xref: /titanic_50/usr/src/cmd/devfsadm/misc_link.c (revision 4e4761498aa6990539820cfc2ee7b1c7c53b6bc3) 
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  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 #include <regex.h>
29 #include <devfsadm.h>
30 #include <stdio.h>
31 #include <strings.h>
32 #include <stdlib.h>
33 #include <limits.h>
34 #include <sys/zone.h>
35 #include <sys/zcons.h>
36 #include <sys/cpuid_drv.h>
37 
38 static int display(di_minor_t minor, di_node_t node);
39 static int parallel(di_minor_t minor, di_node_t node);
40 static int node_slash_minor(di_minor_t minor, di_node_t node);
41 static int driver_minor(di_minor_t minor, di_node_t node);
42 static int node_name(di_minor_t minor, di_node_t node);
43 static int minor_name(di_minor_t minor, di_node_t node);
44 static int wifi_minor_name(di_minor_t minor, di_node_t node);
45 static int conskbd(di_minor_t minor, di_node_t node);
46 static int consms(di_minor_t minor, di_node_t node);
47 static int power_button(di_minor_t minor, di_node_t node);
48 static int fc_port(di_minor_t minor, di_node_t node);
49 static int printer_create(di_minor_t minor, di_node_t node);
50 static int se_hdlc_create(di_minor_t minor, di_node_t node);
51 static int ppm(di_minor_t minor, di_node_t node);
52 static int gpio(di_minor_t minor, di_node_t node);
53 static int av_create(di_minor_t minor, di_node_t node);
54 static int tsalarm_create(di_minor_t minor, di_node_t node);
55 static int ntwdt_create(di_minor_t minor, di_node_t node);
56 static int zcons_create(di_minor_t minor, di_node_t node);
57 static int cpuid(di_minor_t minor, di_node_t node);
58 static int glvc(di_minor_t minor, di_node_t node);
59 static int ses_callback(di_minor_t minor, di_node_t node);
60 static int kmdrv_create(di_minor_t minor, di_node_t node);
61 
62 static devfsadm_create_t misc_cbt[] = {
63 	{ "pseudo", "ddi_pseudo", "(^sad$)",
64 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_slash_minor
65 	},
66 	{ "pseudo", "ddi_pseudo", "zsh",
67 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, driver_minor
68 	},
69 	{ "network", "ddi_network", NULL,
70 	    TYPE_EXACT, ILEVEL_0, minor_name
71 	},
72 	{ "wifi", "ddi_network:wifi", NULL,
73 	    TYPE_EXACT, ILEVEL_0, wifi_minor_name
74 	},
75 	{ "display", "ddi_display", NULL,
76 	    TYPE_EXACT, ILEVEL_0, display
77 	},
78 	{ "parallel", "ddi_parallel", NULL,
79 	    TYPE_EXACT, ILEVEL_0, parallel
80 	},
81 	{ "enclosure", DDI_NT_SCSI_ENCLOSURE, NULL,
82 	    TYPE_EXACT, ILEVEL_0, ses_callback
83 	},
84 	{ "pseudo", "ddi_pseudo", "(^winlock$)|(^pm$)",
85 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_name
86 	},
87 	{ "pseudo", "ddi_pseudo", "conskbd",
88 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, conskbd
89 	},
90 	{ "pseudo", "ddi_pseudo", "consms",
91 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, consms
92 	},
93 	{ "pseudo", "ddi_pseudo", "rsm",
94 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
95 	},
96 	{ "pseudo", "ddi_pseudo",
97 	    "(^lockstat$)|(^SUNW,rtvc$)|(^vol$)|(^log$)|(^sy$)|"
98 	    "(^ksyms$)|(^clone$)|(^tl$)|(^tnf$)|(^kstat$)|(^mdesc$)|"
99 	    "(^eeprom$)|(^ptsl$)|(^mm$)|(^wc$)|(^dump$)|(^cn$)|(^lo$)|(^ptm$)|"
100 	    "(^ptc$)|(^openeepr$)|(^poll$)|(^sysmsg$)|(^random$)|(^trapstat$)|"
101 	    "(^cryptoadm$)|(^crypto$)|(^pool$)|(^poolctl$)|(^bl$)|(^kmdb$)|"
102 	    "(^sysevent$)|(^kssl$)|(^physmem$)",
103 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name
104 	},
105 	{ "pseudo", "ddi_pseudo",
106 	    "(^ip$)|(^tcp$)|(^udp$)|(^icmp$)|(^sctp$)|"
107 	    "(^ip6$)|(^tcp6$)|(^udp6$)|(^icmp6$)|(^sctp6$)|"
108 	    "(^rts$)|(^arp$)|(^ipsecah$)|(^ipsecesp$)|(^keysock$)|(^spdsock$)|"
