */
632 char *inst_fmri_to_svc_fmri(const char *);
633 void *libscf_object_create(void *(*)(scf_handle_t *), scf_handle_t *);
634 int libscf_instance_get_fmri(scf_instance_t *, char **);
635 int libscf_fmri_get_instance(scf_handle_t *, const char *, scf_instance_t **);
636 int libscf_lookup_instance(const char *, scf_instance_t *);
637 int libscf_set_reconfig(int);
638 scf_snapshot_t *libscf_get_or_make_running_snapshot(scf_instance_t *,
639     const char *, boolean_t);
640 int libscf_inst_set_count_prop(scf_instance_t *, const char *,
641     const char *pgtype, uint32_t, const char *, uint64_t);
642 
643 /* libscf.c - used by graph.c */
644 int libscf_get_deathrow(scf_handle_t *, scf_instance_t *, int *);
645 int libscf_get_basic_instance_data(scf_handle_t *, scf_instance_t *,
646     const char *, int *, int *, char **);
647 int libscf_inst_get_or_add_pg(scf_instance_t *, const char *, const char *,
648     uint32_t, scf_propertygroup_t *);
649 int libscf_read_states(const scf_propertygroup_t *,
650     restarter_instance_state_t *, restarter_instance_state_t *);
651 int depgroup_empty(scf_handle_t *, scf_propertygroup_t *);
652 gv_type_t depgroup_read_scheme(scf_handle_t *, scf_propertygroup_t *);
653 depgroup_type_t depgroup_read_grouping(scf_handle_t *, scf_propertygroup_t *);
654 restarter_error_t depgroup_read_restart(scf_handle_t *, scf_propertygroup_t *);
655 int libscf_set_enable_ovr(scf_instance_t *, int);
656 int libscf_set_deathrow(scf_instance_t *, int);
657 int libscf_delete_enable_ovr(scf_instance_t *);
658 int libscf_get_milestone(scf_instance_t *, scf_property_t *, scf_value_t *,
659     char *, size_t);
660 int libscf_extract_runlevel(scf_property_t *, char *);
661 int libscf_clear_runlevel(scf_propertygroup_t *, const char *milestone);
662 
663 typedef int (*callback_t)(void *, void *);
664 
665 int walk_dependency_pgs(scf_instance_t *, callback_t, void *);
666 int walk_property_astrings(scf_property_t *, callback_t, void *);
667 void libscf_reset_start_times(restarter_inst_t *, int);
668 
669 /* libscf.c - used by restarter.c/method.c/expand.c */
670 char *libscf_get_method(scf_handle_t *, int, restarter_inst_t *,
671     scf_snapshot_t *, method_restart_t *, uint_t *, uint8_t *, uint64_t *,
672     uint8_t *);
673 void libscf_populate_graph(scf_handle_t *h);
674 int update_fault_count(restarter_inst_t *, int);
675 int libscf_unset_action(scf_handle_t *, scf_propertygroup_t *, admin_action_t,
676     int64_t);
677 int libscf_get_startd_properties(scf_instance_t *, scf_snapshot_t *, uint_t *,
678     char **);
679 int libscf_get_template_values(scf_instance_t *, scf_snapshot_t *, char **,
680     char **);
681 
682 int libscf_read_method_ids(scf_handle_t *, scf_instance_t *, const char *,
683     ctid_t *, ctid_t *, pid_t *);
684 int libscf_write_start_pid(scf_instance_t *, pid_t);
685 int libscf_write_method_status(scf_instance_t *, const char *, int);
686 int libscf_note_method_log(scf_instance_t *, const char *, const char *);
687 
688 scf_handle_t *libscf_handle_create_bound(scf_version_t);
689 void libscf_handle_rebind(scf_handle_t *);
690 scf_handle_t *libscf_handle_create_bound_loop(void);
691 
692 scf_snapshot_t *libscf_get_running_snapshot(scf_instance_t *);
693 int libscf_snapshots_poststart(scf_handle_t *, const char *, boolean_t);
694 int libscf_snapshots_refresh(scf_instance_t *, const char *);
695 
696 int instance_is_transient_style(restarter_inst_t *);
697 int instance_is_wait_style(restarter_inst_t *);
698 
699 int libscf_create_self(scf_handle_t *);
700 
701 void libscf_reget_instance(restarter_inst_t *);
702 
703 /* log.c */
704 void log_init();
705 void log_error(int, const char *, ...);
706 void log_framework(int, const char *, ...);
707 void log_framework2(int, int, const char *, ...);
708 void log_console(int, const char *, ...);
709 void log_preexec(void);
710 void setlog(const char *);
711 void log_transition(const restarter_inst_t *, start_outcome_t);
712 void log_instance(const restarter_inst_t *, boolean_t, const char *, ...);
713 void log_instance_fmri(const char *, const char *, boolean_t,
714     const char *, ...);
715 
716 /* method.c */
717 void *method_thread(void *);
718 void method_remove_contract(restarter_inst_t *, boolean_t, boolean_t);
719 
720 /* misc.c */
721 void startd_close(int);
722 void startd_fclose(FILE *);
723 int fmri_canonify(const char *, char **, boolean_t);
724 int fs_is_read_only(char *, ulong_t *);
725 int fs_remount(char *);
726 void xstr_sanitize(char *);
727 
728 /* restarter.c */
729 void restarter_init(void);
730 void restarter_start(void);
731 int instance_in_transition(restarter_inst_t *);
732 int restarter_instance_update_states(scf_handle_t *, restarter_inst_t *,
733     restarter_instance_state_t, restarter_instance_state_t, restarter_error_t,
734     restarter_str_t);
735 int stop_instance_fmri(scf_handle_t *, const char *, uint_t);
736 restarter_inst_t *inst_lookup_by_id(int);
737 void restarter_mark_pending_snapshot(const char *, uint_t);
738 void *restarter_post_fsminimal_thread(void *);
739 void timeout_insert(restarter_inst_t *, ctid_t, uint64_t);
740 void timeout_remove(restarter_inst_t *, ctid_t);
741 void timeout_init(void);
742 int is_timeout_ovr(restarter_inst_t *);
743 
744 /* startd.c */
745 void *safe_realloc(void *, size_t);
746 char *safe_strdup(const char *s);
747 void *startd_alloc_retry(void *(*)(size_t, int), size_t);
748 void startd_free(void *, size_t);
749 uu_list_pool_t *startd_list_pool_create(const char *, size_t, size_t,
750     uu_compare_fn_t *, uint32_t);
751 uu_list_t *startd_list_create(uu_list_pool_t *, void *, uint32_t);
752 pthread_t startd_thread_create(void *(*)(void *), void *);
753 
754 /* special.c */
755 void special_null_transition(void);
756 void special_online_hooks_get(const char *, instance_hook_t *,
757     instance_hook_t *, instance_hook_t *);
758 
759 /* transition.c */
760 int gt_transition(scf_handle_t *, graph_vertex_t *, restarter_error_t,
761     restarter_instance_state_t);
762 
763 /* utmpx.c */
764 void utmpx_init(void);
765 void utmpx_clear_old(void);
766 int utmpx_mark_init(pid_t, char *);
767 void utmpx_mark_dead(pid_t, int, boolean_t);
768 char utmpx_get_runlevel(void);
769 void utmpx_set_runlevel(char, char, boolean_t);
770 void utmpx_write_boottime(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