xref: /illumos-gate/usr/src/cmd/devfsadm/misc_link.c (revision 66582b606a8194f7f3ba5b3a3a6dca5b0d346361)
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$)",
84 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_name
85 	},
86 	{ "pseudo", "ddi_pseudo", "conskbd",
87 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, conskbd
88 	},
89 	{ "pseudo", "ddi_pseudo", "consms",
90 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, consms
91 	},
92 	{ "pseudo", "ddi_pseudo", "eventfd",
93 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
94 	},
95 	{ "pseudo", "ddi_pseudo", "signalfd",
96 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
97 	},
98 	{ "pseudo", "ddi_pseudo", "rsm",
99 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
100 	},
101 	{ "pseudo", "ddi_pseudo",
102 	    "(^lockstat$)|(^SUNW,rtvc$)|(^vol$)|(^log$)|(^sy$)|"
103 	    "(^ksyms$)|(^clone$)|(^tl$)|(^tnf$)|(^kstat$)|(^mdesc$)|(^eeprom$)|"
104 	    "(^ptsl$)|(^mm$)|(^wc$)|(^dump$)|(^cn$)|(^svvslo$)|(^ptm$)|"
105 	    "(^ptc$)|(^openeepr$)|(^poll$)|(^sysmsg$)|(^random$)|(^trapstat$)|"
106 	    "(^cryptoadm$)|(^crypto$)|(^pool$)|(^poolctl$)|(^bl$)|(^kmdb$)|"
107 	    "(^sysevent$)|(^kssl$)|(^physmem$)",
108 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name
109 	},
110 	{ "pseudo", "ddi_pseudo",
111 	    "(^ip$)|(^tcp$)|(^udp$)|(^icmp$)|"
112 	    "(^ip6$)|(^tcp6$)|(^udp6$)|(^icmp6$)|"
113 	    "(^rts$)|(^arp$)|(^ipsecah$)|(^ipsecesp$)|(^keysock$)|(^spdsock$)|"
114 	    "(^nca$)|(^rds$)|(^sdp$)|(^ipnet$)|(^dlpistub$)|(^bpf$)",
115 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name
116 	},
117 	{ "pseudo", "ddi_pseudo", "ipd",
118 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
119 	},
120 	{ "pseudo", "ddi_pseudo",
121 	    "(^ipf$)|(^ipnat$)|(^ipstate$)|(^ipauth$)|"
122 	    "(^ipsync$)|(^ipscan$)|(^iplookup$)",
123 	    TYPE_EXACT | DRV_RE, ILEVEL_0, minor_name,
124 	},
125 	{ "pseudo", "ddi_pseudo", "dld",
126 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, node_name
127 	},
128 	{ "pseudo", "ddi_pseudo",
129 	    "(^kdmouse$)|(^rootprop$)",
130 	    TYPE_EXACT | DRV_RE, ILEVEL_0, node_name
131 	},
132 	{ "pseudo", "ddi_pseudo", "timerfd",
133 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
134 	},
135 	{ "pseudo", "ddi_pseudo", "tod",
136 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, node_name
137 	},
138 	{ "pseudo", "ddi_pseudo", "envctrl(two)?",
139 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
140 	},
141 	{ "pseudo", "ddi_pseudo", "fcode",
142 	    TYPE_EXACT | DRV_RE, ILEVEL_0, minor_name,
143 	},
144 	{ "power_button", "ddi_power_button", NULL,
145 	    TYPE_EXACT, ILEVEL_0, power_button,
146 	},
147 	{ "FC port", "ddi_ctl:devctl", "fp",
148 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, fc_port
149 	},
150 	{ "printer", "ddi_printer", NULL,
151 	    TYPE_EXACT, ILEVEL_0, printer_create
152 	},
153 	{ "pseudo", "ddi_pseudo", "se",
154 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, se_hdlc_create
155 	},
156 	{ "ppm",  "ddi_ppm", NULL,
157 	    TYPE_EXACT, ILEVEL_0, ppm
158 	},
159 	{ "pseudo", "ddi_pseudo", "gpio_87317",