109 	    "(^nca$)|(^rds$)|(^sdp$)",
110 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name
111 	},
112 	{ "pseudo", "ddi_pseudo",
113 	    "(^ipf$)|(^ipnat$)|(^ipstate$)|(^ipauth$)|"
114 	    "(^ipsync$)|(^ipscan$)|(^iplookup$)",
115 	    TYPE_EXACT | DRV_RE, ILEVEL_0, minor_name,
116 	},
117 	{ "pseudo", "ddi_pseudo",
118 	    "(^kdmouse$)|(^logi$)|(^rootprop$)|(^msm$)",
119 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_name
120 	},
121 	{ "pseudo", "ddi_pseudo", "tod",
122 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, node_name
123 	},
124 	{ "pseudo", "ddi_pseudo", "envctrl(two)?",
125 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
126 	},
127 	{ "pseudo", "ddi_pseudo", "fcode",
128 	    TYPE_EXACT | DRV_RE, ILEVEL_0, minor_name,
129 	},
130 	{ "power_button", "ddi_power_button", NULL,
131 	    TYPE_EXACT, ILEVEL_0, power_button,
132 	},
133 	{ "FC port", "ddi_ctl:devctl", "fp",
134 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, fc_port
135 	},
136 	{ "printer", "ddi_printer", NULL,
137 	    TYPE_EXACT, ILEVEL_0, printer_create
138 	},
139 	{ "pseudo", "ddi_pseudo", "se",
140 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, se_hdlc_create
141 	},
142 	{ "ppm",  "ddi_ppm", NULL,
143 	    TYPE_EXACT, ILEVEL_0, ppm
144 	},
145 	{ "pseudo", "ddi_pseudo", "gpio_87317",
146 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, gpio
147 	},
148 	{ "pseudo", "ddi_pseudo", "sckmdrv",
149 	    TYPE_EXACT | DRV_RE, ILEVEL_0, kmdrv_create,
150 	},
151 	{ "pseudo", "ddi_pseudo", "oplkmdrv",
152 	    TYPE_EXACT | DRV_RE, ILEVEL_0, kmdrv_create,
153 	},
154 	{ "av", "^ddi_av:(isoch|async)$", NULL,
155 	    TYPE_RE, ILEVEL_0, av_create,
156 	},
157 	{ "pseudo", "ddi_pseudo", "tsalarm",
158 	    TYPE_EXACT | DRV_RE, ILEVEL_0, tsalarm_create,
159 	},
160 	{ "pseudo", "ddi_pseudo", "ntwdt",
161 	    TYPE_EXACT | DRV_RE, ILEVEL_0, ntwdt_create,
162 	},
163 	{ "pseudo", "ddi_pseudo", "daplt",
164 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
165 	},
166 	{ "pseudo", "ddi_pseudo", "zcons",
167 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, zcons_create,
168 	},
169 	{ "pseudo", "ddi_pseudo", CPUID_DRIVER_NAME,
170 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, cpuid,
171 	},
172 	{ "pseudo", "ddi_pseudo", "glvc",
173 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, glvc,
174 	},
175 	{ "pseudo", "ddi_pseudo", "dm2s",
176 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name,
177 	},
178 };
179 
180 DEVFSADM_CREATE_INIT_V0(misc_cbt);
181 
182 static devfsadm_remove_t misc_remove_cbt[] = {
183 	{ "pseudo", "^profile$",
184 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
185 	},
186 	{ "pseudo", "^rsm$",
187 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
188 	},
189 	{ "printer", "^printers/[0-9]+$",
190 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
191 	},
192 	{ "av", "^av/[0-9]+/(async|isoch)$",
193 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
194 	},
195 	{ "pseudo", "^daplt$",
196 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
197 	},
198 	{ "pseudo", "^zcons/" ZONENAME_REGEXP "/(" ZCONS_MASTER_NAME "|"
199 		ZCONS_SLAVE_NAME ")$",
200 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
201 	},
202 	{ "pseudo", "^cpu/self/cpuid$", RM_ALWAYS | RM_PRE | RM_HOT,
203 	    ILEVEL_0, devfsadm_rm_all
204 	},
205 	{ "enclosure", "^es/ses[0-9]+$", RM_POST,
206 		ILEVEL_0, devfsadm_rm_all
207 	}
208 };
209 
210 /* Rules for gpio devices */
211 static devfsadm_enumerate_t gpio_rules[1] =
212 	{"^gpio([0-9]+)$", 1, MATCH_ALL};
213 
214 DEVFSADM_REMOVE_INIT_V0(misc_remove_cbt);
215 
216 /*
217  * Handles minor node type "ddi_display".
