xref: /illumos-gate/usr/src/cmd/devfsadm/i386/misc_link_i386.c (revision 3185d26a1274d3eff47dcd1c4dd9ca606e6fdc34)
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 2010 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  * Copyright 2012 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 <ctype.h>
34 #include <sys/mc_amd.h>
35 #include <bsm/devalloc.h>
36 
37 extern int system_labeled;
38 
39 static int lp(di_minor_t minor, di_node_t node);
40 static int serial_dialout(di_minor_t minor, di_node_t node);
41 static int serial(di_minor_t minor, di_node_t node);
42 static int diskette(di_minor_t minor, di_node_t node);
43 static int vt00(di_minor_t minor, di_node_t node);
44 static int kdmouse(di_minor_t minor, di_node_t node);
45 static int ipmi(di_minor_t minor, di_node_t node);
46 static int smbios(di_minor_t minor, di_node_t node);
47 static int mc_node(di_minor_t minor, di_node_t node);
48 static int xsvc(di_minor_t minor, di_node_t node);
49 static int srn(di_minor_t minor, di_node_t node);
50 static int ucode(di_minor_t minor, di_node_t node);
51 static int heci(di_minor_t minor, di_node_t node);
52 
53 
54 static devfsadm_create_t misc_cbt[] = {
55 	{ "vt00", "ddi_display", NULL,
56 	    TYPE_EXACT, ILEVEL_0,	vt00
57 	},
58 	{ "mouse", "ddi_mouse", "mouse8042",
59 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, kdmouse
60 	},
61 	{ "pseudo", "ddi_pseudo", "ipmi",
62 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, ipmi,
63 	},
64 	{ "pseudo", "ddi_pseudo", "smbios",
65 	    TYPE_EXACT | DRV_EXACT, ILEVEL_1, smbios,
66 	},
67 	/* floppies share the same class, but not link regex, as hard disks */
68 	{ "disk",  "ddi_block:diskette", NULL,
69 	    TYPE_EXACT, ILEVEL_1, diskette
70 	},
71 	{ "parallel",  "ddi_printer", NULL,
72 	    TYPE_EXACT, ILEVEL_1, lp
73 	},
74 	{ "serial", "ddi_serial:mb", NULL,
75 	    TYPE_EXACT, ILEVEL_1, serial
76 	},
77 	{ "serial",  "ddi_serial:dialout,mb", NULL,
78 	    TYPE_EXACT, ILEVEL_1, serial_dialout
79 	},
80 	{ "pseudo", "ddi_pseudo", NULL,
81 	    TYPE_EXACT, ILEVEL_0, xsvc
82 	},
83 	{ "pseudo", "ddi_pseudo", NULL,
84 	    TYPE_EXACT, ILEVEL_0, srn
85 	},
86 	{ "memory-controller", "ddi_mem_ctrl", NULL,
87 	    TYPE_EXACT, ILEVEL_0, mc_node
88 	},
89 	{ "pseudo", "ddi_pseudo", "ucode",
90 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, ucode,
91 	},
92 	{ "pseudo", "ddi_pseudo", "heci",
93 	    TYPE_EXACT | DRV_EXACT, ILEVEL_0, heci,
94 	}
95 };
96 
97 DEVFSADM_CREATE_INIT_V0(misc_cbt);
98 
99 static devfsadm_remove_t misc_remove_cbt[] = {
100 	{ "vt", "vt[0-9][0-9]", RM_PRE|RM_ALWAYS,
101 		ILEVEL_0, devfsadm_rm_all
102 	},
103 	{ "pseudo", "^ucode$", RM_ALWAYS | RM_PRE | RM_HOT,
104 		ILEVEL_0, devfsadm_rm_all
105 	},
106 	{ "mouse", "^kdmouse$", RM_ALWAYS | RM_PRE,
107 		ILEVEL_0, devfsadm_rm_all
108 	},
109 	{ "disk", "^(diskette|rdiskette)([0-9]*)$",
110 		RM_ALWAYS | RM_PRE, ILEVEL_1, devfsadm_rm_all
111 	},
112 	{ "parallel", "^(lp|ecpp)([0-9]+)$", RM_ALWAYS | RM_PRE,
113 		ILEVEL_1, devfsadm_rm_all
114 	},
115 	{ "serial", "^(tty|ttyd)([0-9]+)$", RM_ALWAYS | RM_PRE,
116 		ILEVEL_1, devfsadm_rm_all
117 	},
118 	{ "serial", "^tty[a-z]$", RM_ALWAYS | RM_PRE,
119 		ILEVEL_1, devfsadm_rm_all
120 	}
121 };
122 
123 DEVFSADM_REMOVE_INIT_V0(misc_remove_cbt);
124 
125 /*
126  * Handles minor node type "ddi_display", in addition to generic processing
127  * done by display().
