namedev.c

   1 /*
   2  * namedev.c
   3  *
   4  * Userspace devfs
   5  *
   6  * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
   7  *
   8  *
   9  *      This program is free software; you can redistribute it and/or modify it
  10  *      under the terms of the GNU General Public License as published by the
  11  *      Free Software Foundation version 2 of the License.
  12  *
  13  *      This program is distributed in the hope that it will be useful, but
  14  *      WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  *      General Public License for more details.
  17  *
  18  *      You should have received a copy of the GNU General Public License along
  19  *      with this program; if not, write to the Free Software Foundation, Inc.,
  20  *      675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  */
  23
  24 /* define this to enable parsing debugging */
  25 /* #define DEBUG_PARSER */
  26
  27 #include <stddef.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <stdio.h>
  31 #include <fcntl.h>
  32 #include <ctype.h>
  33 #include <unistd.h>
  34 #include <errno.h>
  35 #include <sys/wait.h>
  36
  37 #include "list.h"
  38 #include "udev.h"
  39 #include "udev_version.h"
  40 #include "namedev.h"
  41 #include "libsysfs/libsysfs.h"
  42
  43 #define TYPE_LABEL      "LABEL"
  44 #define TYPE_NUMBER     "NUMBER"
  45 #define TYPE_TOPOLOGY   "TOPOLOGY"
  46 #define TYPE_REPLACE    "REPLACE"
  47 #define TYPE_CALLOUT    "CALLOUT"
  48
  49 static LIST_HEAD(config_device_list);
  50
  51 static void dump_dev(struct config_device *dev)
  52 {
  53         switch (dev->type) {
  54         case KERNEL_NAME:
  55                 dbg_parse("KERNEL name ='%s'"
  56                         " owner = '%s', group = '%s', mode = '%#o'",
  57                         dev->attr.name,
  58                         dev->attr.owner, dev->attr.group, dev->attr.mode);
  59                 break;
  60         case LABEL:
  61                 dbg_parse("LABEL name = '%s', bus = '%s', sysfs_file = '%s', sysfs_value = '%s'"
  62                         " owner = '%s', group = '%s', mode = '%#o'",
  63                         dev->attr.name, dev->bus, dev->sysfs_file, dev->sysfs_value,
  64                         dev->attr.owner, dev->attr.group, dev->attr.mode);
  65                 break;
  66         case NUMBER:
  67                 dbg_parse("NUMBER name = '%s', bus = '%s', id = '%s'"
  68                         " owner = '%s', group = '%s', mode = '%#o'",
  69                         dev->attr.name, dev->bus, dev->id,
  70                         dev->attr.owner, dev->attr.group, dev->attr.mode);
  71                 break;
  72         case TOPOLOGY:
  73                 dbg_parse("TOPOLOGY name = '%s', bus = '%s', place = '%s'"
  74                         " owner = '%s', group = '%s', mode = '%#o'",
  75                         dev->attr.name, dev->bus, dev->place,
  76                         dev->attr.owner, dev->attr.group, dev->attr.mode);
  77                 break;
  78         case REPLACE:
  79                 dbg_parse("REPLACE name = %s, kernel_name = %s"
  80                         " owner = '%s', group = '%s', mode = '%#o'",
  81                         dev->attr.name, dev->kernel_name,
  82                         dev->attr.owner, dev->attr.group, dev->attr.mode);
  83                 break;
  84         case CALLOUT:
  85                 dbg_parse("CALLOUT name = '%s', program ='%s', bus = '%s', id = '%s'"
  86                         " owner = '%s', group = '%s', mode = '%#o'",
  87                         dev->attr.name, dev->exec_program, dev->bus, dev->id,
  88                         dev->attr.owner, dev->attr.group, dev->attr.mode);
  89                 break;
  90         default:
  91                 dbg_parse("Unknown type of device!");
  92         }
  93 }
  94
  95 #define copy_var(a, b, var)             \
  96         if (b->var)                     \
  97                 a->var = b->var;
  98
  99 #define copy_string(a, b, var)          \
 100         if (strlen(b->var))             \
 101                 strcpy(a->var, b->var);
 102
 103 static int add_dev(struct config_device *new_dev)
 104 {
 105         struct list_head *tmp;
 106         struct config_device *tmp_dev;
 107
 108         /* loop through the whole list of devices to see if we already have
 109          * this one... */
 110         list_for_each(tmp, &config_device_list) {
 111                 struct config_device *dev = list_entry(tmp, struct config_device, node);
 112                 if (strcmp(dev->attr.name, new_dev->attr.name) == 0) {
 113                         /* the same, copy the new info into this structure */
 114                         copy_var(dev, new_dev, type);
 115                         copy_var(dev, new_dev, attr.mode);
 116                         copy_string(dev, new_dev, bus);
 117                         copy_string(dev, new_dev, sysfs_file);
