xref: /titanic_52/usr/src/cmd/devfsadm/misc_link.c (revision 09b1eac246a4e627fcbd1ce5bf8005746cbe45ea) 
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 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <regex.h>
27 #include <devfsadm.h>
28 #include <stdio.h>
29 #include <strings.h>
30 #include <stdlib.h>
31 #include <limits.h>
32 #include <sys/zone.h>
33 #include <sys/zcons.h>
34 #include <sys/cpuid_drv.h>
35 
36 static int display(di_minor_t minor, di_node_t node);
37 static int parallel(di_minor_t minor, di_node_t node);
38 static int node_slash_minor(di_minor_t minor, di_node_t node);
39 static int driver_minor(di_minor_t minor, di_node_t node);
40 static int node_name(di_minor_t minor, di_node_t node);
41 static int minor_name(di_minor_t minor, di_node_t node);
42 static int wifi_minor_name(di_minor_t minor, di_node_t node);
43 static int conskbd(di_minor_t minor, di_node_t node);
44 static int consms(di_minor_t minor, di_node_t node);
45 static int power_button(di_minor_t minor, di_node_t node);
46 static int fc_port(di_minor_t minor, di_node_t node);
47 static int printer_create(di_minor_t minor, di_node_t node);
48 static int se_hdlc_create(di_minor_t minor, di_node_t node);
49 static int ppm(di_minor_t minor, di_node_t node);
50 static int gpio(di_minor_t minor, di_node_t node);
51 static int av_create(di_minor_t minor, di_node_t node);
52 static int tsalarm_create(di_minor_t minor, di_node_t node);
53 static int ntwdt_create(di_minor_t minor, di_node_t node);
54 static int zcons_create(di_minor_t minor, di_node_t node);
55 static int cpuid(di_minor_t minor, di_node_t node);
56 static int glvc(di_minor_t minor, di_node_t node);
57 static int ses_callback(di_minor_t minor, di_node_t node);
58 static int kmdrv_create(di_minor_t minor, di_node_t node);
59 
60 static devfsadm_create_t misc_cbt[] = {
61 	{ "pseudo", "ddi_pseudo", "(^sad$)",
62 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_slash_minor
63 	},
64 	{ "pseudo", "ddi_pseudo", "zsh",
65 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, driver_minor
66 	},
67 	{ "network", "ddi_network", NULL,
68 	    TYPE_EXACT, ILEVEL_0, minor_name
69 	},
70 	{ "wifi", "ddi_network:wifi", NULL,
71 	    TYPE_EXACT, ILEVEL_0, wifi_minor_name
72 	},
73 	{ "display", "ddi_display", NULL,
74 	    TYPE_EXACT, ILEVEL_0, display
75 	},
76 	{ "parallel", "ddi_parallel", NULL,
77 	    TYPE_EXACT, ILEVEL_0, parallel
78 	},
79 	{ "enclosure", DDI_NT_SCSI_ENCLOSURE, NULL,
80 	    TYPE_EXACT, ILEVEL_0, ses_callback
81 	},
82 	{ "pseudo", "ddi_pseudo", "(^winlock$)|(^pm$)",
83 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_name
84 	},
85 	{ "pseudo", "ddi_pseudo", "conskbd",
86 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, conskbd
87 	},
88 	{ "pseudo", "ddi_pseudo", "consms",
89 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, consms
90 	},
91 	{ "pseudo", "ddi_pseudo", "rsm",
92 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
93 	},
94 	{ "pseudo", "ddi_pseudo",
95 	    "(^lockstat$)|(^SUNW,rtvc$)|(^vol$)|(^log$)|(^sy$)|"
96 	    "(^ksyms$)|(^clone$)|(^tl$)|(^tnf$)|(^kstat$)|(^mdesc$)|(^eeprom$)|"
97 	    "(^ptsl$)|(^mm$)|(^wc$)|(^dump$)|(^cn$)|(^svvslo$)|(^ptm$)|"
98 	    "(^ptc$)|(^openeepr$)|(^poll$)|(^sysmsg$)|(^random$)|(^trapstat$)|"
99 	    "(^cryptoadm$)|(^crypto$)|(^pool$)|(^poolctl$)|(^bl$)|(^kmdb$)|"
100 	    "(^sysevent$)|(^kssl$)|(^physmem$)",
101 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name
102 	},
103 	{ "pseudo", "ddi_pseudo",
104 	    "(^ip$)|(^tcp$)|(^udp$)|(^icmp$)|(^sctp$)|"
105 	    "(^ip6$)|(^tcp6$)|(^udp6$)|(^icmp6$)|(^sctp6$)|"
106 	    "(^rts$)|(^arp$)|(^ipsecah$)|(^ipsecesp$)|(^keysock$)|(^spdsock$)|"
107 	    "(^nca$)|(^rds$)|(^sdp$)|(^ipnet$)|(^dlpistub$)",
108 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name
109 	},
110 	{ "pseudo", "ddi_pseudo",
111 	    "(^ipf$)|(^ipnat$)|(^ipstate$)|(^ipauth$)|"
112 	    "(^ipsync$)|(^ipscan$)|(^iplookup$)",
