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 #include <stddef.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <stdio.h>
  28 #include <fcntl.h>
  29 #include <ctype.h>
  30 #include <unistd.h>
  31 #include <errno.h>
  32 #include <sys/wait.h>
  33
  34 #include "list.h"
  35 #include "udev.h"
  36 #include "udev_version.h"
  37 #include "namedev.h"
  38 #include "libsysfs/libsysfs.h"
  39 #include "klibc_fixups.h"
  40
  41 LIST_HEAD(config_device_list);
  42 LIST_HEAD(perm_device_list);
  43
  44 /* compare string with pattern (supports * ? [0-9] [!A-Z]) */
  45 static int strcmp_pattern(const char *p, const char *s)
  46 {
  47         if (*s == '\0') {
  48                 while (*p == '*')
  49                         p++;
  50                 return (*p != '\0');
  51         }
  52         switch (*p) {
  53         case '[':
  54                 {
  55                         int not = 0;
  56                         p++;
  57                         if (*p == '!') {
  58                                 not = 1;
  59                                 p++;
  60                         }
  61                         while (*p && (*p != ']')) {
  62                                 int match = 0;
  63                                 if (p[1] == '-') {
  64                                         if ((*s >= *p) && (*s <= p[2]))
  65                                                 match = 1;
  66                                         p += 3;
  67                                 } else {
  68                                         match = (*p == *s);
  69                                         p++;
  70                                 }
  71                                 if (match ^ not) {
  72                                         while (*p && (*p != ']'))
  73                                                 p++;
  74                                         return strcmp_pattern(p+1, s+1);
  75                                 }
  76                         }
  77                 }
  78                 break;
  79         case '*':
  80                 if (strcmp_pattern(p, s+1))
  81                         return strcmp_pattern(p+1, s);
  82                 return 0;
  83         case '\0':
  84                 if (*s == '\0') {
  85                         return 0;
  86                 }
  87                 break;
  88         default:
  89                 if ((*p == *s) || (*p == '?'))
  90                         return strcmp_pattern(p+1, s+1);
  91                 break;
  92         }
  93         return 1;
  94 }
  95
  96 #define copy_var(a, b, var)             \
  97         if (b->var)                     \
  98                 a->var = b->var;
  99
 100 #define copy_string(a, b, var)          \
 101         if (strlen(b->var))             \
 102                 strcpy(a->var, b->var);
 103
 104 int add_config_dev(struct config_device *new_dev)
 105 {
 106         struct list_head *tmp;
 107         struct config_device *tmp_dev;
 108
 109         /* update the values if we already have the device */
 110         list_for_each(tmp, &config_device_list) {
 111                 struct config_device *dev = list_entry(tmp, struct config_device, node);
 112                 if (strcmp_pattern(new_dev->name, dev->name))
 113                         continue;
 114                 if (strncmp(dev->bus, new_dev->bus, sizeof(dev->name)))
 115                         continue;
 116                 copy_var(dev, new_dev, type);
 117                 copy_string(dev, new_dev, bus);
 118                 copy_string(dev, new_dev, sysfs_file);
 119                 copy_string(dev, new_dev, sysfs_value);
 120                 copy_string(dev, new_dev, id);
 121                 copy_string(dev, new_dev, place);
 122                 copy_string(dev, new_dev, kernel_name);
 123                 copy_string(dev, new_dev, exec_program);
 124                 copy_string(dev, new_dev, symlink);
 125                 return 0;
 126         }
 127
 128         /* not found, add new structure to the device 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_tail(&tmp_dev->node, &config_device_list);
 134         //dump_config_dev(tmp_dev);
 135         return 0;
 136 }
 137
 138 int add_perm_dev(struct perm_device *new_dev)
 139 {
 140         struct list_head *tmp;
 141         struct perm_device *tmp_dev;
 142
 143         /* update the values if we already have the device */
 144         list_for_each(tmp, &perm_device_list) {
 145                 struct perm_device *dev = list_entry(tmp, struct perm_device, node);
 146                 if (strcmp_pattern(new_dev->name, dev->name))
 147                         continue;
 148                 copy_var(dev, new_dev, mode);
 149                 copy_string(dev, new_dev, owner);
 150                 copy_string(dev, new_dev, group);