 118                         copy_string(dev, new_dev, sysfs_value);
 119                         copy_string(dev, new_dev, id);
 120                         copy_string(dev, new_dev, place);
 121                         copy_string(dev, new_dev, kernel_name);
 122                         copy_string(dev, new_dev, attr.owner);
 123                         copy_string(dev, new_dev, attr.group);
 124                         return 0;
 125                 }
 126         }
 127
 128         /* not found, lets create a new structure, and add it to the list */
 129         tmp_dev = malloc(sizeof(*tmp_dev));
 130         if (!tmp_dev)
 131                 return -ENOMEM;
 132         memcpy(tmp_dev, new_dev, sizeof(*tmp_dev));
 133         list_add(&tmp_dev->node, &config_device_list);
 134         //dump_dev(tmp_dev);
 135         return 0;
 136 }
 137
 138 static void dump_dev_list(void)
 139 {
 140         struct list_head *tmp;
 141
 142         list_for_each(tmp, &config_device_list) {
 143                 struct config_device *dev = list_entry(tmp, struct config_device, node);
 144                 dump_dev(dev);
 145         }
 146 }
 147
 148 static int get_value(const char *left, char **orig_string, char **ret_string)
 149 {
 150         char *temp;
 151         char *string = *orig_string;
 152
 153         /* eat any whitespace */
 154         while (isspace(*string))
 155                 ++string;
 156
 157         /* split based on '=' */
 158         temp = strsep(&string, "=");
 159         if (strcasecmp(temp, left) == 0) {
 160                 /* got it, now strip off the '"' */
 161                 while (isspace(*string))
 162                         ++string;
 163                 if (*string == '"')
 164                         ++string;
 165                 temp = strsep(&string, "\"");
 166                 *ret_string = temp;
 167                 *orig_string = string;
 168                 return 0;
 169         }
 170         return -ENODEV;
 171 }
 172
 173 static int get_pair(char **orig_string, char **left, char **right)
 174 {
 175         char *temp;
 176         char *string = *orig_string;
 177
 178         /* eat any whitespace */
 179         while (isspace(*string))
 180                 ++string;
 181
 182         /* split based on '=' */
 183         temp = strsep(&string, "=");
 184         *left = temp;
 185
 186         /* take the right side and strip off the '"' */
 187         while (isspace(*string))
 188                 ++string;
 189         if (*string == '"')
 190                 ++string;
 191         temp = strsep(&string, "\"");
 192         *right = temp;
 193         *orig_string = string;
 194
 195         return 0;
 196 }
 197
 198 static int namedev_init_config(void)
 199 {
 200         char filename[255];
 201         char line[255];
 202         char *temp;
 203         char *temp2;
 204         char *temp3;
 205         FILE *fd;
 206         int retval = 0;
 207         struct config_device dev;
 208
 209         strcpy(filename, UDEV_CONFIG_DIR NAMEDEV_CONFIG_FILE);
 210         dbg("opening %s to read as permissions config", filename);
 211         fd = fopen(filename, "r");
 212         if (fd == NULL) {
 213                 dbg("Can't open %s", filename);
 214                 return -ENODEV;
 215         }
 216
 217         /* loop through the whole file */
 218         while (1) {
 219                 /* get a line */
 220                 temp = fgets(line, sizeof(line), fd);
 221                 if (temp == NULL)
 222                         break;
 223
 224                 dbg_parse("read %s", temp);
 225
 226                 /* eat the whitespace at the beginning of the line */
 227                 while (isspace(*temp))
 228                         ++temp;
 229
 230                 /* no more line? */
 231                 if (*temp == 0x00)
 232                         continue;
 233
 234                 /* see if this is a comment */
 235                 if (*temp == COMMENT_CHARACTER)
 236                         continue;
 237
 238                 memset(&dev, 0x00, sizeof(struct config_device));
 239
 240                 /* parse the line */
 241                 temp2 = strsep(&temp, ",");
 242                 if (strcasecmp(temp2, TYPE_LABEL) == 0) {
 243                         /* label type */
 244                         dev.type = LABEL;
 245
 246                         /* BUS="bus" */
 247                         retval = get_value("BUS", &temp, &temp3);
 248                         if (retval)
 249                                 continue;
 250                         strcpy(dev.bus, temp3);
 251
 252                         /* file="value" */
 253                         temp2 = strsep(&temp, ",");
 254                         retval = get_pair(&temp, &temp2, &temp3);
 255                         if (retval)
 256                                 continue;
 257                         strcpy(dev.sysfs_file, temp2);
