xref: /titanic_52/usr/src/lib/fm/topo/libtopo/common/topo_xml.c (revision aab83bb83be7342f6cfccaed8d5fe0b2f404855d)
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) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
24  * Copyright (c) 2013, Joyent, Inc. All rights reserved.
25  */
26 
27 #include <libxml/parser.h>
28 #include <libxml/xinclude.h>
29 #include <sys/fm/protocol.h>
30 #include <assert.h>
31 #include <string.h>
32 #include <strings.h>
33 #include <ctype.h>
34 #include <errno.h>
35 #include <limits.h>
36 #include <fm/libtopo.h>
37 #include <unistd.h>
38 #include <sys/stat.h>
39 #include <fcntl.h>
40 #include <topo_file.h>
41 #include <topo_mod.h>
42 #include <topo_subr.h>
43 #include <topo_alloc.h>
44 #include <topo_parse.h>
45 #include <topo_error.h>
46 
47 static tf_rdata_t *topo_xml_walk(topo_mod_t *, tf_info_t *, xmlNodePtr,
48     tnode_t *);
49 static tf_edata_t *enum_attributes_process(topo_mod_t *, xmlNodePtr);
50 static int enum_run(topo_mod_t *, tf_rdata_t *);
51 static int fac_enum_run(topo_mod_t *, tnode_t *, const char *);
52 static int fac_process(topo_mod_t *, xmlNodePtr, tf_rdata_t *, tnode_t *);
53 static int fac_enum_process(topo_mod_t *, xmlNodePtr, tnode_t *);
54 static int decorate_nodes(topo_mod_t *, tf_rdata_t *, xmlNodePtr, tnode_t *,
55     tf_pad_t **);
56 
57 
58 static void
59 strarr_free(topo_mod_t *mod, char **arr, uint_t nelems)
60 {
61 	int i;
62 
63 	for (i = 0; i < nelems; i++)
64 		topo_mod_strfree(mod, arr[i]);
65 	topo_mod_free(mod, arr, (nelems * sizeof (char *)));
66 }
67 
68 int
69 xmlattr_to_stab(topo_mod_t *mp, xmlNodePtr n, const char *stabname,
70     topo_stability_t *rs)
71 {
72 	xmlChar *str;
73 	int rv = 0;
74 
75 	if (n == NULL) {
76 		/* If there is no Stability defined, we default to private */
77 		*rs = TOPO_STABILITY_PRIVATE;
78 		return (0);
79 	}
80 	if ((str = xmlGetProp(n, (xmlChar *)stabname)) == NULL) {
81 		topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
82 		    "attribute to stability:\n");
83 		return (topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR));
84 	}
85 
86 	if (xmlStrcmp(str, (xmlChar *)Internal) == 0) {
87 		*rs = TOPO_STABILITY_INTERNAL;
88 	} else if (xmlStrcmp(str, (xmlChar *)Private) == 0) {
89 		*rs = TOPO_STABILITY_PRIVATE;
90 	} else if (xmlStrcmp(str, (xmlChar *)Obsolete) == 0) {
91 		*rs = TOPO_STABILITY_OBSOLETE;
92 	} else if (xmlStrcmp(str, (xmlChar *)External) == 0) {
93 		*rs = TOPO_STABILITY_EXTERNAL;
94 	} else if (xmlStrcmp(str, (xmlChar *)Unstable) == 0) {
95 		*rs = TOPO_STABILITY_UNSTABLE;
96 	} else if (xmlStrcmp(str, (xmlChar *)Evolving) == 0) {
97 		*rs = TOPO_STABILITY_EVOLVING;
98 	} else if (xmlStrcmp(str, (xmlChar *)Stable) == 0) {
99 		*rs = TOPO_STABILITY_STABLE;
100 	} else if (xmlStrcmp(str, (xmlChar *)Standard) == 0) {
101 		*rs = TOPO_STABILITY_STANDARD;
102 	} else {
103 		xmlFree(str);
104 		return (topo_mod_seterrno(mp, ETOPO_PRSR_BADSTAB));
105 	}
106 	xmlFree(str);
107 	return (rv);
108 }
109 
110 int
111 xmlattr_to_int(topo_mod_t *mp,
112     xmlNodePtr n, const char *propname, uint64_t *value)
113 {
114 	xmlChar *str;
115 	xmlChar *estr;
116 
117 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "xmlattr_to_int(propname=%s)\n",
118 	    propname);
119 	if ((str = xmlGetProp(n, (xmlChar *)propname)) == NULL)
120 		return (topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR));
121 	*value = strtoull((char *)str, (char **)&estr, 10);
122 	if (estr == str) {
123 		/* no conversion was done */
124 		xmlFree(str);
125 		return (topo_mod_seterrno(mp, ETOPO_PRSR_BADNUM));
126 	}
127 	xmlFree(str);
128 	return (0);
129 }
130 
131 static int
132 xmlattr_to_fmri(topo_mod_t *mp,
133     xmlNodePtr xn, const char *propname, nvlist_t **rnvl)
134 {
135 	xmlChar *str;
136 
137 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "xmlattr_to_fmri(propname=%s)\n",
138 	    propname);
139 	if ((str = xmlGetProp(xn, (xmlChar *)propname)) == NULL)
140 		return (topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR));
141 	if (topo_mod_str2nvl(mp, (const char *)str, rnvl) < 0) {
142 		xmlFree(str);
143 		return (-1);
144 	}
145 	xmlFree(str);
146 	return (0);
147 }
148 
149 static topo_type_t
150 xmlattr_to_type(topo_mod_t *mp, xmlNodePtr xn, xmlChar *attr)
151 {
152 	topo_type_t rv;
153 	xmlChar *str;
154 	if ((str = xmlGetProp(xn, (xmlChar *)attr)) == NULL) {
155 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR, "%s attribute missing",
156 		    attr);
157 		(void) topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR);
158 		return (TOPO_TYPE_INVALID);
159 	}
160 	if (xmlStrcmp(str, (xmlChar *)Int32) == 0) {
161 		rv = TOPO_TYPE_INT32;
162 	} else if (xmlStrcmp(str, (xmlChar *)UInt32) == 0) {
163 		rv = TOPO_TYPE_UINT32;
164 	} else if (xmlStrcmp(str, (xmlChar *)Int64) == 0) {
165 		rv = TOPO_TYPE_INT64;
166 	} else if (xmlStrcmp(str, (xmlChar *)UInt64) == 0) {
167 		rv = TOPO_TYPE_UINT64;
168 	} else if (xmlStrcmp(str, (xmlChar *)FMRI) == 0) {
169 		rv = TOPO_TYPE_FMRI;
170 	} else if (xmlStrcmp(str, (xmlChar *)String) == 0) {
171 		rv = TOPO_TYPE_STRING;
172 	} else if (xmlStrcmp(str, (xmlChar *)Int32_Arr) == 0) {
173 		rv = TOPO_TYPE_INT32_ARRAY;
174 	} else if (xmlStrcmp(str, (xmlChar *)UInt32_Arr) == 0) {
175 		rv = TOPO_TYPE_UINT32_ARRAY;
176 	} else if (xmlStrcmp(str, (xmlChar *)Int64_Arr) == 0) {
177 		rv = TOPO_TYPE_INT64_ARRAY;
178 	} else if (xmlStrcmp(str, (xmlChar *)UInt64_Arr) == 0) {
179 		rv = TOPO_TYPE_UINT64_ARRAY;
180 	} else if (xmlStrcmp(str, (xmlChar *)String_Arr) == 0) {
181 		rv = TOPO_TYPE_STRING_ARRAY;
182 	} else if (xmlStrcmp(str, (xmlChar *)FMRI_Arr) == 0) {
183 		rv = TOPO_TYPE_FMRI_ARRAY;
184 	} else {
185 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
186 		    "Unrecognized type attribute value '%s'.\n", str);
187 		(void) topo_mod_seterrno(mp, ETOPO_PRSR_BADTYPE);
188 		xmlFree(str);
189 		return (TOPO_TYPE_INVALID);
190 	}
191 	xmlFree(str);
192 	return (rv);
193 }
194 
195 static int
196 xlate_common(topo_mod_t *mp, xmlNodePtr xn, topo_type_t ptype, nvlist_t *nvl,
197 const char *name)
198 {
199 	int rv;
200 	uint64_t ui;
201 	uint_t i = 0, nelems = 0;
202 	nvlist_t *fmri;
203 	xmlChar *str;
204 	char **strarrbuf;
205 	void *arrbuf;
206 	nvlist_t **nvlarrbuf;
207 	xmlNodePtr cn;
208 
209 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "xlate_common(name=%s)\n", name);
210 	switch (ptype) {
211 	case TOPO_TYPE_INT32:
212 		if (xmlattr_to_int(mp, xn, Value, &ui) < 0)
213 			return (-1);
214 		rv = nvlist_add_int32(nvl, name, (int32_t)ui);
215 		break;
216 	case TOPO_TYPE_UINT32:
217 		if (xmlattr_to_int(mp, xn, Value, &ui) < 0)
218 			return (-1);
219 		rv = nvlist_add_uint32(nvl, name, (uint32_t)ui);
220 		break;
221 	case TOPO_TYPE_INT64:
222 		if (xmlattr_to_int(mp, xn, Value, &ui) < 0)
223 			return (-1);
224 		rv = nvlist_add_int64(nvl, name, (int64_t)ui);
225 		break;
226 	case TOPO_TYPE_UINT64:
227 		if (xmlattr_to_int(mp, xn, Value, &ui) < 0)
228 			return (-1);
229 		rv = nvlist_add_uint64(nvl, name, ui);
230 		break;
231 	case TOPO_TYPE_FMRI:
232 		if (xmlattr_to_fmri(mp, xn, Value, &fmri) < 0)
233 			return (-1);
234 		rv = nvlist_add_nvlist(nvl, name, fmri);
235 		nvlist_free(fmri);
236 		break;
237 	case TOPO_TYPE_STRING:
238 		if ((str = xmlGetProp(xn, (xmlChar *)Value)) == NULL)
239 			return (-1);
240 		rv = nvlist_add_string(nvl, name, (char *)str);
241 		xmlFree(str);
242 		break;
243 	case TOPO_TYPE_INT32_ARRAY:
244 	case TOPO_TYPE_UINT32_ARRAY:
245 	case TOPO_TYPE_INT64_ARRAY:
246 	case TOPO_TYPE_UINT64_ARRAY:
247 		for (cn = xn->xmlChildrenNode; cn != NULL; cn = cn->next)
248 			if ((xmlStrcmp(cn->name, (xmlChar *)Propitem) == 0) ||
249 			    (xmlStrcmp(cn->name, (xmlChar *)Argitem) == 0))
250 				nelems++;
251 
252 		if (nelems < 1) {
253 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR, "No <propitem> "
254 			    "or <argitem> elements found for array val");
255 			return (-1);
256 		}
257 		if ((arrbuf = topo_mod_alloc(mp, (nelems * sizeof (uint64_t))))
258 		    == NULL)
259 			return (topo_mod_seterrno(mp, ETOPO_NOMEM));
260 		break;
261 	case TOPO_TYPE_STRING_ARRAY:
262 		for (cn = xn->xmlChildrenNode; cn != NULL; cn = cn->next)
263 			if ((xmlStrcmp(cn->name, (xmlChar *)Propitem) == 0) ||
264 			    (xmlStrcmp(cn->name, (xmlChar *)Argitem) == 0))
265 				nelems++;
266 
267 		if (nelems < 1) {
268 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR, "No <propitem> "