218  *
219  * type=ddi_display fbs/\M0 fb\N0
220  */
221 static int
222 display(di_minor_t minor, di_node_t node)
223 {
224 	char l_path[PATH_MAX + 1], contents[PATH_MAX + 1], *buf;
225 	devfsadm_enumerate_t rules[1] = {"^fb([0-9]+)$", 1, MATCH_ALL};
226 	char *mn = di_minor_name(minor);
227 
228 	/* create fbs/\M0 primary link */
229 	(void) strcpy(l_path, "fbs/");
230 	(void) strcat(l_path, mn);
231 	(void) devfsadm_mklink(l_path, node, minor, 0);
232 
233 	/* create fb\N0 which links to fbs/\M0 */
234 	if (devfsadm_enumerate_int(l_path, 0, &buf, rules, 1)) {
235 		return (DEVFSADM_CONTINUE);
236 	}
237 	(void) strcpy(contents, l_path);
238 	(void) strcpy(l_path, "fb");
239 	(void) strcat(l_path, buf);
240 	free(buf);
241 	(void) devfsadm_secondary_link(l_path, contents, 0);
242 	return (DEVFSADM_CONTINUE);
243 }
244 
245 /*
246  * Handles minor node type "ddi_parallel".
247  * type=ddi_parallel;name=mcpp     mcpp\N0
248  */
249 static int
250 parallel(di_minor_t minor, di_node_t node)
251 {
252 	char path[PATH_MAX + 1], *buf;
253 	devfsadm_enumerate_t rules[1] = {"mcpp([0-9]+)$", 1, MATCH_ALL};
254 
255 
256 	if (strcmp(di_node_name(node), "mcpp") != 0) {
257 		return (DEVFSADM_CONTINUE);
258 	}
259 
260 	if (NULL == (buf = di_devfs_path(node))) {
261 		return (DEVFSADM_CONTINUE);
262 	}
263 
264 	(void) snprintf(path, sizeof (path), "%s:%s",
265 	    buf, di_minor_name(minor));
266 
267 	di_devfs_path_free(buf);
268 
269 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
270 		return (DEVFSADM_CONTINUE);
271 	}
272 	(void) snprintf(path, sizeof (path), "mcpp%s", buf);
273 	free(buf);
274 
275 	(void) devfsadm_mklink(path, node, minor, 0);
276 	return (DEVFSADM_CONTINUE);
277 }
278 
279 static int
280 ses_callback(di_minor_t minor, di_node_t node)
281 {
282 	char l_path[PATH_MAX];
283 	char *buf;
284 	char *devfspath;
285 	char p_path[PATH_MAX];
286 	devfsadm_enumerate_t re[] = {"^es$/^ses([0-9]+)$", 1, MATCH_ALL};
287 
288 	/* find devices path -- need to free mem */
289 	if (NULL == (devfspath = di_devfs_path(node))) {
290 		return (DEVFSADM_CONTINUE);
291 	}
292 
293 	(void) snprintf(p_path, sizeof (p_path), "%s:%s", devfspath,
294 	    di_minor_name(minor));
295 
296 
297 	/* find next number to use; buf is an ascii number */
298 	if (devfsadm_enumerate_int(p_path, 0, &buf, re, 1)) {
299 		/* free memory */
300 		di_devfs_path_free(devfspath);
301 		return (DEVFSADM_CONTINUE);
302 	}
303 
304 	(void) snprintf(l_path, sizeof (l_path), "es/ses%s", buf);
305 
306 	(void) devfsadm_mklink(l_path, node, minor, 0);
307 	/* free memory */
308 	free(buf);
309 	di_devfs_path_free(devfspath);
310 	return (DEVFSADM_CONTINUE);
311 
312 }
313 
314 static int
315 node_slash_minor(di_minor_t minor, di_node_t node)
316 {
317 
318 	char path[PATH_MAX + 1];
319 
320 	(void) strcpy(path, di_node_name(node));
321 	(void) strcat(path, "/");
322 	(void) strcat(path, di_minor_name(minor));
