xref: /illumos-gate/usr/src/cmd/devfsadm/misc_link.c (revision 9a686fbc186e8e2a64e9a5094d44c7d6fa0ea167)
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 (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
24  * Copyright (c) 2015, Joyent, Inc. All rights reserved.
25  */
26 
27 #include <regex.h>
28 #include <devfsadm.h>
29 #include <stdio.h>
30 #include <strings.h>
31 #include <stdlib.h>
32 #include <limits.h>
33 #include <sys/zone.h>
34 #include <sys/zcons.h>
35 #include <sys/cpuid_drv.h>
36 
37 static int display(di_minor_t minor, di_node_t node);
38 static int parallel(di_minor_t minor, di_node_t node);
39 static int node_slash_minor(di_minor_t minor, di_node_t node);
40 static int driver_minor(di_minor_t minor, di_node_t node);
41 static int node_name(di_minor_t minor, di_node_t node);
42 static int minor_name(di_minor_t minor, di_node_t node);
43 static int wifi_minor_name(di_minor_t minor, di_node_t node);
44 static int conskbd(di_minor_t minor, di_node_t node);
45 static int consms(di_minor_t minor, di_node_t node);
46 static int power_button(di_minor_t minor, di_node_t node);
47 static int fc_port(di_minor_t minor, di_node_t node);
48 static int printer_create(di_minor_t minor, di_node_t node);
49 static int se_hdlc_create(di_minor_t minor, di_node_t node);
50 static int ppm(di_minor_t minor, di_node_t node);
51 static int gpio(di_minor_t minor, di_node_t node);
52 static int av_create(di_minor_t minor, di_node_t node);
53 static int tsalarm_create(di_minor_t minor, di_node_t node);
54 static int ntwdt_create(di_minor_t minor, di_node_t node);
55 static int zcons_create(di_minor_t minor, di_node_t node);
56 static int cpuid(di_minor_t minor, di_node_t node);
57 static int glvc(di_minor_t minor, di_node_t node);
58 static int ses_callback(di_minor_t minor, di_node_t node);
59 static int kmdrv_create(di_minor_t minor, di_node_t node);
60 
61 static devfsadm_create_t misc_cbt[] = {
62 	{ "pseudo", "ddi_pseudo", "(^sad$)",
63 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_slash_minor
64 	},
65 	{ "pseudo", "ddi_pseudo", "zsh",
66 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, driver_minor
67 	},
68 	{ "network", "ddi_network", NULL,
69 	    TYPE_EXACT, ILEVEL_0, minor_name
70 	},
71 	{ "wifi", "ddi_network:wifi", NULL,
72 	    TYPE_EXACT, ILEVEL_0, wifi_minor_name
73 	},
74 	{ "display", "ddi_display", NULL,
75 	    TYPE_EXACT, ILEVEL_0, display
76 	},
77 	{ "parallel", "ddi_parallel", NULL,
78 	    TYPE_EXACT, ILEVEL_0, parallel
79 	},
80 	{ "enclosure", DDI_NT_SCSI_ENCLOSURE, NULL,
81 	    TYPE_EXACT, ILEVEL_0, ses_callback
82 	},
83 	{ "pseudo", "ddi_pseudo", "(^winlock$)|(^pm$)",
84 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_name
85 	},
86 	{ "pseudo", "ddi_pseudo", "conskbd",
87 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, conskbd
88 	},
89 	{ "pseudo", "ddi_pseudo", "consms",
90 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, consms
91 	},
92 	{ "pseudo", "ddi_pseudo", "eventfd",
93 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
94 	},
95 	{ "pseudo", "ddi_pseudo", "rsm",
96 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
97 	},
98 	{ "pseudo", "ddi_pseudo",