113 	    TYPE_EXACT | DRV_RE, ILEVEL_0, minor_name,
114 	},
115 	{ "pseudo", "ddi_pseudo", "dld",
116 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, node_name
117 	},
118 	{ "pseudo", "ddi_pseudo",
119 	    "(^kdmouse$)|(^rootprop$)",
120 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_name
121 	},
122 	{ "pseudo", "ddi_pseudo", "tod",
123 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, node_name
124 	},
125 	{ "pseudo", "ddi_pseudo", "envctrl(two)?",
126 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
127 	},
128 	{ "pseudo", "ddi_pseudo", "fcode",
129 	    TYPE_EXACT | DRV_RE, ILEVEL_0, minor_name,
130 	},
131 	{ "power_button", "ddi_power_button", NULL,
132 	    TYPE_EXACT, ILEVEL_0, power_button,
133 	},
134 	{ "FC port", "ddi_ctl:devctl", "fp",
135 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, fc_port
136 	},
137 	{ "printer", "ddi_printer", NULL,
138 	    TYPE_EXACT, ILEVEL_0, printer_create
139 	},
140 	{ "pseudo", "ddi_pseudo", "se",
141 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, se_hdlc_create
142 	},
143 	{ "ppm",  "ddi_ppm", NULL,
144 	    TYPE_EXACT, ILEVEL_0, ppm
145 	},
146 	{ "pseudo", "ddi_pseudo", "gpio_87317",
147 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, gpio
148 	},
149 	{ "pseudo", "ddi_pseudo", "sckmdrv",
150 	    TYPE_EXACT | DRV_RE, ILEVEL_0, kmdrv_create,
151 	},
152 	{ "pseudo", "ddi_pseudo", "oplkmdrv",
153 	    TYPE_EXACT | DRV_RE, ILEVEL_0, kmdrv_create,
154 	},
155 	{ "av", "^ddi_av:(isoch|async)$", NULL,
156 	    TYPE_RE, ILEVEL_0, av_create,
157 	},
158 	{ "pseudo", "ddi_pseudo", "tsalarm",
159 	    TYPE_EXACT | DRV_RE, ILEVEL_0, tsalarm_create,
160 	},
161 	{ "pseudo", "ddi_pseudo", "ntwdt",
162 	    TYPE_EXACT | DRV_RE, ILEVEL_0, ntwdt_create,
163 	},
164 	{ "pseudo", "ddi_pseudo", "daplt",
165 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
166 	},
167 	{ "pseudo", "ddi_pseudo", "zcons",
168 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, zcons_create,
169 	},
170 	{ "pseudo", "ddi_pseudo", CPUID_DRIVER_NAME,
171 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, cpuid,
172 	},
173 	{ "pseudo", "ddi_pseudo", "glvc",
174 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, glvc,
175 	},
176 	{ "pseudo", "ddi_pseudo", "dm2s",
177 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name,
178 	},
179 	{ "pseudo", "ddi_pseudo", "nsmb",
180 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
181 	},
182 	{ "pseudo", "ddi_pseudo", "mem_cache",
183 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
184 	},
185 	{ "pseudo", "ddi_pseudo", "fm",
186 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
187 	}
188 };
189 
190 DEVFSADM_CREATE_INIT_V0(misc_cbt);
191 
192 static devfsadm_remove_t misc_remove_cbt[] = {
193 	{ "pseudo", "^profile$",
194 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
195 	},
196 	{ "pseudo", "^rsm$",
197 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
198 	},
199 	{ "printer", "^printers/[0-9]+$",
200 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
201 	},
202 	{ "av", "^av/[0-9]+/(async|isoch)$",
203 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
204 	},
205 	{ "pseudo", "^daplt$",
206 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
207 	},
208 	{ "pseudo", "^zcons/" ZONENAME_REGEXP "/(" ZCONS_MASTER_NAME "|"
209 		ZCONS_SLAVE_NAME ")$",
210 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
211 	},
212 	{ "pseudo", "^" CPUID_SELF_NAME "$", RM_ALWAYS | RM_PRE | RM_HOT,
213 	    ILEVEL_0, devfsadm_rm_all
214 	},
215 	{ "enclosure", "^es/ses[0-9]+$", RM_POST,
216 		ILEVEL_0, devfsadm_rm_all
217 	},
218 	{ "pseudo", "^pfil$",
219 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
220 	}
221 };
222 
223 /* Rules for gpio devices */
224 static devfsadm_enumerate_t gpio_rules[1] =
225 	{"^gpio([0-9]+)$", 1, MATCH_ALL};
226 
227 DEVFSADM_REMOVE_INIT_V0(misc_remove_cbt);
228 
229 /*
230  * Handles minor node type "ddi_display".