160 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, gpio
161 	},
162 	{ "pseudo", "ddi_pseudo", "sckmdrv",
163 	    TYPE_EXACT | DRV_RE, ILEVEL_0, kmdrv_create,
164 	},
165 	{ "pseudo", "ddi_pseudo", "oplkmdrv",
166 	    TYPE_EXACT | DRV_RE, ILEVEL_0, kmdrv_create,
167 	},
168 	{ "av", "^ddi_av:(isoch|async)$", NULL,
169 	    TYPE_RE, ILEVEL_0, av_create,
170 	},
171 	{ "pseudo", "ddi_pseudo", "tsalarm",
172 	    TYPE_EXACT | DRV_RE, ILEVEL_0, tsalarm_create,
173 	},
174 	{ "pseudo", "ddi_pseudo", "ntwdt",
175 	    TYPE_EXACT | DRV_RE, ILEVEL_0, ntwdt_create,
176 	},
177 	{ "pseudo", "ddi_pseudo", "daplt",
178 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
179 	},
180 	{ "pseudo", "ddi_pseudo", "zcons",
181 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, zcons_create,
182 	},
183 	{ "pseudo", "ddi_pseudo", CPUID_DRIVER_NAME,
184 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, cpuid,
185 	},
186 	{ "pseudo", "ddi_pseudo", "glvc",
187 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, glvc,
188 	},
189 	{ "pseudo", "ddi_pseudo", "dm2s",
190 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name,
191 	},
192 	{ "pseudo", "ddi_pseudo", "nsmb",
193 	    TYPE_EXACT | DRV_EXACT, ILEVEL_1, minor_name,
194 	},
195 	{ "pseudo", "ddi_pseudo", "mem_cache",
196 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
197 	},
198 	{ "pseudo", "ddi_pseudo", "fm",
199 	    TYPE_EXACT | DRV_RE, ILEVEL_1, minor_name,
200 	},
201 	{ "pseudo", "ddi_pseudo", "smbsrv",
202 	    TYPE_EXACT | DRV_EXACT, ILEVEL_1, minor_name,
203 	},
204 	{ "pseudo", "ddi_pseudo", "tpm",
205 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, minor_name
206 	},
207 };
208 
209 DEVFSADM_CREATE_INIT_V0(misc_cbt);
210 
211 static devfsadm_remove_t misc_remove_cbt[] = {
212 	{ "pseudo", "^profile$",
213 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
214 	},
215 	{ "pseudo", "^rsm$",
216 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
217 	},
218 	{ "printer", "^printers/[0-9]+$",
219 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
220 	},
221 	{ "av", "^av/[0-9]+/(async|isoch)$",
222 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
223 	},
224 	{ "pseudo", "^daplt$",
225 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
226 	},
227 	{ "pseudo", "^zcons/" ZONENAME_REGEXP "/(" ZCONS_MASTER_NAME "|"
228 		ZCONS_SLAVE_NAME ")$",
229 	    RM_PRE | RM_HOT | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
230 	},
231 	{ "pseudo", "^" CPUID_SELF_NAME "$", RM_ALWAYS | RM_PRE | RM_HOT,
232 	    ILEVEL_0, devfsadm_rm_all
233 	},
234 	{ "enclosure", "^es/ses[0-9]+$", RM_POST,
235 		ILEVEL_0, devfsadm_rm_all
236 	},
237 	{ "pseudo", "^pfil$",
238 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
239 	},
240 	{ "pseudo", "^tpm$",
241 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_all
242 	},
243 	{ "pseudo", "^sctp|sctp6$",
244 	    RM_PRE | RM_ALWAYS, ILEVEL_0, devfsadm_rm_link
245 	}
246 };
247 
248 /* Rules for gpio devices */
249 static devfsadm_enumerate_t gpio_rules[1] =
250 	{"^gpio([0-9]+)$", 1, MATCH_ALL};
251 
252 DEVFSADM_REMOVE_INIT_V0(misc_remove_cbt);
253 
254 /*
255  * Handles minor node type "ddi_display".