99 	    "(^lockstat$)|(^SUNW,rtvc$)|(^vol$)|(^log$)|(^sy$)|"
100 	    "(^ksyms$)|(^clone$)|(^tl$)|(^tnf$)|(^kstat$)|(^mdesc$)|(^eeprom$)|"
101 	    "(^ptsl$)|(^mm$)|(^wc$)|(^dump$)|(^cn$)|(^svvslo$)|(^ptm$)|"
102 	    "(^ptc$)|(^openeepr$)|(^poll$)|(^sysmsg$)|(^random$)|(^trapstat$)|"
103 	    "(^cryptoadm$)|(^crypto$)|(^pool$)|(^poolctl$)|(^bl$)|(^kmdb$)|"
104 	    "(^sysevent$)|(^kssl$)|(^physmem$)",
105 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name
106 	},
107 	{ "pseudo", "ddi_pseudo",
108 	    "(^ip$)|(^tcp$)|(^udp$)|(^icmp$)|"
109 	    "(^ip6$)|(^tcp6$)|(^udp6$)|(^icmp6$)|"
110 	    "(^rts$)|(^arp$)|(^ipsecah$)|(^ipsecesp$)|(^keysock$)|(^spdsock$)|"
111 	    "(^nca$)|(^rds$)|(^sdp$)|(^ipnet$)|(^dlpistub$)|(^bpf$)",
112 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name
113 	},
114 	{ "pseudo", "ddi_pseudo", "ipd",
115 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
116 	},
117 	{ "pseudo", "ddi_pseudo",
118 	    "(^ipf$)|(^ipnat$)|(^ipstate$)|(^ipauth$)|"
119 	    "(^ipsync$)|(^ipscan$)|(^iplookup$)",
120 	    TYPE_EXACT | DRV_RE, ILEVEL_0, minor_name,
121 	},
122 	{ "pseudo", "ddi_pseudo", "dld",
123 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, node_name
124 	},
125 	{ "pseudo", "ddi_pseudo",
126 	    "(^kdmouse$)|(^rootprop$)",
127 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_name
128 	},
129 	{ "pseudo", "ddi_pseudo", "timerfd",
130 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
131 	},
132 	{ "pseudo", "ddi_pseudo", "tod",
133 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, node_name
134 	},
135 	{ "pseudo", "ddi_pseudo", "envctrl(two)?",
136 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
137 	},
138 	{ "pseudo", "ddi_pseudo", "fcode",
139 	    TYPE_EXACT | DRV_RE, ILEVEL_0, minor_name,
140 	},
141 	{ "power_button", "ddi_power_button", NULL,
142 	    TYPE_EXACT, ILEVEL_0, power_button,
143 	},
144 	{ "FC port", "ddi_ctl:devctl", "fp",
145 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, fc_port
146 	},
147 	{ "printer", "ddi_printer", NULL,
148 	    TYPE_EXACT, ILEVEL_0, printer_create
149 	},
150 	{ "pseudo", "ddi_pseudo", "se",
151 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, se_hdlc_create
152 	},
153 	{ "ppm",  "ddi_ppm", NULL,
154 	    TYPE_EXACT, ILEVEL_0, ppm
155 	},
156 	{ "pseudo", "ddi_pseudo", "gpio_87317",
157 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, gpio
158 	},
159 	{ "pseudo", "ddi_pseudo", "sckmdrv",
160 	    TYPE_EXACT | DRV_RE, ILEVEL_0, kmdrv_create,
161 	},
162 	{ "pseudo", "ddi_pseudo", "oplkmdrv",
163 	    TYPE_EXACT | DRV_RE, ILEVEL_0, kmdrv_create,
164 	},
165 	{ "av", "^ddi_av:(isoch|async)$", NULL,
166 	    TYPE_RE, ILEVEL_0, av_create,
167 	},
168 	{ "pseudo", "ddi_pseudo", "tsalarm",
169 	    TYPE_EXACT | DRV_RE, ILEVEL_0, tsalarm_create,
170 	},
171 	{ "pseudo", "ddi_pseudo", "ntwdt",
172 	    TYPE_EXACT | DRV_RE, ILEVEL_0, ntwdt_create,
173 	},
174 	{ "pseudo", "ddi_pseudo", "daplt",
175 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
176 	},
177 	{ "pseudo", "ddi_pseudo", "zcons",
178 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, zcons_create,
179 	},
180 	{ "pseudo", "ddi_pseudo", CPUID_DRIVER_NAME,