 258                         strcpy(dev.sysfs_value, temp3);
 259
 260                         /* NAME="new_name" */
 261                         temp2 = strsep(&temp, ",");
 262                         retval = get_value("NAME", &temp, &temp3);
 263                         if (retval)
 264                                 continue;
 265                         strcpy(dev.attr.name, temp3);
 266
 267                         dbg_parse("LABEL name = '%s', bus = '%s', "
 268                                 "sysfs_file = '%s', sysfs_value = '%s'",
 269                                 dev.attr.name, dev.bus, dev.sysfs_file,
 270                                 dev.sysfs_value);
 271                 }
 272
 273                 if (strcasecmp(temp2, TYPE_NUMBER) == 0) {
 274                         /* number type */
 275                         dev.type = NUMBER;
 276
 277                         /* BUS="bus" */
 278                         retval = get_value("BUS", &temp, &temp3);
 279                         if (retval)
 280                                 continue;
 281                         strcpy(dev.bus, temp3);
 282
 283                         /* ID="id" */
 284                         temp2 = strsep(&temp, ",");
 285                         retval = get_value("id", &temp, &temp3);
 286                         if (retval)
 287                                 continue;
 288                         strcpy(dev.id, temp3);
 289
 290                         /* NAME="new_name" */
 291                         temp2 = strsep(&temp, ",");
 292                         retval = get_value("NAME", &temp, &temp3);
 293                         if (retval)
 294                                 continue;
 295                         strcpy(dev.attr.name, temp3);
 296
 297                         dbg_parse("NUMBER name = '%s', bus = '%s', id = '%s'",
 298                                         dev.attr.name, dev.bus, dev.id);
 299                 }
 300
 301                 if (strcasecmp(temp2, TYPE_TOPOLOGY) == 0) {
 302                         /* number type */
 303                         dev.type = TOPOLOGY;
 304
 305                         /* BUS="bus" */
 306                         retval = get_value("BUS", &temp, &temp3);
 307                         if (retval)
 308                                 continue;
 309                         strcpy(dev.bus, temp3);
 310
 311                         /* PLACE="place" */
 312                         temp2 = strsep(&temp, ",");
 313                         retval = get_value("place", &temp, &temp3);
 314                         if (retval)
 315                                 continue;
 316                         strcpy(dev.place, temp3);
 317
 318                         /* NAME="new_name" */
 319                         temp2 = strsep(&temp, ",");
 320                         retval = get_value("NAME", &temp, &temp3);
 321                         if (retval)
 322                                 continue;
 323                         strcpy(dev.attr.name, temp3);
 324
 325                         dbg_parse("TOPOLOGY name = '%s', bus = '%s', place = '%s'",
 326                                         dev.attr.name, dev.bus, dev.place);
 327                 }
 328
 329                 if (strcasecmp(temp2, TYPE_REPLACE) == 0) {
 330                         /* number type */
 331                         dev.type = REPLACE;
 332
 333                         /* KERNEL="kernel_name" */
 334                         retval = get_value("KERNEL", &temp, &temp3);
 335                         if (retval)
 336                                 continue;
 337                         strcpy(dev.kernel_name, temp3);
 338
 339                         /* NAME="new_name" */
 340                         temp2 = strsep(&temp, ",");
 341                         retval = get_value("NAME", &temp, &temp3);
 342                         if (retval)
 343                                 continue;
 344                         strcpy(dev.attr.name, temp3);
 345                         dbg_parse("REPLACE name = %s, kernel_name = %s",
 346                                         dev.attr.name, dev.kernel_name);
 347                 }
 348                 if (strcasecmp(temp2, TYPE_CALLOUT) == 0) {
 349                         /* number type */
 350                         dev.type = CALLOUT;
 351
 352                         /* PROGRAM="executable" */
 353                         retval = get_value("PROGRAM", &temp, &temp3);
 354                         if (retval)
 355                                 continue;
 356                         strcpy(dev.exec_program, temp3);
 357
 358                         /* BUS="bus" */
 359                         temp2 = strsep(&temp, ",");
 360                         retval = get_value("BUS", &temp, &temp3);
 361                         if (retval)
 362                                 continue;
 363                         strcpy(dev.bus, temp3);
 364