231  *
232  * type=ddi_display fbs/\M0 fb\N0
233  */
234 static int
235 display(di_minor_t minor, di_node_t node)
236 {
237 	char l_path[PATH_MAX + 1], contents[PATH_MAX + 1], *buf;
238 	devfsadm_enumerate_t rules[1] = {"^fb([0-9]+)$", 1, MATCH_ALL};
239 	char *mn = di_minor_name(minor);
240 
241 	/* create fbs/\M0 primary link */
242 	(void) strcpy(l_path, "fbs/");
243 	(void) strcat(l_path, mn);
244 	(void) devfsadm_mklink(l_path, node, minor, 0);
245 
246 	/* create fb\N0 which links to fbs/\M0 */
247 	if (devfsadm_enumerate_int(l_path, 0, &buf, rules, 1)) {
248 		return (DEVFSADM_CONTINUE);
249 	}
250 	(void) strcpy(contents, l_path);
251 	(void) strcpy(l_path, "fb");
252 	(void) strcat(l_path, buf);
253 	free(buf);
254 	(void) devfsadm_secondary_link(l_path, contents, 0);
255 	return (DEVFSADM_CONTINUE);
256 }
257 
258 /*
259  * Handles minor node type "ddi_parallel".
260  * type=ddi_parallel;name=mcpp     mcpp\N0
261  */
262 static int
263 parallel(di_minor_t minor, di_node_t node)
264 {
265 	char path[PATH_MAX + 1], *buf;
266 	devfsadm_enumerate_t rules[1] = {"mcpp([0-9]+)$", 1, MATCH_ALL};
267 
268 
269 	if (strcmp(di_node_name(node), "mcpp") != 0) {
270 		return (DEVFSADM_CONTINUE);
271 	}
272 
273 	if (NULL == (buf = di_devfs_path(node))) {
274 		return (DEVFSADM_CONTINUE);
275 	}
276 
277 	(void) snprintf(path, sizeof (path), "%s:%s",
278 	    buf, di_minor_name(minor));
279 
280 	di_devfs_path_free(buf);
281 
282 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
283 		return (DEVFSADM_CONTINUE);
284 	}
285 	(void) snprintf(path, sizeof (path), "mcpp%s", buf);
286 	free(buf);
287 
288 	(void) devfsadm_mklink(path, node, minor, 0);
289 	return (DEVFSADM_CONTINUE);
290 }
291 
292 static int
293 ses_callback(di_minor_t minor, di_node_t node)
294 {
295 	char l_path[PATH_MAX];
296 	char *buf;
297 	char *devfspath;
298 	char p_path[PATH_MAX];
299 	devfsadm_enumerate_t re[] = {"^es$/^ses([0-9]+)$", 1, MATCH_ALL};
300 
301 	/* find devices path -- need to free mem */
302 	if (NULL == (devfspath = di_devfs_path(node))) {
303 		return (DEVFSADM_CONTINUE);
304 	}
305 
306 	(void) snprintf(p_path, sizeof (p_path), "%s:%s", devfspath,
307 	    di_minor_name(minor));
308 
309 
310 	/* find next number to use; buf is an ascii number */
311 	if (devfsadm_enumerate_int(p_path, 0, &buf, re, 1)) {
312 		/* free memory */
313 		di_devfs_path_free(devfspath);
314 		return (DEVFSADM_CONTINUE);
315 	}
316 
317 	(void) snprintf(l_path, sizeof (l_path), "es/ses%s", buf);
318 
319 	(void) devfsadm_mklink(l_path, node, minor, 0);
320 	/* free memory */
321 	free(buf);
322 	di_devfs_path_free(devfspath);
323 	return (DEVFSADM_CONTINUE);
324 
325 }
326 
327 static int
328 node_slash_minor(di_minor_t minor, di_node_t node)
329 {
330 
331 	char path[PATH_MAX + 1];
332 
333 	(void) strcpy(path, di_node_name(node));
334 	(void) strcat(path, "/");
335 	(void) strcat(path, di_minor_name(minor));
