mount.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <stdlib.h>
   4 #include <unistd.h>
   5 #include <sys/stat.h>
   6 #include <sys/types.h>
   7 #include <fcntl.h>
   8 #include <sys/ioctl.h>
   9 #include <linux/hdreg.h>
  10 #include <scsi/sg.h>
  11 #include <dirent.h>
  12 #include <sys/wait.h>
  13 #include <sys/inotify.h>
  14 #include <sys/stat.h>
  15 #include <sys/types.h>
  16 #include <glob.h>
  17 #include <libgen.h>
  18 #include <poll.h>
  19 #include <dirent.h>
  20 #include <syslog.h>
  21
  22 #include "include/log.h"
  23 #include "include/list.h"
  24 #include "include/sys.h"
  25 #include "include/signal.h"
  26 #include "include/timer.h"
  27 #include "include/autofs.h"
  28 #include "include/ucix.h"
  29 #include "include/fs.h"
  30 #include "include/mount.h"
  31
  32 int mount_new(char *path, char *dev);
  33
  34 static struct list_head mounts;
  35
  36 struct mount {
  37         struct list_head list;
  38         char name[64];
  39         char dev[64];
  40         char serial[64];
  41         char vendor[64];
  42         char model[64];
  43         char rev[64];
  44         int mounted;
  45         int ignore;
  46         char size[64];
  47         char sector_size[64];
  48         int fs;
  49 };
  50
  51 static char *fs_names[] = {
  52         "",
  53         "",
  54         "mbr",
  55         "ext2",
  56         "ext3",
  57         "fat",
  58         "hfsplus",
  59         "",
  60         "ntfs",
  61         "",
  62         "exfat",
  63         "ext4",
  64         "hfsplusjournal"
  65 };
  66
  67 #define MAX_MOUNTED             32
  68 #define MAX_MOUNT_NAME  32
  69
  70 static char mounted[MAX_MOUNTED][3][MAX_MOUNT_NAME];
  71 static int mounted_count = 0;
  72 extern char uci_path[32];
  73
  74 static void mount_dump_uci_state(void)
  75 {
  76         struct uci_context *ctx;
  77         struct list_head *p;
  78         char mountd[] = {"mountd"};
  79         char type[] = {"mountd_disc"};
  80         int mounted = 0;
  81         unsigned long long int size = 0;
  82         unlink("/var/state/mountd");
  83         ctx = ucix_init("mountd");
  84         uci_set_savedir(ctx, "/var/state/");
  85         ucix_add_option_int(ctx, mountd, mountd, "count", list_count(&mounts));
  86         list_for_each(p, &mounts)
  87         {
  88                 struct mount *q = container_of(p, struct mount, list);
  89                 char t[64];
  90                 if(q->fs == EXTENDED)
  91                         continue;
  92                 ucix_add_section(ctx, mountd, q->serial, type);
  93                 strcpy(t, q->dev);
  94                 t[3] = '\0';
  95                 ucix_add_option(ctx, mountd, q->serial, "disc", t);
  96                 ucix_add_option(ctx, mountd, q->serial, "sector_size", q->sector_size);
  97                 snprintf(t, 64, "part%dmounted", atoi(&q->dev[3]));
  98                 ucix_add_option(ctx, mountd, q->serial, t, (q->mounted)?("1"):("0"));
  99                 ucix_add_option(ctx, mountd, q->serial, "vendor", q->vendor);
 100                 ucix_add_option(ctx, mountd, q->serial, "model", q->model);
 101                 ucix_add_option(ctx, mountd, q->serial, "rev", q->rev);
 102                 snprintf(t, 64, "size%d", atoi(&q->dev[3]));
 103                 ucix_add_option(ctx, mountd, q->serial, t, q->size);
 104                 if(q->fs > MBR && q->fs <= LASTFS)
 105                 {
 106                         snprintf(t, 64, "fs%d", atoi(&q->dev[3]));
 107                         ucix_add_option(ctx, mountd, q->serial, t, fs_names[q->fs]);
 108                 }
 109                 if(q->mounted)
 110                         mounted++;
 111                 if((!q->ignore) && q->size && q->sector_size)
 112                         size = size + (((unsigned long long int)atoi(q->size)) * ((unsigned long long int)atoi(q->sector_size)));
 113         }
 114         ucix_add_option_int(ctx, mountd, mountd, "mounted", mounted);
 115         ucix_add_option_int(ctx, mountd, mountd, "total", size);
 116         system_printf("echo -n %llu > /tmp/run/mountd_size", size);
 117         ucix_save_state(ctx, "mountd");
 118         ucix_cleanup(ctx);
 119 }
 120