269 			    "or <argitem> elements found for array val");
270 			return (-1);
271 		}
272 		if ((strarrbuf = topo_mod_alloc(mp, (nelems * sizeof (char *))))
273 		    == NULL)
274 			return (topo_mod_seterrno(mp, ETOPO_NOMEM));
275 		break;
276 	case TOPO_TYPE_FMRI_ARRAY:
277 		for (cn = xn->xmlChildrenNode; cn != NULL; cn = cn->next)
278 			if ((xmlStrcmp(cn->name, (xmlChar *)Propitem) == 0) ||
279 			    (xmlStrcmp(cn->name, (xmlChar *)Argitem) == 0))
280 				nelems++;
281 
282 		if (nelems < 1) {
283 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR, "No <propitem> "
284 			    "elements found for array prop");
285 			return (-1);
286 		}
287 		if ((nvlarrbuf = topo_mod_alloc(mp, (nelems *
288 		    sizeof (nvlist_t *)))) == NULL)
289 			return (topo_mod_seterrno(mp, ETOPO_NOMEM));
290 		break;
291 	default:
292 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
293 		    "Unrecognized type attribute (ptype = %d)\n", ptype);
294 		return (topo_mod_seterrno(mp, ETOPO_PRSR_BADTYPE));
295 	}
296 
297 	switch (ptype) {
298 	case TOPO_TYPE_INT32_ARRAY:
299 		for (cn = xn->xmlChildrenNode; cn != NULL; cn = cn->next) {
300 			if ((xmlStrcmp(cn->name, (xmlChar *)Propitem) == 0) ||
301 			    (xmlStrcmp(cn->name, (xmlChar *)Argitem) == 0)) {
302 
303 				if ((str = xmlGetProp(xn, (xmlChar *)Value))
304 				    == NULL)
305 					return (-1);
306 
307 				((int32_t *)arrbuf)[i++]
308 				    = atoi((const char *)str);
309 				xmlFree(str);
310 			}
311 		}
312 
313 		rv = nvlist_add_int32_array(nvl, name, (int32_t *)arrbuf,
314 		    nelems);
315 		free(arrbuf);
316 		break;
317 	case TOPO_TYPE_UINT32_ARRAY:
318 		for (cn = xn->xmlChildrenNode; cn != NULL; cn = cn->next) {
319 			if ((xmlStrcmp(cn->name, (xmlChar *)Propitem) == 0) ||
320 			    (xmlStrcmp(cn->name, (xmlChar *)Argitem) == 0)) {
321 
322 				if ((str = xmlGetProp(xn, (xmlChar *)Value))
323 				    == NULL)
324 					return (-1);
325 
326 				((uint32_t *)arrbuf)[i++]
327 				    = atoi((const char *)str);
328 				xmlFree(str);
329 			}
330 		}
331 
332 		rv = nvlist_add_uint32_array(nvl, name, (uint32_t *)arrbuf,
333 		    nelems);
334 		free(arrbuf);
335 		break;
336 	case TOPO_TYPE_INT64_ARRAY:
337 		for (cn = xn->xmlChildrenNode; cn != NULL; cn = cn->next) {
338 			if ((xmlStrcmp(cn->name, (xmlChar *)Propitem) == 0) ||
339 			    (xmlStrcmp(cn->name, (xmlChar *)Argitem) == 0)) {
340 
341 				if ((str = xmlGetProp(xn, (xmlChar *)Value))
342 				    == NULL)
343 					return (-1);
344 
345 				((int64_t *)arrbuf)[i++]
346 				    = atol((const char *)str);
347 				xmlFree(str);
348 			}
349 		}
350 
351 		rv = nvlist_add_int64_array(nvl, name, (int64_t *)arrbuf,
352 		    nelems);
353 		free(arrbuf);
354 		break;
355 	case TOPO_TYPE_UINT64_ARRAY:
356 		for (cn = xn->xmlChildrenNode; cn != NULL; cn = cn->next) {
357 			if ((xmlStrcmp(cn->name, (xmlChar *)Propitem) == 0) ||
358 			    (xmlStrcmp(cn->name, (xmlChar *)Argitem) == 0)) {
359 
360 				if ((str = xmlGetProp(xn, (xmlChar *)Value))
361 				    == NULL)
362 					return (-1);
363 
364 				((uint64_t *)arrbuf)[i++]
365 				    = atol((const char *)str);
366 				xmlFree(str);
367 			}
368 		}
369 
370 		rv = nvlist_add_uint64_array(nvl, name, arrbuf,
371 		    nelems);
372 		free(arrbuf);
373 		break;
374 	case TOPO_TYPE_STRING_ARRAY:
375 		for (cn = xn->xmlChildrenNode; cn != NULL; cn = cn->next) {
376 			if ((xmlStrcmp(cn->name, (xmlChar *)Propitem) == 0) ||
377 			    (xmlStrcmp(cn->name, (xmlChar *)Argitem) == 0)) {
378 
379 				if ((str = xmlGetProp(cn, (xmlChar *)Value))
380 				    == NULL)
381 					return (-1);
382 
383 				strarrbuf[i++] =
384 				    topo_mod_strdup(mp, (const char *)str);
385 				xmlFree(str);
386 			}
387 		}
388 
389 		rv = nvlist_add_string_array(nvl, name, strarrbuf, nelems);
390 		strarr_free(mp, strarrbuf, nelems);
391 		break;
392 	case TOPO_TYPE_FMRI_ARRAY:
393 		for (cn = xn->xmlChildrenNode; cn != NULL; cn = cn->next) {
394 			if ((xmlStrcmp(cn->name, (xmlChar *)Propitem) == 0) ||
395 			    (xmlStrcmp(cn->name, (xmlChar *)Argitem) == 0)) {
396 
397 				if ((str = xmlGetProp(xn, (xmlChar *)Value))
398 				    == NULL)
399 					return (-1);
400 
401 				if (topo_mod_str2nvl(mp, (const char *)str,
402 				    &(nvlarrbuf[i++])) < 0) {
403 					xmlFree(str);
404 					return (-1);
405 				}
406 				xmlFree(str);
407 			}
408 		}
409 
410 		rv = nvlist_add_nvlist_array(nvl, name, nvlarrbuf,
411 		    nelems);
412 		free(nvlarrbuf);
413 		break;
414 	}
415 
416 	if (rv != 0) {
417 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
418 		    "Nvlist construction failed.\n");
419 		return (topo_mod_seterrno(mp, ETOPO_NOMEM));
420 	} else
421 		return (0);
422 }
423 
424 static int
425 xmlprop_xlate(topo_mod_t *mp, xmlNodePtr xn, nvlist_t *nvl)
426 {
427 	topo_type_t ptype;
428 	xmlChar *str;
429 
430 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "xmlprop_xlate\n");
431 	if ((str = xmlGetProp(xn, (xmlChar *)Immutable)) != NULL) {
432 		if (xmlStrcmp(str, (xmlChar *)False) == 0)
433 			(void) nvlist_add_boolean_value(nvl, INV_IMMUTE,
434 			    B_FALSE);
435 		else
436 			(void) nvlist_add_boolean_value(nvl, INV_IMMUTE,
437 			    B_TRUE);
438 		xmlFree(str);
439 	} else {
440 		(void) nvlist_add_boolean_value(nvl, INV_IMMUTE, B_TRUE);
441 	}
442 
443 	if ((ptype = xmlattr_to_type(mp, xn, (xmlChar *)Type))
444 	    == TOPO_TYPE_INVALID)
445 		return (-1);
446 
447 	if (nvlist_add_int32(nvl, INV_PVALTYPE, ptype) != 0)
448 		return (-1);
449 
450 	return (xlate_common(mp, xn, ptype, nvl, INV_PVAL));
451 }
452 
453 static int
454 dependent_create(topo_mod_t *mp,
455     tf_info_t *xinfo, tf_pad_t *pad, xmlNodePtr dxn, tnode_t *ptn)
456 {
457 	tf_rdata_t *rp, *pp, *np;
458 	xmlChar *grptype;
459 	int sibs = 0;
460 
461 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "dependent_create\n");
462 	if ((grptype = xmlGetProp(dxn, (xmlChar *)Grouping)) == NULL) {
463 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
464 		    "Dependents missing grouping attribute");
465 		return (topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR));
466 	}
467 
468 	pp = NULL;
469 	if (xmlStrcmp(grptype, (xmlChar *)Siblings) == 0) {
470 		rp = pad->tpad_sibs;
471 		sibs++;
472 	} else if (xmlStrcmp(grptype, (xmlChar *)Children) == 0) {
473 		rp = pad->tpad_child;
474 	} else {
475 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
476 		    "Dependents have bogus grouping attribute");
477 		xmlFree(grptype);
478 		return (topo_mod_seterrno(mp, ETOPO_PRSR_BADGRP));
479 	}
480 	xmlFree(grptype);
481 	/* Add processed dependents to the tail of the list */
482 	while (rp != NULL) {
483 		pp = rp;
484 		rp = rp->rd_next;
485 	}
486 	if ((np = topo_xml_walk(mp, xinfo, dxn, ptn)) == NULL) {
487 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
488 		    "error within dependent .xml topology: "
489 		    "%s\n", topo_strerror(topo_mod_errno(mp)));
490 		return (-1);
491 	}
492 	if (pp != NULL)
493 		pp->rd_next = np;
494 	else if (sibs == 1)
495 		pad->tpad_sibs = np;
496 	else
497 		pad->tpad_child = np;
498 	return (0);
499 }
500 
501 static int
502 dependents_create(topo_mod_t *mp,
503     tf_info_t *xinfo, tf_pad_t *pad, xmlNodePtr pxn, tnode_t *ptn)
504 {
505 	xmlNodePtr cn;
506 
507 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "dependents_create\n");
508 	for (cn = pxn->xmlChildrenNode; cn != NULL; cn = cn->next) {
509 		if (xmlStrcmp(cn->name, (xmlChar *)Dependents) == 0) {
510 			if (dependent_create(mp, xinfo, pad, cn, ptn) < 0)
511 				return (-1);
512 		}
513 	}
514 	return (0);
515 }
516 
517 static int
518 prop_create(topo_mod_t *mp,
519     nvlist_t *pfmri, tnode_t *ptn, const char *gnm, const char *pnm,
520     topo_type_t ptype, int flag)
521 {
522 	nvlist_t *fmri, **fmriarr;
523 	uint32_t ui32, *ui32arr;
524 	uint64_t ui64, *ui64arr;
525 	int32_t i32, *i32arr;
526 	int64_t i64, *i64arr;
527 	uint_t nelem;
528 	char *str, **strarr;
529 	int err, e;
530 
531 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "prop_create(pgrp = %s, "
532 	    "prop = %s)\n", gnm, pnm);
533 	switch (ptype) {
534 	case TOPO_TYPE_INT32:
535 		e = nvlist_lookup_int32(pfmri, INV_PVAL, &i32);
536 		break;
537 	case TOPO_TYPE_UINT32:
538 		e = nvlist_lookup_uint32(pfmri, INV_PVAL, &ui32);
539 		break;
540 	case TOPO_TYPE_INT64:
541 		e = nvlist_lookup_int64(pfmri, INV_PVAL, &i64);
542 		break;
543 	case TOPO_TYPE_UINT64:
544 		e = nvlist_lookup_uint64(pfmri, INV_PVAL, &ui64);
545 		break;
546 	case TOPO_TYPE_FMRI:
547 		e = nvlist_lookup_nvlist(pfmri, INV_PVAL, &fmri);
548 		break;
549 	case TOPO_TYPE_STRING:
550 		e = nvlist_lookup_string(pfmri, INV_PVAL, &str);
551 		break;
552 	case TOPO_TYPE_INT32_ARRAY:
553 		e = nvlist_lookup_int32_array(pfmri, INV_PVAL, &i32arr, &nelem);
554 		break;
555 	case TOPO_TYPE_UINT32_ARRAY:
556 		e = nvlist_lookup_uint32_array(pfmri, INV_PVAL, &ui32arr,
557 		    &nelem);
558 		break;
559 	case TOPO_TYPE_INT64_ARRAY:
560 		e = nvlist_lookup_int64_array(pfmri, INV_PVAL, &i64arr,
561 		    &nelem);
562 		break;
563 	case TOPO_TYPE_UINT64_ARRAY:
564 		e = nvlist_lookup_uint64_array(pfmri, INV_PVAL, &ui64arr,
565 		    &nelem);
566 		break;
567 	case TOPO_TYPE_STRING_ARRAY:
568 		e = nvlist_lookup_string_array(pfmri, INV_PVAL, &strarr,
569 		    &nelem);
570 		break;
571 	case TOPO_TYPE_FMRI_ARRAY:
572 		e = nvlist_lookup_nvlist_array(pfmri, INV_PVAL, &fmriarr,
573 		    &nelem);
574 		break;
575 	default:
576 		e = ETOPO_PRSR_BADTYPE;
577 	}
578 	if (e != 0) {
579 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
580 		    "prop_create: prop value lookup failed.\n");
581 		return (topo_mod_seterrno(mp, e));
582 	}
583 	switch (ptype) {
584 	case TOPO_TYPE_INT32:
585 		e = topo_prop_set_int32(ptn, gnm, pnm, flag, i32, &err);
586 		break;
587 	case TOPO_TYPE_UINT32:
588 		e = topo_prop_set_uint32(ptn, gnm, pnm, flag, ui32, &err);
589 		break;
590 	case TOPO_TYPE_INT64:
591 		e = topo_prop_set_int64(ptn, gnm, pnm, flag, i64, &err);
592 		break;
593 	case TOPO_TYPE_UINT64:
594 		e = topo_prop_set_uint64(ptn, gnm, pnm, flag, ui64, &err);
595 		break;
596 	case TOPO_TYPE_FMRI:
597 		e = topo_prop_set_fmri(ptn, gnm, pnm, flag, fmri, &err);
598 		break;
599 	case TOPO_TYPE_STRING:
600 		e = topo_prop_set_string(ptn, gnm, pnm, flag, str, &err);
601 		break;
602 	case TOPO_TYPE_INT32_ARRAY:
603 		e = topo_prop_set_int32_array(ptn, gnm, pnm, flag, i32arr,
604 		    nelem, &err);
605 		break;
606 	case TOPO_TYPE_UINT32_ARRAY:
607 		e = topo_prop_set_uint32_array(ptn, gnm, pnm, flag, ui32arr,
608 		    nelem, &err);
609 		break;
610 	case TOPO_TYPE_INT64_ARRAY:
611 		e = topo_prop_set_int64_array(ptn, gnm, pnm, flag, i64arr,
612 		    nelem, &err);
613 		break;
614 	case TOPO_TYPE_UINT64_ARRAY:
615 		e = topo_prop_set_uint64_array(ptn, gnm, pnm, flag, ui64arr,
616 		    nelem, &err);
617 		break;
618 	case TOPO_TYPE_STRING_ARRAY:
619 		e = topo_prop_set_string_array(ptn, gnm, pnm, flag,
620 		    (const char **)strarr, nelem, &err);
621 		break;
622 	case TOPO_TYPE_FMRI_ARRAY:
623 		e = topo_prop_set_fmri_array(ptn, gnm, pnm, flag,
624 		    (const nvlist_t **)fmriarr, nelem, &err);
625 		break;
626 	}
627 	if (e != 0 && err != ETOPO_PROP_DEFD) {
628 
629 		/*
630 		 * Some properties may have already been set
631 		 * in topo_node_bind() or topo_prop_inherit if we are
632 		 * enumerating from a static .xml file
633 		 */
634 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR, "prop set "
635 		    "failed %s/%s:%s\n", gnm, pnm, topo_strerror(err));
636 		return (topo_mod_seterrno(mp, err));
637 	}
638 	return (0);
639 }
640 
641 static int
642 props_create(topo_mod_t *mp,
643     tnode_t *ptn, const char *gnm, nvlist_t **props, int nprops)
644 {
645 	topo_type_t ptype;
646 	boolean_t pim;
647 	char *pnm;
648 	int32_t i32;
649 	int flag;
650 	int pn;
651 	int e;
652 
653 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "props_create(pgrp = %s)\n",
654 	    gnm);
655 	for (pn = 0; pn < nprops; pn++) {
656 		e = nvlist_lookup_string(props[pn], INV_PNAME, &pnm);
657 		if (e != 0) {
658 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
659 			    "props create lookup (%s) failure: %s",
660 			    INV_PNAME, strerror(e));
661 			return (topo_mod_seterrno(mp, ETOPO_PRSR_NVPROP));
662 		}
663 		e = nvlist_lookup_boolean_value(props[pn], INV_IMMUTE, &pim);
664 		if (e != 0) {
665 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
666 			    "props create lookup (%s) failure: %s",
667 			    INV_IMMUTE, strerror(e));
668 			return (topo_mod_seterrno(mp, ETOPO_PRSR_NVPROP));
669 		}
670 		flag = (pim == B_TRUE) ?
671 		    TOPO_PROP_IMMUTABLE : TOPO_PROP_MUTABLE;
672 
673 		e = nvlist_lookup_int32(props[pn], INV_PVALTYPE, &i32);
674 		if (e != 0) {
675 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
676 			    "props create lookup (%s) failure: %s",
677 			    INV_PVALTYPE, strerror(e));
678 			return (topo_mod_seterrno(mp, ETOPO_PRSR_NVPROP));
679 		}
680 		ptype = (topo_type_t)i32;
681 		if (prop_create(mp, props[pn], ptn, gnm, pnm, ptype, flag) < 0)
682 			return (-1);
683 	}
684 	return (0);
685 }
686 
687 static int
688 pgroups_create(topo_mod_t *mp, tf_pad_t *pad, tnode_t *ptn)
689 {
690 	topo_pgroup_info_t pgi;
691 	nvlist_t **props;
692 	char *gnm;
693 	char *nmstab, *dstab;
694 	uint32_t rnprops, nprops;
695 	uint32_t gv;
696 	int pg;
697 	int e;
698 
699 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "pgroups_create: %s=%d\n",
700 	    topo_node_name(ptn), topo_node_instance(ptn));
701 	for (pg = 0; pg < pad->tpad_pgcnt; pg++) {
702 		e = nvlist_lookup_string(pad->tpad_pgs[pg],
703 		    INV_PGRP_NAME, &gnm);
704 		if (e != 0) {
705 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
706 			    "pad lookup (%s) failed (%s).\n",
707 			    INV_PGRP_NAME, strerror(errno));
708 			return (topo_mod_seterrno(mp, ETOPO_PRSR_NVPROP));
709 		}
710 		e = nvlist_lookup_string(pad->tpad_pgs[pg],
711 		    INV_PGRP_NMSTAB, &nmstab);
712 		if (e != 0) {
713 			if (e != ENOENT) {
714 				topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
715 				    "pad lookup (%s) "
716 				    "failed.\n", INV_PGRP_NMSTAB);
717 				return (topo_mod_seterrno(mp,
718 				    ETOPO_PRSR_NVPROP));
719 			} else {
720 				nmstab = TOPO_STABSTR_PRIVATE;
721 			}
722 		}
723 		e = nvlist_lookup_string(pad->tpad_pgs[pg],
724 		    INV_PGRP_DSTAB, &dstab);
725 		if (e != 0) {
726 			if (e != ENOENT) {
727 				topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
728 				    "pad lookup (%s) failed.\n",
729 				    INV_PGRP_DSTAB);
730 				return (topo_mod_seterrno(mp,
731 				    ETOPO_PRSR_NVPROP));
732 			} else {
733 				dstab = TOPO_STABSTR_PRIVATE;
734 			}
735 		}
736 		e = nvlist_lookup_uint32(pad->tpad_pgs[pg],
737 		    INV_PGRP_VER, &gv);
738 		if (e != 0) {
739 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
740 			    "pad lookup (%s) failed.\n",
741 			    INV_PGRP_VER);
742 			return (topo_mod_seterrno(mp, ETOPO_PRSR_NVPROP));
743 		}
744 		pgi.tpi_name = gnm;
745 		pgi.tpi_namestab = topo_name2stability(nmstab);
746 		pgi.tpi_datastab = topo_name2stability(dstab);
747 		pgi.tpi_version = gv;
748 		if (topo_pgroup_create(ptn, &pgi, &e) != 0) {
749 			if (e != ETOPO_PROP_DEFD) {
750 				topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
751 				    "pgroups create failure: %s\n",
752 				    topo_strerror(e));
753 				return (-1);
754 			}
755 		}
756 		e = nvlist_lookup_uint32(pad->tpad_pgs[pg],
757 		    INV_PGRP_NPROP, &rnprops);
758 		/*
759 		 * The number of properties could be zero if the property
760 		 * group only contains propmethod declarations
761 		 */
762 		if (rnprops > 0) {
763 			e |= nvlist_lookup_nvlist_array(pad->tpad_pgs[pg],
764 			    INV_PGRP_ALLPROPS, &props, &nprops);
765 			if (rnprops != nprops) {
766 				topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
767 				    "recorded number of props %d does not "
768 				    "match number of props recorded %d.\n",
769 				    rnprops, nprops);
770 			}
771 			if (props_create(mp, ptn, gnm, props, nprops) < 0)
772 				return (-1);
773 		}
774 	}
775 	return (0);
776 }
777 
778 static nvlist_t *
779 pval_record(topo_mod_t *mp, xmlNodePtr xn)
780 {
781 	nvlist_t *pnvl = NULL;
782 	xmlChar *pname;
783 
784 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "pval_record\n");
785 	if ((pname = xmlGetProp(xn, (xmlChar *)Name)) == NULL) {
786 		topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
787 		    "propval lacks a name\n");
788 		(void) topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR);
789 		return (NULL);
790 	}
791 	if (topo_mod_nvalloc(mp, &pnvl, NV_UNIQUE_NAME) < 0) {
792 		xmlFree(pname);
793 		return (NULL);
794 	}
795 	if (nvlist_add_string(pnvl, INV_PNAME, (char *)pname) < 0) {
796 		xmlFree(pname);
797 		nvlist_free(pnvl);
798 		return (NULL);