181 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, cpuid,
182 	},
183 	{ "pseudo", "ddi_pseudo", "glvc",
184 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, glvc,
185 	},
186 	{ "pseudo", "ddi_pseudo", "dm2s",
187 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name,
188 	},
189 	{ "pseudo", "ddi_pseudo", "nsmb",
190 	    TYPE_EXACT | DRV_EXACT, ILEVEL_1, minor_name,
191 	},
192 	{ "pseudo", "ddi_pseudo", "mem_cache",
193 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
194 	},
195 	{ "pseudo", "ddi_pseudo", "fm",
196 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
197 	},
198 	{ "pseudo", "ddi_pseudo", "smbsrv",
199 	    TYPE_EXACT | DRV_EXACT, ILEVEL_1, minor_name,
200 	},
201 	{ "pseudo", "ddi_pseudo", "tpm",
202 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
203 	},
204 };
205 
206 DEVFSADM_CREATE_INIT_V0(misc_cbt);
207 
208 static devfsadm_remove_t misc_remove_cbt[] = {
209 	{ "pseudo", "^profile$",
210 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
211 	},
212 	{ "pseudo", "^rsm$",
213 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
214 	},
215 	{ "printer", "^printers/[0-9]+$",
216 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
217 	},
218 	{ "av", "^av/[0-9]+/(async|isoch)$",
219 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
220 	},
221 	{ "pseudo", "^daplt$",
222 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
223 	},
224 	{ "pseudo", "^zcons/" ZONENAME_REGEXP "/(" ZCONS_MASTER_NAME "|"
225 		ZCONS_SLAVE_NAME ")$",
226 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
227 	},
228 	{ "pseudo", "^" CPUID_SELF_NAME "$", RM_ALWAYS | RM_PRE | RM_HOT,
229 	    ILEVEL_0, devfsadm_rm_all
230 	},
231 	{ "enclosure", "^es/ses[0-9]+$", RM_POST,
232 		ILEVEL_0, devfsadm_rm_all
233 	},
234 	{ "pseudo", "^pfil$",
235 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
236 	},
237 	{ "pseudo", "^tpm$",
238 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
239 	},
240 	{ "pseudo", "^sctp|sctp6$",
241 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_link
242 	}
243 };
244 
245 /* Rules for gpio devices */
246 static devfsadm_enumerate_t gpio_rules[1] =
247 	{"^gpio([0-9]+)$", 1, MATCH_ALL};
248 
249 DEVFSADM_REMOVE_INIT_V0(misc_remove_cbt);
250 
251 /*
252  * Handles minor node type "ddi_display".
253  *
254  * type=ddi_display fbs/\M0 fb\N0
255  */
256 static int
257 display(di_minor_t minor, di_node_t node)
258 {
259 	char l_path[PATH_MAX + 1], contents[PATH_MAX + 1], *buf;
260 	devfsadm_enumerate_t rules[1] = {"^fb([0-9]+)$", 1, MATCH_ALL};
261 	char *mn = di_minor_name(minor);
262 
263 	/* create fbs/\M0 primary link */
264 	(void) strcpy(l_path, "fbs/");
265 	(void) strcat(l_path, mn);
266 	(void) devfsadm_mklink(l_path, node, minor, 0);
267 
268 	/* create fb\N0 which links to fbs/\M0 */
269 	if (devfsadm_enumerate_int(l_path, 0, &buf, rules, 1)) {
270 		return (DEVFSADM_CONTINUE);
271 	}
272 	(void) strcpy(contents, l_path);
273 	(void) strcpy(l_path, "fb");
274 	(void) strcat(l_path, buf);
275 	free(buf);
276 	(void) devfsadm_secondary_link(l_path, contents, 0);
277 	return (DEVFSADM_CONTINUE);
278 }
279 
280 /*
281  * Handles minor node type "ddi_parallel".
