xref: /titanic_50/usr/src/lib/libscf/common/midlevel.c (revision 67318e4a54c292d543e6b077199ce492b3d3a049)
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 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include "libscf_impl.h"
30 
31 #include <libuutil.h>
32 #include <stdio.h>
33 #include <strings.h>
34 #include <string.h>
35 #include <stdlib.h>
36 #include <sys/param.h>
37 #include <errno.h>
38 #include <libgen.h>
39 #include "midlevel_impl.h"
40 #include "lowlevel_impl.h"
41 
42 #ifndef NDEBUG
43 #define	bad_error(func, err)	{					\
44 	uu_warn("%s:%d: %s failed with unexpected error %d.  Aborting.\n", \
45 	    __FILE__, __LINE__, func, err);				\
46 	abort();							\
47 }
48 #else
49 #define	bad_error(func, err)	abort()
50 #endif
51 
52 /* Path to speedy files area must end with a slash */
53 #define	SMF_SPEEDY_FILES_PATH		"/etc/svc/volatile/"
54 
55 /*
56  * Internal private function that creates and binds a handle.
57  */
58 static scf_handle_t *
59 handle_create(void)
60 {
61 	scf_handle_t *h;
62 
63 	h = scf_handle_create(SCF_VERSION);
64 	if (h == NULL)
65 		return (NULL);
66 
67 	if (scf_handle_bind(h) == -1) {
68 		scf_handle_destroy(h);
69 		return (NULL);
70 	}
71 	return (h);
72 }
73 
74 void
75 scf_simple_handle_destroy(scf_simple_handle_t *simple_h)
76 {
77 	if (simple_h == NULL)
78 		return;
79 
80 	scf_pg_destroy(simple_h->running_pg);
81 	scf_pg_destroy(simple_h->editing_pg);
82 	scf_snapshot_destroy(simple_h->snap);
83 	scf_instance_destroy(simple_h->inst);
84 	scf_handle_destroy(simple_h->h);
85 	uu_free(simple_h);
86 }
87 
88 /*
89  * Given a base service FMRI and the names of a property group and property,
90  * assemble_fmri() merges them into a property FMRI.  Note that if the base
91  * FMRI is NULL, assemble_fmri() gets the base FMRI from scf_myname().
92  */
93 
94 static char *
95 assemble_fmri(scf_handle_t *h, const char *base, const char *pg,
96     const char *prop)
97 {
98 	size_t	fmri_sz, pglen;
99 	ssize_t baselen;
100 	char	*fmri_buf;
101 
102 	if (prop == NULL) {
103 		(void) scf_set_error(SCF_ERROR_INVALID_ARGUMENT);
104 		return (NULL);
105 	}
106 
107 	if (pg == NULL)
108 		pglen = strlen(SCF_PG_APP_DEFAULT);
109 	else
110 		pglen = strlen(pg);
111 
112 	if (base == NULL) {
113 		if ((baselen = scf_myname(h, NULL, 0)) == -1)
114 			return (NULL);
115 	} else {
116 		baselen = strlen(base);
117 	}
118 
119 	fmri_sz = baselen + sizeof (SCF_FMRI_PROPERTYGRP_PREFIX) - 1 +
120 	    pglen + sizeof (SCF_FMRI_PROPERTY_PREFIX) - 1 +
121 	    strlen(prop) + 1;
122 
123 	if ((fmri_buf = malloc(fmri_sz)) == NULL) {
124 		(void) scf_set_error(SCF_ERROR_NO_MEMORY);
125 		return (NULL);
126 	}
127 
128 	if (base == NULL) {
129 		if (scf_myname(h, fmri_buf, fmri_sz) == -1) {
130 			free(fmri_buf);
131 			return (NULL);
132 		}
133 	} else {
134 		(void) strcpy(fmri_buf, base);
135 	}
136 
137 	(void) strcat(fmri_buf, SCF_FMRI_PROPERTYGRP_PREFIX);
138 
139 	if (pg == NULL)
140 		(void) strcat(fmri_buf, SCF_PG_APP_DEFAULT);
141 	else
142 		(void) strcat(fmri_buf, pg);
143 
144 	(void) strcat(fmri_buf, SCF_FMRI_PROPERTY_PREFIX);
145 	(void) strcat(fmri_buf, prop);
146 	return (fmri_buf);
147 }
148 
149 /*
150  * Given a property, this function allocates and fills an scf_simple_prop_t
151  * with the data it contains.
152  */
153 
154 static scf_simple_prop_t *
155 fill_prop(scf_property_t *prop, const char *pgname, const char *propname,
156     scf_handle_t *h)
157 {
158 	scf_simple_prop_t 		*ret;
159 	scf_iter_t 			*iter;
160 	scf_value_t 			*val;
161 	int 				iterret, i;
162 	ssize_t 			valsize, numvals;
163 	union scf_simple_prop_val 	*vallist = NULL, *vallist_backup = NULL;
164 
165 	if ((ret = malloc(sizeof (*ret))) == NULL) {
166 		(void) scf_set_error(SCF_ERROR_NO_MEMORY);
167 		return (NULL);
168 	}
169 
170 	ret->pr_next = NULL;
171 	ret->pr_pg = NULL;
172 	ret->pr_iter = 0;
173 
174 	if (pgname == NULL)
175 		ret->pr_pgname = strdup(SCF_PG_APP_DEFAULT);
176 	else
177 		ret->pr_pgname = strdup(pgname);
178 
179 	if (ret->pr_pgname == NULL) {
180 		(void) scf_set_error(SCF_ERROR_NO_MEMORY);
181 		free(ret);
182 		return (NULL);
183 	}
184 
185 	if ((ret->pr_propname = strdup(propname)) == NULL) {
186 		(void) scf_set_error(SCF_ERROR_NO_MEMORY);
187 		free(ret->pr_pgname);
188 		free(ret);
189 		return (NULL);
190 	}
191 
192 	if (scf_property_type(prop, &ret->pr_type) == -1)
193 		goto error3;
194 
195 	if ((iter = scf_iter_create(h)) == NULL)
196 		goto error3;
197 	if ((val = scf_value_create(h)) == NULL) {
198 		scf_iter_destroy(iter);
199 		goto error3;
200 	}
201 
202 	if (scf_iter_property_values(iter, prop) == -1)
203 		goto error1;
204 
205 	for (numvals = 0; (iterret = scf_iter_next_value(iter, val)) == 1;
206 	    numvals++) {
207 		vallist_backup = vallist;
208 		if ((vallist = realloc(vallist, (numvals + 1) *
209 		    sizeof (*vallist))) == NULL) {
210 			vallist = vallist_backup;
211 			goto error1;
212 		}
213 
214 		switch (ret->pr_type) {
215 		case SCF_TYPE_BOOLEAN:
216 			if (scf_value_get_boolean(val,
217 			    &vallist[numvals].pv_bool) == -1)
218 				goto error1;
219 			break;
220 
221 		case SCF_TYPE_COUNT:
222 			if (scf_value_get_count(val,
223 			    &vallist[numvals].pv_uint) == -1)
224 				goto error1;
225 			break;
226 
227 		case SCF_TYPE_INTEGER:
228 			if (scf_value_get_integer(val,
229 			    &vallist[numvals].pv_int) == -1)
230 				goto error1;
231 			break;
232 
233 		case SCF_TYPE_TIME:
234 			if (scf_value_get_time(val,
235 			    &vallist[numvals].pv_time.t_sec,
236 			    &vallist[numvals].pv_time.t_nsec) == -1)
237 				goto error1;
238 			break;
239 
240 		case SCF_TYPE_ASTRING:
241 			vallist[numvals].pv_str = NULL;
242 			if ((valsize = scf_value_get_astring(val, NULL, 0)) ==
243 			    -1)
244 				goto error1;
245 			if ((vallist[numvals].pv_str = malloc(valsize+1)) ==
246 			    NULL) {
247 				(void) scf_set_error(SCF_ERROR_NO_MEMORY);
248 				goto error1;
249 			}
250 			if (scf_value_get_astring(val,
251 			    vallist[numvals].pv_str, valsize+1) == -1) {
252 				free(vallist[numvals].pv_str);
253 				goto error1;
254 			}
255 			break;
256 
257 		case SCF_TYPE_USTRING:
258 		case SCF_TYPE_HOST:
259 		case SCF_TYPE_HOSTNAME:
260 		case SCF_TYPE_NET_ADDR_V4:
261 		case SCF_TYPE_NET_ADDR_V6:
262 		case SCF_TYPE_URI:
263 		case SCF_TYPE_FMRI:
264 			vallist[numvals].pv_str = NULL;
265 			if ((valsize = scf_value_get_ustring(val, NULL, 0)) ==
266 			    -1)
267 				goto error1;
268 			if ((vallist[numvals].pv_str = malloc(valsize+1)) ==
269 			    NULL) {
270 				(void) scf_set_error(SCF_ERROR_NO_MEMORY);
271 				goto error1;
272 			}
273 			if (scf_value_get_ustring(val,
274 			    vallist[numvals].pv_str, valsize+1) == -1) {
275 				free(vallist[numvals].pv_str);
276 				goto error1;
277 			}
278 			break;
279 
280 		case SCF_TYPE_OPAQUE:
281 			vallist[numvals].pv_opaque.o_value = NULL;
282 			if ((valsize = scf_value_get_opaque(val, NULL, 0)) ==
283 			    -1)
284 				goto error1;
285 			if ((vallist[numvals].pv_opaque.o_value =
286 			    malloc(valsize)) == NULL) {
287 				(void) scf_set_error(SCF_ERROR_NO_MEMORY);
288 				goto error1;
289 			}
290 			vallist[numvals].pv_opaque.o_size = valsize;
291 			if (scf_value_get_opaque(val,
292 			    vallist[numvals].pv_opaque.o_value,
293 			    valsize) == -1) {
294 				free(vallist[numvals].pv_opaque.o_value);
295 				goto error1;
296 			}
297 			break;
298 
299 		default:
300 			(void) scf_set_error(SCF_ERROR_INTERNAL);
301 			goto error1;
302 
303 		}
304 	}
305 
306 	if (iterret == -1) {
307 		int err = scf_error();
308 		if (err != SCF_ERROR_CONNECTION_BROKEN &&
309 		    err != SCF_ERROR_PERMISSION_DENIED)
310 			(void) scf_set_error(SCF_ERROR_INTERNAL);
311 		goto error1;
312 	}
313 
314 	ret->pr_vallist = vallist;
315 	ret->pr_numvalues = numvals;
316 
317 	scf_iter_destroy(iter);
318 	(void) scf_value_destroy(val);
319 
320 	return (ret);
321 
322 	/*
323 	 * Exit point for a successful call.  Below this line are exit points
324 	 * for failures at various stages during the function.
325 	 */
326 
327 error1:
328 	if (vallist == NULL)
329 		goto error2;
330 
331 	switch (ret->pr_type) {
332 	case SCF_TYPE_ASTRING:
333 	case SCF_TYPE_USTRING:
334 	case SCF_TYPE_HOST:
335 	case SCF_TYPE_HOSTNAME:
336 	case SCF_TYPE_NET_ADDR_V4:
337 	case SCF_TYPE_NET_ADDR_V6:
338 	case SCF_TYPE_URI:
339 	case SCF_TYPE_FMRI: {
340 		for (i = 0; i < numvals; i++) {
341 			free(vallist[i].pv_str);
342 		}
343 		break;
344 	}
345 	case SCF_TYPE_OPAQUE: {
346 		for (i = 0; i < numvals; i++) {
347 			free(vallist[i].pv_opaque.o_value);
348 		}
349 		break;
350 	}
351 	default:
352 		break;
353 	}
354 
355 	free(vallist);
356 
357 error2:
358 	scf_iter_destroy(iter);
359 	(void) scf_value_destroy(val);
360 
361 error3:
362 	free(ret->pr_pgname);
363 	free(ret->pr_propname);
364 	free(ret);
365 	return (NULL);
366 }
367 
368 /*
369  * insert_app_props iterates over a property iterator, getting all the
370  * properties from a property group, and adding or overwriting them into
371  * a simple_app_props_t.  This is used by scf_simple_app_props_get to provide
372  * service/instance composition while filling the app_props_t.