128  *
129  * This creates a /dev/vt00 link to /dev/fb, for backwards compatibility.
130  */
131 /* ARGSUSED */
132 int
133 vt00(di_minor_t minor, di_node_t node)
134 {
135 	(void) devfsadm_secondary_link("vt00", "fb", 0);
136 	return (DEVFSADM_CONTINUE);
137 }
138 
139 /*
140  * type=ddi_block:diskette;addr=0,0;minor=c        diskette
141  * type=ddi_block:diskette;addr=0,0;minor=c,raw    rdiskette
142  * type=ddi_block:diskette;addr1=0;minor=c diskette\A2
143  * type=ddi_block:diskette;addr1=0;minor=c,raw     rdiskette\A2
144  */
145 static int
146 diskette(di_minor_t minor, di_node_t node)
147 {
148 	int flags = 0;
149 	char *a2;
150 	char link[PATH_MAX];
151 	char *addr = di_bus_addr(node);
152 	char *mn = di_minor_name(minor);
153 
154 	if (system_labeled)
155 		flags = DA_ADD|DA_FLOPPY;
156 
157 	if (strcmp(addr, "0,0") == 0) {
158 		if (strcmp(mn, "c") == 0) {
159 			(void) devfsadm_mklink("diskette", node, minor, flags);
160 		} else if (strcmp(mn, "c,raw") == 0) {
161 			(void) devfsadm_mklink("rdiskette", node, minor, flags);
162 		}
163 
164 	}
165 
166 	if (addr[0] == '0') {
167 		if ((a2 = strchr(addr, ',')) != NULL) {
168 			a2++;
169 			if (strcmp(mn, "c") == 0) {
170 				(void) strcpy(link, "diskette");
171 				(void) strcat(link, a2);
172 				(void) devfsadm_mklink(link, node, minor,
173 				    flags);
174 			} else if (strcmp(mn, "c,raw") == 0) {
175 				(void) strcpy(link, "rdiskette");
176 				(void) strcat(link, a2);
177 				(void) devfsadm_mklink(link, node, minor,
178 				    flags);
179 			}
180 		}
181 	}
182 
183 	return (DEVFSADM_CONTINUE);
184 }
185 
186 /*
187  * type=ddi_printer;name=lp;addr=1,3bc      lp0
188  * type=ddi_printer;name=lp;addr=1,378      lp1
189  * type=ddi_printer;name=lp;addr=1,278      lp2
190  */
191 static int
192 lp(di_minor_t minor, di_node_t node)
193 {
194 	char *addr = di_bus_addr(node);
195 	char *buf;
196 	char path[PATH_MAX + 1];
197 	devfsadm_enumerate_t rules[1] = {"^ecpp([0-9]+)$", 1, MATCH_ALL};
198 
199 	if (strcmp(addr, "1,3bc") == 0) {
200 		(void) devfsadm_mklink("lp0", node, minor, 0);
201 
202 	} else if (strcmp(addr, "1,378") == 0) {
203 		(void) devfsadm_mklink("lp1", node, minor, 0);
204 
205 	} else if (strcmp(addr, "1,278") == 0) {
206 		(void) devfsadm_mklink("lp2", node, minor, 0);
207 	}
208 
209 	if (strcmp(di_driver_name(node), "ecpp") != 0) {
210 		return (DEVFSADM_CONTINUE);
211 	}
212 
213 	if ((buf = di_devfs_path(node)) == NULL) {
214 		return (DEVFSADM_CONTINUE);
215 	}
216 
217 	(void) snprintf(path, sizeof (path), "%s:%s",
218 	    buf, di_minor_name(minor));