323 	(void) devfsadm_mklink(path, node, minor, 0);
324 	return (DEVFSADM_CONTINUE);
325 }
326 
327 static int
328 driver_minor(di_minor_t minor, di_node_t node)
329 {
330 	char path[PATH_MAX + 1];
331 
332 	(void) strcpy(path, di_driver_name(node));
333 	(void) strcat(path, di_minor_name(minor));
334 	(void) devfsadm_mklink(path, node, minor, 0);
335 	return (DEVFSADM_CONTINUE);
336 }
337 
338 /*
339  * Handles links of the form:
340  * type=ddi_pseudo;name=xyz  \D
341  */
342 static int
343 node_name(di_minor_t minor, di_node_t node)
344 {
345 	(void) devfsadm_mklink(di_node_name(node), node, minor, 0);
346 	return (DEVFSADM_CONTINUE);
347 }
348 
349 /*
350  * Handles links of the form:
351  * type=ddi_pseudo;name=xyz  \M0
352  */
353 static int
354 minor_name(di_minor_t minor, di_node_t node)
355 {
356 	char *mn = di_minor_name(minor);
357 
358 	(void) devfsadm_mklink(mn, node, minor, 0);
359 	if (strcmp(mn, "icmp") == 0) {
360 		(void) devfsadm_mklink("rawip", node, minor, 0);
361 	}
362 	if (strcmp(mn, "icmp6") == 0) {
363 		(void) devfsadm_mklink("rawip6", node, minor, 0);
364 	}
365 	if (strcmp(mn, "ipf") == 0) {
366 		(void) devfsadm_mklink("ipl", node, minor, 0);
367 	}
368 	return (DEVFSADM_CONTINUE);
369 }
370 
371 /*
372  * create links at /dev/wifi for wifi minor node
373  */
374 static int
375 wifi_minor_name(di_minor_t minor, di_node_t node)
376 {
377 	char buf[256];
378 	char *mn = di_minor_name(minor);
379 
380 	(void) snprintf(buf, sizeof (buf), "%s%s", "wifi/", mn);
381 	(void) devfsadm_mklink(buf, node, minor, 0);
382 
383 	return (DEVFSADM_CONTINUE);
384 }
385 
386 static int
387 conskbd(di_minor_t minor, di_node_t node)
388 {
389 	(void) devfsadm_mklink("kbd", node, minor, 0);
390 	return (DEVFSADM_CONTINUE);
391 }
392 
393 static int
394 consms(di_minor_t minor, di_node_t node)
395 {
396 	(void) devfsadm_mklink("mouse", node, minor, 0);
397 	return (DEVFSADM_CONTINUE);
398 }
399 
400 static int
401 power_button(di_minor_t minor, di_node_t node)
402 {
403 	(void) devfsadm_mklink("power_button", node, minor, 0);
404 	return (DEVFSADM_CONTINUE);
405 }
406 
407 static int
408 fc_port(di_minor_t minor, di_node_t node)
409 {
410 	devfsadm_enumerate_t rules[1] = {"fc/fp([0-9]+)$", 1, MATCH_ALL};
411 	char *buf, path[PATH_MAX + 1];
412 	char *ptr;
413 
414 	if (NULL == (ptr = di_devfs_path(node))) {
415 		return (DEVFSADM_CONTINUE);
416 	}
417 
418 	(void) strcpy(path, ptr);
419 	(void) strcat(path, ":");
420 	(void) strcat(path, di_minor_name(minor));
421 
422 	di_devfs_path_free(ptr);
423 
424 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1) != 0) {
425 		return (DEVFSADM_CONTINUE);
426 	}
427 
428 	(void) strcpy(path, "fc/fp");
429 	(void) strcat(path, buf);
430 	free(buf);
431 
432 	(void) devfsadm_mklink(path, node, minor, 0);
433 	return (DEVFSADM_CONTINUE);
434 }
435 
436 /*
437  * Handles:
438  *	minor node type "ddi_printer".