373  * insert_app_props iterates over a single property group.
374  */
375 
376 static int
377 insert_app_props(scf_iter_t *propiter, char *pgname, char *propname, struct
378     scf_simple_pg *thispg, scf_property_t *prop, size_t namelen,
379     scf_handle_t *h)
380 {
381 	scf_simple_prop_t	*thisprop, *prevprop, *newprop;
382 	uint8_t			found;
383 	int			propiter_ret;
384 
385 	while ((propiter_ret = scf_iter_next_property(propiter, prop)) == 1) {
386 
387 		if (scf_property_get_name(prop, propname, namelen) < 0) {
388 			if (scf_error() == SCF_ERROR_NOT_SET)
389 				(void) scf_set_error(SCF_ERROR_INTERNAL);
390 			return (-1);
391 		}
392 
393 		thisprop = thispg->pg_proplist;
394 		prevprop = thispg->pg_proplist;
395 		found = 0;
396 
397 		while ((thisprop != NULL) && (!found)) {
398 			if (strcmp(thisprop->pr_propname, propname) == 0) {
399 				found = 1;
400 				if ((newprop = fill_prop(prop, pgname,
401 				    propname, h)) == NULL)
402 					return (-1);
403 
404 				if (thisprop == thispg->pg_proplist)
405 					thispg->pg_proplist = newprop;
406 				else
407 					prevprop->pr_next = newprop;
408 
409 				newprop->pr_pg = thispg;
410 				newprop->pr_next = thisprop->pr_next;
411 				scf_simple_prop_free(thisprop);
412 				thisprop = NULL;
413 			} else {
414 				if (thisprop != thispg->pg_proplist)
415 					prevprop = prevprop->pr_next;
416 				thisprop = thisprop->pr_next;
417 			}
418 		}
419 
420 		if (!found) {
421 			if ((newprop = fill_prop(prop, pgname, propname, h)) ==
422 			    NULL)
423 				return (-1);
424 
425 			if (thispg->pg_proplist == NULL)
426 				thispg->pg_proplist = newprop;
427 			else
428 				prevprop->pr_next = newprop;
429 
430 			newprop->pr_pg = thispg;
431 		}
432 	}
433 
434 	if (propiter_ret == -1) {
435 		if (scf_error() != SCF_ERROR_CONNECTION_BROKEN)
436 			(void) scf_set_error(SCF_ERROR_INTERNAL);
437 		return (-1);
438 	}
439 
440 	return (0);
441 }
442 
443 
444 /*
445  * Sets up e in tx to set pname's values.  Returns 0 on success or -1 on
446  * failure, with scf_error() set to
447  *   SCF_ERROR_HANDLE_MISMATCH - tx & e are derived from different handles
448  *   SCF_ERROR_INVALID_ARGUMENT - pname or ty are invalid
449  *   SCF_ERROR_NOT_BOUND - handle is not bound
450  *   SCF_ERROR_CONNECTION_BROKEN - connection was broken
451  *   SCF_ERROR_NOT_SET - tx has not been started
452  *   SCF_ERROR_DELETED - the pg tx was started on was deleted
453  */
454 static int
455 transaction_property_set(scf_transaction_t *tx, scf_transaction_entry_t *e,
456     const char *pname, scf_type_t ty)
457 {
458 	for (;;) {
459 		if (scf_transaction_property_change_type(tx, e, pname, ty) == 0)
460 			return (0);
461 
462 		switch (scf_error()) {
463 		case SCF_ERROR_HANDLE_MISMATCH:
464 		case SCF_ERROR_INVALID_ARGUMENT:
465 		case SCF_ERROR_NOT_BOUND:
466 		case SCF_ERROR_CONNECTION_BROKEN:
467 		case SCF_ERROR_NOT_SET:
468 		case SCF_ERROR_DELETED:
469 		default:
470 			return (-1);
471 
472 		case SCF_ERROR_NOT_FOUND:
473 			break;
474 		}
475 
476 		if (scf_transaction_property_new(tx, e, pname, ty) == 0)
477 			return (0);
478 
479 		switch (scf_error()) {
480 		case SCF_ERROR_HANDLE_MISMATCH:
481 		case SCF_ERROR_INVALID_ARGUMENT:
482 		case SCF_ERROR_NOT_BOUND:
483 		case SCF_ERROR_CONNECTION_BROKEN:
484 		case SCF_ERROR_NOT_SET:
485 		case SCF_ERROR_DELETED:
486 		default:
487 			return (-1);
488 
489 		case SCF_ERROR_EXISTS:
490 			break;
491 		}
492 	}
493 }
494 
495 static int
496 get_inst_enabled(const scf_instance_t *inst, const char *pgname)
497 {
498 	scf_propertygroup_t 	*gpg = NULL;
499 	scf_property_t 		*eprop = NULL;
500 	scf_value_t 		*v = NULL;
501 	scf_handle_t		*h = NULL;
502 	uint8_t			enabled;
503 	int			ret = -1;
504 
505 	if ((h = scf_instance_handle(inst)) == NULL)
506 		return (-1);
507 
508 	if ((gpg = scf_pg_create(h)) == NULL ||
509 	    (eprop = scf_property_create(h)) == NULL ||
510 	    (v = scf_value_create(h)) == NULL)
511 		goto out;
512 
513 	if (scf_instance_get_pg(inst, pgname, gpg) ||
514 	    scf_pg_get_property(gpg, SCF_PROPERTY_ENABLED, eprop) ||
515 	    scf_property_get_value(eprop, v) ||
516 	    scf_value_get_boolean(v, &enabled))
517 		goto out;
518 	ret = enabled;
519 
520 out:
521 	scf_pg_destroy(gpg);
522 	scf_property_destroy(eprop);
523 	scf_value_destroy(v);
524 	return (ret);
525 }
526 
527 /*
528  * set_inst_enabled() is a "master" enable/disable call that takes the
529  * instance and the desired state for the enabled bit in the instance's
530  * named property group.  If the group doesn't exist, it's created with the
531  * given flags.  Called by smf_{dis,en}able_instance().
532  */
533 static int
534 set_inst_enabled(const scf_instance_t *inst, uint8_t desired,
535     const char *pgname, uint32_t pgflags)
536 {
537 	scf_transaction_t 	*tx = NULL;
538 	scf_transaction_entry_t *ent = NULL;
539 	scf_propertygroup_t 	*gpg = NULL;
540 	scf_property_t 		*eprop = NULL;
541 	scf_value_t 		*v = NULL;
542 	scf_handle_t		*h = NULL;
543 	int 			ret = -1;
544 	int			committed;
545 	uint8_t			b;
546 
547 	if ((h = scf_instance_handle(inst)) == NULL)
548 		return (-1);
549 
550 	if ((gpg = scf_pg_create(h)) == NULL ||
551 	    (eprop = scf_property_create(h)) == NULL ||
552 	    (v = scf_value_create(h)) == NULL ||
553 	    (tx = scf_transaction_create(h)) == NULL ||
554 	    (ent = scf_entry_create(h)) == NULL)
555 		goto out;
556 
557 general_pg_get:
558 	if (scf_instance_get_pg(inst, SCF_PG_GENERAL, gpg) == -1) {
559 		if (scf_error() != SCF_ERROR_NOT_FOUND)
560 			goto out;
561 
562 		if (scf_instance_add_pg(inst, SCF_PG_GENERAL,
563 		    SCF_GROUP_FRAMEWORK, SCF_PG_GENERAL_FLAGS, gpg) == -1) {
564 			if (scf_error() != SCF_ERROR_EXISTS)
565 				goto out;
566 			goto general_pg_get;
567 		}
568 	}
569 
570 	if (strcmp(pgname, SCF_PG_GENERAL) != 0) {
571 get:
572 		if (scf_instance_get_pg(inst, pgname, gpg) == -1) {
573 			if (scf_error() != SCF_ERROR_NOT_FOUND)
574 				goto out;
575 
576 			if (scf_instance_add_pg(inst, pgname,
577 			    SCF_GROUP_FRAMEWORK, pgflags, gpg) == -1) {
578 				if (scf_error() != SCF_ERROR_EXISTS)
579 					goto out;
580 				goto get;
581 			}
582 		}
583 	}
584 
585 	if (scf_pg_get_property(gpg, SCF_PROPERTY_ENABLED, eprop) == -1) {
586 		if (scf_error() != SCF_ERROR_NOT_FOUND)
587 			goto out;
588 		else
589 			goto set;
590 	}
591 
592 	/*
593 	 * If it's already set the way we want, forgo the transaction.