 121 static struct mount* mount_find(char *name, char *dev)
 122 {
 123         struct list_head *p;
 124         list_for_each(p, &mounts)
 125         {
 126                 struct mount *q = container_of(p, struct mount, list);
 127                 if(name)
 128                         if(!strcmp(q->name, name))
 129                                 return q;
 130                 if(dev)
 131                         if(!strcmp(q->dev, dev))
 132                                 return q;
 133         }
 134         return 0;
 135 }
 136
 137 static void mount_add_list(char *name, char *dev, char *serial,
 138         char *vendor, char *model, char *rev, int ignore, char *size, char *sector_size, int fs)
 139 {
 140         struct mount *mount;
 141         char tmp[64], tmp2[64];
 142
 143         mount  = malloc(sizeof(struct mount));
 144         INIT_LIST_HEAD(&mount->list);
 145         strncpy(mount->vendor, vendor, 64);
 146         strncpy(mount->model, model, 64);
 147         strncpy(mount->rev, rev, 64);
 148         strncpy(mount->name, name, 64);
 149         strncpy(mount->dev, dev, 64);
 150         strncpy(mount->serial, serial, 64);
 151         strncpy(mount->size, size, 64);
 152         strncpy(mount->sector_size, sector_size, 64);
 153         mount->ignore = ignore;
 154         mount->mounted = 0;
 155         mount->fs = fs;
 156         list_add(&mount->list, &mounts);
 157         if (!mount->ignore)
 158         {
 159                 log_printf("new mount : %s -> %s (%s)\n", name, dev, fs_names[mount->fs]);
 160                 snprintf(tmp, 64, "%s%s", uci_path, name);
 161                 snprintf(tmp2, 64, "/tmp/run/mountd/%s", dev);
 162                 symlink(tmp2, tmp);
 163                 mount_new("/tmp/run/mountd/", dev);
 164                 system_printf("ACTION=add DEVICE=%s NAME=%s /sbin/hotplug-call mount", dev, name);
 165         }
 166 }
 167
 168 static int mount_check_disc(char *disc)
 169 {
 170         FILE *fp = fopen("/proc/mounts", "r");
 171         char tmp[256];
 172         int avail = -1;
 173         if(!fp)
 174         {
 175                 log_printf("error reading /proc/mounts");
 176                 return avail;
 177         }
 178         while((fgets(tmp, 256, fp) != NULL) && (avail == -1))
 179         {
 180                 char *t;
 181                 char tmp2[32];
 182                 t = strstr(tmp, " ");
 183                 if(t)
 184                 {
 185                         int l;
 186                         *t = '\0';
 187                         l = snprintf(tmp2, 31, "/dev/%s", disc);
 188
 189                         if(!strncmp(tmp, tmp2, l))
 190                                 avail = 0;
 191                 }
 192         }
 193         fclose(fp);
 194         return avail;
 195 }
 196
 197 static int mount_wait_for_disc(char *disc)
 198 {
 199         int i = 10;
 200         while(i--)
 201         {
 202                 int ret = mount_check_disc(disc);
 203                 if(!ret)
 204                         return ret;
 205                 poll(0, 0, 100);
 206         }
 207         return -1;
 208 }
 209
 210 int mount_new(char *path, char *dev)
 211 {
 212         struct mount *mount;
 213         char tmp[256];
 214         int ret = 1;
 215         pid_t pid;
 216         mount = mount_find(0, dev);
 217         if(!mount)
 218         {
 219                 log_printf("request for invalid path %s%s\n", path, dev);
 220                 return -1;
 221         }
 222         if(mount->ignore || mount->mounted || mount->fs == EXTENDED)
 223                 return -1;
 224         snprintf(tmp, 256, "%s%s", path, mount->dev);
 225         log_printf("mounting %s\n", tmp);
 226         mkdir(tmp, 777);
 227
 228         pid = autofs_safe_fork();
 229         if(!pid)
 230         {
 231                 char *options, *fstype;
 232                 if(mount->fs == EXFAT)
 233                 {
 234                         options = "rw,uid=1000,gid=1000";
 235                         fstype = "exfat";
 236                 }
 237                 if(mount->fs == FAT)
 238                 {
 239                         options = "rw,uid=1000,gid=1000";
 240                         fstype = "vfat";
 241                 }
