usr/src/cmd/devfsadm/i386/misc_link_i386.c

   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 }