 151                 return 0;
 152         }
 153
 154         /* not found, add new structure to the perm list */
 155         tmp_dev = malloc(sizeof(*tmp_dev));
 156         if (!tmp_dev)
 157                 return -ENOMEM;
 158         memcpy(tmp_dev, new_dev, sizeof(*tmp_dev));
 159         list_add_tail(&tmp_dev->node, &perm_device_list);
 160         //dump_perm_dev(tmp_dev);
 161         return 0;
 162 }
 163
 164 static struct perm_device *find_perm(char *name)
 165 {
 166         struct list_head *tmp;
 167         struct perm_device *perm = NULL;
 168
 169         list_for_each(tmp, &perm_device_list) {
 170                 perm = list_entry(tmp, struct perm_device, node);
 171                 if (strcmp_pattern(perm->name, name))
 172                         continue;
 173                 return perm;
 174         }
 175         return NULL;
 176 }
 177
 178 static mode_t get_default_mode(struct sysfs_class_device *class_dev)
 179 {
 180         mode_t mode = 0600;     /* default to owner rw only */
 181
 182         if (strlen(default_mode_str) != 0) {
 183                 mode = strtol(default_mode_str, NULL, 8);
 184         }
 185         return mode;
 186 }
 187
 188 static void build_kernel_number(struct sysfs_class_device *class_dev, struct udevice *udev)
 189 {
 190         char *dig;
 191
 192         /* FIXME, figure out how to handle stuff like sdaj which will not work right now. */
 193         dig = class_dev->name + strlen(class_dev->name);
 194         while (isdigit(*(dig-1)))
 195                 dig--;
 196         strfieldcpy(udev->kernel_number, dig);
 197         dbg("kernel_number='%s'", udev->kernel_number);
 198 }
 199
 200 static void apply_format(struct udevice *udev, unsigned char *string)
 201 {
 202         char name[NAME_SIZE];
 203         char temp[NAME_SIZE];
 204         char *tail;
 205         char *pos;
 206         char *pos2;
 207         char *pos3;
 208         int num;
 209
 210         while (1) {
 211                 num = 0;
 212                 pos = strchr(string, '%');
 213
 214                 if (pos) {
 215                         *pos = '\0';
 216                         tail = pos+1;
 217                         if (isdigit(tail[0])) {
 218                                 num = (int) strtoul(&pos[1], &tail, 10);
 219                                 if (tail == NULL) {
 220                                         dbg("format parsing error '%s'", pos+1);
 221                                         break;
 222                                 }
 223                         }
 224                         strfieldcpy(name, tail+1);
 225
 226                         switch (tail[0]) {
 227                         case 'b':
 228                                 if (strlen(udev->bus_id) == 0)
 229                                         break;
 230                                 strcat(pos, udev->bus_id);
 231                                 dbg("substitute bus_id '%s'", udev->bus_id);
 232                                 break;
 233                         case 'n':
 234                                 if (strlen(udev->kernel_number) == 0)
 235                                         break;
 236                                 strcat(pos, udev->kernel_number);
 237                                 dbg("substitute kernel number '%s'", udev->kernel_number);
 238                                 break;
 239                         case 'D':
 240                                 if (strlen(udev->kernel_number) == 0) {
 241                                         strcat(pos, "disc");
 242                                         break;
 243                                 }
 244                                 strcat(pos, "part");
 245                                 strcat(pos, udev->kernel_number);
 246                                 dbg("substitute kernel number '%s'", udev->kernel_number);
 247                                 break;
 248                         case 'm':
 249                                 sprintf(pos, "%u", udev->minor);
 250                                 dbg("substitute minor number '%u'", udev->minor);
 251                                 break;
 252                         case 'M':
 253                                 sprintf(pos, "%u", udev->major);
 254                                 dbg("substitute major number '%u'", udev->major);
 255                                 break;
 256                         case 'c':
 257                                 if (strlen(udev->callout_value) == 0)
 258                                         break;
 259                                 if (num) {
 260                                         /* get part of return string */
 261                                         strncpy(temp, udev->callout_value, sizeof(temp));