282  * type=ddi_parallel;name=mcpp     mcpp\N0
283  */
284 static int
285 parallel(di_minor_t minor, di_node_t node)
286 {
287 	char path[PATH_MAX + 1], *buf;
288 	devfsadm_enumerate_t rules[1] = {"mcpp([0-9]+)$", 1, MATCH_ALL};
289 
290 
291 	if (strcmp(di_node_name(node), "mcpp") != 0) {
292 		return (DEVFSADM_CONTINUE);
293 	}
294 
295 	if (NULL == (buf = di_devfs_path(node))) {
296 		return (DEVFSADM_CONTINUE);
297 	}
298 
299 	(void) snprintf(path, sizeof (path), "%s:%s",
300 	    buf, di_minor_name(minor));
301 
302 	di_devfs_path_free(buf);
303 
304 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
305 		return (DEVFSADM_CONTINUE);
306 	}
307 	(void) snprintf(path, sizeof (path), "mcpp%s", buf);
308 	free(buf);
309 
310 	(void) devfsadm_mklink(path, node, minor, 0);
311 	return (DEVFSADM_CONTINUE);
312 }
313 
314 static int
315 ses_callback(di_minor_t minor, di_node_t node)
316 {
317 	char l_path[PATH_MAX];
318 	char *buf;
319 	char *devfspath;
320 	char p_path[PATH_MAX];
321 	devfsadm_enumerate_t re[] = {"^es$/^ses([0-9]+)$", 1, MATCH_ALL};
322 
323 	/* find devices path -- need to free mem */
324 	if (NULL == (devfspath = di_devfs_path(node))) {
325 		return (DEVFSADM_CONTINUE);
326 	}
327 
328 	(void) snprintf(p_path, sizeof (p_path), "%s:%s", devfspath,
329 	    di_minor_name(minor));
330 
331 
332 	/* find next number to use; buf is an ascii number */
333 	if (devfsadm_enumerate_int(p_path, 0, &buf, re, 1)) {
334 		/* free memory */
335 		di_devfs_path_free(devfspath);
336 		return (DEVFSADM_CONTINUE);
337 	}
338 
339 	(void) snprintf(l_path, sizeof (l_path), "es/ses%s", buf);
340 
341 	(void) devfsadm_mklink(l_path, node, minor, 0);
342 	/* free memory */
343 	free(buf);
344 	di_devfs_path_free(devfspath);
345 	return (DEVFSADM_CONTINUE);
346 
347 }
348 
349 static int
350 node_slash_minor(di_minor_t minor, di_node_t node)
351 {
352 
353 	char path[PATH_MAX + 1];
354 
355 	(void) strcpy(path, di_node_name(node));
356 	(void) strcat(path, "/");
357 	(void) strcat(path, di_minor_name(minor));
358 	(void) devfsadm_mklink(path, node, minor, 0);
359 	return (DEVFSADM_CONTINUE);
360 }
361 
362 static int
363 driver_minor(di_minor_t minor, di_node_t node)
364 {
365 	char path[PATH_MAX + 1];
366 
367 	(void) strcpy(path, di_driver_name(node));
368 	(void) strcat(path, di_minor_name(minor));
369 	(void) devfsadm_mklink(path, node, minor, 0);
370 	return (DEVFSADM_CONTINUE);
371 }
372 
373 /*
374  * Handles links of the form:
375  * type=ddi_pseudo;name=xyz  \D
376  */
377 static int
378 node_name(di_minor_t minor, di_node_t node)
379 {
380 	(void) devfsadm_mklink(di_node_name(node), node, minor, 0);
381 	return (DEVFSADM_CONTINUE);
382 }
383 
384 /*
385  * Handles links of the form:
386  * type=ddi_pseudo;name=xyz  \M0
387  */
388 static int
389 minor_name(di_minor_t minor, di_node_t node)
390 {
391 	char *mn = di_minor_name(minor);
392 
393 	(void) devfsadm_mklink(mn, node, minor, 0);
394 	if (strcmp(mn, "icmp") == 0) {
395 		(void) devfsadm_mklink("rawip", node, minor, 0);
396 	}
397 	if (strcmp(mn, "icmp6") == 0) {
398 		(void) devfsadm_mklink("rawip6", node, minor, 0);
399 	}
400 	if (strcmp(mn, "ipf") == 0) {
401 		(void) devfsadm_mklink("ipl", node, minor, 0);
402 	}
403 	return (DEVFSADM_CONTINUE);
404 }
405 
406 /*
407  * create links at /dev/wifi for wifi minor node
408  */
409 static int
410 wifi_minor_name(di_minor_t minor, di_node_t node)
411 {
412 	char buf[256];
413 	char *mn = di_minor_name(minor);
414 
415 	(void) snprintf(buf, sizeof (buf), "%s%s", "wifi/", mn);
416 	(void) devfsadm_mklink(buf, node, minor, 0);
417 
418 	return (DEVFSADM_CONTINUE);
419 }
420 
421 static int
422 conskbd(di_minor_t minor, di_node_t node)
423 {
424 	(void) devfsadm_mklink("kbd", node, minor, 0);
425 	return (DEVFSADM_CONTINUE);
426 }
427 
428 static int
429 consms(di_minor_t minor, di_node_t node)
430 {
431 	(void) devfsadm_mklink("mouse", node, minor, 0);
432 	return (DEVFSADM_CONTINUE);
433 }
434 
435 static int
436 power_button(di_minor_t minor, di_node_t node)
437 {
438 	(void) devfsadm_mklink("power_button", node, minor, 0);
439 	return (DEVFSADM_CONTINUE);
440 }
441 
442 static int
443 fc_port(di_minor_t minor, di_node_t node)
444 {
445 	devfsadm_enumerate_t rules[1] = {"fc/fp([0-9]+)$", 1, MATCH_ALL};
446 	char *buf, path[PATH_MAX + 1];
447 	char *ptr;
448 
449 	if (NULL == (ptr = di_devfs_path(node))) {
450 		return (DEVFSADM_CONTINUE);
451 	}
452 
453 	(void) strcpy(path, ptr);
454 	(void) strcat(path, ":");
455 	(void) strcat(path, di_minor_name(minor));
456 
457 	di_devfs_path_free(ptr);
458 
459 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1) != 0) {
460 		return (DEVFSADM_CONTINUE);
461 	}
462 
463 	(void) strcpy(path, "fc/fp");
464 	(void) strcat(path, buf);
465 	free(buf);
466 
467 	(void) devfsadm_mklink(path, node, minor, 0);
468 	return (DEVFSADM_CONTINUE);
469 }
470 
471 /*
472  * Handles:
473  *	minor node type "ddi_printer".