336 	(void) devfsadm_mklink(path, node, minor, 0);
337 	return (DEVFSADM_CONTINUE);
338 }
339 
340 static int
341 driver_minor(di_minor_t minor, di_node_t node)
342 {
343 	char path[PATH_MAX + 1];
344 
345 	(void) strcpy(path, di_driver_name(node));
346 	(void) strcat(path, di_minor_name(minor));
347 	(void) devfsadm_mklink(path, node, minor, 0);
348 	return (DEVFSADM_CONTINUE);
349 }
350 
351 /*
352  * Handles links of the form:
353  * type=ddi_pseudo;name=xyz  \D
354  */
355 static int
356 node_name(di_minor_t minor, di_node_t node)
357 {
358 	(void) devfsadm_mklink(di_node_name(node), node, minor, 0);
359 	return (DEVFSADM_CONTINUE);
360 }
361 
362 /*
363  * Handles links of the form:
364  * type=ddi_pseudo;name=xyz  \M0
365  */
366 static int
367 minor_name(di_minor_t minor, di_node_t node)
368 {
369 	char *mn = di_minor_name(minor);
370 
371 	(void) devfsadm_mklink(mn, node, minor, 0);
372 	if (strcmp(mn, "icmp") == 0) {
373 		(void) devfsadm_mklink("rawip", node, minor, 0);
374 	}
375 	if (strcmp(mn, "icmp6") == 0) {
376 		(void) devfsadm_mklink("rawip6", node, minor, 0);
377 	}
378 	if (strcmp(mn, "ipf") == 0) {
379 		(void) devfsadm_mklink("ipl", node, minor, 0);
380 	}
381 	return (DEVFSADM_CONTINUE);
382 }
383 
384 /*
385  * create links at /dev/wifi for wifi minor node
386  */
387 static int
388 wifi_minor_name(di_minor_t minor, di_node_t node)
389 {
390 	char buf[256];
391 	char *mn = di_minor_name(minor);
392 
393 	(void) snprintf(buf, sizeof (buf), "%s%s", "wifi/", mn);
394 	(void) devfsadm_mklink(buf, node, minor, 0);
395 
396 	return (DEVFSADM_CONTINUE);
397 }
398 
399 static int
400 conskbd(di_minor_t minor, di_node_t node)
401 {
402 	(void) devfsadm_mklink("kbd", node, minor, 0);
403 	return (DEVFSADM_CONTINUE);
404 }
405 
406 static int
407 consms(di_minor_t minor, di_node_t node)
408 {
409 	(void) devfsadm_mklink("mouse", node, minor, 0);
410 	return (DEVFSADM_CONTINUE);
411 }
412 
413 static int
414 power_button(di_minor_t minor, di_node_t node)
415 {
416 	(void) devfsadm_mklink("power_button", node, minor, 0);
417 	return (DEVFSADM_CONTINUE);
418 }
419 
420 static int
421 fc_port(di_minor_t minor, di_node_t node)
422 {
423 	devfsadm_enumerate_t rules[1] = {"fc/fp([0-9]+)$", 1, MATCH_ALL};
424 	char *buf, path[PATH_MAX + 1];
425 	char *ptr;
426 
427 	if (NULL == (ptr = di_devfs_path(node))) {
428 		return (DEVFSADM_CONTINUE);
429 	}
430 
431 	(void) strcpy(path, ptr);
432 	(void) strcat(path, ":");
433 	(void) strcat(path, di_minor_name(minor));
434 
435 	di_devfs_path_free(ptr);
436 
437 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1) != 0) {
438 		return (DEVFSADM_CONTINUE);
439 	}
440 
441 	(void) strcpy(path, "fc/fp");
442 	(void) strcat(path, buf);
443 	free(buf);
444 
445 	(void) devfsadm_mklink(path, node, minor, 0);
446 	return (DEVFSADM_CONTINUE);
447 }
448 
449 /*
450  * Handles:
451  *	minor node type "ddi_printer".