 262                                         pos2 = temp;
 263                                         while (num) {
 264                                                 num--;
 265                                                 pos3 = strsep(&pos2, " ");
 266                                                 if (pos3 == NULL) {
 267                                                         dbg("requested part of callout string not found");
 268                                                         break;
 269                                                 }
 270                                         }
 271                                         strcat(pos, pos3);
 272                                         dbg("substitute partial callout output '%s'", pos3);
 273                                 } else {
 274                                         strcat(pos, udev->callout_value);
 275                                         dbg("substitute callout output '%s'", udev->callout_value);
 276                                 }
 277                                 break;
 278                         default:
 279                                 dbg("unknown substitution type '%%%c'", pos[1]);
 280                                 break;
 281                         }
 282                         strcat(string, name);
 283                 } else
 284                         break;
 285         }
 286 }
 287
 288
 289 static int exec_callout(struct config_device *dev, char *value, int len)
 290 {
 291         int retval;
 292         int res;
 293         int status;
 294         int fds[2];
 295         pid_t pid;
 296         int value_set = 0;
 297         char buffer[256];
 298         char *pos;
 299         char *args[CALLOUT_MAXARG];
 300         int i;
 301
 302         dbg("callout to '%s'", dev->exec_program);
 303         retval = pipe(fds);
 304         if (retval != 0) {
 305                 dbg("pipe failed");
 306                 return -1;
 307         }
 308         pid = fork();
 309         if (pid == -1) {
 310                 dbg("fork failed");
 311                 return -1;
 312         }
 313
 314         if (pid == 0) {
 315                 /* child */
 316                 close(STDOUT_FILENO);
 317                 dup(fds[1]);    /* dup write side of pipe to STDOUT */
 318                 if (strchr(dev->exec_program, ' ')) {
 319                         /* callout with arguments */
 320                         pos = dev->exec_program;
 321                         for (i=0; i < CALLOUT_MAXARG-1; i++) {
 322                                 args[i] = strsep(&pos, " ");
 323                                 if (args[i] == NULL)
 324                                         break;
 325                         }
 326                         if (args[i]) {
 327                                 dbg("too many args - %d", i);
 328                                 args[i] = NULL;
 329                         }
 330                         retval = execve(args[0], args, main_envp);
 331                 } else {
 332                         retval = execve(dev->exec_program, main_argv, main_envp);
 333                 }
 334                 if (retval != 0) {
 335                         dbg("child execve failed");
 336                         exit(1);
 337                 }
 338                 return -1; /* avoid compiler warning */
 339         } else {
 340                 /* parent reads from fds[0] */
 341                 close(fds[1]);
 342                 retval = 0;
 343                 while (1) {
 344                         res = read(fds[0], buffer, sizeof(buffer) - 1);
 345                         if (res <= 0)
 346                                 break;
 347                         buffer[res] = '\0';
 348                         if (res > len) {
 349                                 dbg("callout len %d too short", len);
 350                                 retval = -1;
 351                         }
 352                         if (value_set) {
 353                                 dbg("callout value already set");
 354                                 retval = -1;
 355                         } else {
 356                                 value_set = 1;
 357                                 strncpy(value, buffer, len);
 358                                 pos = value + strlen(value)-1;
 359                                 if (pos[0] == '\n')
 360                                 pos[0] = '\0';
 361                                 dbg("callout returned '%s'", value);
 362                         }
 363                 }
 364                 close(fds[0]);
 365                 res = wait(&status);
 366                 if (res < 0) {
 367                         dbg("wait failed result %d", res);
 368                         retval = -1;
 369                 }
 370
 371 #ifndef __KLIBC__