 365                         /* ID="id" */
 366                         temp2 = strsep(&temp, ",");
 367                         retval = get_value("ID", &temp, &temp3);
 368                         if (retval)
 369                                 continue;
 370                         strcpy(dev.id, temp3);
 371
 372                         /* NAME="new_name" */
 373                         temp2 = strsep(&temp, ",");
 374                         retval = get_value("NAME", &temp, &temp3);
 375                         if (retval)
 376                                 continue;
 377                         strcpy(dev.attr.name, temp3);
 378                         dbg_parse("CALLOUT name = %s, program = %s",
 379                                         dev.attr.name, dev.exec_program);
 380                 }
 381
 382                 retval = add_dev(&dev);
 383                 if (retval) {
 384                         dbg("add_dev returned with error %d", retval);
 385                         goto exit;
 386                 }
 387         }
 388
 389 exit:
 390         fclose(fd);
 391         return retval;
 392 }
 393
 394
 395 static int namedev_init_permissions(void)
 396 {
 397         char filename[255];
 398         char line[255];
 399         char *temp;
 400         char *temp2;
 401         FILE *fd;
 402         int retval = 0;
 403         struct config_device dev;
 404
 405         strcpy(filename, UDEV_CONFIG_DIR NAMEDEV_CONFIG_PERMISSION_FILE);
 406         dbg("opening %s to read as permissions config", filename);
 407         fd = fopen(filename, "r");
 408         if (fd == NULL) {
 409                 dbg("Can't open %s", filename);
 410                 return -ENODEV;
 411         }
 412
 413         /* loop through the whole file */
 414         while (1) {
 415                 /* get a line */
 416                 temp = fgets(line, sizeof(line), fd);
 417                 if (temp == NULL)
 418                         break;
 419
 420                 dbg_parse("read %s", temp);
 421
 422                 /* eat the whitespace at the beginning of the line */
 423                 while (isspace(*temp))
 424                         ++temp;
 425
 426                 /* no more line? */
 427                 if (*temp == 0x00)
 428                         continue;
 429
 430                 /* see if this is a comment */
 431                 if (*temp == COMMENT_CHARACTER)
 432                         continue;
 433
 434                 memset(&dev, 0x00, sizeof(dev));
 435
 436                 /* parse the line */
 437                 temp2 = strsep(&temp, ":");
 438                 strncpy(dev.attr.name, temp2, sizeof(dev.attr.name));
 439
 440                 temp2 = strsep(&temp, ":");
 441                 strncpy(dev.attr.owner, temp2, sizeof(dev.attr.owner));
 442
 443                 temp2 = strsep(&temp, ":");
 444                 strncpy(dev.attr.group, temp2, sizeof(dev.attr.owner));
 445
 446                 dev.attr.mode = strtol(temp, NULL, 8);
 447
 448                 dbg_parse("name = %s, owner = %s, group = %s, mode = %#o",
 449                                 dev.attr.name, dev.attr.owner, dev.attr.group,
 450                                 dev.attr.mode);
 451                 retval = add_dev(&dev);
 452                 if (retval) {
 453                         dbg("add_dev returned with error %d", retval);
 454                         goto exit;
 455                 }
 456         }
 457
 458 exit:
 459         fclose(fd);
 460         return retval;
 461 }
 462
 463 static mode_t get_default_mode(struct sysfs_class_device *class_dev)
 464 {
 465         /* just default everyone to rw for the world! */
 466         return 0666;
 467 }
 468
 469
 470 static int exec_callout(struct config_device *dev, char *value, int len)
 471 {
 472         int retval;
 473         int res;
 474         int status;
 475         int fds[2];
 476         pid_t pid;
 477         int value_set = 0;
 478         char buffer[256];
 479
 480         dbg("callout to %s\n", dev->exec_program);
 481         retval = pipe(fds);
 482         if (retval != 0) {
 483                 dbg("pipe failed");
 484                 return -1;
 485         }
 486         pid = fork();
 487         if (pid == -1) {
 488                 dbg("fork failed");
 489                 return -1;
 490         }
 491
 492         if (pid == 0) {
 493                 /*
 494                  * child
 495                  */
 496                 close(STDOUT_FILENO);
 497                 dup(fds[1]);    /* dup write side of pipe to STDOUT */
 498                 retval = execve(dev->exec_program, main_argv, main_envp);
 499                 if (retval != 0) {
 500                         dbg("child execve failed");
 501                         exit(1);
 502                 }
 503                 return -1; /* avoid compiler warning */
 504         } else {
 505                 /*
 506                  * Parent reads from fds[0].