452  * 	rules of the form: type=ddi_printer;name=bpp  \M0
453  */
454 static int
455 printer_create(di_minor_t minor, di_node_t node)
456 {
457 	char *mn;
458 	char path[PATH_MAX + 1], *buf;
459 	devfsadm_enumerate_t rules[1] = {"^printers$/^([0-9]+)$", 1, MATCH_ALL};
460 
461 	mn = di_minor_name(minor);
462 
463 	if (strcmp(di_driver_name(node), "bpp") == 0) {
464 		(void) devfsadm_mklink(mn, node, minor, 0);
465 	}
466 
467 	if (NULL == (buf = di_devfs_path(node))) {
468 		return (DEVFSADM_CONTINUE);
469 	}
470 
471 	(void) snprintf(path, sizeof (path), "%s:%s", buf, mn);
472 	di_devfs_path_free(buf);
473 
474 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
475 		return (DEVFSADM_CONTINUE);
476 	}
477 
478 	(void) snprintf(path, sizeof (path), "printers/%s", buf);
479 	free(buf);
480 
481 	(void) devfsadm_mklink(path, node, minor, 0);
482 
483 	return (DEVFSADM_CONTINUE);
484 }
485 
486 /*
487  * Handles links of the form:
488  * type=ddi_pseudo;name=se;minor2=hdlc	se_hdlc\N0
489  * type=ddi_pseudo;name=serial;minor2=hdlc	se_hdlc\N0
490  */
491 static int
492 se_hdlc_create(di_minor_t minor, di_node_t node)
493 {
494 	devfsadm_enumerate_t rules[1] = {"^se_hdlc([0-9]+)$", 1, MATCH_ALL};
495 	char *buf, path[PATH_MAX + 1];
496 	char *ptr;
497 	char *mn;
498 
499 	mn = di_minor_name(minor);
500 
501 	/* minor node should be of the form: "?,hdlc" */
502 	if (strcmp(mn + 1, ",hdlc") != 0) {
503 		return (DEVFSADM_CONTINUE);
504 	}
505 
506 	if (NULL == (ptr = di_devfs_path(node))) {
507 		return (DEVFSADM_CONTINUE);
508 	}
509 
510 	(void) strcpy(path, ptr);
511 	(void) strcat(path, ":");
512 	(void) strcat(path, mn);
513 
514 	di_devfs_path_free(ptr);
515 
516 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1) != 0) {
517 		return (DEVFSADM_CONTINUE);
518 	}
519 
520 	(void) strcpy(path, "se_hdlc");
521 	(void) strcat(path, buf);
522 	free(buf);
523 
524 	(void) devfsadm_mklink(path, node, minor, 0);
525 
526 	return (DEVFSADM_CONTINUE);
527 }
528 
529 static int
530 gpio(di_minor_t minor, di_node_t node)
531 {
532 	char l_path[PATH_MAX], p_path[PATH_MAX], *buf, *devfspath;
533 	char *minor_nm, *drvr_nm;
534 
535 
536 	minor_nm = di_minor_name(minor);
537 	drvr_nm = di_driver_name(node);
538 	if ((minor_nm == NULL) || (drvr_nm == NULL)) {
539 		return (DEVFSADM_CONTINUE);
540 	}
541 
542 	devfspath = di_devfs_path(node);
543 
544 	(void) strcpy(p_path, devfspath);
545 	(void) strcat(p_path, ":");
546 	(void) strcat(p_path, minor_nm);
547 	di_devfs_path_free(devfspath);
548 
549 	/* build the physical path from the components */
550 	if (devfsadm_enumerate_int(p_path, 0, &buf, gpio_rules, 1)) {
551 		return (DEVFSADM_CONTINUE);
552 	}
553 
554 	(void) snprintf(l_path, sizeof (l_path), "%s%s", "gpio", buf);
555 
556 	free(buf);
557 
558 	(void) devfsadm_mklink(l_path, node, minor, 0);
559 
560 	return (DEVFSADM_CONTINUE);
561 }
562 
563 /*
564  * Creates /dev/ppm nodes for Platform Specific PM module
565  */
566 static int
567 ppm(di_minor_t minor, di_node_t node)
568 {
569 	(void) devfsadm_mklink("ppm", node, minor, 0);