219 
220 	di_devfs_path_free(buf);
221 
222 	if (devfsadm_enumerate_int(path, 0, &buf, rules, 1)) {
223 		return (DEVFSADM_CONTINUE);
224 	}
225 
226 	(void) snprintf(path, sizeof (path), "ecpp%s", buf);
227 	free(buf);
228 	(void) devfsadm_mklink(path, node, minor, 0);
229 	return (DEVFSADM_CONTINUE);
230 }
231 
232 /*
233  * type=ddi_serial:mb;minor=a      tty00
234  * type=ddi_serial:mb;minor=b      tty01
235  * type=ddi_serial:mb;minor=c      tty02
236  * type=ddi_serial:mb;minor=d      tty03
237  */
238 static int
239 serial(di_minor_t minor, di_node_t node)
240 {
241 
242 	char *mn = di_minor_name(minor);
243 	char link[PATH_MAX];
244 
245 	(void) strcpy(link, "tty");
246 	(void) strcat(link, mn);
247 	(void) devfsadm_mklink(link, node, minor, 0);
248 
249 	if (strcmp(mn, "a") == 0) {
250 		(void) devfsadm_mklink("tty00", node, minor, 0);
251 
252 	} else if (strcmp(mn, "b") == 0) {
253 		(void) devfsadm_mklink("tty01", node, minor, 0);
254 
255 	} else if (strcmp(mn, "c") == 0) {
256 		(void) devfsadm_mklink("tty02", node, minor, 0);
257 
258 	} else if (strcmp(mn, "d") == 0) {
259 		(void) devfsadm_mklink("tty03", node, minor, 0);
260 	}
261 	return (DEVFSADM_CONTINUE);
262 }
263 
264 /*
265  * type=ddi_serial:dialout,mb;minor=a,cu   ttyd0
266  * type=ddi_serial:dialout,mb;minor=b,cu   ttyd1
267  * type=ddi_serial:dialout,mb;minor=c,cu   ttyd2
268  * type=ddi_serial:dialout,mb;minor=d,cu   ttyd3
269  */
270 static int
271 serial_dialout(di_minor_t minor, di_node_t node)
272 {
273 	char *mn = di_minor_name(minor);
274 
275 	if (strcmp(mn, "a,cu") == 0) {
276 		(void) devfsadm_mklink("ttyd0", node, minor, 0);
277 		(void) devfsadm_mklink("cua0", node, minor, 0);
278 
279 	} else if (strcmp(mn, "b,cu") == 0) {
280 		(void) devfsadm_mklink("ttyd1", node, minor, 0);
281 		(void) devfsadm_mklink("cua1", node, minor, 0);
282 
283 	} else if (strcmp(mn, "c,cu") == 0) {
284 		(void) devfsadm_mklink("ttyd2", node, minor, 0);
285 		(void) devfsadm_mklink("cua2", node, minor, 0);
286 
287 	} else if (strcmp(mn, "d,cu") == 0) {
288 		(void) devfsadm_mklink("ttyd3", node, minor, 0);
289 		(void) devfsadm_mklink("cua3", node, minor, 0);
290 	}
291 	return (DEVFSADM_CONTINUE);
292 }
293 
294 static int
295 kdmouse(di_minor_t minor, di_node_t node)
296 {
297 	(void) devfsadm_mklink("kdmouse", node, minor, 0);
298 	return (DEVFSADM_CONTINUE);
299 }
300 
301 static int
302 ipmi(di_minor_t minor, di_node_t node)
303 {
304 	/*
305 	 * Follow convention from other systems, and include an instance#,
306 	 * even though there will only be one.