 372                 if (!WIFEXITED(status) || (WEXITSTATUS(status) != 0)) {
 373                         dbg("callout program status 0x%x", status);
 374                         retval = -1;
 375                 }
 376 #endif
 377         }
 378         return retval;
 379 }
 380
 381 static int do_callout(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
 382 {
 383         struct config_device *dev;
 384         struct list_head *tmp;
 385
 386         list_for_each(tmp, &config_device_list) {
 387                 dev = list_entry(tmp, struct config_device, node);
 388                 if (dev->type != CALLOUT)
 389                         continue;
 390
 391                 if (sysfs_device) {
 392                         dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
 393                         if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
 394                                 continue;
 395                 }
 396
 397                 /* substitute anything that needs to be in the program name */
 398                 apply_format(udev, dev->exec_program);
 399                 if (exec_callout(dev, udev->callout_value, NAME_SIZE))
 400                         continue;
 401                 if (strcmp_pattern(dev->id, udev->callout_value) != 0)
 402                         continue;
 403                 strfieldcpy(udev->name, dev->name);
 404                 strfieldcpy(udev->symlink, dev->symlink);
 405                 dbg("callout returned matching value '%s', '%s' becomes '%s'",
 406                     dev->id, class_dev->name, udev->name);
 407                 return 0;
 408         }
 409         return -ENODEV;
 410 }
 411
 412 static int do_label(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
 413 {
 414         struct sysfs_attribute *tmpattr = NULL;
 415         struct config_device *dev;
 416         struct list_head *tmp;
 417         char *c;
 418
 419         list_for_each(tmp, &config_device_list) {
 420                 dev = list_entry(tmp, struct config_device, node);
 421                 if (dev->type != LABEL)
 422                         continue;
 423
 424                 if (sysfs_device) {
 425                         dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
 426                         if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
 427                                 continue;
 428                 }
 429
 430                 dbg("look for device attribute '%s'", dev->sysfs_file);
 431                 /* try to find the attribute in the class device directory */
 432                 tmpattr = sysfs_get_classdev_attr(class_dev, dev->sysfs_file);
 433                 if (tmpattr)
 434                         goto label_found;
 435
 436                 /* look in the class device directory if present */
 437                 if (sysfs_device) {
 438                         tmpattr = sysfs_get_device_attr(sysfs_device, dev->sysfs_file);
 439                         if (tmpattr)
 440                                 goto label_found;
 441                 }
 442
 443                 continue;
 444
 445 label_found:
 446                 c = tmpattr->value + strlen(tmpattr->value)-1;
 447                 if (*c == '\n')
 448                         *c = 0x00;
 449                 dbg("compare attribute '%s' value '%s' with '%s'",
 450                           dev->sysfs_file, tmpattr->value, dev->sysfs_value);
 451                 if (strcmp_pattern(dev->sysfs_value, tmpattr->value) != 0)
 452                         continue;
 453
 454                 strfieldcpy(udev->name, dev->name);
 455                 strfieldcpy(udev->symlink, dev->symlink);
 456                 dbg("found matching attribute '%s', '%s' becomes '%s' ",
 457                     dev->sysfs_file, class_dev->name, udev->name);
 458
 459                 return 0;
 460         }
 461         return -ENODEV;
 462 }
 463
 464 static int do_number(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
 465 {
 466         struct config_device *dev;
 467         struct list_head *tmp;
 468         char path[SYSFS_PATH_MAX];
 469         int found;
 470         char *temp = NULL;
 471
 472         /* we have to have a sysfs device for NUMBER to work */
 473         if (!sysfs_device)
 474                 return -ENODEV;
 475
 476         list_for_each(tmp, &config_device_list) {
 477                 dev = list_entry(tmp, struct config_device, node);
 478                 if (dev->type != NUMBER)
 479                         continue;
 480
 481                 dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
 482                 if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
 483                         continue;
 484
 485                 found = 0;
 486                 strfieldcpy(path, sysfs_device->path);