439  * 	rules of the form: type=ddi_printer;name=bpp  \M0
440  */
441 static int
442 printer_create(di_minor_t minor, di_node_t node)
443 {
444 	char *mn;
445 	char path[PATH_MAX + 1], *buf;
446 	devfsadm_enumerate_t rules[1] = {"^printers$/^([0-9]+)$", 1, MATCH_ALL};
447 
448 	mn = di_minor_name(minor);
449 
450 	if (strcmp(di_driver_name(node), "bpp") == 0) {
451 		(void) devfsadm_mklink(mn, node, minor, 0);
452 	}
453 
454 	if (NULL == (buf = di_devfs_path(node))) {
455 		return (DEVFSADM_CONTINUE);
456 	}
457 
458 	(void) snprintf(path, sizeof (path), "%s:%s", buf, mn);
459 	di_devfs_path_free(buf);
460 
461 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
462 		return (DEVFSADM_CONTINUE);
463 	}
464 
465 	(void) snprintf(path, sizeof (path), "printers/%s", buf);
466 	free(buf);
467 
468 	(void) devfsadm_mklink(path, node, minor, 0);
469 
470 	return (DEVFSADM_CONTINUE);
471 }
472 
473 /*
474  * Handles links of the form:
475  * type=ddi_pseudo;name=se;minor2=hdlc	se_hdlc\N0
476  * type=ddi_pseudo;name=serial;minor2=hdlc	se_hdlc\N0
477  */
478 static int
479 se_hdlc_create(di_minor_t minor, di_node_t node)
480 {
481 	devfsadm_enumerate_t rules[1] = {"^se_hdlc([0-9]+)$", 1, MATCH_ALL};
482 	char *buf, path[PATH_MAX + 1];
483 	char *ptr;
484 	char *mn;
485 
486 	mn = di_minor_name(minor);
487 
488 	/* minor node should be of the form: "?,hdlc" */
489 	if (strcmp(mn + 1, ",hdlc") != 0) {
490 		return (DEVFSADM_CONTINUE);
491 	}
492 
493 	if (NULL == (ptr = di_devfs_path(node))) {
494 		return (DEVFSADM_CONTINUE);
495 	}
496 
497 	(void) strcpy(path, ptr);
498 	(void) strcat(path, ":");
499 	(void) strcat(path, mn);
500 
501 	di_devfs_path_free(ptr);
502 
503 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1) != 0) {
504 		return (DEVFSADM_CONTINUE);
505 	}
506 
507 	(void) strcpy(path, "se_hdlc");
508 	(void) strcat(path, buf);
509 	free(buf);
510 
511 	(void) devfsadm_mklink(path, node, minor, 0);
512 
513 	return (DEVFSADM_CONTINUE);
514 }
515 
516 static int
517 gpio(di_minor_t minor, di_node_t node)
518 {
519 	char l_path[PATH_MAX], p_path[PATH_MAX], *buf, *devfspath;
520 	char *minor_nm, *drvr_nm;
521 
522 
523 	minor_nm = di_minor_name(minor);
524 	drvr_nm = di_driver_name(node);
525 	if ((minor_nm == NULL) || (drvr_nm == NULL)) {
526 		return (DEVFSADM_CONTINUE);
527 	}
528 
529 	devfspath = di_devfs_path(node);
530 
531 	(void) strcpy(p_path, devfspath);
532 	(void) strcat(p_path, ":");
533 	(void) strcat(p_path, minor_nm);
534 	di_devfs_path_free(devfspath);
535 
536 	/* build the physical path from the components */
537 	if (devfsadm_enumerate_int(p_path, 0, &buf, gpio_rules, 1)) {
538 		return (DEVFSADM_CONTINUE);
539 	}
540 
541 	(void) snprintf(l_path, sizeof (l_path), "%s%s", "gpio", buf);
542 
543 	free(buf);
544 
545 	(void) devfsadm_mklink(l_path, node, minor, 0);
546 
547 	return (DEVFSADM_CONTINUE);
548 }
549 
550 /*
551  * Creates /dev/ppm nodes for Platform Specific PM module
552  */
553 static int
554 ppm(di_minor_t minor, di_node_t node)
555 {
556 	(void) devfsadm_mklink("ppm", node, minor, 0);