594 	 */
595 	if (scf_property_get_value(eprop, v) == -1) {
596 		switch (scf_error()) {
597 		case SCF_ERROR_CONSTRAINT_VIOLATED:
598 		case SCF_ERROR_NOT_FOUND:
599 			/* Misconfigured, so set anyway. */
600 			goto set;
601 
602 		default:
603 			goto out;
604 		}
605 	}
606 	if (scf_value_get_boolean(v, &b) == -1) {
607 		if (scf_error() != SCF_ERROR_TYPE_MISMATCH)
608 			goto out;
609 		goto set;
610 	}
611 	if (b == desired) {
612 		ret = 0;
613 		goto out;
614 	}
615 
616 set:
617 	do {
618 		if (scf_transaction_start(tx, gpg) == -1)
619 			goto out;
620 
621 		if (transaction_property_set(tx, ent, SCF_PROPERTY_ENABLED,
622 		    SCF_TYPE_BOOLEAN) != 0) {
623 			switch (scf_error()) {
624 			case SCF_ERROR_CONNECTION_BROKEN:
625 			case SCF_ERROR_DELETED:
626 			default:
627 				goto out;
628 
629 			case SCF_ERROR_HANDLE_MISMATCH:
630 			case SCF_ERROR_INVALID_ARGUMENT:
631 			case SCF_ERROR_NOT_BOUND:
632 			case SCF_ERROR_NOT_SET:
633 				bad_error("transaction_property_set",
634 				    scf_error());
635 			}
636 		}
637 
638 		scf_value_set_boolean(v, desired);
639 		if (scf_entry_add_value(ent, v) == -1)
640 			goto out;
641 
642 		committed = scf_transaction_commit(tx);
643 		if (committed == -1)
644 			goto out;
645 
646 		scf_transaction_reset(tx);
647 
648 		if (committed == 0) { /* out-of-sync */
649 			if (scf_pg_update(gpg) == -1)
650 				goto out;
651 		}
652 	} while (committed == 0);
653 
654 	ret = 0;
655 
656 out:
657 	scf_value_destroy(v);
658 	scf_entry_destroy(ent);
659 	scf_transaction_destroy(tx);
660 	scf_property_destroy(eprop);
661 	scf_pg_destroy(gpg);
662 
663 	return (ret);
664 }
665 
666 static int
667 delete_inst_enabled(const scf_instance_t *inst, const char *pgname)
668 {
669 	scf_transaction_t 	*tx = NULL;
670 	scf_transaction_entry_t *ent = NULL;
671 	scf_propertygroup_t 	*gpg = NULL;
672 	scf_handle_t		*h = NULL;
673 	int			ret = -1;
674 	int			committed;
675 
676 	if ((h = scf_instance_handle(inst)) == NULL)
677 		return (-1);
678 
679 	if ((gpg = scf_pg_create(h)) == NULL ||
680 	    (tx = scf_transaction_create(h)) == NULL ||
681 	    (ent = scf_entry_create(h)) == NULL)
682 		goto out;
683 
684 	if (scf_instance_get_pg(inst, pgname, gpg) != 0)
685 		goto error;
686 	do {
687 		if (scf_transaction_start(tx, gpg) == -1 ||
688 		    scf_transaction_property_delete(tx, ent,
689 		    SCF_PROPERTY_ENABLED) == -1 ||
690 		    (committed = scf_transaction_commit(tx)) == -1)
691 			goto error;
692 
693 		scf_transaction_reset(tx);
694 
695 		if (committed == 0 && scf_pg_update(gpg) == -1)
696 			goto error;
697 	} while (committed == 0);
698 
699 	ret = 0;
700 	goto out;
701 
702 error:
703 	switch (scf_error()) {
704 	case SCF_ERROR_DELETED:
705 	case SCF_ERROR_NOT_FOUND:
706 		/* success */
707 		ret = 0;
708 	}
709 
710 out:
711 	scf_entry_destroy(ent);
712 	scf_transaction_destroy(tx);
713 	scf_pg_destroy(gpg);
714 
715 	return (ret);
716 }
717 
718 /*
719  * Returns 0 on success or -1 on failure.  On failure leaves scf_error() set to
720  *   SCF_ERROR_HANDLE_DESTROYED - inst's handle has been destroyed
721  *   SCF_ERROR_NOT_BOUND - inst's handle is not bound
722  *   SCF_ERROR_CONNECTION_BROKEN - the repository connection was broken
723  *   SCF_ERROR_NOT_SET - inst is not set
724  *   SCF_ERROR_DELETED - inst was deleted
725  *   SCF_ERROR_PERMISSION_DENIED
726  *   SCF_ERROR_BACKEND_ACCESS
727  *   SCF_ERROR_BACKEND_READONLY
728  */
729 static int
730 set_inst_action_inst(scf_instance_t *inst, const char *action)
731 {
732 	scf_handle_t			*h;
733 	scf_transaction_t		*tx = NULL;
734 	scf_transaction_entry_t		*ent = NULL;
735 	scf_propertygroup_t		*pg = NULL;
736 	scf_property_t			*prop = NULL;
737 	scf_value_t			*v = NULL;
738 	int				trans, ret = -1;
739 	int64_t				t;
740 	hrtime_t			timestamp;
741 
742 	if ((h = scf_instance_handle(inst)) == NULL ||
743 	    (pg = scf_pg_create(h)) == NULL ||
744 	    (prop = scf_property_create(h)) == NULL ||
745 	    (v = scf_value_create(h)) == NULL ||
746 	    (tx = scf_transaction_create(h)) == NULL ||
747 	    (ent = scf_entry_create(h)) == NULL)
748 		goto out;
749 
750 get:
751 	if (scf_instance_get_pg(inst, SCF_PG_RESTARTER_ACTIONS, pg) == -1) {
752 		switch (scf_error()) {
753 		case SCF_ERROR_NOT_BOUND:
754 		case SCF_ERROR_CONNECTION_BROKEN:
755 		case SCF_ERROR_NOT_SET:
756 		case SCF_ERROR_DELETED:
757 		default:
758 			goto out;
759 
760 		case SCF_ERROR_NOT_FOUND:
761 			break;
762 
763 		case SCF_ERROR_HANDLE_MISMATCH:
764 		case SCF_ERROR_INVALID_ARGUMENT:
765 			bad_error("scf_instance_get_pg", scf_error());
766 		}
767 
768 		/* Try creating the restarter_actions property group. */
769 add:
770 		if (scf_instance_add_pg(inst, SCF_PG_RESTARTER_ACTIONS,
771 		    SCF_PG_RESTARTER_ACTIONS_TYPE,
772 		    SCF_PG_RESTARTER_ACTIONS_FLAGS, pg) == -1) {
773 			switch (scf_error()) {
774 			case SCF_ERROR_NOT_BOUND:
775 			case SCF_ERROR_CONNECTION_BROKEN:
776 			case SCF_ERROR_NOT_SET:
777 			case SCF_ERROR_DELETED:
778 			case SCF_ERROR_PERMISSION_DENIED:
779 			case SCF_ERROR_BACKEND_ACCESS:
780 			case SCF_ERROR_BACKEND_READONLY:
781 			default:
782 				goto out;
783 
784 			case SCF_ERROR_EXISTS:
785 				goto get;
786 
787 			case SCF_ERROR_HANDLE_MISMATCH:
788 			case SCF_ERROR_INVALID_ARGUMENT:
789 				bad_error("scf_instance_add_pg", scf_error());
790 			}
791 		}
792 	}
793 
794 	for (;;) {
795 		timestamp = gethrtime();
796 
797 		if (scf_pg_get_property(pg, action, prop) != 0) {
798 			switch (scf_error()) {
799 			case SCF_ERROR_CONNECTION_BROKEN:
800 			default:
801 				goto out;
802 
803 			case SCF_ERROR_DELETED:
804 				goto add;
805 
806 			case SCF_ERROR_NOT_FOUND:
807 				break;
808 
809 			case SCF_ERROR_HANDLE_MISMATCH:
810 			case SCF_ERROR_INVALID_ARGUMENT:
811 			case SCF_ERROR_NOT_BOUND:
812 			case SCF_ERROR_NOT_SET:
813 				bad_error("scf_pg_get_property", scf_error());
814 			}
815 		} else if (scf_property_get_value(prop, v) != 0) {
816 			switch (scf_error()) {
817 			case SCF_ERROR_CONNECTION_BROKEN:
818 			default:
819 				goto out;
820 
821 			case SCF_ERROR_DELETED:
822 				goto add;
823 
824 			case SCF_ERROR_CONSTRAINT_VIOLATED:
825 			case SCF_ERROR_NOT_FOUND:
826 				break;
827 
828 			case SCF_ERROR_HANDLE_MISMATCH:
829 			case SCF_ERROR_NOT_BOUND:
830 			case SCF_ERROR_NOT_SET:
831 				bad_error("scf_property_get_value",
832 				    scf_error());
833 			}
834 		} else if (scf_value_get_integer(v, &t) != 0) {
835 			bad_error("scf_value_get_integer", scf_error());
836 		} else if (t > timestamp) {
837 			break;
838 		}
839 
840 		if (scf_transaction_start(tx, pg) == -1) {
841 			switch (scf_error()) {
842 			case SCF_ERROR_NOT_BOUND:
843 			case SCF_ERROR_CONNECTION_BROKEN:
844 			case SCF_ERROR_PERMISSION_DENIED:
845 			case SCF_ERROR_BACKEND_ACCESS:
846 			case SCF_ERROR_BACKEND_READONLY:
847 			default:
848 				goto out;
849 
850 			case SCF_ERROR_DELETED:
851 				goto add;
852 
853 			case SCF_ERROR_HANDLE_MISMATCH:
854 			case SCF_ERROR_NOT_SET:
855 			case SCF_ERROR_IN_USE:
856 				bad_error("scf_transaction_start", scf_error());
857 			}
858 		}
859 
860 		if (transaction_property_set(tx, ent, action,
861 		    SCF_TYPE_INTEGER) != 0) {
862 			switch (scf_error()) {
863 			case SCF_ERROR_NOT_BOUND:
864 			case SCF_ERROR_CONNECTION_BROKEN:
865 			case SCF_ERROR_DELETED:
866 			default:
867 				goto out;
868 
869 			case SCF_ERROR_HANDLE_MISMATCH:
870 			case SCF_ERROR_INVALID_ARGUMENT:
871 			case SCF_ERROR_NOT_SET:
872 				bad_error("transaction_property_set",
873 				    scf_error());
874 			}
875 		}
876 
877 		scf_value_set_integer(v, timestamp);
878 		if (scf_entry_add_value(ent, v) == -1)
879 			bad_error("scf_entry_add_value", scf_error());
880 
881 		trans = scf_transaction_commit(tx);
882 		if (trans == 1)
883 			break;
884 
885 		if (trans != 0) {
886 			switch (scf_error()) {
887 			case SCF_ERROR_CONNECTION_BROKEN:
888 			case SCF_ERROR_PERMISSION_DENIED:
889 			case SCF_ERROR_BACKEND_ACCESS:
890 			case SCF_ERROR_BACKEND_READONLY:
891 			default:
892 				goto out;
893 
894 			case SCF_ERROR_DELETED:
895 				scf_transaction_reset(tx);
896 				goto add;
897 
898 			case SCF_ERROR_INVALID_ARGUMENT:
899 			case SCF_ERROR_NOT_BOUND:
900 			case SCF_ERROR_NOT_SET:
901 				bad_error("scf_transaction_commit",
902 				    scf_error());
903 			}
904 		}
905 
906 		scf_transaction_reset(tx);
907 		if (scf_pg_update(pg) == -1) {
908 			switch (scf_error()) {
909 			case SCF_ERROR_CONNECTION_BROKEN:
910 			default:
911 				goto out;
912 
913 			case SCF_ERROR_DELETED:
914 				goto add;
915 
916 			case SCF_ERROR_NOT_SET:
917 			case SCF_ERROR_NOT_BOUND:
918 				bad_error("scf_pg_update", scf_error());
919 			}
920 		}
921 	}
922 
923 	ret = 0;
924 
925 out:
926 	scf_value_destroy(v);
927 	scf_entry_destroy(ent);
928 	scf_transaction_destroy(tx);
929 	scf_property_destroy(prop);
930 	scf_pg_destroy(pg);
931 	return (ret);
932 }
933 
934 static int
935 set_inst_action(const char *fmri, const char *action)
936 {
937 	scf_handle_t *h;
938 	scf_instance_t *inst;
939 	int ret = -1;
940 
941 	h = handle_create();
942 	if (h == NULL)
943 		return (-1);
944 
945 	inst = scf_instance_create(h);
946 
947 	if (inst != NULL) {
948 		if (scf_handle_decode_fmri(h, fmri, NULL, NULL, inst, NULL,
949 		    NULL, SCF_DECODE_FMRI_EXACT) == 0)
950 			ret = set_inst_action_inst(inst, action);
951 		else if (scf_error() == SCF_ERROR_CONSTRAINT_VIOLATED)
952 			(void) scf_set_error(SCF_ERROR_INVALID_ARGUMENT);
953 
954 		scf_instance_destroy(inst);
955 	}
956 
957 	scf_handle_destroy(h);
958 
959 	return (ret);
960 }
961 
962 
963 /*
964  * get_inst_state() gets the state string from an instance, and returns
965  * the SCF_STATE_* constant that coincides with the instance's current state.