 507                  */
 508                 close(fds[1]);
 509                 retval = 0;
 510                 while (1) {
 511                         res = read(fds[0], buffer, sizeof(buffer) - 1);
 512                         if (res <= 0)
 513                                 break;
 514                         buffer[res] = '\0';
 515                         if (res > len) {
 516                                 dbg("callout len %d too short\n", len);
 517                                 retval = -1;
 518                         }
 519                         if (value_set) {
 520                                 dbg("callout value already set");
 521                                 retval = -1;
 522                         } else {
 523                                 value_set = 1;
 524                                 strncpy(value, buffer, len);
 525                         }
 526                 }
 527                 close(fds[0]);
 528                 res = wait(&status);
 529                 if (res < 0) {
 530                         dbg("wait failed result %d", res);
 531                         retval = -1;
 532                 }
 533
 534                 if (!WIFEXITED(status) || (WEXITSTATUS(status) != 0)) {
 535                         dbg("callout program status 0x%x", status);
 536                         retval = -1;
 537                 }
 538         }
 539         return retval;
 540 }
 541
 542 static int get_attr(struct sysfs_class_device *class_dev, struct device_attr *attr)
 543 {
 544         struct list_head *tmp;
 545         int retval = 0;
 546         int found;
 547
 548         attr->mode = 0;
 549         if (class_dev->sysdevice) {
 550                 dbg_parse("class_dev->sysdevice->directory->path = '%s'", class_dev->sysdevice->directory->path);
 551                 dbg_parse("class_dev->sysdevice->bus_id = '%s'", class_dev->sysdevice->bus_id);
 552         } else {
 553                 dbg_parse("class_dev->name = '%s'", class_dev->name);
 554         }
 555         list_for_each(tmp, &config_device_list) {
 556                 struct config_device *dev = list_entry(tmp, struct config_device, node);
 557                 switch (dev->type) {
 558                 case LABEL:
 559                         {
 560                         char *temp;
 561
 562                         dbg_parse("LABEL: match file '%s' with value '%s'",
 563                                         dev->sysfs_file, dev->sysfs_value);
 564                         /* try to find the attribute in the class device directory */
 565                         temp = sysfs_get_value_from_attributes(class_dev->directory->attributes, dev->sysfs_file);
 566                         if (temp)
 567                                 goto label_found;
 568
 569                         /* look in the class device device directory if present */
 570                         if (class_dev->sysdevice) {
 571                                 temp = sysfs_get_value_from_attributes(class_dev->sysdevice->directory->attributes, dev->sysfs_file);
 572                                 if (temp)
 573                                         goto label_found;
 574                         }
 575
 576                         /* bah, let's go backwards up a level to see if the device is there,
 577                          * as block partitions don't point to the physical device.  Need to fix that
 578                          * up in the kernel...