474  * 	rules of the form: type=ddi_printer;name=bpp  \M0
475  */
476 static int
477 printer_create(di_minor_t minor, di_node_t node)
478 {
479 	char *mn;
480 	char path[PATH_MAX + 1], *buf;
481 	devfsadm_enumerate_t rules[1] = {"^printers$/^([0-9]+)$", 1, MATCH_ALL};
482 
483 	mn = di_minor_name(minor);
484 
485 	if (strcmp(di_driver_name(node), "bpp") == 0) {
486 		(void) devfsadm_mklink(mn, node, minor, 0);
487 	}
488 
489 	if (NULL == (buf = di_devfs_path(node))) {
490 		return (DEVFSADM_CONTINUE);
491 	}
492 
493 	(void) snprintf(path, sizeof (path), "%s:%s", buf, mn);
494 	di_devfs_path_free(buf);
495 
496 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
497 		return (DEVFSADM_CONTINUE);
498 	}
499 
500 	(void) snprintf(path, sizeof (path), "printers/%s", buf);
501 	free(buf);
502 
503 	(void) devfsadm_mklink(path, node, minor, 0);
504 
505 	return (DEVFSADM_CONTINUE);
506 }
507 
508 /*
509  * Handles links of the form:
510  * type=ddi_pseudo;name=se;minor2=hdlc	se_hdlc\N0
511  * type=ddi_pseudo;name=serial;minor2=hdlc	se_hdlc\N0
512  */
513 static int
514 se_hdlc_create(di_minor_t minor, di_node_t node)
515 {
516 	devfsadm_enumerate_t rules[1] = {"^se_hdlc([0-9]+)$", 1, MATCH_ALL};
517 	char *buf, path[PATH_MAX + 1];
518 	char *ptr;
519 	char *mn;
520 
521 	mn = di_minor_name(minor);
522 
523 	/* minor node should be of the form: "?,hdlc" */
524 	if (strcmp(mn + 1, ",hdlc") != 0) {
525 		return (DEVFSADM_CONTINUE);
526 	}
527 
528 	if (NULL == (ptr = di_devfs_path(node))) {
529 		return (DEVFSADM_CONTINUE);
530 	}
531 
532 	(void) strcpy(path, ptr);
533 	(void) strcat(path, ":");
534 	(void) strcat(path, mn);
535 
536 	di_devfs_path_free(ptr);
537 
538 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1) != 0) {
539 		return (DEVFSADM_CONTINUE);
540 	}
541 
542 	(void) strcpy(path, "se_hdlc");
543 	(void) strcat(path, buf);
544 	free(buf);
545 
546 	(void) devfsadm_mklink(path, node, minor, 0);
547 
548 	return (DEVFSADM_CONTINUE);
549 }
550 
551 static int
552 gpio(di_minor_t minor, di_node_t node)
553 {
554 	char l_path[PATH_MAX], p_path[PATH_MAX], *buf, *devfspath;
555 	char *minor_nm, *drvr_nm;
556 
557 
558 	minor_nm = di_minor_name(minor);
559 	drvr_nm = di_driver_name(node);
560 	if ((minor_nm == NULL) || (drvr_nm == NULL)) {
561 		return (DEVFSADM_CONTINUE);
562 	}
563 
564 	devfspath = di_devfs_path(node);
565 
566 	(void) strcpy(p_path, devfspath);
567 	(void) strcat(p_path, ":");
568 	(void) strcat(p_path, minor_nm);
569 	di_devfs_path_free(devfspath);
570 
571 	/* build the physical path from the components */
572 	if (devfsadm_enumerate_int(p_path, 0, &buf, gpio_rules, 1)) {
573 		return (DEVFSADM_CONTINUE);
574 	}
575 
576 	(void) snprintf(l_path, sizeof (l_path), "%s%s", "gpio", buf);
577 
578 	free(buf);
579 
580 	(void) devfsadm_mklink(l_path, node, minor, 0);
581 
582 	return (DEVFSADM_CONTINUE);
583 }
584 
585 /*
586  * Creates /dev/ppm nodes for Platform Specific PM module
587  */
588 static int
589 ppm(di_minor_t minor, di_node_t node)
590 {
591 	(void) devfsadm_mklink("ppm", node, minor, 0);