966  */
967 
968 static int
969 get_inst_state(scf_instance_t *inst, scf_handle_t *h)
970 {
971 	scf_propertygroup_t	*pg = NULL;
972 	scf_property_t		*prop = NULL;
973 	scf_value_t		*val = NULL;
974 	char			state[MAX_SCF_STATE_STRING_SZ];
975 	int			ret = -1;
976 
977 	if (((pg = scf_pg_create(h)) == NULL) ||
978 	    ((prop = scf_property_create(h)) == NULL) ||
979 	    ((val = scf_value_create(h)) == NULL))
980 		goto out;
981 
982 	/* Pull the state property from the instance */
983 
984 	if (scf_instance_get_pg(inst, SCF_PG_RESTARTER, pg) == -1 ||
985 	    scf_pg_get_property(pg, SCF_PROPERTY_STATE, prop) == -1 ||
986 	    scf_property_get_value(prop, val) == -1) {
987 		if (scf_error() != SCF_ERROR_CONNECTION_BROKEN)
988 			(void) scf_set_error(SCF_ERROR_INTERNAL);
989 		goto out;
990 	}
991 
992 	if (scf_value_get_astring(val, state, sizeof (state)) <= 0) {
993 		(void) scf_set_error(SCF_ERROR_INTERNAL);
994 		goto out;
995 	}
996 
997 	if (strcmp(state, SCF_STATE_STRING_UNINIT) == 0) {
998 		ret = SCF_STATE_UNINIT;
999 	} else if (strcmp(state, SCF_STATE_STRING_MAINT) == 0) {
1000 		ret = SCF_STATE_MAINT;
1001 	} else if (strcmp(state, SCF_STATE_STRING_OFFLINE) == 0) {
1002 		ret = SCF_STATE_OFFLINE;
1003 	} else if (strcmp(state, SCF_STATE_STRING_DISABLED) == 0) {
1004 		ret = SCF_STATE_DISABLED;
1005 	} else if (strcmp(state, SCF_STATE_STRING_ONLINE) == 0) {
1006 		ret = SCF_STATE_ONLINE;
1007 	} else if (strcmp(state, SCF_STATE_STRING_DEGRADED) == 0) {
1008 		ret = SCF_STATE_DEGRADED;
1009 	}
1010 
1011 out:
1012 	scf_pg_destroy(pg);
1013 	scf_property_destroy(prop);
1014 	(void) scf_value_destroy(val);
1015 
1016 	return (ret);
1017 }
1018 
1019 /*
1020  * Sets an instance to be enabled or disabled after reboot, using the
1021  * temporary (overriding) general_ovr property group to reflect the
1022  * present state, if it is different.
1023  */
1024 static int
1025 set_inst_enabled_atboot(scf_instance_t *inst, uint8_t desired)
1026 {
1027 	int enabled;
1028 	int persistent;
1029 	int ret = -1;
1030 
1031 	if ((persistent = get_inst_enabled(inst, SCF_PG_GENERAL)) < 0) {
1032 		if (scf_error() != SCF_ERROR_NOT_FOUND)
1033 			goto out;
1034 		persistent = B_FALSE;
1035 	}
1036 	if ((enabled = get_inst_enabled(inst, SCF_PG_GENERAL_OVR)) < 0) {
1037 		enabled = persistent;
1038 		if (persistent != desired) {
1039 			/*
1040 			 * Temporarily store the present enabled state.
1041 			 */
1042 			if (set_inst_enabled(inst, persistent,
1043 			    SCF_PG_GENERAL_OVR, SCF_PG_GENERAL_OVR_FLAGS))
1044 				goto out;
1045 		}
1046 	}
1047 	if (persistent != desired)
1048 		if (set_inst_enabled(inst, desired, SCF_PG_GENERAL,
1049 		    SCF_PG_GENERAL_FLAGS))
1050 			goto out;
1051 	if (enabled == desired)
1052 		ret = delete_inst_enabled(inst, SCF_PG_GENERAL_OVR);
1053 	else
1054 		ret = 0;
1055 
1056 out:
1057 	return (ret);
1058 }
1059 
1060 static int
1061 set_inst_enabled_flags(const char *fmri, int flags, uint8_t desired)
1062 {
1063 	int ret = -1;
1064 	scf_handle_t *h;
1065 	scf_instance_t *inst;
1066 
1067 	if (flags & ~(SMF_TEMPORARY | SMF_AT_NEXT_BOOT) ||
1068 	    flags & SMF_TEMPORARY && flags & SMF_AT_NEXT_BOOT) {
1069 		(void) scf_set_error(SCF_ERROR_INVALID_ARGUMENT);
1070 		return (ret);
1071 	}
1072 
1073 	if ((h = handle_create()) == NULL)
1074 		return (ret);
1075 
1076 	if ((inst = scf_instance_create(h)) == NULL) {
1077 		scf_handle_destroy(h);
1078 		return (ret);
1079 	}
1080 
1081 	if (scf_handle_decode_fmri(h, fmri, NULL, NULL, inst, NULL, NULL,
1082 	    SCF_DECODE_FMRI_EXACT) == -1) {
1083 		if (scf_error() == SCF_ERROR_CONSTRAINT_VIOLATED)
1084 			(void) scf_set_error(SCF_ERROR_INVALID_ARGUMENT);
1085 		goto out;
1086 	}
1087 
1088 	if (flags & SMF_AT_NEXT_BOOT) {
1089 		ret = set_inst_enabled_atboot(inst, desired);
1090 	} else {
1091 		if (set_inst_enabled(inst, desired, flags & SMF_TEMPORARY ?
1092 		    SCF_PG_GENERAL_OVR : SCF_PG_GENERAL, flags & SMF_TEMPORARY ?
1093 		    SCF_PG_GENERAL_OVR_FLAGS : SCF_PG_GENERAL_FLAGS))
1094 			goto out;
1095 
1096 		/*
1097 		 * Make the persistent value effective by deleting the
1098 		 * temporary one.
1099 		 */
1100 		if (flags & SMF_TEMPORARY)
1101 			ret = 0;
1102 		else
1103 			ret = delete_inst_enabled(inst, SCF_PG_GENERAL_OVR);
1104 	}
1105 
1106 out:
1107 	scf_instance_destroy(inst);
1108 	scf_handle_destroy(h);
1109 	return (ret);
1110 }
1111 
1112 /*
1113  * Create and return a pg from the instance associated with the given handle.
1114  * This function is only called in scf_transaction_setup and
1115  * scf_transaction_restart where the h->rh_instance pointer is properly filled
1116  * in by scf_general_setup_pg().
1117  */
1118 static scf_propertygroup_t *
1119 get_instance_pg(scf_simple_handle_t *simple_h)
1120 {
1121 	scf_propertygroup_t	*ret_pg = scf_pg_create(simple_h->h);
1122 	char			*pg_name;
1123 	ssize_t			namelen;
1124 
1125 	if (ret_pg == NULL) {
1126 		return (NULL);
1127 	}
1128 
1129 	if ((namelen = scf_limit(SCF_LIMIT_MAX_NAME_LENGTH)) == -1) {
1130 		if (scf_error() == SCF_ERROR_NOT_SET) {
1131 			(void) scf_set_error(SCF_ERROR_INTERNAL);
1132 		}
1133 		return (NULL);
1134 	}
1135 
1136 	if ((pg_name = malloc(namelen)) == NULL) {
1137 		if (scf_error() == SCF_ERROR_NOT_SET) {
1138 			(void) scf_set_error(SCF_ERROR_NO_MEMORY);
1139 		}
1140 		return (NULL);
1141 	}
1142 
1143 	if (scf_pg_get_name(simple_h->running_pg, pg_name, namelen) < 0) {
1144 		if (scf_error() == SCF_ERROR_NOT_SET) {
1145 			(void) scf_set_error(SCF_ERROR_INTERNAL);
1146 		}
1147 		return (NULL);
1148 	}
1149 
1150 	/* Get pg from instance */
1151 	if (scf_instance_get_pg(simple_h->inst, pg_name, ret_pg) == -1) {
1152 		return (NULL);
1153 	}
1154 
1155 	return (ret_pg);
1156 }
1157 
1158 int
1159 smf_enable_instance(const char *fmri, int flags)
1160 {
1161 	return (set_inst_enabled_flags(fmri, flags, B_TRUE));
1162 }
1163 
1164 int
1165 smf_disable_instance(const char *fmri, int flags)
1166 {
1167 	return (set_inst_enabled_flags(fmri, flags, B_FALSE));
1168 }
1169 
1170 int
1171 _smf_refresh_instance_i(scf_instance_t *inst)
1172 {
1173 	return (set_inst_action_inst(inst, SCF_PROPERTY_REFRESH));
1174 }
1175 
1176 int
1177 smf_refresh_instance(const char *instance)
1178 {
1179 	return (set_inst_action(instance, SCF_PROPERTY_REFRESH));
1180 }
1181 
1182 int
1183 smf_restart_instance(const char *instance)
1184 {
1185 	return (set_inst_action(instance, SCF_PROPERTY_RESTART));
1186 }
1187 
1188 int
1189 smf_maintain_instance(const char *instance, int flags)
1190 {
1191 	if (flags & SMF_TEMPORARY)
1192 		return (set_inst_action(instance,
1193 		    (flags & SMF_IMMEDIATE) ?
1194 		    SCF_PROPERTY_MAINT_ON_IMMTEMP :
1195 		    SCF_PROPERTY_MAINT_ON_TEMPORARY));
1196 	else
1197 		return (set_inst_action(instance,
1198 		    (flags & SMF_IMMEDIATE) ?
1199 		    SCF_PROPERTY_MAINT_ON_IMMEDIATE :
1200 		    SCF_PROPERTY_MAINT_ON));
1201 }
1202 
1203 int
1204 smf_degrade_instance(const char *instance, int flags)
1205 {
1206 	scf_simple_prop_t		*prop;
1207 	const char			*state_str;
1208 
1209 	if (flags & SMF_TEMPORARY)
1210 		return (scf_set_error(SCF_ERROR_INVALID_ARGUMENT));
1211 
1212 	if ((prop = scf_simple_prop_get(NULL, instance, SCF_PG_RESTARTER,
1213 	    SCF_PROPERTY_STATE)) == NULL)
1214 		return (SCF_FAILED);
1215 
1216 	if ((state_str = scf_simple_prop_next_astring(prop)) == NULL) {
1217 		scf_simple_prop_free(prop);
1218 		return (SCF_FAILED);
1219 	}
1220 
1221 	if (strcmp(state_str, SCF_STATE_STRING_ONLINE) != 0) {
1222 		scf_simple_prop_free(prop);
1223 		return (scf_set_error(SCF_ERROR_CONSTRAINT_VIOLATED));
1224 	}
1225 	scf_simple_prop_free(prop);
1226 
1227 	return (set_inst_action(instance, (flags & SMF_IMMEDIATE) ?
1228 	    SCF_PROPERTY_DEGRADE_IMMEDIATE : SCF_PROPERTY_DEGRADED));
1229 }
1230 
1231 int
1232 smf_restore_instance(const char *instance)
1233 {
1234 	scf_simple_prop_t		*prop;
1235 	const char			*state_str;
1236 	int				ret;
1237 
1238 	if ((prop = scf_simple_prop_get(NULL, instance, SCF_PG_RESTARTER,
1239 	    SCF_PROPERTY_STATE)) == NULL)
1240 		return (SCF_FAILED);
1241 
1242 	if ((state_str = scf_simple_prop_next_astring(prop)) == NULL) {
1243 		scf_simple_prop_free(prop);
1244 		return (SCF_FAILED);
1245 	}
1246 
1247 	if (strcmp(state_str, SCF_STATE_STRING_MAINT) == 0) {
1248 		ret = set_inst_action(instance, SCF_PROPERTY_MAINT_OFF);
1249 	} else if (strcmp(state_str, SCF_STATE_STRING_DEGRADED) == 0) {
1250 		ret = set_inst_action(instance, SCF_PROPERTY_RESTORE);
1251 	} else {
1252 		ret = scf_set_error(SCF_ERROR_CONSTRAINT_VIOLATED);
1253 	}
1254 
1255 	scf_simple_prop_free(prop);
1256 	return (ret);
1257 }
1258 
1259 char *
1260 smf_get_state(const char *instance)
1261 {
1262 	scf_simple_prop_t		*prop;
1263 	const char			*state_str;
1264 	char				*ret;
1265 
1266 	if ((prop = scf_simple_prop_get(NULL, instance, SCF_PG_RESTARTER,
1267 	    SCF_PROPERTY_STATE)) == NULL)
1268 		return (NULL);
1269 
1270 	if ((state_str = scf_simple_prop_next_astring(prop)) == NULL) {
1271 		scf_simple_prop_free(prop);
1272 		return (NULL);
1273 	}
1274 
1275 	if ((ret = strdup(state_str)) == NULL)
1276 		(void) scf_set_error(SCF_ERROR_NO_MEMORY);
1277 
1278 	scf_simple_prop_free(prop);
1279 	return (ret);
1280 }
1281 
1282 /*
1283  * scf_general_pg_setup(fmri, pg_name)
1284  * Create a scf_simple_handle_t and fill in the instance, snapshot, and
1285  * property group fields associated with the given fmri and property group
1286  * name.