307 	 */
308 	(void) devfsadm_mklink("ipmi0", node, minor, 0);
309 	return (DEVFSADM_CONTINUE);
310 }
311 
312 static int
313 smbios(di_minor_t minor, di_node_t node)
314 {
315 	(void) devfsadm_mklink("smbios", node, minor, 0);
316 	return (DEVFSADM_CONTINUE);
317 }
318 
319 /*
320  * /dev/mc/mc<chipid> -> /devices/.../pci1022,1102@<chipid+24>,2:mc-amd
321  */
322 static int
323 mc_node(di_minor_t minor, di_node_t node)
324 {
325 	const char *minorname = di_minor_name(minor);
326 	const char *busaddr = di_bus_addr(node);
327 	char linkpath[PATH_MAX];
328 	int unitaddr;
329 	char *c;
330 
331 	if (minorname == NULL || busaddr == NULL)
332 		return (DEVFSADM_CONTINUE);
333 
334 	errno = 0;
335 	unitaddr = strtol(busaddr, &c, 16);
336 
337 	if (errno != 0)
338 		return (DEVFSADM_CONTINUE);
339 
340 	if (unitaddr == 0) {
341 		(void) snprintf(linkpath, sizeof (linkpath), "mc/mc");
342 	} else if (unitaddr >= MC_AMD_DEV_OFFSET) {
343 		(void) snprintf(linkpath, sizeof (linkpath), "mc/mc%u",
344 		    unitaddr - MC_AMD_DEV_OFFSET);
345 	} else {
346 		(void) snprintf(linkpath, sizeof (linkpath), "mc/mc%u",
347 		    minor->dev_minor);
348 	}
349 	(void) devfsadm_mklink(linkpath, node, minor, 0);
350 	return (DEVFSADM_CONTINUE);
351 }
352 
353 /*
354  * Creates \M0 devlink for xsvc node
355  */
356 static int
357 xsvc(di_minor_t minor, di_node_t node)
358 {
359 	char *mn;
360 
361 	if (strcmp(di_node_name(node), "xsvc") != 0)
362 		return (DEVFSADM_CONTINUE);
363 
364 	mn = di_minor_name(minor);
365 	if (mn == NULL)
366 		return (DEVFSADM_CONTINUE);
367 
368 	(void) devfsadm_mklink(mn, node, minor, 0);
369 	return (DEVFSADM_CONTINUE);
370 }
371 
372 /*
373  * Creates \M0 devlink for srn device
374  */
375 static int
376 srn(di_minor_t minor, di_node_t node)
377 {
378 	char *mn;
379 
380 	if (strcmp(di_node_name(node), "srn") != 0)
381 		return (DEVFSADM_CONTINUE);
382 
383 	mn = di_minor_name(minor);
384 	if (mn == NULL)
385 		return (DEVFSADM_CONTINUE);
386 
387 	(void) devfsadm_mklink(mn, node, minor, 0);
388 	return (DEVFSADM_CONTINUE);
389 }
390 
391 /*
392  *	/dev/ucode	->	/devices/pseudo/ucode@0:ucode
393  */
394 static int
395 ucode(di_minor_t minor, di_node_t node)
396 {
397 	(void) devfsadm_mklink("ucode", node, minor, 0);
398 	return (DEVFSADM_CONTINUE);
399 }
400 
401 static int
402 heci(di_minor_t minor, di_node_t node)
403 {
404 	if (strcmp(di_minor_name(minor), "AMT") == 0) {
405 		(void) devfsadm_mklink("heci", node, minor, 0);
406 	}
407 	return (DEVFSADM_CONTINUE);
408 }
409