799 	}
800 	xmlFree(pname);
801 	/* FMXXX stability of the property name */
802 
803 	if (xmlprop_xlate(mp, xn, pnvl) < 0) {
804 		nvlist_free(pnvl);
805 		return (NULL);
806 	}
807 	return (pnvl);
808 }
809 
810 
811 struct propmeth_data {
812 	const char *pg_name;
813 	const char *prop_name;
814 	topo_type_t prop_type;
815 	const char *meth_name;
816 	topo_version_t meth_ver;
817 	nvlist_t *arg_nvl;
818 };
819 
820 static int
821 register_method(topo_mod_t *mp, tnode_t *ptn, struct propmeth_data *meth)
822 {
823 	int err;
824 
825 	if (topo_prop_method_version_register(ptn, meth->pg_name,
826 	    meth->prop_name, meth->prop_type, meth->meth_name, meth->meth_ver,
827 	    meth->arg_nvl, &err) != 0) {
828 
829 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR, "failed to register "
830 		    "propmethod %s for property \"%s\" in propgrp %s on node "
831 		    "%s=%d (%s)\n",
832 		    meth->meth_name, meth->prop_name, meth->pg_name,
833 		    topo_node_name(ptn), topo_node_instance(ptn),
834 		    topo_strerror(err));
835 		return (-1);
836 	}
837 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
838 	    "registered method %s on %s=%d\n",
839 	    meth->meth_name, topo_node_name(ptn), topo_node_instance(ptn));
840 
841 	return (0);
842 }
843 
844 static int
845 pmeth_record(topo_mod_t *mp, const char *pg_name, xmlNodePtr xn, tnode_t *tn,
846     const char *rname, const char *ppgrp_name)
847 {
848 	nvlist_t *arg_nvl = NULL;
849 	xmlNodePtr cn;
850 	xmlChar *meth_name = NULL, *prop_name = NULL;
851 	xmlChar *arg_name = NULL;
852 	uint64_t meth_ver, is_mutable = 0, is_nonvolatile = 0;
853 	topo_type_t prop_type;
854 	struct propmeth_data meth;
855 	int ret = 0, err;
856 	topo_type_t ptype;
857 	tnode_t *tmp;
858 
859 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "pmeth_record: %s=%d "
860 	    "(pgrp=%s)\n", topo_node_name(tn), topo_node_instance(tn), pg_name);
861 
862 	/*
863 	 * Get propmethod attribute values
864 	 */
865 	if ((meth_name = xmlGetProp(xn, (xmlChar *)Name)) == NULL) {
866 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
867 		    "propmethod element lacks a name attribute\n");
868 		return (topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR));
869 	}
870 	if (xmlattr_to_int(mp, xn, Version, &meth_ver) < 0) {
871 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
872 		    "propmethod element lacks version attribute\n");
873 		ret = topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR);
874 		goto pmr_done;
875 	}
876 	/*
877 	 * The "mutable" and "nonvoltile" attributes are optional.  If not
878 	 * specified we default to false (0)
879 	 */
880 	(void) xmlattr_to_int(mp, xn, Mutable, &is_mutable);
881 	(void) xmlattr_to_int(mp, xn, Nonvolatile, &is_nonvolatile);
882 
883 	if ((prop_name = xmlGetProp(xn, (xmlChar *)Propname)) == NULL) {
884 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
885 		    "propmethod element lacks propname attribute\n");
886 		ret = topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR);
887 		goto pmr_done;
888 	}
889 	if ((prop_type = xmlattr_to_type(mp, xn, (xmlChar *)Proptype))
890 	    == TOPO_TYPE_INVALID) {
891 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
892 		    "error decoding proptype attribute\n");
893 		ret = topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR);
894 		goto pmr_done;
895 	}
896 
897 	/*
898 	 * Allocate method argument nvlist
899 	 */
900 	if (topo_mod_nvalloc(mp, &arg_nvl, NV_UNIQUE_NAME) < 0) {
901 		ret = topo_mod_seterrno(mp, ETOPO_NOMEM);
902 		goto pmr_done;
903 	}
904 
905 	/*
906 	 * Iterate through the argval nodes and build the argval nvlist
907 	 */
908 	for (cn = xn->xmlChildrenNode; cn != NULL; cn = cn->next) {
909 		if (xmlStrcmp(cn->name, (xmlChar *)Argval) == 0) {
910 			topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
911 			    "found argval element\n");
912 			if ((arg_name = xmlGetProp(cn, (xmlChar *)Name))
913 			    == NULL) {
914 				topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
915 				    "argval element lacks a name attribute\n");
916 				ret = topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR);
917 				goto pmr_done;
918 			}
919 			if ((ptype = xmlattr_to_type(mp, cn, (xmlChar *)Type))
920 			    == TOPO_TYPE_INVALID) {
921 				ret = topo_mod_seterrno(mp, ETOPO_PRSR_BADTYPE);
922 				xmlFree(arg_name);
923 				break;
924 			}
925 			if (xlate_common(mp, cn, ptype, arg_nvl,
926 			    (const char *)arg_name) != 0) {
927 				ret = topo_mod_seterrno(mp, ETOPO_PRSR_BADTYPE);
928 				xmlFree(arg_name);
929 				break;
930 			}
931 		}
932 		if (arg_name) {
933 			xmlFree(arg_name);
934 			arg_name = NULL;
935 		}
936 	}
937 
938 	if (ret != 0)
939 		goto pmr_done;
940 
941 	/*
942 	 * Register the prop method for all of the nodes in our range
943 	 */
944 	meth.pg_name = (const char *)pg_name;
945 	meth.prop_name = (const char *)prop_name;
946 	meth.prop_type = prop_type;
947 	meth.meth_name = (const char *)meth_name;
948 	meth.meth_ver = meth_ver;
949 	meth.arg_nvl = arg_nvl;
950 
951 	/*
952 	 * If the propgroup element is under a range element, we'll apply
953 	 * the method to all of the topo nodes at this level with the same
954 	 * range name.
955 	 *
956 	 * Otherwise, if the propgroup element is under a node element
957 	 * then we'll simply register the method for this node.
958 	 */
959 	if (strcmp(ppgrp_name, Range) == 0) {
960 		for (tmp = tn; tmp != NULL; tmp = topo_child_next(NULL, tmp)) {
961 			if (strcmp(rname, topo_node_name(tmp)) == 0) {
962 				if (register_method(mp, tmp, &meth) != 0) {
963 					ret = topo_mod_seterrno(mp,
964 					    ETOPO_PRSR_REGMETH);
965 					goto pmr_done;
966 				}
967 				if (is_mutable) {
968 					if (topo_prop_setmutable(tmp,
969 					    meth.pg_name, meth.prop_name, &err)
970 					    != 0) {
971 						ret = topo_mod_seterrno(mp,
972 						    ETOPO_PRSR_REGMETH);
973 						goto pmr_done;
974 					}
975 				}
976 				if (is_nonvolatile) {
977 					if (topo_prop_setnonvolatile(tmp,
978 					    meth.pg_name, meth.prop_name, &err)
979 					    != 0) {
980 						ret = topo_mod_seterrno(mp,
981 						    ETOPO_PRSR_REGMETH);
982 						goto pmr_done;
983 					}
984 				}
985 			}
986 		}
987 	} else {
988 		if (register_method(mp, tn, &meth) != 0) {
989 			ret = topo_mod_seterrno(mp, ETOPO_PRSR_REGMETH);
990 			goto pmr_done;
991 		}
992 		if (is_mutable) {
993 			if (topo_prop_setmutable(tn, meth.pg_name,
994 			    meth.prop_name, &err) != 0) {
995 				ret = topo_mod_seterrno(mp,
996 				    ETOPO_PRSR_REGMETH);
997 				goto pmr_done;
998 			}
999 		}
1000 		if (is_nonvolatile) {
1001 			if (topo_prop_setnonvolatile(tn, meth.pg_name,
1002 			    meth.prop_name, &err) != 0) {
1003 				ret = topo_mod_seterrno(mp,
1004 				    ETOPO_PRSR_REGMETH);
1005 				goto pmr_done;
1006 			}
1007 		}
1008 	}
1009 
1010 pmr_done:
1011 	if (meth_name)
1012 		xmlFree(meth_name);
1013 	if (prop_name)
1014 		xmlFree(prop_name);
1015 	nvlist_free(arg_nvl);
1016 	return (ret);
1017 }
1018 
1019 
1020 static int
1021 pgroup_record(topo_mod_t *mp, xmlNodePtr pxn, tnode_t *tn, const char *rname,
1022     tf_pad_t *rpad, int pi, const char *ppgrp_name)
1023 {
1024 	topo_stability_t nmstab, dstab;
1025 	uint64_t ver;
1026 	xmlNodePtr cn;
1027 	xmlChar *name;
1028 	nvlist_t **apl = NULL;
1029 	nvlist_t *pgnvl = NULL;
1030 	int pcnt = 0;
1031 	int ai = 0;
1032 	int e;
1033 
1034 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "pgroup_record\n");
1035 	if ((name = xmlGetProp(pxn, (xmlChar *)Name)) == NULL) {
1036 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1037 		    "propgroup lacks a name\n");
1038 		return (topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR));
1039 	}
1040 	if (xmlattr_to_int(mp, pxn, Version, &ver) < 0) {
1041 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1042 		    "propgroup lacks a version\n");
1043 		return (topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR));
1044 	}
1045 	if (xmlattr_to_stab(mp, pxn, Namestab, &nmstab) < 0) {
1046 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1047 		    "propgroup lacks name-stability\n");
1048 		return (topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR));
1049 	}
1050 	if (xmlattr_to_stab(mp, pxn, Datastab, &dstab) < 0) {
1051 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1052 		    "propgroup lacks data-stability\n");
1053 		return (topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR));