256  *
257  * type=ddi_display fbs/\M0 fb\N0
258  */
259 static int
260 display(di_minor_t minor, di_node_t node)
261 {
262 	char l_path[PATH_MAX + 1], contents[PATH_MAX + 1], *buf;
263 	devfsadm_enumerate_t rules[1] = {"^fb([0-9]+)$", 1, MATCH_ALL};
264 	char *mn = di_minor_name(minor);
265 
266 	/* create fbs/\M0 primary link */
267 	(void) strcpy(l_path, "fbs/");
268 	(void) strcat(l_path, mn);
269 	(void) devfsadm_mklink(l_path, node, minor, 0);
270 
271 	/* create fb\N0 which links to fbs/\M0 */
272 	if (devfsadm_enumerate_int(l_path, 0, &buf, rules, 1)) {
273 		return (DEVFSADM_CONTINUE);
274 	}
275 	(void) strcpy(contents, l_path);
276 	(void) strcpy(l_path, "fb");
277 	(void) strcat(l_path, buf);
278 	free(buf);
279 	(void) devfsadm_secondary_link(l_path, contents, 0);
280 	return (DEVFSADM_CONTINUE);
281 }
282 
283 /*
284  * Handles minor node type "ddi_parallel".
285  * type=ddi_parallel;name=mcpp     mcpp\N0
286  */
287 static int
288 parallel(di_minor_t minor, di_node_t node)
289 {
290 	char path[PATH_MAX + 1], *buf;
291 	devfsadm_enumerate_t rules[1] = {"mcpp([0-9]+)$", 1, MATCH_ALL};
292 
293 
294 	if (strcmp(di_node_name(node), "mcpp") != 0) {
295 		return (DEVFSADM_CONTINUE);
296 	}
297 
298 	if (NULL == (buf = di_devfs_path(node))) {
299 		return (DEVFSADM_CONTINUE);
300 	}
301 
302 	(void) snprintf(path, sizeof (path), "%s:%s",
303 	    buf, di_minor_name(minor));
304 
305 	di_devfs_path_free(buf);
306 
307 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
308 		return (DEVFSADM_CONTINUE);
309 	}
310 	(void) snprintf(path, sizeof (path), "mcpp%s", buf);
311 	free(buf);
312 
313 	(void) devfsadm_mklink(path, node, minor, 0);
314 	return (DEVFSADM_CONTINUE);
315 }
316 
317 static int
318 ses_callback(di_minor_t minor, di_node_t node)
319 {
320 	char l_path[PATH_MAX];
321 	char *buf;
322 	char *devfspath;
323 	char p_path[PATH_MAX];
324 	devfsadm_enumerate_t re[] = {"^es$/^ses([0-9]+)$", 1, MATCH_ALL};
325 
326 	/* find devices path -- need to free mem */
327 	if (NULL == (devfspath = di_devfs_path(node))) {
328 		return (DEVFSADM_CONTINUE);
329 	}
330 
331 	(void) snprintf(p_path, sizeof (p_path), "%s:%s", devfspath,
332 	    di_minor_name(minor));
333 
334 
335 	/* find next number to use; buf is an ascii number */
336 	if (devfsadm_enumerate_int(p_path, 0, &buf, re, 1)) {
337 		/* free memory */
338 		di_devfs_path_free(devfspath);
339 		return (DEVFSADM_CONTINUE);
340 	}
341 
342 	(void) snprintf(l_path, sizeof (l_path), "es/ses%s", buf);
343 
344 	(void) devfsadm_mklink(l_path, node, minor, 0);
345 	/* free memory */
346 	free(buf);
347 	di_devfs_path_free(devfspath);
348 	return (DEVFSADM_CONTINUE);
349 
350 }
351 
352 static int
353 node_slash_minor(di_minor_t minor, di_node_t node)
354 {
355 
356 	char path[PATH_MAX + 1];
357 
358 	(void) strcpy(path, di_node_name(node));
359 	(void) strcat(path, "/");
360 	(void) strcat(path, di_minor_name(minor));