1287  * Returns:
1288  *      Handle  on success
1289  *      Null  on error with scf_error set to:
1290  *              SCF_ERROR_HANDLE_MISMATCH,
1291  *              SCF_ERROR_INVALID_ARGUMENT,
1292  *              SCF_ERROR_CONSTRAINT_VIOLATED,
1293  *              SCF_ERROR_NOT_FOUND,
1294  *              SCF_ERROR_NOT_SET,
1295  *              SCF_ERROR_DELETED,
1296  *              SCF_ERROR_NOT_BOUND,
1297  *              SCF_ERROR_CONNECTION_BROKEN,
1298  *              SCF_ERROR_INTERNAL,
1299  *              SCF_ERROR_NO_RESOURCES,
1300  *              SCF_ERROR_BACKEND_ACCESS
1301  */
1302 scf_simple_handle_t *
1303 scf_general_pg_setup(const char *fmri, const char *pg_name)
1304 {
1305 	scf_simple_handle_t	*ret;
1306 
1307 	ret = uu_zalloc(sizeof (*ret));
1308 	if (ret == NULL) {
1309 		(void) scf_set_error(SCF_ERROR_NO_MEMORY);
1310 		return (NULL);
1311 	} else {
1312 
1313 		ret->h = handle_create();
1314 		ret->inst = scf_instance_create(ret->h);
1315 		ret->snap = scf_snapshot_create(ret->h);
1316 		ret->running_pg = scf_pg_create(ret->h);
1317 	}
1318 
1319 	if ((ret->h == NULL) || (ret->inst == NULL) ||
1320 	    (ret->snap == NULL) || (ret->running_pg == NULL)) {
1321 		goto out;
1322 	}
1323 
1324 	if (scf_handle_decode_fmri(ret->h, fmri, NULL, NULL, ret->inst,
1325 	    NULL, NULL, NULL) == -1) {
1326 		goto out;
1327 	}
1328 
1329 	if ((scf_instance_get_snapshot(ret->inst, "running", ret->snap))
1330 	    != 0) {
1331 		goto out;
1332 	}
1333 
1334 	if (scf_instance_get_pg_composed(ret->inst, ret->snap, pg_name,
1335 	    ret->running_pg) != 0) {
1336 		goto out;
1337 	}
1338 
1339 	return (ret);
1340 
1341 out:
1342 	scf_simple_handle_destroy(ret);
1343 	return (NULL);
1344 }
1345 
1346 /*
1347  * scf_transaction_setup(h)
1348  * creates and starts the transaction
1349  * Returns:
1350  *      transaction  on success
1351  *      NULL on failure with scf_error set to:
1352  *      SCF_ERROR_NO_MEMORY,
1353  *	SCF_ERROR_INVALID_ARGUMENT,
1354  *      SCF_ERROR_HANDLE_DESTROYED,
1355  *	SCF_ERROR_INTERNAL,
1356  *	SCF_ERROR_NO_RESOURCES,
1357  *      SCF_ERROR_NOT_BOUND,
1358  *	SCF_ERROR_CONNECTION_BROKEN,
1359  *      SCF_ERROR_NOT_SET,
1360  *	SCF_ERROR_DELETED,
1361  *	SCF_ERROR_CONSTRAINT_VIOLATED,
1362  *      SCF_ERROR_HANDLE_MISMATCH,
1363  *	SCF_ERROR_BACKEND_ACCESS,
1364  *	SCF_ERROR_IN_USE
1365  */
1366 scf_transaction_t *
1367 scf_transaction_setup(scf_simple_handle_t *simple_h)
1368 {
1369 	scf_transaction_t	*tx = NULL;
1370 
1371 	if ((tx = scf_transaction_create(simple_h->h)) == NULL) {
1372 		return (NULL);
1373 	}
1374 
1375 	if ((simple_h->editing_pg = get_instance_pg(simple_h)) == NULL) {
1376 		return (NULL);
1377 	}
1378 
1379 	if (scf_transaction_start(tx, simple_h->editing_pg) == -1) {
1380 		scf_pg_destroy(simple_h->editing_pg);
1381 		simple_h->editing_pg = NULL;
1382 		return (NULL);
1383 	}
1384 
1385 	return (tx);
1386 }
1387 
1388 int
1389 scf_transaction_restart(scf_simple_handle_t *simple_h, scf_transaction_t *tx)
1390 {
1391 	scf_transaction_reset(tx);
1392 
1393 	if (scf_pg_update(simple_h->editing_pg) == -1) {
1394 		return (SCF_FAILED);
1395 	}
1396 
1397 	if (scf_transaction_start(tx, simple_h->editing_pg) == -1) {
1398 		return (SCF_FAILED);
1399 	}
1400 
1401 	return (SCF_SUCCESS);
1402 }
1403 
1404 /*
1405  * scf_read_count_property(scf_simple_handle_t *simple_h, char *prop_name,
1406  * uint64_t *ret_count)
1407  *
1408  * For the given property name, return the count value.
1409  * RETURNS:
1410  *	SCF_SUCCESS
1411  *	SCF_FAILED on failure with scf_error() set to:
1412  *		SCF_ERROR_HANDLE_DESTROYED
1413  *		SCF_ERROR_INTERNAL
1414  *		SCF_ERROR_NO_RESOURCES
1415  *		SCF_ERROR_NO_MEMORY
1416  *		SCF_ERROR_HANDLE_MISMATCH
1417  *		SCF_ERROR_INVALID_ARGUMENT
1418  *		SCF_ERROR_NOT_BOUND
1419  *		SCF_ERROR_CONNECTION_BROKEN
1420  *		SCF_ERROR_NOT_SET
1421  *		SCF_ERROR_DELETED
1422  *		SCF_ERROR_BACKEND_ACCESS
1423  *		SCF_ERROR_CONSTRAINT_VIOLATED
1424  *		SCF_ERROR_TYPE_MISMATCH
1425  */
1426 int
1427 scf_read_count_property(
1428 	scf_simple_handle_t	*simple_h,
1429 	char			*prop_name,
1430 	uint64_t		*ret_count)
1431 {
1432 	scf_property_t		*prop = scf_property_create(simple_h->h);
1433 	scf_value_t		*val = scf_value_create(simple_h->h);
1434 	int			ret = SCF_FAILED;
1435 
1436 	if ((val == NULL) || (prop == NULL)) {
1437 		goto out;
1438 	}
1439 
1440 	/*
1441 	 * Get the property struct that goes with this property group and
1442 	 * property name.
1443 	 */
1444 	if (scf_pg_get_property(simple_h->running_pg, prop_name, prop) != 0) {
1445 		goto out;
1446 	}
1447 
1448 	/* Get the value structure */
1449 	if (scf_property_get_value(prop, val) == -1) {
1450 		goto out;
1451 	}
1452 
1453 	/*
1454 	 * Now get the count value.
1455 	 */
1456 	if (scf_value_get_count(val, ret_count) == -1) {
1457 		goto out;
1458 	}
1459 
1460 	ret = SCF_SUCCESS;
1461 
1462 out:
1463 	scf_property_destroy(prop);
1464 	scf_value_destroy(val);
1465 	return (ret);
1466 }
1467 
1468 /*
1469  * scf_trans_add_count_property(trans, propname, count, create_flag)
1470  *
1471  * Set a count property transaction entry into the pending SMF transaction.
1472  * The transaction is created and committed outside of this function.
1473  * Returns:
1474  *	SCF_SUCCESS
1475  *	SCF_FAILED on failure with scf_error() set to:
1476  *			SCF_ERROR_HANDLE_DESTROYED,
1477  *			SCF_ERROR_INVALID_ARGUMENT,
1478  *			SCF_ERROR_NO_MEMORY,
1479  *			SCF_ERROR_HANDLE_MISMATCH,
1480  *			SCF_ERROR_NOT_SET,
1481  *			SCF_ERROR_IN_USE,
1482  *			SCF_ERROR_NOT_FOUND,
1483  *			SCF_ERROR_EXISTS,
1484  *			SCF_ERROR_TYPE_MISMATCH,
1485  *			SCF_ERROR_NOT_BOUND,
1486  *			SCF_ERROR_CONNECTION_BROKEN,
1487  *			SCF_ERROR_INTERNAL,
1488  *			SCF_ERROR_DELETED,
1489  *			SCF_ERROR_NO_RESOURCES,
1490  *			SCF_ERROR_BACKEND_ACCESS
1491  */
1492 int
1493 scf_set_count_property(
1494 	scf_transaction_t	*trans,
1495 	char			*propname,
1496 	uint64_t		count,
1497 	boolean_t		create_flag)
1498 {
1499 	scf_handle_t		*handle = scf_transaction_handle(trans);
1500 	scf_value_t		*value = scf_value_create(handle);
1501 	scf_transaction_entry_t	*entry = scf_entry_create(handle);
1502 
1503 	if ((value == NULL) || (entry == NULL)) {
1504 		return (SCF_FAILED);
1505 	}
1506 
1507 	/*
1508 	 * Property must be set in transaction and won't take
1509 	 * effect until the transaction is committed.
1510 	 *
1511 	 * Attempt to change the current value. However, create new property
1512 	 * if it doesn't exist and the create flag is set.
1513 	 */
1514 	if (scf_transaction_property_change(trans, entry, propname,
1515 	    SCF_TYPE_COUNT) == 0) {
1516 		scf_value_set_count(value, count);
1517 		if (scf_entry_add_value(entry, value) == 0) {
1518 			return (SCF_SUCCESS);
1519 		}
1520 	} else {
1521 		if ((create_flag == B_TRUE) &&
1522 		    (scf_error() == SCF_ERROR_NOT_FOUND)) {
1523 			if (scf_transaction_property_new(trans, entry, propname,
1524 			    SCF_TYPE_COUNT) == 0) {
1525 				scf_value_set_count(value, count);
1526 				if (scf_entry_add_value(entry, value) == 0) {
1527 					return (SCF_SUCCESS);
1528 				}
1529 			}
1530 		}
1531 	}
1532 
1533 	/*
1534 	 * cleanup if there were any errors that didn't leave these
1535 	 * values where they would be cleaned up later.