1054 	}
1055 
1056 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "pgroup %s\n", (char *)name);
1057 	for (cn = pxn->xmlChildrenNode; cn != NULL; cn = cn->next) {
1058 		if (xmlStrcmp(cn->name, (xmlChar *)Propval) == 0)
1059 			pcnt++;
1060 	}
1061 
1062 	if (topo_mod_nvalloc(mp, &pgnvl, NV_UNIQUE_NAME) < 0) {
1063 		xmlFree(name);
1064 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1065 		    "failed to allocate propgroup nvlist\n");
1066 		return (topo_mod_seterrno(mp, ETOPO_NOMEM));
1067 	}
1068 
1069 	e = nvlist_add_string(pgnvl, INV_PGRP_NAME, (char *)name);
1070 	e |= nvlist_add_uint32(pgnvl, INV_PGRP_NMSTAB, nmstab);
1071 	e |= nvlist_add_uint32(pgnvl, INV_PGRP_DSTAB, dstab);
1072 	e |= nvlist_add_uint32(pgnvl, INV_PGRP_VER, ver);
1073 	e |= nvlist_add_uint32(pgnvl, INV_PGRP_NPROP, pcnt);
1074 	if (pcnt > 0)
1075 		if (e != 0 ||
1076 		    (apl = topo_mod_zalloc(mp, pcnt * sizeof (nvlist_t *)))
1077 		    == NULL) {
1078 			xmlFree(name);
1079 			nvlist_free(pgnvl);
1080 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1081 			    "failed to allocate nvlist array for properties"
1082 			    "(e=%d)\n", e);
1083 			return (topo_mod_seterrno(mp, ETOPO_NOMEM));
1084 		}
1085 	for (cn = pxn->xmlChildrenNode; cn != NULL; cn = cn->next) {
1086 		if (xmlStrcmp(cn->name, (xmlChar *)Propval) == 0) {
1087 			if (ai < pcnt) {
1088 				if ((apl[ai] = pval_record(mp, cn)) == NULL)
1089 					break;
1090 			}
1091 			ai++;
1092 		} else if (xmlStrcmp(cn->name, (xmlChar *)Prop_meth) == 0) {
1093 			if (pmeth_record(mp, (const char *)name, cn, tn, rname,
1094 			    ppgrp_name) < 0)
1095 				break;
1096 		}
1097 	}
1098 	xmlFree(name);
1099 	if (pcnt > 0) {
1100 		e |= (ai != pcnt);
1101 		e |= nvlist_add_nvlist_array(pgnvl, INV_PGRP_ALLPROPS, apl,
1102 		    pcnt);
1103 		for (ai = 0; ai < pcnt; ai++)
1104 			nvlist_free(apl[ai]);
1105 		topo_mod_free(mp, apl, pcnt * sizeof (nvlist_t *));
1106 		if (e != 0) {
1107 			nvlist_free(pgnvl);
1108 			return (-1);
1109 		}
1110 	}
1111 	rpad->tpad_pgs[pi] = pgnvl;
1112 	return (0);
1113 }
1114 
1115 static int
1116 pgroups_record(topo_mod_t *mp, xmlNodePtr pxn, tnode_t *tn, const char *rname,
1117     tf_pad_t *rpad, const char *ppgrp)
1118 {
1119 	xmlNodePtr cn;
1120 	int pi = 0;
1121 
1122 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "pgroups_record: pxn->name=%s\n",
1123 	    pxn->name);
1124 	for (cn = pxn->xmlChildrenNode; cn != NULL; cn = cn->next) {
1125 		if (xmlStrcmp(cn->name, (xmlChar *)Propgrp) == 0) {
1126 			if (pgroup_record(mp, cn, tn, rname, rpad, pi++, ppgrp)
1127 			    < 0)
1128 				return (-1);
1129 		}
1130 	}
1131 	return (0);
1132 }
1133 
1134 /*
1135  * psn:	pointer to a "set" XML node
1136  * key: string to search the set for
1137  *
1138  * returns: 1, if the set contains key
1139  *          0, otherwise
1140  */
1141 static int
1142 set_contains(topo_mod_t *mp, char *key, char *set)
1143 {
1144 	char *prod;
1145 	int rv = 0;
1146 
1147 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "set_contains(key = %s, "
1148 	    "setlist = %s)\n", key, set);
1149 
1150 	prod = strtok((char *)set, "|");
1151 	if (prod && (strcmp(key, prod) == 0))
1152 		return (1);
1153 
1154 	while ((prod = strtok(NULL, "|")))
1155 		if (strcmp(key, prod) == 0)
1156 			return (1);
1157 
1158 	return (rv);
1159 }
1160 
1161 
1162 /*
1163  * Process the property group and dependents xmlNode children of
1164  * parent xmlNode pxn.
1165  */
1166 static int
1167 pad_process(topo_mod_t *mp, tf_rdata_t *rd, xmlNodePtr pxn, tnode_t *ptn,
1168     tf_pad_t **rpad)
1169 {
1170 	xmlNodePtr cn, gcn, psn, ecn, target;
1171 	xmlNodePtr def_set = NULL;
1172 	tnode_t *ct;
1173 	tf_pad_t *new = *rpad;
1174 	tf_rdata_t tmp_rd;
1175 	int pgcnt = 0;
1176 	int dcnt = 0;
1177 	int ecnt = 0;
1178 	int joined_set = 0, inst;
1179 	xmlChar *set;
1180 	char *key;
1181 
1182 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1183 	    "pad_process beneath %s=%d\n", topo_node_name(ptn),
1184 	    topo_node_instance(ptn));
1185 	if (new == NULL) {
1186 		for (cn = pxn->xmlChildrenNode; cn != NULL; cn = cn->next) {
1187 			topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1188 			    "cn->name is %s \n", (char *)cn->name);
1189 			/*
1190 			 * We're iterating through the XML children looking for
1191 			 * four types of elements:
1192 			 *   1) dependents elements
1193 			 *   2) unconstrained pgroup elements
1194 			 *   3) pgroup elements constrained by set elements
1195 			 *   4) enum-method elements for the case that we want
1196 			 *	to post-process a statically defined node
1197 			 */
1198 			if (xmlStrcmp(cn->name, (xmlChar *)Dependents) == 0)
1199 				dcnt++;
1200 			else if (xmlStrcmp(cn->name, (xmlChar *)Propgrp) == 0)
1201 				pgcnt++;
1202 			else if (xmlStrcmp(cn->name, (xmlChar *)Enum_meth)
1203 			    == 0) {
1204 				ecn = cn;
1205 				ecnt++;
1206 			} else if (xmlStrcmp(cn->name, (xmlChar *)Set) == 0) {
1207 				if (joined_set)
1208 					continue;
1209 				set = xmlGetProp(cn, (xmlChar *)Setlist);
1210 
1211 				if (mp->tm_hdl->th_product)
1212 					key = mp->tm_hdl->th_product;
1213 				else
1214 					key = mp->tm_hdl->th_platform;
1215 
1216 				/*
1217 				 * If it's the default set then we'll store
1218 				 * a pointer to it so that if none of the other
1219 				 * sets apply to our product we can fall
1220 				 * back to this one.
1221 				 */
1222 				if (strcmp((char *)set, "default") == 0)
1223 					def_set = cn;
1224 				else if (set_contains(mp, key, (char *)set)) {
1225 					psn = cn;
1226 					joined_set = 1;
1227 					for (gcn = cn->xmlChildrenNode;
1228 					    gcn != NULL; gcn = gcn->next) {
1229 						if (xmlStrcmp(gcn->name,
1230 						    (xmlChar *)Propgrp) == 0)
1231 							pgcnt++;
1232 					}
1233 				}
1234 				xmlFree(set);
1235 			}
1236 		}
1237 		/*
1238 		 * If we haven't found a set that contains our product AND
1239 		 * a default set exists, then we'll process it.
1240 		 */
1241 		if (!joined_set && def_set) {
1242 			topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1243 			    "Falling back to default set\n");
1244 			joined_set = 1;
1245 			psn = def_set;
1246 			for (gcn = psn->xmlChildrenNode; gcn != NULL;
1247 			    gcn = gcn->next) {
1248 				if (xmlStrcmp(gcn->name, (xmlChar *)Propgrp)
1249 				    == 0)
1250 					pgcnt++;
1251 			}
1252 		}
1253 		topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1254 		    "pad_process: dcnt=%d, pgcnt=%d, ecnt=%d, joined_set=%d\n",
1255 		    dcnt, pgcnt, ecnt, joined_set);
1256 		/*
1257 		 * If an enum-method element was found, AND we're a child of a
1258 		 * node element, then we invoke the enumerator so that it can do
1259 		 * post-processing of the node.
1260 		 */
1261 		if (ecnt && (strcmp((const char *)pxn->name, Node) == 0)) {
1262 			if ((tmp_rd.rd_einfo = enum_attributes_process(mp, ecn))
1263 			    == NULL)
1264 				return (-1);
1265 			tmp_rd.rd_mod = mp;
1266 			tmp_rd.rd_name = rd->rd_name;
1267 			tmp_rd.rd_min = rd->rd_min;
1268 			tmp_rd.rd_max = rd->rd_max;
1269 			tmp_rd.rd_pn = ptn;
1270 			if (enum_run(mp, &tmp_rd) < 0) {
1271 				/*
1272 				 * Note the failure but continue on
1273 				 */
1274 				topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1275 				    "pad_process: enumeration failed.\n");
1276 			}
1277 			tf_edata_free(mp, tmp_rd.rd_einfo);
1278 		}
1279 		/*
1280 		 * Here we allocate an element in an intermediate data structure
1281 		 * which keeps track property groups and dependents of the range
1282 		 * currently being processed.
1283 		 *
1284 		 * This structure is referenced in pgroups_record() to create
1285 		 * the actual property groups in the topo tree
1286 		 */
1287 		if ((new = tf_pad_new(mp, pgcnt, dcnt)) == NULL)
1288 			return (-1);
1289 
1290 		if (pgcnt > 0) {
1291 			new->tpad_pgs =
1292 			    topo_mod_zalloc(mp, pgcnt * sizeof (nvlist_t *));
1293 			if (new->tpad_pgs == NULL) {
1294 				tf_pad_free(mp, new);
1295 				return (-1);
1296 			}
1297 		}
1298 		/*
1299 		 * If the property groups are contained within a set
1300 		 * then they will be one level lower in the XML tree.
1301 		 */
1302 		if (joined_set)
1303 			target = psn;
1304 		else
1305 			target = pxn;
1306 
1307 		/*
1308 		 * If there is no "node" element under the "range"
1309 		 * element, then we need to attach the facility node to
1310 		 * each node in this range.