 579                          */
 580                         if (strstr(class_dev->directory->path, "block")) {
 581                                 dbg_parse("looking at block device...");
 582                                 if (isdigit(class_dev->directory->path[strlen(class_dev->directory->path)-1])) {
 583                                         char path[SYSFS_PATH_MAX];
 584                                         struct sysfs_class_device *class_dev_parent;
 585
 586                                         dbg_parse("really is a partition...");
 587                                         strcpy(path, class_dev->directory->path);
 588                                         temp = strrchr(path, '/');
 589                                         *temp = 0x00;
 590                                         dbg_parse("looking for a class device at '%s'", path);
 591                                         class_dev_parent = sysfs_open_class_device(path);
 592                                         if (class_dev_parent == NULL) {
 593                                                 dbg("sysfs_open_class_device at '%s' failed", path);
 594                                                 continue;
 595                                         }
 596                                         dbg_parse("class_dev_parent->name = %s", class_dev_parent->name);
 597
 598                                         /* try to find the attribute in the class device directory */
 599                                         temp = sysfs_get_value_from_attributes(class_dev_parent->directory->attributes, dev->sysfs_file);
 600                                         if (temp) {
 601                                                 //sysfs_close_class_device(class_dev_parent);
 602                                                 goto label_found;
 603                                         }
 604
 605                                         /* look in the class device device directory if present */
 606                                         if (class_dev_parent->sysdevice) {
 607                                                 temp = sysfs_get_value_from_attributes(class_dev_parent->sysdevice->directory->attributes, dev->sysfs_file);
 608                                                 if (temp) {
 609                                                         // sysfs_close_class_device(class_dev_parent);
 610                                                         goto label_found;
 611                                                 }
 612                                         }
 613
 614                                 }
 615                         }
 616                         continue;
 617
 618 label_found:
 619                         temp[strlen(temp)-1] = 0x00;
 620                         dbg_parse("file '%s' found with value '%s' compare with '%s'", dev->sysfs_file, temp, dev->sysfs_value);
 621                         if (strcmp(dev->sysfs_value, temp) != 0)
 622                                 continue;
 623
 624                         strcpy(attr->name, dev->attr.name);
 625                         if (isdigit(class_dev->directory->path[strlen(class_dev->directory->path)-1])) {
 626                                 temp[0] = class_dev->directory->path[strlen(class_dev->directory->path)-1];
 627                                 temp[1] = 0x00;
 628                                 strcat(attr->name, temp);
 629                         }
 630                         if (dev->attr.mode != 0) {
 631                                 attr->mode = dev->attr.mode;
 632                                 strcpy(attr->owner, dev->attr.owner);
 633                                 strcpy(attr->group, dev->attr.group);
 634                         }
 635                         dbg_parse("file '%s' with value '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
 636                                 dev->sysfs_file, dev->sysfs_value, attr->name,
 637                                 dev->attr.owner, dev->attr.group, dev->attr.mode);
 638                         goto done;
 639                         break;
 640                         }
 641                 case NUMBER:
 642                         {
 643                         char path[SYSFS_PATH_MAX];
 644                         char *temp;
 645
 646                         found = 0;
 647                         if (!class_dev->sysdevice)
 648                                 continue;
 649                         strcpy(path, class_dev->sysdevice->directory->path);
 650                         temp = strrchr(path, '/');
 651                         dbg_parse("NUMBER path = '%s'", path);
 652                         dbg_parse("NUMBER temp = '%s' id = '%s'", temp, dev->id);
 653                         if (strstr(temp, dev->id) != NULL) {
 654                                 found = 1;
 655                         } else {
 656                                 *temp = 0x00;
 657                                 temp = strrchr(path, '/');
 658                                 dbg_parse("NUMBERY temp = '%s' id = '%s'", temp, dev->id);
 659                                 if (strstr(temp, dev->id) != NULL)
 660                                         found = 1;
 661                         }
 662                         if (!found)
 663                                 continue;
 664
 665                         strcpy(attr->name, dev->attr.name);
 666                         if (dev->attr.mode != 0) {
 667                                 attr->mode = dev->attr.mode;
 668                                 strcpy(attr->owner, dev->attr.owner);