570 	return (DEVFSADM_CONTINUE);
571 }
572 
573 /*
574  * Handles:
575  *	/dev/av/[0-9]+/(async|isoch)
576  */
577 static int
578 av_create(di_minor_t minor, di_node_t node)
579 {
580 	devfsadm_enumerate_t rules[1] = {"^av$/^([0-9]+)$", 1, MATCH_ADDR};
581 	char	*minor_str;
582 	char	path[PATH_MAX + 1];
583 	char	*buf;
584 
585 	if ((buf = di_devfs_path(node)) == NULL) {
586 		return (DEVFSADM_CONTINUE);
587 	}
588 
589 	minor_str = di_minor_name(minor);
590 	(void) snprintf(path, sizeof (path), "%s:%s", buf, minor_str);
591 	di_devfs_path_free(buf);
592 
593 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
594 		return (DEVFSADM_CONTINUE);
595 	}
596 
597 	(void) snprintf(path, sizeof (path), "av/%s/%s", buf, minor_str);
598 	free(buf);
599 
600 	(void) devfsadm_mklink(path, node, minor, 0);
601 
602 	return (DEVFSADM_CONTINUE);
603 }
604 
605 /*
606  * Creates /dev/lom and /dev/tsalarm:ctl for tsalarm node
607  */
608 static int
609 tsalarm_create(di_minor_t minor, di_node_t node)
610 {
611 	char buf[PATH_MAX + 1];
612 	char *mn = di_minor_name(minor);
613 
614 	(void) snprintf(buf, sizeof (buf), "%s%s", di_node_name(node), ":ctl");
615 
616 	(void) devfsadm_mklink(mn, node, minor, 0);
617 	(void) devfsadm_mklink(buf, node, minor, 0);
618 
619 	return (DEVFSADM_CONTINUE);
620 }
621 
622 /*
623  * Creates /dev/ntwdt for ntwdt node
624  */
625 static int
626 ntwdt_create(di_minor_t minor, di_node_t node)
627 {
628 	(void) devfsadm_mklink("ntwdt", node, minor, 0);
629 	return (DEVFSADM_CONTINUE);
630 }
631 
632 static int
633 zcons_create(di_minor_t minor, di_node_t node)
634 {
635 	char	*minor_str;
636 	char	*zonename;
637 	char	path[MAXPATHLEN];
638 
639 	minor_str = di_minor_name(minor);
640 
641 	if (di_prop_lookup_strings(DDI_DEV_T_ANY, node, "zonename",
642 	    &zonename) == -1) {
643 		return (DEVFSADM_CONTINUE);
644 	}
645 
646 	(void) snprintf(path, sizeof (path), "zcons/%s/%s", zonename,
647 	    minor_str);
648 	(void) devfsadm_mklink(path, node, minor, 0);
649 
650 	return (DEVFSADM_CONTINUE);
651 }
652 
653 /*
654  *	/dev/cpu/self/cpuid 	->	/devices/pseudo/cpuid@0:self
655  */
656 static int
657 cpuid(di_minor_t minor, di_node_t node)
658 {
659 	(void) devfsadm_mklink(CPUID_SELF_NAME, node, minor, 0);
660 	return (DEVFSADM_CONTINUE);
661 }
662 
663 /*
664  * For device
665  *      /dev/spfma -> /devices/virtual-devices/fma@5:glvc
666  */
667 static int
668 glvc(di_minor_t minor, di_node_t node)
669 {
670 	char node_name[MAXNAMELEN + 1];
671 
672 	(void) strcpy(node_name, di_node_name(node));
673 
674 	if (strncmp(node_name, "fma", 3) == 0) {
675 		/* Only one fma channel */
676 		(void) devfsadm_mklink("spfma", node, minor, 0);
677 	}
678 	return (DEVFSADM_CONTINUE);
679 }
680 
681 /*
682  * Handles links of the form:
683  * type=ddi_pseudo;name=sckmdrv		kmdrv\M0
684  * type=ddi_pseudo;name=oplkmdrv	kmdrv\M0
685  */
686 static int
687 kmdrv_create(di_minor_t minor, di_node_t node)
688 {
689 
690 	(void) devfsadm_mklink("kmdrv", node, minor, 0);
691 	return (DEVFSADM_CONTINUE);
692 }
693