1536 	 */
1537 	if (value != NULL)
1538 		scf_value_destroy(value);
1539 	if (entry != NULL)
1540 		scf_entry_destroy(entry);
1541 	return (SCF_FAILED);
1542 }
1543 
1544 int
1545 scf_simple_walk_instances(uint_t state_flags, void *private,
1546     int (*inst_callback)(scf_handle_t *, scf_instance_t *, void *))
1547 {
1548 	scf_scope_t 		*scope = NULL;
1549 	scf_service_t		*svc = NULL;
1550 	scf_instance_t		*inst = NULL;
1551 	scf_iter_t		*svc_iter = NULL, *inst_iter = NULL;
1552 	scf_handle_t		*h = NULL;
1553 	int			ret = SCF_FAILED;
1554 	int			svc_iter_ret, inst_iter_ret;
1555 	int			inst_state;
1556 
1557 	if ((h = handle_create()) == NULL)
1558 		return (ret);
1559 
1560 	if (((scope = scf_scope_create(h)) == NULL) ||
1561 	    ((svc = scf_service_create(h)) == NULL) ||
1562 	    ((inst = scf_instance_create(h)) == NULL) ||
1563 	    ((svc_iter = scf_iter_create(h)) == NULL) ||
1564 	    ((inst_iter = scf_iter_create(h)) == NULL))
1565 		goto out;
1566 
1567 	/*
1568 	 * Get the local scope, and set up nested iteration through every
1569 	 * local service, and every instance of every service.
1570 	 */
1571 
1572 	if ((scf_handle_get_local_scope(h, scope) != SCF_SUCCESS) ||
1573 	    (scf_iter_scope_services(svc_iter, scope) != SCF_SUCCESS))
1574 		goto out;
1575 
1576 	while ((svc_iter_ret = scf_iter_next_service(svc_iter, svc)) > 0) {
1577 
1578 		if ((scf_iter_service_instances(inst_iter, svc)) !=
1579 		    SCF_SUCCESS)
1580 			goto out;
1581 
1582 		while ((inst_iter_ret =
1583 		    scf_iter_next_instance(inst_iter, inst)) > 0) {
1584 			/*
1585 			 * If get_inst_state fails from an internal error,
1586 			 * IE, being unable to get the property group or
1587 			 * property containing the state of the instance,
1588 			 * we continue instead of failing, as this might just
1589 			 * be an improperly configured instance.
1590 			 */
1591 			if ((inst_state = get_inst_state(inst, h)) == -1) {
1592 				if (scf_error() == SCF_ERROR_INTERNAL) {
1593 					continue;
1594 				} else {
1595 					goto out;
1596 				}
1597 			}
1598 
1599 			if ((uint_t)inst_state & state_flags) {
1600 				if (inst_callback(h, inst, private) !=
1601 				    SCF_SUCCESS) {
1602 					(void) scf_set_error(
1603 					    SCF_ERROR_CALLBACK_FAILED);
1604 					goto out;
1605 				}
1606 			}
1607 		}
1608 
1609 		if (inst_iter_ret == -1)
1610 			goto out;
1611 		scf_iter_reset(inst_iter);
1612 	}
1613 
1614 	if (svc_iter_ret != -1)
1615 		ret = SCF_SUCCESS;
1616 
1617 out:
1618 	scf_scope_destroy(scope);
1619 	scf_service_destroy(svc);
1620 	scf_instance_destroy(inst);
1621 	scf_iter_destroy(svc_iter);
1622 	scf_iter_destroy(inst_iter);
1623 	scf_handle_destroy(h);
1624 
1625 	return (ret);
1626 }
1627 
1628 
1629 scf_simple_prop_t *
1630 scf_simple_prop_get(scf_handle_t *hin, const char *instance, const char *pgname,
1631 			const char *propname)
1632 {
1633 	char 			*fmri_buf, *svcfmri = NULL;
1634 	ssize_t 		fmri_sz;
1635 	scf_property_t 		*prop = NULL;
1636 	scf_service_t 		*svc = NULL;
1637 	scf_simple_prop_t 	*ret;
1638 	scf_handle_t		*h = NULL;
1639 	boolean_t		local_h = B_TRUE;
1640 
1641 	/* If the user passed in a handle, use it. */
1642 	if (hin != NULL) {
1643 		h = hin;
1644 		local_h = B_FALSE;
1645 	}
1646 
1647 	if (local_h && ((h = handle_create()) == NULL))
1648 		return (NULL);
1649 
1650 	if ((fmri_buf = assemble_fmri(h, instance, pgname, propname)) == NULL) {
1651 		if (local_h)
1652 			scf_handle_destroy(h);
1653 		return (NULL);
1654 	}
1655 
1656 	if ((svc = scf_service_create(h)) == NULL ||
1657 	    (prop = scf_property_create(h)) == NULL)
1658 		goto error1;
1659 	if (scf_handle_decode_fmri(h, fmri_buf, NULL, NULL, NULL, NULL, prop,
1660 	    SCF_DECODE_FMRI_REQUIRE_INSTANCE) == -1) {
1661 		switch (scf_error()) {
1662 		/*
1663 		 * If the property isn't found in the instance, we grab the
1664 		 * underlying service, create an FMRI out of it, and then
1665 		 * query the datastore again at the service level for the
1666 		 * property.
1667 		 */
1668 		case SCF_ERROR_NOT_FOUND:
1669 			if (scf_handle_decode_fmri(h, fmri_buf, NULL, svc,
1670 			    NULL, NULL, NULL, SCF_DECODE_FMRI_TRUNCATE) == -1)
1671 				goto error1;
1672 			if ((fmri_sz = scf_limit(SCF_LIMIT_MAX_FMRI_LENGTH)) ==
1673 			    -1) {
1674 				(void) scf_set_error(SCF_ERROR_INTERNAL);
1675 				goto error1;
1676 			}
1677 			if (scf_service_to_fmri(svc, fmri_buf, fmri_sz) == -1)
1678 				goto error1;
1679 			if ((svcfmri = assemble_fmri(h, fmri_buf, pgname,
1680 			    propname)) == NULL)
1681 				goto error1;
1682 			if (scf_handle_decode_fmri(h, svcfmri, NULL, NULL,
1683 			    NULL, NULL, prop, 0) == -1) {
1684 				free(svcfmri);
1685 				goto error1;
1686 			}
1687 			free(svcfmri);
1688 			break;
1689 		case SCF_ERROR_CONSTRAINT_VIOLATED:
1690 			(void) scf_set_error(SCF_ERROR_INVALID_ARGUMENT);
1691 		default:
1692 			goto error1;
1693 		}
1694 	}
1695 	/*
1696 	 * At this point, we've successfully pulled the property from the
1697 	 * datastore, and simply need to copy its innards into an
1698 	 * scf_simple_prop_t.
1699 	 */
1700 	if ((ret = fill_prop(prop, pgname, propname, h)) == NULL)
1701 		goto error1;
1702 
1703 	scf_service_destroy(svc);
1704 	scf_property_destroy(prop);
1705 	free(fmri_buf);
1706 	if (local_h)
1707 		scf_handle_destroy(h);
1708 	return (ret);
1709 
1710 	/*
1711 	 * Exit point for a successful call.  Below this line are exit points
1712 	 * for failures at various stages during the function.
1713 	 */
1714 
1715 error1:
1716 	scf_service_destroy(svc);
1717 	scf_property_destroy(prop);
1718 error2:
1719 	free(fmri_buf);
1720 	if (local_h)
1721 		scf_handle_destroy(h);
1722 	return (NULL);
1723 }
1724 
1725 
1726 void
1727 scf_simple_prop_free(scf_simple_prop_t *prop)
1728 {
1729 	int i;
1730 
1731 	if (prop == NULL)
1732 		return;
1733 
1734 	free(prop->pr_propname);
1735 	free(prop->pr_pgname);
1736 	switch (prop->pr_type) {
1737 	case SCF_TYPE_OPAQUE: {
1738 		for (i = 0; i < prop->pr_numvalues; i++) {
1739 			free(prop->pr_vallist[i].pv_opaque.o_value);
1740 		}
1741 		break;
1742 	}
1743 	case SCF_TYPE_ASTRING:
1744 	case SCF_TYPE_USTRING:
1745 	case SCF_TYPE_HOST:
1746 	case SCF_TYPE_HOSTNAME:
1747 	case SCF_TYPE_NET_ADDR_V4:
1748 	case SCF_TYPE_NET_ADDR_V6:
1749 	case SCF_TYPE_URI:
1750 	case SCF_TYPE_FMRI: {
1751 		for (i = 0; i < prop->pr_numvalues; i++) {
1752 			free(prop->pr_vallist[i].pv_str);
1753 		}
1754 		break;
1755 	}
1756 	default:
1757 		break;
1758 	}
1759 	free(prop->pr_vallist);
1760 	free(prop);
1761 }
1762 
1763 
1764 scf_simple_app_props_t *
1765 scf_simple_app_props_get(scf_handle_t *hin, const char *inst_fmri)
1766 {
1767 	scf_instance_t 		*inst = NULL;
1768 	scf_service_t 		*svc = NULL;
1769 	scf_propertygroup_t 	*pg = NULL;
1770 	scf_property_t 		*prop = NULL;
1771 	scf_simple_app_props_t	*ret = NULL;
1772 	scf_iter_t		*pgiter = NULL, *propiter = NULL;
1773 	struct scf_simple_pg	*thispg = NULL, *nextpg;
1774 	scf_simple_prop_t	*thisprop, *nextprop;
1775 	scf_handle_t		*h = NULL;
1776 	int			pgiter_ret, propiter_ret;
1777 	ssize_t			namelen;
1778 	char 			*propname = NULL, *pgname = NULL, *sys_fmri;
1779 	uint8_t			found;
1780 	boolean_t		local_h = B_TRUE;
1781 
1782 	/* If the user passed in a handle, use it. */
1783 	if (hin != NULL) {
1784 		h = hin;
1785 		local_h = B_FALSE;
1786 	}
1787 
1788 	if (local_h && ((h = handle_create()) == NULL))
1789 		return (NULL);
1790 
1791 	if (inst_fmri == NULL) {
1792 		if ((namelen = scf_myname(h, NULL, 0)) == -1) {
1793 			if (local_h)
1794 				scf_handle_destroy(h);
1795 			return (NULL);
1796 		}
1797 		if ((sys_fmri = malloc(namelen + 1)) == NULL) {
1798 			if (local_h)
1799 				scf_handle_destroy(h);
1800 			(void) scf_set_error(SCF_ERROR_NO_MEMORY);
1801 			return (NULL);
1802 		}
1803 		if (scf_myname(h, sys_fmri, namelen + 1) == -1) {
1804 			if (local_h)
1805 				scf_handle_destroy(h);
1806 			free(sys_fmri);
1807 			return (NULL);
1808 		}
1809 	} else {
1810 		if ((sys_fmri = strdup(inst_fmri)) == NULL) {
1811 			if (local_h)
1812 				scf_handle_destroy(h);
1813 			(void) scf_set_error(SCF_ERROR_NO_MEMORY);
1814 			return (NULL);
1815 		}
1816 	}
1817 
1818 	if ((namelen = scf_limit(SCF_LIMIT_MAX_NAME_LENGTH)) == -1) {
1819 		(void) scf_set_error(SCF_ERROR_INTERNAL);
1820 		return (NULL);
1821 	}
1822 
1823 	if ((inst = scf_instance_create(h)) == NULL ||
1824 	    (svc = scf_service_create(h)) == NULL ||
1825 	    (pgiter = scf_iter_create(h)) == NULL ||
1826 	    (propiter = scf_iter_create(h)) == NULL ||
1827 	    (pg = scf_pg_create(h)) == NULL ||
1828 	    (prop = scf_property_create(h)) == NULL)
1829 		goto error2;
1830 
1831 	if (scf_handle_decode_fmri(h, sys_fmri, NULL, svc, inst, NULL, NULL,
1832 	    SCF_DECODE_FMRI_REQUIRE_INSTANCE) == -1) {
1833 		if (scf_error() == SCF_ERROR_CONSTRAINT_VIOLATED)
1834 			(void) scf_set_error(SCF_ERROR_INVALID_ARGUMENT);
1835 		goto error2;
1836 	}
1837 
1838 	if ((ret = malloc(sizeof (*ret))) == NULL ||
1839 	    (thispg = malloc(sizeof (*thispg))) == NULL ||
1840 	    (propname = malloc(namelen)) == NULL ||
1841 	    (pgname = malloc(namelen)) == NULL) {
1842 		free(thispg);
1843 		free(ret);