592 	return (DEVFSADM_CONTINUE);
593 }
594 
595 /*
596  * Handles:
597  *	/dev/av/[0-9]+/(async|isoch)
598  */
599 static int
600 av_create(di_minor_t minor, di_node_t node)
601 {
602 	devfsadm_enumerate_t rules[1] = {"^av$/^([0-9]+)$", 1, MATCH_ADDR};
603 	char	*minor_str;
604 	char	path[PATH_MAX + 1];
605 	char	*buf;
606 
607 	if ((buf = di_devfs_path(node)) == NULL) {
608 		return (DEVFSADM_CONTINUE);
609 	}
610 
611 	minor_str = di_minor_name(minor);
612 	(void) snprintf(path, sizeof (path), "%s:%s", buf, minor_str);
613 	di_devfs_path_free(buf);
614 
615 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
616 		return (DEVFSADM_CONTINUE);
617 	}
618 
619 	(void) snprintf(path, sizeof (path), "av/%s/%s", buf, minor_str);
620 	free(buf);
621 
622 	(void) devfsadm_mklink(path, node, minor, 0);
623 
624 	return (DEVFSADM_CONTINUE);
625 }
626 
627 /*
628  * Creates /dev/lom and /dev/tsalarm:ctl for tsalarm node
629  */
630 static int
631 tsalarm_create(di_minor_t minor, di_node_t node)
632 {
633 	char buf[PATH_MAX + 1];
634 	char *mn = di_minor_name(minor);
635 
636 	(void) snprintf(buf, sizeof (buf), "%s%s", di_node_name(node), ":ctl");
637 
638 	(void) devfsadm_mklink(mn, node, minor, 0);
639 	(void) devfsadm_mklink(buf, node, minor, 0);
640 
641 	return (DEVFSADM_CONTINUE);
642 }
643 
644 /*
645  * Creates /dev/ntwdt for ntwdt node
646  */
647 static int
648 ntwdt_create(di_minor_t minor, di_node_t node)
649 {
650 	(void) devfsadm_mklink("ntwdt", node, minor, 0);
651 	return (DEVFSADM_CONTINUE);
652 }
653 
654 static int
655 zcons_create(di_minor_t minor, di_node_t node)
656 {
657 	char	*minor_str;
658 	char	*zonename;
659 	char	path[MAXPATHLEN];
660 
661 	minor_str = di_minor_name(minor);
662 
663 	if (di_prop_lookup_strings(DDI_DEV_T_ANY, node, "zonename",
664 	    &zonename) == -1) {
665 		return (DEVFSADM_CONTINUE);
666 	}
667 
668 	(void) snprintf(path, sizeof (path), "zcons/%s/%s", zonename,
669 	    minor_str);
670 	(void) devfsadm_mklink(path, node, minor, 0);
671 
672 	return (DEVFSADM_CONTINUE);
673 }
674 
675 /*
676  *	/dev/cpu/self/cpuid 	->	/devices/pseudo/cpuid@0:self
677  */
678 static int
679 cpuid(di_minor_t minor, di_node_t node)
680 {
681 	(void) devfsadm_mklink(CPUID_SELF_NAME, node, minor, 0);
682 	return (DEVFSADM_CONTINUE);
683 }
684 
685 /*
686  * For device
687  *      /dev/spfma -> /devices/virtual-devices/fma@5:glvc
688  */
689 static int
690 glvc(di_minor_t minor, di_node_t node)
691 {
692 	char node_name[MAXNAMELEN + 1];
693 
694 	(void) strcpy(node_name, di_node_name(node));
695 
696 	if (strncmp(node_name, "fma", 3) == 0) {
697 		/* Only one fma channel */
698 		(void) devfsadm_mklink("spfma", node, minor, 0);
699 	}
700 	return (DEVFSADM_CONTINUE);
701 }
702 
703 /*
704  * Handles links of the form:
705  * type=ddi_pseudo;name=sckmdrv		kmdrv\M0
706  * type=ddi_pseudo;name=oplkmdrv	kmdrv\M0
707  */
708 static int
709 kmdrv_create(di_minor_t minor, di_node_t node)
710 {
711 
712 	(void) devfsadm_mklink("kmdrv", node, minor, 0);
713 	return (DEVFSADM_CONTINUE);
714 }
715