 487                 temp = strrchr(path, '/');
 488                 dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
 489                 if (strstr(temp, dev->id) != NULL) {
 490                         found = 1;
 491                 } else {
 492                         *temp = 0x00;
 493                         temp = strrchr(path, '/');
 494                         dbg("search '%s' in '%s', path='%s'", dev->id, temp, path);
 495                         if (strstr(temp, dev->id) != NULL)
 496                                 found = 1;
 497                 }
 498                 if (!found)
 499                         continue;
 500                 strfieldcpy(udev->name, dev->name);
 501                 strfieldcpy(udev->symlink, dev->symlink);
 502                 dbg("found matching id '%s', '%s' becomes '%s'",
 503                     dev->id, class_dev->name, udev->name);
 504                 return 0;
 505         }
 506         return -ENODEV;
 507 }
 508
 509 static int do_topology(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
 510 {
 511         struct config_device *dev;
 512         struct list_head *tmp;
 513         char path[SYSFS_PATH_MAX];
 514         int found;
 515         char *temp = NULL;
 516
 517         /* we have to have a sysfs device for TOPOLOGY to work */
 518         if (!sysfs_device)
 519                 return -ENODEV;
 520
 521         list_for_each(tmp, &config_device_list) {
 522                 dev = list_entry(tmp, struct config_device, node);
 523                 if (dev->type != TOPOLOGY)
 524                         continue;
 525
 526                 dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
 527                 if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
 528                         continue;
 529
 530                 found = 0;
 531                 strfieldcpy(path, sysfs_device->path);
 532                 temp = strrchr(path, '/');
 533                 dbg("search '%s' in '%s', path='%s'", dev->place, temp, path);
 534                 if (strstr(temp, dev->place) != NULL) {
 535                         found = 1;
 536                 } else {
 537                         *temp = 0x00;
 538                         temp = strrchr(path, '/');
 539                         dbg("search '%s' in '%s', path='%s'", dev->place, temp, path);
 540                         if (strstr(temp, dev->place) != NULL)
 541                                 found = 1;
 542                 }
 543                 if (!found)
 544                         continue;
 545
 546                 strfieldcpy(udev->name, dev->name);
 547                 strfieldcpy(udev->symlink, dev->symlink);
 548                 dbg("found matching place '%s', '%s' becomes '%s'",
 549                     dev->place, class_dev->name, udev->name);
 550                 return 0;
 551         }
 552         return -ENODEV;
 553 }
 554
 555 static int do_replace(struct sysfs_class_device *class_dev, struct udevice *udev, struct sysfs_device *sysfs_device)
 556 {
 557         struct config_device *dev;
 558         struct list_head *tmp;
 559
 560         list_for_each(tmp, &config_device_list) {
 561                 dev = list_entry(tmp, struct config_device, node);
 562                 if (dev->type != REPLACE)
 563                         continue;
 564
 565                 dbg("compare name '%s' with '%s'", dev->kernel_name, class_dev->name);
 566                 if (strcmp_pattern(dev->kernel_name, class_dev->name) != 0)
 567                         continue;
 568
 569                 strfieldcpy(udev->name, dev->name);
 570                 strfieldcpy(udev->symlink, dev->symlink);
 571                 dbg("found name, '%s' becomes '%s'", dev->kernel_name, udev->name);
 572
 573                 return 0;
 574         }
 575         return -ENODEV;
 576 }
 577
 578 static void do_kernelname(struct sysfs_class_device *class_dev, struct udevice *udev)
 579 {
 580         /* heh, this is pretty simple... */
 581         strfieldcpy(udev->name, class_dev->name);
 582 }
 583
 584 int namedev_name_device(struct sysfs_class_device *class_dev, struct udevice *udev)
 585 {
 586         struct sysfs_device *sysfs_device = NULL;
 587         struct sysfs_class_device *class_dev_parent = NULL;
 588         int retval = 0;
 589         struct perm_device *perm;
 590
 591         udev->mode = 0;
 592
 593         /* find the sysfs_device for this class device */
 594         /* Wouldn't it really be nice if libsysfs could do this for us? */
 595         sysfs_device = sysfs_get_classdev_device(class_dev);
 596         if (sysfs_device == NULL) {
 597                 /* bah, let's go backwards up a level to see if the device is there,
 598                  * as block partitions don't point to the physical device.  Need to fix that
 599                  * up in the kernel...