1311 		 *
1312 		 * Otherwise we only attach it to the current node
1313 		 */
1314 		if (xmlStrcmp(target->name, (xmlChar *)Range) == 0 ||
1315 		    xmlStrcmp(target->name, (xmlChar *)Set) == 0) {
1316 			for (ct = topo_child_first(rd->rd_pn);
1317 			    ct != NULL;
1318 			    ct = topo_child_next(rd->rd_pn, ct)) {
1319 
1320 				if (strcmp(topo_node_name(ct),
1321 				    rd->rd_name) != 0)
1322 					continue;
1323 
1324 				inst = topo_node_instance(ct);
1325 				if (inst < rd->rd_min || inst > rd->rd_max)
1326 					continue;
1327 
1328 				if (fac_enum_process(mp, target, ct) < 0)
1329 					return (-1);
1330 
1331 				if (fac_process(mp, target, rd, ct) < 0)
1332 					return (-1);
1333 			}
1334 		} else {
1335 			if (fac_enum_process(mp, target, ptn) < 0)
1336 				return (-1);
1337 			if (fac_process(mp, target, rd, ptn) < 0)
1338 				return (-1);
1339 		}
1340 		if (pgcnt > 0 && pgroups_record(mp, target, ptn, rd->rd_name,
1341 		    new, (const char *)pxn->name) < 0) {
1342 			tf_pad_free(mp, new);
1343 			return (-1);
1344 		}
1345 		*rpad = new;
1346 	}
1347 
1348 	if (new->tpad_dcnt > 0)
1349 		if (dependents_create(mp, rd->rd_finfo, new, pxn, ptn) < 0)
1350 			return (-1);
1351 
1352 	if (new->tpad_pgcnt > 0)
1353 		if (pgroups_create(mp, new, ptn) < 0)
1354 			return (-1);
1355 
1356 	return (0);
1357 }
1358 
1359 
1360 static int
1361 fac_enum_process(topo_mod_t *mp, xmlNodePtr pn, tnode_t *ptn)
1362 {
1363 	xmlNodePtr cn;
1364 	xmlChar *fprov = NULL;
1365 	int rv = 0;
1366 
1367 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1368 	    "fac_enum_process() called for %s=%d\n", topo_node_name(ptn),
1369 	    topo_node_instance(ptn));
1370 
1371 	for (cn = pn->xmlChildrenNode; cn != NULL; cn = cn->next) {
1372 
1373 		if (xmlStrcmp(cn->name, (xmlChar *)"fac-enum") != 0)
1374 			continue;
1375 
1376 		if ((fprov = xmlGetProp(cn, (xmlChar *)Provider)) == NULL)
1377 			goto fenumdone;
1378 		/*
1379 		 * Invoke enum entry point in facility provider which will
1380 		 * cause the facility enumeration node method to be
1381 		 * registered.
1382 		 */
1383 		if (fac_enum_run(mp, ptn, (const char *)fprov) != 0) {
1384 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1385 			    "fac_enum_process: enum entry point failed!\n");
1386 			goto fenumdone;
1387 		}
1388 		xmlFree(fprov);
1389 	}
1390 	return (0);
1391 fenumdone:
1392 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "fac-enum processing failed\n");
1393 
1394 	if (fprov != NULL)
1395 		xmlFree(fprov);
1396 
1397 	return (rv);
1398 }
1399 
1400 
1401 static int
1402 fac_process(topo_mod_t *mp, xmlNodePtr pn, tf_rdata_t *rd, tnode_t *ptn)
1403 {
1404 	xmlNodePtr cn;
1405 	xmlChar *fname = NULL, *ftype = NULL, *provider = NULL;
1406 	tnode_t *ntn = NULL;
1407 	tf_idata_t *newi;
1408 	int err;
1409 	topo_pgroup_info_t pgi;
1410 
1411 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1412 	    "fac_process() called for %s=%d\n", topo_node_name(ptn),
1413 	    topo_node_instance(ptn));
1414 
1415 	for (cn = pn->xmlChildrenNode; cn != NULL; cn = cn->next) {
1416 
1417 		if (xmlStrcmp(cn->name, (xmlChar *)Facility) != 0)
1418 			continue;
1419 
1420 		if ((fname = xmlGetProp(cn, (xmlChar *)Name)) == NULL)
1421 			goto facdone;
1422 
1423 		topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1424 		    "processing facility node '%s'\n", fname);
1425 
1426 		if ((ftype = xmlGetProp(cn, (xmlChar *)Type)) == NULL)
1427 			goto facdone;
1428 
1429 		if ((provider = xmlGetProp(cn, (xmlChar *)Provider)) == NULL)
1430 			goto facdone;
1431 
1432 		if (xmlStrcmp(ftype, (xmlChar *)Sensor) != 0 &&
1433 		    xmlStrcmp(ftype, (xmlChar *)Indicator) != 0)
1434 			goto facdone;
1435 
1436 		if ((ntn = topo_node_facbind(mp, ptn, (char *)fname,
1437 		    (char *)ftype)) == NULL)
1438 			goto facdone;
1439 
1440 		pgi.tpi_name = TOPO_PGROUP_FACILITY;
1441 		pgi.tpi_namestab = TOPO_STABILITY_PRIVATE;
1442 		pgi.tpi_datastab = TOPO_STABILITY_PRIVATE;
1443 		pgi.tpi_version = 1;
1444 		if (topo_pgroup_create(ntn, &pgi, &err) != 0) {
1445 			if (err != ETOPO_PROP_DEFD) {
1446 				topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1447 				    "pgroups create failure: %s\n",
1448 				    topo_strerror(err));
1449 				return (-1);
1450 			}
1451 		}
1452 		/*
1453 		 * Invoke enum entry point in the facility provider module,
1454 		 * which will cause the provider methods to be registered on
1455 		 * this node
1456 		 */
1457 		if (fac_enum_run(mp, ntn, (const char *)provider) != 0) {
1458 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR, "fac_process: "
1459 			    "enum entry point failed for provider %s!\n",
1460 			    provider);
1461 			goto facdone;
1462 		}
1463 
1464 		if ((newi = tf_idata_new(mp, 0, ntn)) == NULL)
1465 			goto facdone;
1466 
1467 		if (tf_idata_insert(&rd->rd_instances, newi) < 0)
1468 			goto facdone;
1469 
1470 		if (pad_process(mp, rd, cn, ntn, &newi->ti_pad) < 0)
1471 			goto facdone;
1472 
1473 		topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "done with "
1474 		    "facility %s=%s.\n", ftype, fname);
1475 
1476 		xmlFree(ftype);
1477 		xmlFree(fname);
1478 		xmlFree(provider);
1479 	}
1480 
1481 	return (0);
1482 
1483 facdone:
1484 	topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR, "facility processing failed\n");
1485 
1486 	if (ftype != NULL)
1487 		xmlFree(ftype);
1488 	if (fname != NULL)
1489 		xmlFree(fname);
1490 	if (provider != NULL)
1491 		xmlFree(provider);
1492 	if (ntn != NULL)
1493 		topo_node_unbind(ntn);
1494 
1495 	return (0);
1496 }
1497 
1498 static int
1499 node_process(topo_mod_t *mp, xmlNodePtr nn, tf_rdata_t *rd)
1500 {
1501 	xmlChar *str;
1502 	topo_instance_t inst;
1503 	tf_idata_t *newi;
1504 	tnode_t *ntn;
1505 	uint64_t ui;
1506 	int rv = -1;
1507 	int s = 0;
1508 
1509 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1510 	    "node_process %s\n", rd->rd_name);
1511 
1512 	if (xmlattr_to_int(mp, nn, Instance, &ui) < 0)
1513 		goto nodedone;
1514 	inst = (topo_instance_t)ui;
1515 
1516 	if ((str = xmlGetProp(nn, (xmlChar *)Static)) != NULL) {
1517 		if (xmlStrcmp(str, (xmlChar *)True) == 0)
1518 			s = 1;
1519 		xmlFree(str);
1520 	}
1521 
1522 	if (s == 0) {
1523 		if (topo_mod_enumerate(rd->rd_mod, rd->rd_pn,
1524 		    rd->rd_finfo->tf_scheme, rd->rd_name, inst, inst,
1525 		    s == 1 ? &s : NULL) < 0)
1526 			goto nodedone;
1527 	}
1528 	ntn = topo_node_lookup(rd->rd_pn, rd->rd_name, inst);
1529 
1530 	if (ntn == NULL) {
1531 
1532 		/*
1533 		 * If this is a static node declaration, we can
1534 		 * ignore the lookup failure and continue
1535 		 * processing.  Otherwise, something
1536 		 * went wrong during enumeration
1537 		 */
1538 		if (s == 1)
1539 			rv = 0;
1540 		goto nodedone;
1541 	}
1542 	if ((newi = tf_idata_new(mp, inst, ntn)) == NULL) {
1543 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1544 		    "node_process: tf_idata_new failed.\n");
1545 		goto nodedone;
1546 	}
1547 	if (tf_idata_insert(&rd->rd_instances, newi) < 0) {
1548 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1549 		    "node_process: tf_idata_insert failed.\n");
1550 		goto nodedone;
1551 	}
1552 	if (pad_process(mp, rd, nn, ntn, &newi->ti_pad) < 0)
1553 		goto nodedone;
1554 	if (fac_process(mp, nn, rd, ntn) < 0)
1555 		goto nodedone;
1556 	rv = 0;
1557 nodedone:
1558 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "done with node %s.\n",
1559 	    rd->rd_name);
1560 	return (rv);
1561 }
1562 
1563 static tf_edata_t *
1564 enum_attributes_process(topo_mod_t *mp, xmlNodePtr en)
1565 {
1566 	tf_edata_t *einfo;
1567 	uint64_t ui;
1568 
1569 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "enum_attributes_process\n");
1570 	if ((einfo = topo_mod_zalloc(mp, sizeof (tf_edata_t))) == NULL) {
1571 		(void) topo_mod_seterrno(mp, ETOPO_NOMEM);
1572 		return (NULL);
1573 	}
1574 	einfo->te_name = (char *)xmlGetProp(en, (xmlChar *)Name);
1575 	if (einfo->te_name == NULL) {
1576 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1577 		    "Enumerator name attribute missing.\n");
1578 		(void) topo_mod_seterrno(mp, ETOPO_PRSR_NOATTR);
1579 		goto enodedone;
1580 	}
1581 
1582 	/*
1583 	 * Check for recursive enumeration
1584 	 */
1585 	if (strcmp(einfo->te_name, mp->tm_name) == 0) {
1586 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1587 		    "Recursive enumeration detected for %s\n",
1588 		    einfo->te_name);
1589 		(void) topo_mod_seterrno(mp, ETOPO_ENUM_RECURS);
1590 		goto enodedone;
1591 	}
1592 	if (xmlattr_to_int(mp, en, Version, &ui) < 0)
1593 		goto enodedone;
1594 	einfo->te_vers = (int)ui;
1595 
1596 	return (einfo);
1597 
1598 enodedone:
1599 	if (einfo->te_name != NULL)
1600 		xmlFree(einfo->te_name);
1601 	topo_mod_free(mp, einfo, sizeof (tf_edata_t));
1602 	return (NULL);
1603 }
1604 
1605 static int
1606 enum_run(topo_mod_t *mp, tf_rdata_t *rd)
1607 {
1608 	topo_hdl_t *thp = mp->tm_hdl;
1609 	int e = -1;
1610 
1611 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "enum_run\n");
1612 	/*
1613 	 * Check if the enumerator module is already loaded.