361 	(void) devfsadm_mklink(path, node, minor, 0);
362 	return (DEVFSADM_CONTINUE);
363 }
364 
365 static int
366 driver_minor(di_minor_t minor, di_node_t node)
367 {
368 	char path[PATH_MAX + 1];
369 
370 	(void) strcpy(path, di_driver_name(node));
371 	(void) strcat(path, di_minor_name(minor));
372 	(void) devfsadm_mklink(path, node, minor, 0);
373 	return (DEVFSADM_CONTINUE);
374 }
375 
376 /*
377  * Handles links of the form:
378  * type=ddi_pseudo;name=xyz  \D
379  */
380 static int
381 node_name(di_minor_t minor, di_node_t node)
382 {
383 	(void) devfsadm_mklink(di_node_name(node), node, minor, 0);
384 	return (DEVFSADM_CONTINUE);
385 }
386 
387 /*
388  * Handles links of the form:
389  * type=ddi_pseudo;name=xyz  \M0
390  */
391 static int
392 minor_name(di_minor_t minor, di_node_t node)
393 {
394 	char *mn = di_minor_name(minor);
395 
396 	(void) devfsadm_mklink(mn, node, minor, 0);
397 	if (strcmp(mn, "icmp") == 0) {
398 		(void) devfsadm_mklink("rawip", node, minor, 0);
399 	}
400 	if (strcmp(mn, "icmp6") == 0) {
401 		(void) devfsadm_mklink("rawip6", node, minor, 0);
402 	}
403 	if (strcmp(mn, "ipf") == 0) {
404 		(void) devfsadm_mklink("ipl", node, minor, 0);
405 	}
406 	return (DEVFSADM_CONTINUE);
407 }
408 
409 /*
410  * create links at /dev/wifi for wifi minor node
411  */
412 static int
413 wifi_minor_name(di_minor_t minor, di_node_t node)
414 {
415 	char buf[256];
416 	char *mn = di_minor_name(minor);
417 
418 	(void) snprintf(buf, sizeof (buf), "%s%s", "wifi/", mn);
419 	(void) devfsadm_mklink(buf, node, minor, 0);
420 
421 	return (DEVFSADM_CONTINUE);
422 }
423 
424 static int
425 conskbd(di_minor_t minor, di_node_t node)
426 {
427 	(void) devfsadm_mklink("kbd", node, minor, 0);
428 	return (DEVFSADM_CONTINUE);
429 }
430 
431 static int
432 consms(di_minor_t minor, di_node_t node)
433 {
434 	(void) devfsadm_mklink("mouse", node, minor, 0);
435 	return (DEVFSADM_CONTINUE);
436 }
437 
438 static int
439 power_button(di_minor_t minor, di_node_t node)
440 {
441 	(void) devfsadm_mklink("power_button", node, minor, 0);
442 	return (DEVFSADM_CONTINUE);
443 }
444 
445 static int
446 fc_port(di_minor_t minor, di_node_t node)
447 {
448 	devfsadm_enumerate_t rules[1] = {"fc/fp([0-9]+)$", 1, MATCH_ALL};
449 	char *buf, path[PATH_MAX + 1];
450 	char *ptr;
451 
452 	if (NULL == (ptr = di_devfs_path(node))) {
453 		return (DEVFSADM_CONTINUE);
454 	}
455 
456 	(void) strcpy(path, ptr);
457 	(void) strcat(path, ":");
458 	(void) strcat(path, di_minor_name(minor));
459 
460 	di_devfs_path_free(ptr);
461 
462 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1) != 0) {
463 		return (DEVFSADM_CONTINUE);
464 	}
465 
466 	(void) strcpy(path, "fc/fp");
467 	(void) strcat(path, buf);
468 	free(buf);
469 
470 	(void) devfsadm_mklink(path, node, minor, 0);
471 	return (DEVFSADM_CONTINUE);
472 }
473 
474 /*
475  * Handles:
476  *	minor node type "ddi_printer".