1844 		(void) scf_set_error(SCF_ERROR_NO_MEMORY);
1845 		goto error2;
1846 	}
1847 
1848 	ret->ap_fmri = sys_fmri;
1849 	thispg->pg_name = NULL;
1850 	thispg->pg_proplist = NULL;
1851 	thispg->pg_next = NULL;
1852 	ret->ap_pglist = thispg;
1853 
1854 	if (scf_iter_service_pgs_typed(pgiter, svc, SCF_GROUP_APPLICATION) !=
1855 	    0) {
1856 		if (scf_error() != SCF_ERROR_CONNECTION_BROKEN)
1857 			(void) scf_set_error(SCF_ERROR_INTERNAL);
1858 		goto error1;
1859 	}
1860 
1861 	while ((pgiter_ret = scf_iter_next_pg(pgiter, pg)) == 1) {
1862 		if (thispg->pg_name != NULL) {
1863 			if ((nextpg = malloc(sizeof (*nextpg))) == NULL) {
1864 				(void) scf_set_error(SCF_ERROR_NO_MEMORY);
1865 				goto error1;
1866 			}
1867 			nextpg->pg_name = NULL;
1868 			nextpg->pg_next = NULL;
1869 			nextpg->pg_proplist = NULL;
1870 			thispg->pg_next = nextpg;
1871 			thispg = nextpg;
1872 		} else {
1873 			/* This is the first iteration */
1874 			nextpg = thispg;
1875 		}
1876 
1877 		if ((nextpg->pg_name = malloc(namelen)) == NULL) {
1878 			(void) scf_set_error(SCF_ERROR_NO_MEMORY);
1879 			goto error1;
1880 		}
1881 
1882 		if (scf_pg_get_name(pg, nextpg->pg_name, namelen) < 0) {
1883 			if (scf_error() == SCF_ERROR_NOT_SET)
1884 				(void) scf_set_error(SCF_ERROR_INTERNAL);
1885 			goto error1;
1886 		}
1887 
1888 		thisprop = NULL;
1889 
1890 		scf_iter_reset(propiter);
1891 
1892 		if (scf_iter_pg_properties(propiter, pg) != 0) {
1893 			if (scf_error() != SCF_ERROR_CONNECTION_BROKEN)
1894 				(void) scf_set_error(SCF_ERROR_INTERNAL);
1895 			goto error1;
1896 		}
1897 
1898 		while ((propiter_ret = scf_iter_next_property(propiter, prop))
1899 		    == 1) {
1900 			if (scf_property_get_name(prop, propname, namelen) <
1901 			    0) {
1902 				if (scf_error() == SCF_ERROR_NOT_SET)
1903 					(void) scf_set_error(
1904 					    SCF_ERROR_INTERNAL);
1905 				goto error1;
1906 			}
1907 			if (thisprop != NULL) {
1908 				if ((nextprop = fill_prop(prop,
1909 				    nextpg->pg_name, propname, h)) == NULL)
1910 					goto error1;
1911 				thisprop->pr_next = nextprop;
1912 				thisprop = nextprop;
1913 			} else {
1914 				/* This is the first iteration */
1915 				if ((thisprop = fill_prop(prop,
1916 				    nextpg->pg_name, propname, h)) == NULL)
1917 					goto error1;
1918 				nextpg->pg_proplist = thisprop;
1919 				nextprop = thisprop;
1920 			}
1921 			nextprop->pr_pg = nextpg;
1922 			nextprop->pr_next = NULL;
1923 		}
1924 
1925 		if (propiter_ret == -1) {
1926 			if (scf_error() != SCF_ERROR_CONNECTION_BROKEN)
1927 				(void) scf_set_error(SCF_ERROR_INTERNAL);
1928 			goto error1;
1929 		}
1930 	}
1931 
1932 	if (pgiter_ret == -1) {
1933 		if (scf_error() != SCF_ERROR_CONNECTION_BROKEN)
1934 			(void) scf_set_error(SCF_ERROR_INTERNAL);
1935 		goto error1;
1936 	}
1937 
1938 	/*
1939 	 * At this point, we've filled the scf_simple_app_props_t with all the
1940 	 * properties at the service level.  Now we iterate over all the
1941 	 * properties at the instance level, overwriting any duplicate
1942 	 * properties, in order to provide service/instance composition.
1943 	 */
1944 
1945 	scf_iter_reset(pgiter);
1946 	scf_iter_reset(propiter);
1947 
1948 	if (scf_iter_instance_pgs_typed(pgiter, inst, SCF_GROUP_APPLICATION)
1949 	    != 0) {
1950 		if (scf_error() != SCF_ERROR_CONNECTION_BROKEN)
1951 			(void) scf_set_error(SCF_ERROR_INTERNAL);
1952 		goto error1;
1953 	}
1954 
1955 	while ((pgiter_ret = scf_iter_next_pg(pgiter, pg)) == 1) {
1956 
1957 		thispg = ret->ap_pglist;
1958 		found = 0;
1959 
1960 		/*
1961 		 * Find either the end of the list, so we can append the
1962 		 * property group, or an existing property group that matches
1963 		 * it, so we can insert/overwrite its properties.
1964 		 */
1965 
1966 		if (scf_pg_get_name(pg, pgname, namelen) < 0) {
1967 			if (scf_error() == SCF_ERROR_NOT_SET)
1968 				(void) scf_set_error(SCF_ERROR_INTERNAL);
1969 			goto error1;
1970 		}
1971 
1972 		while ((thispg != NULL) && (thispg->pg_name != NULL)) {
1973 			if (strcmp(thispg->pg_name, pgname) == 0) {
1974 				found = 1;
1975 				break;
1976 			}
1977 			if (thispg->pg_next == NULL)
1978 				break;
1979 
1980 			thispg = thispg->pg_next;
1981 		}
1982 
1983 		scf_iter_reset(propiter);
1984 
1985 		if (scf_iter_pg_properties(propiter, pg) != 0) {
1986 			if (scf_error() != SCF_ERROR_CONNECTION_BROKEN)
1987 				(void) scf_set_error(SCF_ERROR_INTERNAL);
1988 			goto error1;
1989 		}
1990 
1991 		if (found) {
1992 			/*
1993 			 * insert_app_props inserts or overwrites the
1994 			 * properties in thispg.
1995 			 */
1996 
1997 			if (insert_app_props(propiter, pgname, propname,
1998 			    thispg, prop, namelen, h) == -1)
1999 				goto error1;
2000 
2001 		} else {
2002 			/*
2003 			 * If the property group wasn't found, we're adding
2004 			 * a newly allocated property group to the end of the
2005 			 * list.
2006 			 */
2007 
2008 			if ((nextpg = malloc(sizeof (*nextpg))) == NULL) {
2009 				(void) scf_set_error(SCF_ERROR_NO_MEMORY);
2010 				goto error1;
2011 			}
2012 			nextpg->pg_next = NULL;
2013 			nextpg->pg_proplist = NULL;
2014 			thisprop = NULL;
2015 
2016 			if ((nextpg->pg_name = strdup(pgname)) == NULL) {
2017 				(void) scf_set_error(SCF_ERROR_NO_MEMORY);
2018 				free(nextpg);
2019 				goto error1;
2020 			}
2021 
2022 			if (thispg->pg_name == NULL) {
2023 				free(thispg);
2024 				ret->ap_pglist = nextpg;
2025 			} else {
2026 				thispg->pg_next = nextpg;
2027 			}
2028 
2029 			while ((propiter_ret =
2030 			    scf_iter_next_property(propiter, prop)) == 1) {
2031 				if (scf_property_get_name(prop, propname,
2032 				    namelen) < 0) {
2033 					if (scf_error() == SCF_ERROR_NOT_SET)
2034 						(void) scf_set_error(
2035 						    SCF_ERROR_INTERNAL);
2036 					goto error1;
2037 				}
2038 				if (thisprop != NULL) {
2039 					if ((nextprop = fill_prop(prop,
2040 					    pgname, propname, h)) ==
2041 					    NULL)
2042 						goto error1;
2043 					thisprop->pr_next = nextprop;
2044 					thisprop = nextprop;
2045 				} else {
2046 					/* This is the first iteration */
2047 					if ((thisprop = fill_prop(prop,
2048 					    pgname, propname, h)) ==
2049 					    NULL)
2050 						goto error1;
2051 					nextpg->pg_proplist = thisprop;
2052 					nextprop = thisprop;
2053 				}
2054 				nextprop->pr_pg = nextpg;
2055 				nextprop->pr_next = NULL;
2056 			}
2057 
2058 			if (propiter_ret == -1) {
2059 				if (scf_error() != SCF_ERROR_CONNECTION_BROKEN)
2060 					(void) scf_set_error(
2061 					    SCF_ERROR_INTERNAL);
2062 				goto error1;
2063 			}
2064 		}
2065 
2066 	}
2067 
2068 	if (pgiter_ret == -1) {
2069 		if (scf_error() != SCF_ERROR_CONNECTION_BROKEN)
2070 			(void) scf_set_error(SCF_ERROR_INTERNAL);
2071 		goto error1;
2072 	}
2073 
2074 	scf_iter_destroy(pgiter);
2075 	scf_iter_destroy(propiter);
2076 	scf_pg_destroy(pg);
2077 	scf_property_destroy(prop);
2078 	scf_instance_destroy(inst);
2079 	scf_service_destroy(svc);
2080 	free(propname);
2081 	free(pgname);
2082 	if (local_h)
2083 		scf_handle_destroy(h);
2084 
2085 	if (ret->ap_pglist->pg_name == NULL)
2086 		return (NULL);
2087 
2088 	return (ret);
2089 
2090 	/*
2091 	 * Exit point for a successful call.  Below this line are exit points
2092 	 * for failures at various stages during the function.
2093 	 */
2094 
2095 error1:
2096 	scf_simple_app_props_free(ret);
2097 
2098 error2:
2099 	scf_iter_destroy(pgiter);
2100 	scf_iter_destroy(propiter);
2101 	scf_pg_destroy(pg);
2102 	scf_property_destroy(prop);
2103 	scf_instance_destroy(inst);
2104 	scf_service_destroy(svc);
2105 	free(propname);
2106 	free(pgname);
2107 	if (local_h)
2108 		scf_handle_destroy(h);
2109 	return (NULL);
2110 }
2111 
2112 
2113 void
2114 scf_simple_app_props_free(scf_simple_app_props_t *propblock)
2115 {
2116 	struct scf_simple_pg 	*pgthis, *pgnext;
2117 	scf_simple_prop_t 	*propthis, *propnext;
2118 
2119 	if ((propblock == NULL) || (propblock->ap_pglist == NULL))
2120 		return;
2121 
2122 	for (pgthis = propblock->ap_pglist; pgthis != NULL; pgthis = pgnext) {
2123 		pgnext = pgthis->pg_next;
2124 
2125 		propthis = pgthis->pg_proplist;
2126 
2127 		while (propthis != NULL) {
2128 			propnext = propthis->pr_next;
2129 			scf_simple_prop_free(propthis);
2130 			propthis = propnext;
2131 		}
2132 
2133 		free(pgthis->pg_name);
2134 		free(pgthis);
2135 	}
2136 
2137 	free(propblock->ap_fmri);
2138 	free(propblock);
2139 }
2140 
2141 const scf_simple_prop_t *
2142 scf_simple_app_props_next(const scf_simple_app_props_t *propblock,
2143     scf_simple_prop_t *last)
2144 {
2145 	struct scf_simple_pg 	*this;
2146 
2147 	if (propblock == NULL) {
2148 		(void) scf_set_error(SCF_ERROR_NOT_SET);
2149 		return (NULL);
2150 	}
2151 
2152 	this = propblock->ap_pglist;
2153 
2154 	/*
2155 	 * We're looking for the first property in this block if last is
2156 	 * NULL
2157 	 */
2158 
2159 	if (last == NULL) {
2160 		/* An empty pglist is legal, it just means no properties */
2161 		if (this == NULL) {
2162 			(void) scf_set_error(SCF_ERROR_NONE);
2163 			return (NULL);
2164 		}
2165 		/*
2166 		 * Walk until we find a pg with a property in it, or we run
2167 		 * out of property groups.