1614 	 * Module loading is single-threaded at this point so there's
1615 	 * no need to worry about the module going away or bumping the
1616 	 * ref count.
1617 	 */
1618 	if ((rd->rd_mod = topo_mod_lookup(thp, rd->rd_einfo->te_name,
1619 	    0)) == NULL) {
1620 		if ((rd->rd_mod = topo_mod_load(mp, rd->rd_einfo->te_name,
1621 		    rd->rd_einfo->te_vers)) == NULL) {
1622 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1623 			    "enum_run: mod_load of %s failed: %s.\n",
1624 			    rd->rd_einfo->te_name,
1625 			    topo_strerror(topo_mod_errno(mp)));
1626 			(void) topo_hdl_seterrno(thp, topo_mod_errno(mp));
1627 			return (e);
1628 		}
1629 	}
1630 	/*
1631 	 * We're live, so let's enumerate.
1632 	 */
1633 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "enumerate request. (%s)\n",
1634 	    rd->rd_einfo->te_name);
1635 	e = topo_mod_enumerate(rd->rd_mod, rd->rd_pn, rd->rd_einfo->te_name,
1636 	    rd->rd_name, rd->rd_min, rd->rd_max, NULL);
1637 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "back from enumeration. %d\n",
1638 	    e);
1639 	if (e != 0) {
1640 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1641 		    "Enumeration failed (%s)\n",
1642 		    topo_strerror(topo_mod_errno(mp)));
1643 		(void) topo_hdl_seterrno(thp, EMOD_PARTIAL_ENUM);
1644 		return (topo_mod_seterrno(mp, EMOD_PARTIAL_ENUM));
1645 	}
1646 	return (e);
1647 }
1648 
1649 static int
1650 fac_enum_run(topo_mod_t *mp, tnode_t *node, const char *name)
1651 {
1652 	topo_hdl_t *thp = mp->tm_hdl;
1653 	topo_mod_t *fmod;
1654 	int e = -1;
1655 
1656 	topo_dprintf(thp, TOPO_DBG_XML, "fac_enum_run\n");
1657 	/*
1658 	 * Check if the enumerator module is already loaded.
1659 	 * Module loading is single-threaded at this point so there's
1660 	 * no need to worry about the module going away or bumping the
1661 	 * ref count.
1662 	 */
1663 	if ((fmod = topo_mod_lookup(thp, name, 0)) == NULL) {
1664 		if ((fmod = topo_mod_load(mp, name, TOPO_VERSION)) == NULL) {
1665 			topo_dprintf(thp, TOPO_DBG_ERR,
1666 			    "fac_enum_run: mod_load of %s failed: %s.\n",
1667 			    name, topo_strerror(topo_mod_errno(mp)));
1668 			(void) topo_hdl_seterrno(thp, topo_mod_errno(mp));
1669 			return (e);
1670 		}
1671 	}
1672 	/*
1673 	 * We're live, so let's enumerate.
1674 	 */
1675 	topo_dprintf(thp, TOPO_DBG_XML, "fac enumerate request. (%s)\n", name);
1676 	e = topo_mod_enumerate(fmod, node, name, name, 0, 0, NULL);
1677 	topo_dprintf(thp, TOPO_DBG_XML, "back from enumeration. %d\n", e);
1678 	if (e != 0) {
1679 		topo_dprintf(thp, TOPO_DBG_ERR,
1680 		    "Facility provider enumeration failed (%s)\n",
1681 		    topo_strerror(topo_mod_errno(mp)));
1682 		(void) topo_hdl_seterrno(thp, EMOD_PARTIAL_ENUM);
1683 		return (topo_mod_seterrno(mp, EMOD_PARTIAL_ENUM));
1684 	}
1685 	return (e);
1686 }
1687 
1688 int
1689 decorate_nodes(topo_mod_t *mp, tf_rdata_t *rd, xmlNodePtr pxn, tnode_t *ptn,
1690     tf_pad_t **rpad)
1691 {
1692 	tnode_t *ctn;
1693 
1694 	ctn = topo_child_first(ptn);
1695 	while (ctn != NULL) {
1696 		/* Only care about instances within the range */
1697 		if (strcmp(topo_node_name(ctn), rd->rd_name) != 0) {
1698 			ctn = topo_child_next(ptn, ctn);
1699 			continue;
1700 		}
1701 		if (pad_process(mp, rd, pxn, ctn, rpad) < 0)
1702 			return (-1);
1703 		if (decorate_nodes(mp, rd, pxn, ctn, rpad) < 0)
1704 			return (-1);
1705 		ctn = topo_child_next(ptn, ctn);
1706 	}
1707 	return (0);
1708 }
1709 
1710 int
1711 topo_xml_range_process(topo_mod_t *mp, xmlNodePtr rn, tf_rdata_t *rd)
1712 {
1713 	/*
1714 	 * The range may have several children xmlNodes, that may
1715 	 * represent the enumeration method, property groups,
1716 	 * dependents, nodes or services.
1717 	 */
1718 	xmlNodePtr cn, enum_node = NULL, pmap_node = NULL;
1719 	xmlChar *pmap_name;
1720 	tnode_t *ct;
1721 	int e, ccnt = 0;
1722 
1723 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "topo_xml_range_process\n"
1724 	    "process %s range beneath %s\n", rd->rd_name,
1725 	    topo_node_name(rd->rd_pn));
1726 
1727 	e = topo_node_range_create(mp,
1728 	    rd->rd_pn, rd->rd_name, rd->rd_min, rd->rd_max);
1729 	if (e != 0 && topo_mod_errno(mp) != EMOD_NODE_DUP) {
1730 		topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1731 		    "Range create failed due to %s.\n",
1732 		    topo_strerror(topo_mod_errno(mp)));
1733 		return (-1);
1734 	}
1735 
1736 	/*
1737 	 * Before we process any of the other child xmlNodes, we iterate through
1738 	 * the children and looking for either enum-method or propmap elements.
1739 	 */
1740 	for (cn = rn->xmlChildrenNode; cn != NULL; cn = cn->next)
1741 		if (xmlStrcmp(cn->name, (xmlChar *)Enum_meth) == 0)
1742 			enum_node = cn;
1743 		else if (xmlStrcmp(cn->name, (xmlChar *)Propmap) == 0)
1744 			pmap_node = cn;
1745 
1746 	/*
1747 	 * If we found an enum-method element, process it first
1748 	 */
1749 	if (enum_node != NULL) {
1750 		if ((rd->rd_einfo = enum_attributes_process(mp, enum_node))
1751 		    == NULL)
1752 			return (-1);
1753 		if (enum_run(mp, rd) < 0) {
1754 			/*
1755 			 * Note the failure but continue on
1756 			 */
1757 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1758 			    "Enumeration failed.\n");
1759 		}
1760 	}
1761 
1762 	/*
1763 	 * Next, check if a propmap element was found and if so, load it in
1764 	 * and parse it.
1765 	 */
1766 	if (pmap_node != NULL) {
1767 		topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "found a propmap "
1768 		    "element\n");
1769 		if ((pmap_name = xmlGetProp(pmap_node, (xmlChar *)Name))
1770 		    == NULL) {
1771 			topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1772 			    "propmap element missing name attribute.\n");
1773 		} else {
1774 			if (topo_file_load(mp, rd->rd_pn,
1775 			    (const char *)pmap_name,
1776 			    rd->rd_finfo->tf_scheme, 1) < 0) {
1777 
1778 				topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1779 				    "topo_xml_range_process: topo_file_load"
1780 				    "failed: %s.\n",
1781 				    topo_strerror(topo_mod_errno(mp)));
1782 			}
1783 			xmlFree(pmap_name);
1784 		}
1785 	}
1786 
1787 	/* Now look for nodes, i.e., hard instances */
1788 	for (cn = rn->xmlChildrenNode; cn != NULL; cn = cn->next) {
1789 		if (xmlStrcmp(cn->name, (xmlChar *)Node) == 0) {
1790 			if (node_process(mp, cn, rd) < 0) {
1791 				topo_dprintf(mp->tm_hdl, TOPO_DBG_ERR,
1792 				    "node processing failed: %s.\n",
1793 				    topo_strerror(topo_mod_errno(mp)));
1794 				return (topo_mod_seterrno(mp,
1795 				    EMOD_PARTIAL_ENUM));
1796 			}
1797 			ccnt++;
1798 		}
1799 	}
1800 
1801 	/*
1802 	 * Finally, process the property groups and dependents
1803 	 *
1804 	 * If the TF_PROPMAP flag is set for the XML file we're currently
1805 	 * processing, then this XML file was loaded via propmap.  In that case
1806 	 * we call a special routine to recursively apply the propgroup settings
1807 	 * to all of nodes in this range
1808 	 */
1809 	if (rd->rd_finfo->tf_flags & TF_PROPMAP)
1810 		(void) decorate_nodes(mp, rd, rn, rd->rd_pn, &rd->rd_pad);
1811 	else {
1812 		ct = topo_child_first(rd->rd_pn);
1813 		while (ct != NULL) {
1814 			/* Only care about instances within the range */
1815 			if (strcmp(topo_node_name(ct), rd->rd_name) != 0) {
1816 				ct = topo_child_next(rd->rd_pn, ct);
1817 				continue;
1818 			}
1819 			if (pad_process(mp, rd, rn, ct, &rd->rd_pad)
1820 			    < 0)
1821 				return (-1);
1822 
1823 			if (fac_process(mp, rn, rd, ct) < 0)
1824 				return (-1);
1825 
1826 			ct = topo_child_next(rd->rd_pn, ct);
1827 			ccnt++;
1828 		}
1829 	}
1830 
1831 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "topo_xml_range_process: end "
1832 	    "range process %s\n", rd->rd_name);
1833 
1834 	return (0);
1835 }
1836 
1837 static tf_rdata_t *
1838 topo_xml_walk(topo_mod_t *mp,
1839     tf_info_t *xinfo, xmlNodePtr croot, tnode_t *troot)
1840 {
1841 	xmlNodePtr curr, def_set = NULL;
1842 	tf_rdata_t *rr, *pr, *rdp;
1843 	xmlChar *set;
1844 	char *key;
1845 	int joined_set = 0;
1846 
1847 	topo_dprintf(mp->tm_hdl, TOPO_DBG_XML, "topo_xml_walk\n");
1848 	rr = pr = NULL;
1849 	/*
1850 	 * First iterate through all the XML nodes at this level to look for
1851 	 * set nodes.