477  * 	rules of the form: type=ddi_printer;name=bpp  \M0
478  */
479 static int
480 printer_create(di_minor_t minor, di_node_t node)
481 {
482 	char *mn;
483 	char path[PATH_MAX + 1], *buf;
484 	devfsadm_enumerate_t rules[1] = {"^printers$/^([0-9]+)$", 1, MATCH_ALL};
485 
486 	mn = di_minor_name(minor);
487 
488 	if (strcmp(di_driver_name(node), "bpp") == 0) {
489 		(void) devfsadm_mklink(mn, node, minor, 0);
490 	}
491 
492 	if (NULL == (buf = di_devfs_path(node))) {
493 		return (DEVFSADM_CONTINUE);
494 	}
495 
496 	(void) snprintf(path, sizeof (path), "%s:%s", buf, mn);
497 	di_devfs_path_free(buf);
498 
499 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
500 		return (DEVFSADM_CONTINUE);
501 	}
502 
503 	(void) snprintf(path, sizeof (path), "printers/%s", buf);
504 	free(buf);
505 
506 	(void) devfsadm_mklink(path, node, minor, 0);
507 
508 	return (DEVFSADM_CONTINUE);
509 }
510 
511 /*
512  * Handles links of the form:
513  * type=ddi_pseudo;name=se;minor2=hdlc	se_hdlc\N0
514  * type=ddi_pseudo;name=serial;minor2=hdlc	se_hdlc\N0
515  */
516 static int
517 se_hdlc_create(di_minor_t minor, di_node_t node)
518 {
519 	devfsadm_enumerate_t rules[1] = {"^se_hdlc([0-9]+)$", 1, MATCH_ALL};
520 	char *buf, path[PATH_MAX + 1];
521 	char *ptr;
522 	char *mn;
523 
524 	mn = di_minor_name(minor);
525 
526 	/* minor node should be of the form: "?,hdlc" */
527 	if (strcmp(mn + 1, ",hdlc") != 0) {
528 		return (DEVFSADM_CONTINUE);
529 	}
530 
531 	if (NULL == (ptr = di_devfs_path(node))) {
532 		return (DEVFSADM_CONTINUE);
533 	}
534 
535 	(void) strcpy(path, ptr);
536 	(void) strcat(path, ":");
537 	(void) strcat(path, mn);
538 
539 	di_devfs_path_free(ptr);
540 
541 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1) != 0) {
542 		return (DEVFSADM_CONTINUE);
543 	}
544 
545 	(void) strcpy(path, "se_hdlc");
546 	(void) strcat(path, buf);
547 	free(buf);
548 
549 	(void) devfsadm_mklink(path, node, minor, 0);
550 
551 	return (DEVFSADM_CONTINUE);
552 }
553 
554 static int
555 gpio(di_minor_t minor, di_node_t node)
556 {
557 	char l_path[PATH_MAX], p_path[PATH_MAX], *buf, *devfspath;
558 	char *minor_nm, *drvr_nm;
559 
560 
561 	minor_nm = di_minor_name(minor);
562 	drvr_nm = di_driver_name(node);
563 	if ((minor_nm == NULL) || (drvr_nm == NULL)) {
564 		return (DEVFSADM_CONTINUE);
565 	}
566 
567 	devfspath = di_devfs_path(node);
568 
569 	(void) strcpy(p_path, devfspath);
570 	(void) strcat(p_path, ":");
571 	(void) strcat(p_path, minor_nm);
572 	di_devfs_path_free(devfspath);
573 
574 	/* build the physical path from the components */
575 	if (devfsadm_enumerate_int(p_path, 0, &buf, gpio_rules, 1)) {
576 		return (DEVFSADM_CONTINUE);
577 	}
578 
579 	(void) snprintf(l_path, sizeof (l_path), "%s%s", "gpio", buf);
580 
581 	free(buf);
582 
583 	(void) devfsadm_mklink(l_path, node, minor, 0);
584 
585 	return (DEVFSADM_CONTINUE);
586 }
587 
588 /*
589  * Creates /dev/ppm nodes for Platform Specific PM module
590  */
591 static int
592 ppm(di_minor_t minor, di_node_t node)
593 {
594 	(void) devfsadm_mklink("ppm", node, minor, 0);