2168 		 */
2169 		while ((this->pg_proplist == NULL) && (this->pg_next != NULL))
2170 			this = this->pg_next;
2171 
2172 		if (this->pg_proplist == NULL) {
2173 			(void) scf_set_error(SCF_ERROR_NONE);
2174 			return (NULL);
2175 		}
2176 
2177 		return (this->pg_proplist);
2178 
2179 	}
2180 	/*
2181 	 * If last isn't NULL, then return the next prop in the property group,
2182 	 * or walk the property groups until we find another property, or
2183 	 * run out of property groups.
2184 	 */
2185 	if (last->pr_next != NULL)
2186 		return (last->pr_next);
2187 
2188 	if (last->pr_pg->pg_next == NULL) {
2189 		(void) scf_set_error(SCF_ERROR_NONE);
2190 		return (NULL);
2191 	}
2192 
2193 	this = last->pr_pg->pg_next;
2194 
2195 	while ((this->pg_proplist == NULL) && (this->pg_next != NULL))
2196 		this = this->pg_next;
2197 
2198 	if (this->pg_proplist == NULL) {
2199 		(void) scf_set_error(SCF_ERROR_NONE);
2200 		return (NULL);
2201 	}
2202 
2203 	return (this->pg_proplist);
2204 }
2205 
2206 const scf_simple_prop_t *
2207 scf_simple_app_props_search(const scf_simple_app_props_t *propblock,
2208     const char *pgname, const char *propname)
2209 {
2210 	struct scf_simple_pg 	*pg;
2211 	scf_simple_prop_t 	*prop;
2212 
2213 	if ((propblock == NULL) || (propname == NULL)) {
2214 		(void) scf_set_error(SCF_ERROR_NOT_SET);
2215 		return (NULL);
2216 	}
2217 
2218 	pg = propblock->ap_pglist;
2219 
2220 	/*
2221 	 * If pgname is NULL, we're searching the default application
2222 	 * property group, otherwise we look for the specified group.
2223 	 */
2224 	if (pgname == NULL) {
2225 		while ((pg != NULL) &&
2226 		    (strcmp(SCF_PG_APP_DEFAULT, pg->pg_name) != 0))
2227 			pg = pg->pg_next;
2228 	} else {
2229 		while ((pg != NULL) && (strcmp(pgname, pg->pg_name) != 0))
2230 			pg = pg->pg_next;
2231 	}
2232 
2233 	if (pg == NULL) {
2234 		(void) scf_set_error(SCF_ERROR_NOT_FOUND);
2235 		return (NULL);
2236 	}
2237 
2238 	prop = pg->pg_proplist;
2239 
2240 	while ((prop != NULL) && (strcmp(propname, prop->pr_propname) != 0))
2241 		prop = prop->pr_next;
2242 
2243 	if (prop == NULL) {
2244 		(void) scf_set_error(SCF_ERROR_NOT_FOUND);
2245 		return (NULL);
2246 	}
2247 
2248 	return (prop);
2249 }
2250 
2251 void
2252 scf_simple_prop_next_reset(scf_simple_prop_t *prop)
2253 {
2254 	if (prop == NULL)
2255 		return;
2256 	prop->pr_iter = 0;
2257 }
2258 
2259 ssize_t
2260 scf_simple_prop_numvalues(const scf_simple_prop_t *prop)
2261 {
2262 	if (prop == NULL)
2263 		return (scf_set_error(SCF_ERROR_NOT_SET));
2264 
2265 	return (prop->pr_numvalues);
2266 }
2267 
2268 
2269 scf_type_t
2270 scf_simple_prop_type(const scf_simple_prop_t *prop)
2271 {
2272 	if (prop == NULL)
2273 		return (scf_set_error(SCF_ERROR_NOT_SET));
2274 
2275 	return (prop->pr_type);
2276 }
2277 
2278 
2279 char *
2280 scf_simple_prop_name(const scf_simple_prop_t *prop)
2281 {
2282 	if ((prop == NULL) || (prop->pr_propname == NULL)) {
2283 		(void) scf_set_error(SCF_ERROR_NOT_SET);
2284 		return (NULL);
2285 	}
2286 
2287 	return (prop->pr_propname);
2288 }
2289 
2290 
2291 char *
2292 scf_simple_prop_pgname(const scf_simple_prop_t *prop)
2293 {
2294 	if ((prop == NULL) || (prop->pr_pgname == NULL)) {
2295 		(void) scf_set_error(SCF_ERROR_NOT_SET);
2296 		return (NULL);
2297 	}
2298 
2299 	return (prop->pr_pgname);
2300 }
2301 
2302 
2303 static union scf_simple_prop_val *
2304 scf_next_val(scf_simple_prop_t *prop, scf_type_t type)
2305 {
2306 	if (prop == NULL) {
2307 		(void) scf_set_error(SCF_ERROR_NOT_SET);
2308 		return (NULL);
2309 	}
2310 
2311 	switch (prop->pr_type) {
2312 	case SCF_TYPE_USTRING:
2313 	case SCF_TYPE_HOST:
2314 	case SCF_TYPE_HOSTNAME:
2315 	case SCF_TYPE_NET_ADDR_V4:
2316 	case SCF_TYPE_NET_ADDR_V6:
2317 	case SCF_TYPE_URI:
2318 	case SCF_TYPE_FMRI: {
2319 		if (type != SCF_TYPE_USTRING) {
2320 			(void) scf_set_error(SCF_ERROR_TYPE_MISMATCH);
2321 			return (NULL);
2322 		}
2323 		break;
2324 		}
2325 	default: {
2326 		if (type != prop->pr_type) {
2327 			(void) scf_set_error(SCF_ERROR_TYPE_MISMATCH);
2328 			return (NULL);
2329 		}
2330 		break;
2331 		}
2332 	}
2333 
2334 	if (prop->pr_iter >= prop->pr_numvalues) {
2335 		(void) scf_set_error(SCF_ERROR_NONE);
2336 		return (NULL);
2337 	}
2338 
2339 	return (&prop->pr_vallist[prop->pr_iter++]);
2340 }
2341 
2342 
2343 uint8_t *
2344 scf_simple_prop_next_boolean(scf_simple_prop_t *prop)
2345 {
2346 	union scf_simple_prop_val *ret;
2347 
2348 	ret = scf_next_val(prop, SCF_TYPE_BOOLEAN);
2349 
2350 	if (ret == NULL)
2351 		return (NULL);
2352 
2353 	return (&ret->pv_bool);
2354 }
2355 
2356 
2357 uint64_t *
2358 scf_simple_prop_next_count(scf_simple_prop_t *prop)
2359 {
2360 	union scf_simple_prop_val *ret;
2361 
2362 	ret = scf_next_val(prop, SCF_TYPE_COUNT);
2363 
2364 	if (ret == NULL)
2365 		return (NULL);
2366 
2367 	return (&ret->pv_uint);
2368 }
2369 
2370 
2371 int64_t *
2372 scf_simple_prop_next_integer(scf_simple_prop_t *prop)
2373 {
2374 	union scf_simple_prop_val *ret;
2375 
2376 	ret = scf_next_val(prop, SCF_TYPE_INTEGER);
2377 
2378 	if (ret == NULL)
2379 		return (NULL);
2380 
2381 	return (&ret->pv_int);
2382 }
2383 
2384 int64_t *
2385 scf_simple_prop_next_time(scf_simple_prop_t *prop, int32_t *nsec)
2386 {
2387 	union scf_simple_prop_val *ret;
2388 
2389 	ret = scf_next_val(prop, SCF_TYPE_TIME);
2390 
2391 	if (ret == NULL)
2392 		return (NULL);
2393 
2394 	if (nsec != NULL)
2395 		*nsec = ret->pv_time.t_nsec;
2396 
2397 	return (&ret->pv_time.t_sec);
2398 }
2399 
2400 char *
2401 scf_simple_prop_next_astring(scf_simple_prop_t *prop)
2402 {
2403 	union scf_simple_prop_val *ret;
2404 
2405 	ret = scf_next_val(prop, SCF_TYPE_ASTRING);
2406 
2407 	if (ret == NULL)
2408 		return (NULL);
2409 
2410 	return (ret->pv_str);
2411 }
2412 
2413 char *
2414 scf_simple_prop_next_ustring(scf_simple_prop_t *prop)
2415 {
2416 	union scf_simple_prop_val *ret;
2417 
2418 	ret = scf_next_val(prop, SCF_TYPE_USTRING);
2419 
2420 	if (ret == NULL)
2421 		return (NULL);
2422 
2423 	return (ret->pv_str);
2424 }
2425 
2426 void *
2427 scf_simple_prop_next_opaque(scf_simple_prop_t *prop, size_t *length)
2428 {
2429 	union scf_simple_prop_val *ret;
2430 
2431 	ret = scf_next_val(prop, SCF_TYPE_OPAQUE);
2432 
2433 	if (ret == NULL) {
2434 		*length = 0;
2435 		return (NULL);
2436 	}
2437 
2438 	*length = ret->pv_opaque.o_size;
2439 	return (ret->pv_opaque.o_value);
2440 }
2441 
2442 /*
2443  * Generate a filename based on the fmri and the given name and return
2444  * it in the buffer of MAXPATHLEN provided by the caller.
2445  * If temp_filename is non-zero, also generate a temporary, unique filename
2446  * and return it in the temp buffer of MAXPATHLEN provided by the caller.
2447  * The path to the generated pathname is also created.
2448  * Given fmri should begin with a scheme such as "svc:".
2449  * Returns
2450  *      0 on success
2451  *      -1 if filename would exceed MAXPATHLEN or
2452  *	-2 if unable to create directory to filename path
2453  */
2454 int
2455 gen_filenms_from_fmri(const char *fmri, const char *name, char *filename,
2456     char *temp_filename)
2457 {
2458 	int		len;
2459 
2460 	len = strlen(SMF_SPEEDY_FILES_PATH);
2461 	len += strlen(fmri);
2462 	len += 2;			/* for slash and null */
2463 	len += strlen(name);
2464 	len += 6;			/* For X's needed for mkstemp */
2465 
2466 	if (len > MAXPATHLEN)
2467 		return (-1);
2468 
2469 	/* Construct directory name first - speedy path ends in slash */
2470 	(void) strcpy(filename, SMF_SPEEDY_FILES_PATH);
2471 	(void) strcat(filename, fmri);
2472 	if (mkdirp(filename, 0755) == -1) {
2473 		/* errno is set */
2474 		if (errno != EEXIST)
2475 			return (-2);
2476 	}
2477 
2478 	(void) strcat(filename, "/");
2479 	(void) strcat(filename, name);
2480 
2481 	if (temp_filename) {
2482 		(void) strcpy(temp_filename, filename);
2483 		(void) strcat(temp_filename, "XXXXXX");
2484 	}
2485 
2486 	return (0);
2487 }
2488