1852 	 */
1853 	for (curr = croot->xmlChildrenNode; curr != NULL; curr = curr->next) {
1854 		if (curr->name == NULL) {
1855 			topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1856 			    "topo_xml_walk: Ignoring nameless xmlnode\n");
1857 			continue;
1858 		}
1859 		if (xmlStrcmp(curr->name, (xmlChar *)Set) == 0) {
1860 			if (joined_set)
1861 				continue;
1862 
1863 			set = xmlGetProp(curr, (xmlChar *)Setlist);
1864 
1865 			if (mp->tm_hdl->th_product)
1866 				key = mp->tm_hdl->th_product;
1867 			else
1868 				key = mp->tm_hdl->th_platform;
1869 
1870 			/*
1871 			 * If it's the default set then we'll store
1872 			 * a pointer to it so that if none of the other
1873 			 * sets apply to our product we can fall
1874 			 * back to this one.
1875 			 */
1876 			if (strcmp((char *)set, "default") == 0)
1877 				def_set = curr;
1878 			else if (set_contains(mp, key, (char *)set)) {
1879 				joined_set = 1;
1880 				if ((rdp = topo_xml_walk(mp, xinfo, curr,
1881 				    troot)) == NULL) {
1882 					topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1883 					    "topo_xml_walk: failed1\n");
1884 				} else {
1885 					if (pr == NULL) {
1886 						rr = pr = rdp;
1887 					} else {
1888 						pr->rd_next = rdp;
1889 						pr = rdp;
1890 					}
1891 					rr->rd_cnt++;
1892 				}
1893 			}
1894 			xmlFree(set);
1895 		}
1896 	}
1897 	/*
1898 	 * If we haven't found a set that contains our product AND a default set
1899 	 * exists, then we'll process it.
1900 	 */
1901 	if (!joined_set && def_set) {
1902 		if ((rdp = topo_xml_walk(mp, xinfo, def_set, troot)) == NULL) {
1903 			topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1904 			    "topo_xml_walk: failed2\n");
1905 		}
1906 		if (pr == NULL) {
1907 			rr = pr = rdp;
1908 		} else {
1909 			pr->rd_next = rdp;
1910 			pr = rdp;
1911 		}
1912 		rr->rd_cnt++;
1913 	}
1914 	/*
1915 	 * Now we're interested in children xmlNodes of croot tagged
1916 	 * as 'ranges'.  These define what topology nodes may exist, and need
1917 	 * to be verified.
1918 	 */
1919 	for (curr = croot->xmlChildrenNode; curr != NULL; curr = curr->next) {
1920 		if (curr->name == NULL) {
1921 			topo_dprintf(mp->tm_hdl, TOPO_DBG_XML,
1922 			    "topo_xml_walk: Ignoring nameless xmlnode\n");
1923 			continue;
1924 		}
1925 		if (xmlStrcmp(curr->name, (xmlChar *)Range) != 0)
1926 			continue;
1927 		if ((rdp = tf_rdata_new(mp, xinfo, curr, troot)) == NULL) {
1928 			/*
1929 			 * Range processing error, continue walk
1930 			 */
1931 			continue;
1932 		}
1933 		if (pr == NULL) {
1934 			rr = pr = rdp;
1935 		} else {
1936 			pr->rd_next = rdp;
1937 			pr = rdp;
1938 		}
1939 		rr->rd_cnt++;
1940 	}
1941 
1942 	return (rr);
1943 }
1944 
1945 /*
1946  *  Convert parsed xml topology description into topology nodes
1947  */
1948 int
1949 topo_xml_enum(topo_mod_t *tmp, tf_info_t *xinfo, tnode_t *troot)
1950 {
1951 	xmlNodePtr xroot;
1952 
1953 	topo_dprintf(tmp->tm_hdl, TOPO_DBG_XML, "topo_xml_enum\n");
1954 
1955 	if ((xroot = xmlDocGetRootElement(xinfo->tf_xdoc)) == NULL) {
1956 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
1957 		    "Couldn't get root xmlNode.\n");
1958 		return (-1);
1959 	}
1960 	if ((xinfo->tf_rd = topo_xml_walk(tmp, xinfo, xroot, troot)) == NULL) {
1961 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
1962 		    "error within .xml topology: %s\n",
1963 		    topo_strerror(topo_mod_errno(tmp)));
1964 		return (-1);
1965 	}
1966 	return (0);
1967 }
1968 
1969 /*
1970  * Load an XML tree from filename and read it into a DOM parse tree.
1971  */
1972 static tf_info_t *
1973 txml_file_parse(topo_mod_t *tmp,
1974     int fd, const char *filenm, const char *escheme)
1975 {
1976 	xmlValidCtxtPtr vcp;
1977 	xmlNodePtr cursor;
1978 	xmlDocPtr document;
1979 	xmlDtdPtr dtd = NULL;
1980 	xmlChar *scheme = NULL;
1981 	char *dtdpath = NULL;
1982 	int readflags = 0;
1983 	tf_info_t *r;
1984 	int e, validate = 0;
1985 
1986 	topo_dprintf(tmp->tm_hdl, TOPO_DBG_XML,
1987 	    "txml_file_parse(filenm=%s, escheme=%s)\n", filenm, escheme);
1988 
1989 	/*
1990 	 * Since topologies can XInclude other topologies, and libxml2
1991 	 * doesn't do DTD-based validation with XInclude, by default
1992 	 * we don't validate topology files.  One can force
1993 	 * validation, though, by creating a TOPOXML_VALIDATE
1994 	 * environment variable and creating a TOPO_DTD environment
1995 	 * variable with the path to the DTD against which to validate.
1996 	 */
1997 	if (getenv("TOPOXML_VALIDATE") != NULL) {
1998 		dtdpath = getenv("TOPO_DTD");
1999 		if (dtdpath != NULL)
2000 			xmlLoadExtDtdDefaultValue = 0;
2001 		validate = 1;
2002 	}
2003 
2004 	/*
2005 	 * Splat warnings and errors related to parsing the topology
2006 	 * file if the TOPOXML_PERROR environment variable exists.
2007 	 */
2008 	if (getenv("TOPOXML_PERROR") == NULL)
2009 		readflags = XML_PARSE_NOERROR | XML_PARSE_NOWARNING;
2010 
2011 	if ((document = xmlReadFd(fd, filenm, NULL, readflags)) == NULL) {
2012 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
2013 		    "txml_file_parse: couldn't parse document.\n");
2014 		return (NULL);
2015 	}
2016 
2017 	/*
2018 	 * Verify that this is a document type we understand.
2019 	 */
2020 	if ((dtd = xmlGetIntSubset(document)) == NULL) {
2021 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
2022 		    "document has no DTD.\n");
2023 		xmlFreeDoc(document);
2024 		return (NULL);
2025 	}
2026 
2027 	if (strcmp((const char *)dtd->SystemID, TOPO_DTD_PATH) != 0) {
2028 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
2029 		    "document DTD unknown; bad topology file\n");
2030 		xmlFreeDoc(document);
2031 		return (NULL);
2032 	}
2033 
2034 	if ((cursor = xmlDocGetRootElement(document)) == NULL) {
2035 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR, "document is empty.\n");
2036 		xmlFreeDoc(document);
2037 		return (NULL);
2038 	}
2039 
2040 	/*
2041 	 * Make sure we're looking at a topology description in the
2042 	 * expected scheme.
2043 	 */
2044 	if (xmlStrcmp(cursor->name, (xmlChar *)Topology) != 0) {
2045 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
2046 		    "document is not a topology description.\n");
2047 		xmlFreeDoc(document);
2048 		return (NULL);
2049 	}
2050 	if ((scheme = xmlGetProp(cursor, (xmlChar *)Scheme)) == NULL) {
2051 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
2052 		    "topology lacks a scheme.\n");
2053 		(void) topo_mod_seterrno(tmp, ETOPO_PRSR_NOATTR);
2054 		xmlFreeDoc(document);
2055 		return (NULL);
2056 	}
2057 	if (xmlStrcmp(scheme, (xmlChar *)escheme) != 0) {
2058 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
2059 		    "topology in unrecognized scheme, %s, expecting %s\n",
2060 		    scheme, escheme);
2061 		(void) topo_mod_seterrno(tmp, ETOPO_PRSR_BADSCH);
2062 		xmlFree(scheme);
2063 		xmlFreeDoc(document);
2064 		return (NULL);
2065 	}
2066 
2067 	if (dtdpath != NULL) {
2068 		dtd = xmlParseDTD(NULL, (xmlChar *)dtdpath);
2069 		if (dtd == NULL) {
2070 			topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
2071 			    "Could not parse DTD \"%s\".\n",
2072 			    dtdpath);
2073 			xmlFree(scheme);
2074 			xmlFreeDoc(document);
2075 			return (NULL);
2076 		}
2077 
2078 		if (document->extSubset != NULL)
2079 			xmlFreeDtd(document->extSubset);
2080 
2081 		document->extSubset = dtd;
2082 	}
2083 
2084 	if (xmlXIncludeProcessFlags(document, XML_PARSE_XINCLUDE) == -1) {
2085 		xmlFree(scheme);
2086 		xmlFreeDoc(document);
2087 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
2088 		    "couldn't handle XInclude statements in document\n");
2089 		return (NULL);
2090 	}
2091 
2092 	if (validate) {
2093 		if ((vcp = xmlNewValidCtxt()) == NULL) {
2094 			xmlFree(scheme);
2095 			xmlFreeDoc(document);
2096 			return (NULL);
2097 		}
2098 		vcp->warning = xmlParserValidityWarning;
2099 		vcp->error = xmlParserValidityError;
2100 
2101 		e = xmlValidateDocument(vcp, document);
2102 
2103 		xmlFreeValidCtxt(vcp);
2104 
2105 		if (e == 0)
2106 			topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
2107 			    "Document is not valid.\n");
2108 	}
2109 
2110 	if ((r = tf_info_new(tmp, document, scheme)) == NULL) {
2111 		xmlFree(scheme);
2112 		xmlFreeDoc(document);
2113 		return (NULL);
2114 	}
2115 
2116 	xmlFree(scheme);
2117 	scheme = NULL;
2118 	return (r);
2119 }
2120 
2121 tf_info_t *
2122 topo_xml_read(topo_mod_t *tmp, const char *path, const char *escheme)
2123 {
2124 	int fd;
2125 	tf_info_t *tip;
2126 
2127 	if ((fd = open(path, O_RDONLY)) < 0) {
2128 		topo_dprintf(tmp->tm_hdl, TOPO_DBG_ERR,
2129 		    "failed to open %s for reading\n", path);
2130 		return (NULL);
2131 	}
2132 	tip = txml_file_parse(tmp, fd, path, escheme);
2133 	(void) close(fd);
2134 	return (tip);
2135 }
2136