 669                                 strcpy(attr->group, dev->attr.group);
 670                         }
 671                         dbg_parse("device id '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
 672                                 dev->id, attr->name,
 673                                 dev->attr.owner, dev->attr.group, dev->attr.mode);
 674                         goto done;
 675                         break;
 676                         }
 677                 case TOPOLOGY:
 678                         {
 679                         char path[SYSFS_PATH_MAX];
 680                         char *temp;
 681
 682                         if (!class_dev->sysdevice)
 683                                 continue;
 684                         found = 0;
 685                         strcpy(path, class_dev->sysdevice->directory->path);
 686                         temp = strrchr(path, '/');
 687                         dbg_parse("TOPOLOGY path = '%s'", path);
 688                         dbg_parse("TOPOLOGY temp = '%s' place = '%s'", temp, dev->place);
 689                         if (strstr(temp, dev->place) != NULL) {
 690                                 found = 1;
 691                         } else {
 692                                 *temp = 0x00;
 693                                 temp = strrchr(path, '/');
 694                                 dbg_parse("TOPOLOGY temp = '%s' place = '%s'", temp, dev->place);
 695                                 if (strstr(temp, dev->place) != NULL)
 696                                         found = 1;
 697                         }
 698                         if (!found)
 699                                 continue;
 700
 701                         strcpy(attr->name, dev->attr.name);
 702                         if (dev->attr.mode != 0) {
 703                                 attr->mode = dev->attr.mode;
 704                                 strcpy(attr->owner, dev->attr.owner);
 705                                 strcpy(attr->group, dev->attr.group);
 706                         }
 707                         dbg_parse("device at '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
 708                                 dev->place, attr->name,
 709                                 dev->attr.owner, dev->attr.group, dev->attr.mode);
 710                         goto done;
 711                         break;
 712                         }
 713                 case CALLOUT:
 714                         {
 715                         char value[ID_SIZE];
 716
 717                         if (exec_callout(dev, value, sizeof(value)))
 718                                 continue;
 719                         if (strncmp(value, dev->id, sizeof(value)) != 0)
 720                                 continue;
 721                         strcpy(attr->name, dev->attr.name);
 722                         if (dev->attr.mode != 0) {
 723                                 attr->mode = dev->attr.mode;
 724                                 strcpy(attr->owner, dev->attr.owner);
 725                                 strcpy(attr->group, dev->attr.group);
 726                         }
 727                         dbg_parse("device callout '%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
 728                                 dev->id, attr->name,
 729                                 dev->attr.owner, dev->attr.group, dev->attr.mode);
 730                         goto done;
 731                         break;
 732                         }
 733                 case REPLACE:
 734                         if (strcmp(dev->kernel_name, class_dev->name) != 0)
 735                                 continue;
 736                         strcpy(attr->name, dev->attr.name);
 737                         if (dev->attr.mode != 0) {
 738                                 attr->mode = dev->attr.mode;
 739                                 strcpy(attr->owner, dev->attr.owner);
 740                                 strcpy(attr->group, dev->attr.group);
 741                         }
 742                         dbg_parse("'%s' becomes '%s' - owner = %s, group = %s, mode = %#o",
 743                                 dev->kernel_name, attr->name,
 744                                 dev->attr.owner, dev->attr.group, dev->attr.mode);
 745                         goto done;
 746                         break;
 747                 case KERNEL_NAME:
 748                         break;
 749                 default:
 750                         dbg_parse("Unknown type of device '%d'", dev->type);
 751                         break;
 752                 }
 753         }
 754         strcpy(attr->name, class_dev->name);
 755
 756 done:
 757         /* mode was never set above */
 758         if (!attr->mode) {
 759                 attr->mode = get_default_mode(class_dev);
 760                 attr->owner[0] = 0x00;
 761                 attr->group[0] = 0x00;
 762         }
 763         return retval;
 764 }
 765
 766 int namedev_name_device(struct sysfs_class_device *class_dev, struct device_attr *attr)
 767 {
 768         int retval;
 769
 770         retval = get_attr(class_dev, attr);
 771         if (retval)
 772                 dbg("get_attr failed");
 773
 774         return retval;
 775 }
 776
 777 int namedev_init(void)
 778 {
 779         int retval;
 780
 781         retval = namedev_init_config();
 782         if (retval)
 783                 return retval;
 784
 785         retval = namedev_init_permissions();
 786         if (retval)
 787                 return retval;
 788
 789         dump_dev_list();
 790         return retval;
 791 }
 792
 793