557 	return (DEVFSADM_CONTINUE);
558 }
559 
560 /*
561  * Handles:
562  *	/dev/av/[0-9]+/(async|isoch)
563  */
564 static int
565 av_create(di_minor_t minor, di_node_t node)
566 {
567 	devfsadm_enumerate_t rules[1] = {"^av$/^([0-9]+)$", 1, MATCH_ADDR};
568 	char	*minor_str;
569 	char	path[PATH_MAX + 1];
570 	char	*buf;
571 
572 	if ((buf = di_devfs_path(node)) == NULL) {
573 		return (DEVFSADM_CONTINUE);
574 	}
575 
576 	minor_str = di_minor_name(minor);
577 	(void) snprintf(path, sizeof (path), "%s:%s", buf, minor_str);
578 	di_devfs_path_free(buf);
579 
580 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
581 		return (DEVFSADM_CONTINUE);
582 	}
583 
584 	(void) snprintf(path, sizeof (path), "av/%s/%s", buf, minor_str);
585 	free(buf);
586 
587 	(void) devfsadm_mklink(path, node, minor, 0);
588 
589 	return (DEVFSADM_CONTINUE);
590 }
591 
592 /*
593  * Creates /dev/lom and /dev/tsalarm:ctl for tsalarm node
594  */
595 static int
596 tsalarm_create(di_minor_t minor, di_node_t node)
597 {
598 	char buf[PATH_MAX + 1];
599 	char *mn = di_minor_name(minor);
600 
601 	(void) snprintf(buf, sizeof (buf), "%s%s", di_node_name(node), ":ctl");
602 
603 	(void) devfsadm_mklink(mn, node, minor, 0);
604 	(void) devfsadm_mklink(buf, node, minor, 0);
605 
606 	return (DEVFSADM_CONTINUE);
607 }
608 
609 /*
610  * Creates /dev/ntwdt for ntwdt node
611  */
612 static int
613 ntwdt_create(di_minor_t minor, di_node_t node)
614 {
615 	(void) devfsadm_mklink("ntwdt", node, minor, 0);
616 	return (DEVFSADM_CONTINUE);
617 }
618 
619 static int
620 zcons_create(di_minor_t minor, di_node_t node)
621 {
622 	char	*minor_str;
623 	char	*zonename;
624 	char	path[MAXPATHLEN];
625 
626 	minor_str = di_minor_name(minor);
627 
628 	if (di_prop_lookup_strings(DDI_DEV_T_ANY, node, "zonename",
629 	    &zonename) == -1) {
630 		return (DEVFSADM_CONTINUE);
631 	}
632 
633 	(void) snprintf(path, sizeof (path), "zcons/%s/%s", zonename,
634 	    minor_str);
635 	(void) devfsadm_mklink(path, node, minor, 0);
636 
637 	return (DEVFSADM_CONTINUE);
638 }
639 
640 /*
641  *	/dev/cpu/self/cpuid 	->	/devices/pseudo/cpuid@0:self
642  */
643 static int
644 cpuid(di_minor_t minor, di_node_t node)
645 {
646 	(void) devfsadm_mklink(CPUID_SELF_NAME, node, minor, 0);
647 	return (DEVFSADM_CONTINUE);
648 }
649 
650 /*
651  * For device
652  *      /dev/spfma -> /devices/virtual-devices/fma@5:glvc
653  */
654 static int
655 glvc(di_minor_t minor, di_node_t node)
656 {
657 	char node_name[MAXNAMELEN + 1];
658 
659 	(void) strcpy(node_name, di_node_name(node));
660 
661 	if (strncmp(node_name, "fma", 3) == 0) {
662 		/* Only one fma channel */
663 		(void) devfsadm_mklink("spfma", node, minor, 0);
664 	}
665 	return (DEVFSADM_CONTINUE);
666 }
667 
668 /*
669  * Handles links of the form:
670  * type=ddi_pseudo;name=sckmdrv		kmdrv\M0
671  * type=ddi_pseudo;name=oplkmdrv	kmdrv\M0
672  */
673 static int
674 kmdrv_create(di_minor_t minor, di_node_t node)
675 {
676 
677 	(void) devfsadm_mklink("kmdrv", node, minor, 0);
678 	return (DEVFSADM_CONTINUE);
679 }
680