595 	return (DEVFSADM_CONTINUE);
596 }
597 
598 /*
599  * Handles:
600  *	/dev/av/[0-9]+/(async|isoch)
601  */
602 static int
603 av_create(di_minor_t minor, di_node_t node)
604 {
605 	devfsadm_enumerate_t rules[1] = {"^av$/^([0-9]+)$", 1, MATCH_ADDR};
606 	char	*minor_str;
607 	char	path[PATH_MAX + 1];
608 	char	*buf;
609 
610 	if ((buf = di_devfs_path(node)) == NULL) {
611 		return (DEVFSADM_CONTINUE);
612 	}
613 
614 	minor_str = di_minor_name(minor);
615 	(void) snprintf(path, sizeof (path), "%s:%s", buf, minor_str);
616 	di_devfs_path_free(buf);
617 
618 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
619 		return (DEVFSADM_CONTINUE);
620 	}
621 
622 	(void) snprintf(path, sizeof (path), "av/%s/%s", buf, minor_str);
623 	free(buf);
624 
625 	(void) devfsadm_mklink(path, node, minor, 0);
626 
627 	return (DEVFSADM_CONTINUE);
628 }
629 
630 /*
631  * Creates /dev/lom and /dev/tsalarm:ctl for tsalarm node
632  */
633 static int
634 tsalarm_create(di_minor_t minor, di_node_t node)
635 {
636 	char buf[PATH_MAX + 1];
637 	char *mn = di_minor_name(minor);
638 
639 	(void) snprintf(buf, sizeof (buf), "%s%s", di_node_name(node), ":ctl");
640 
641 	(void) devfsadm_mklink(mn, node, minor, 0);
642 	(void) devfsadm_mklink(buf, node, minor, 0);
643 
644 	return (DEVFSADM_CONTINUE);
645 }
646 
647 /*
648  * Creates /dev/ntwdt for ntwdt node
649  */
650 static int
651 ntwdt_create(di_minor_t minor, di_node_t node)
652 {
653 	(void) devfsadm_mklink("ntwdt", node, minor, 0);
654 	return (DEVFSADM_CONTINUE);
655 }
656 
657 static int
658 zcons_create(di_minor_t minor, di_node_t node)
659 {
660 	char	*minor_str;
661 	char	*zonename;
662 	char	path[MAXPATHLEN];
663 
664 	minor_str = di_minor_name(minor);
665 
666 	if (di_prop_lookup_strings(DDI_DEV_T_ANY, node, "zonename",
667 	    &zonename) == -1) {
668 		return (DEVFSADM_CONTINUE);
669 	}
670 
671 	(void) snprintf(path, sizeof (path), "zcons/%s/%s", zonename,
672 	    minor_str);
673 	(void) devfsadm_mklink(path, node, minor, 0);
674 
675 	return (DEVFSADM_CONTINUE);
676 }
677 
678 /*
679  *	/dev/cpu/self/cpuid 	->	/devices/pseudo/cpuid@0:self
680  */
681 static int
682 cpuid(di_minor_t minor, di_node_t node)
683 {
684 	(void) devfsadm_mklink(CPUID_SELF_NAME, node, minor, 0);
685 	return (DEVFSADM_CONTINUE);
686 }
687 
688 /*
689  * For device
690  *      /dev/spfma -> /devices/virtual-devices/fma@5:glvc
691  */
692 static int
693 glvc(di_minor_t minor, di_node_t node)
694 {
695 	char node_name[MAXNAMELEN + 1];
696 
697 	(void) strcpy(node_name, di_node_name(node));
698 
699 	if (strncmp(node_name, "fma", 3) == 0) {
700 		/* Only one fma channel */
701 		(void) devfsadm_mklink("spfma", node, minor, 0);
702 	}
703 	return (DEVFSADM_CONTINUE);
704 }
705 
706 /*
707  * Handles links of the form:
708  * type=ddi_pseudo;name=sckmdrv		kmdrv\M0
709  * type=ddi_pseudo;name=oplkmdrv	kmdrv\M0
710  */
711 static int
712 kmdrv_create(di_minor_t minor, di_node_t node)
713 {
714 
715 	(void) devfsadm_mklink("kmdrv", node, minor, 0);
716 	return (DEVFSADM_CONTINUE);
717 }
718