 600                  */
 601                 if (strcmp(class_dev->classname, SYSFS_BLOCK_NAME) == 0) {
 602                         dbg("looking at block device");
 603                         if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
 604                                 dbg("really is a partition");
 605                                 class_dev_parent = sysfs_get_classdev_parent
 606                                                                    (class_dev);
 607                                 if (class_dev_parent == NULL) {
 608                                         dbg("sysfs_get_classdev_parent for class device '%s' failed", class_dev->name);
 609                                 } else {
 610                                         dbg("class_dev_parent->name='%s'", class_dev_parent->name);
 611                                         sysfs_device = sysfs_get_classdev_device(class_dev_parent);
 612                                 }
 613                         }
 614                 }
 615         }
 616
 617         if (sysfs_device) {
 618                 dbg("sysfs_device->path='%s'", sysfs_device->path);
 619                 dbg("sysfs_device->bus_id='%s'", sysfs_device->bus_id);
 620                 dbg("sysfs_device->bus='%s'", sysfs_device->bus);
 621                 strfieldcpy(udev->bus_id, sysfs_device->bus_id);
 622         } else {
 623                 dbg("class_dev->name = '%s'", class_dev->name);
 624         }
 625
 626         build_kernel_number(class_dev, udev);
 627
 628         /* rules are looked at in priority order */
 629         retval = do_callout(class_dev, udev, sysfs_device);
 630         if (retval == 0)
 631                 goto found;
 632
 633         retval = do_label(class_dev, udev, sysfs_device);
 634         if (retval == 0)
 635                 goto found;
 636
 637         retval = do_number(class_dev, udev, sysfs_device);
 638         if (retval == 0)
 639                 goto found;
 640
 641         retval = do_topology(class_dev, udev, sysfs_device);
 642         if (retval == 0)
 643                 goto found;
 644
 645         retval = do_replace(class_dev, udev, sysfs_device);
 646         if (retval == 0)
 647                 goto found;
 648
 649         do_kernelname(class_dev, udev);
 650         goto done;
 651
 652 found:
 653         /* substitute placeholder */
 654         apply_format(udev, udev->name);
 655         apply_format(udev, udev->symlink);
 656
 657 done:
 658         perm = find_perm(udev->name);
 659         if (perm) {
 660                 udev->mode = perm->mode;
 661                 strfieldcpy(udev->owner, perm->owner);
 662                 strfieldcpy(udev->group, perm->group);
 663         } else {
 664                 /* no matching perms found :( */
 665                 udev->mode = get_default_mode(class_dev);
 666                 udev->owner[0] = 0x00;
 667                 udev->group[0] = 0x00;
 668         }
 669         dbg("name, '%s' is going to have owner='%s', group='%s', mode = %#o",
 670             udev->name, udev->owner, udev->group, udev->mode);
 671
 672         return 0;
 673 }
 674
 675 int namedev_init(void)
 676 {
 677         int retval;
 678
 679         retval = namedev_init_rules();
 680         if (retval)
 681                 return retval;
 682
 683         retval = namedev_init_permissions();
 684         if (retval)
 685                 return retval;
 686
 687         dump_config_dev_list();
 688         dump_perm_dev_list();
 689         return retval;
 690 }