 242                 if(mount->fs == EXT4)
 243                 {
 244                         options = "rw,defaults";
 245                         fstype = "ext4";
 246                 }
 247                 if(mount->fs == EXT3)
 248                 {
 249                         options = "rw,defaults";
 250                         fstype = "ext3";
 251                 }
 252                 if(mount->fs == EXT2)
 253                 {
 254                         options = "rw,defaults";
 255                         fstype = "ext2";
 256                 }
 257                 if(mount->fs == HFSPLUS)
 258                 {
 259                         options = "rw,defaults,uid=1000,gid=1000";
 260                         fstype = "hfsplus";
 261                 }
 262                 if(mount->fs == HFSPLUSJOURNAL)
 263                 {
 264                         options = "ro,defaults,uid=1000,gid=1000";
 265                         fstype = "hfsplus";
 266                 }
 267                 if(mount->fs == NTFS)
 268                 {
 269                         options = "force";
 270                         fstype = "ntfs-3g";
 271                 }
 272                 if(mount->fs > MBR && mount->fs <= LASTFS)
 273                 {
 274                         struct uci_context *ctx;
 275                         char *uci_options, *uci_fstype;
 276                         ctx = ucix_init("mountd");
 277                         if(fs_names[mount->fs])
 278                         {
 279                                 uci_options = ucix_get_option(ctx, "mountd", fs_names[mount->fs], "options");
 280                                 uci_fstype = ucix_get_option(ctx, "mountd", fs_names[mount->fs], "fstype");
 281                                 if(uci_options)
 282                                         options = uci_options;
 283                                 if(uci_fstype)
 284                                         fstype = uci_fstype;
 285                                 log_printf("mount -t %s -o %s /dev/%s %s", fstype, options, mount->dev, tmp);
 286                                 ret = system_printf("mount -t %s -o %s /dev/%s %s", fstype, options, mount->dev, tmp);
 287                         }
 288                         ucix_cleanup(ctx);
 289                 }
 290                 exit(WEXITSTATUS(ret));
 291         }
 292         pid = waitpid(pid, &ret, 0);
 293         ret = WEXITSTATUS(ret);
 294         log_printf("----------> mount ret = %d\n", ret);
 295         if(ret && (ret != 0xff))
 296                 return -1;
 297         if(mount_wait_for_disc(mount->dev) == 0)
 298         {
 299                 mount->mounted = 1;
 300                 mount_dump_uci_state();
 301         } else return -1;
 302         return 0;
 303 }
 304
 305 int mount_remove(char *path, char *dev)
 306 {
 307         struct mount *mount;
 308         char tmp[256];
 309         int ret;
 310         snprintf(tmp, 256, "%s%s", path, dev);
 311         log_printf("%s has expired... unmounting\n", tmp);
 312         ret = system_printf("/bin/umount %s", tmp);
 313         if(ret != 0)
 314                 return 0;
 315         rmdir(tmp);
 316         mount = mount_find(0, dev);
 317         if(mount)
 318                 mount->mounted = 0;
 319         log_printf("finished unmounting\n");
 320         mount_dump_uci_state();
 321         return 0;
 322 }
 323
 324 static int dir_sort(const struct dirent **a, const struct dirent **b)
 325 {
 326         return 0;
 327 }
 328
 329 static int dir_filter(const struct dirent *a)
 330 {
 331         if(strstr(a->d_name, ":"))
 332                 return 1;
 333         return 0;
 334 }
 335
 336 static char* mount_get_serial(char *dev)
 337 {
 338         static char tmp[64];
 339         static char tmp2[64];
 340         int disc;
 341         static struct hd_driveid hd;
 342         int i;
 343         static char *serial;
 344         static char disc_id[13];
 345         snprintf(tmp, 64, "/dev/%s", dev);
 346         disc = open(tmp, O_RDONLY);
 347         if(!disc)
 348         {
 349                 log_printf("Trying to open unknown disc\n");
 350                 return 0;
 351         }
 352         i = ioctl(disc, HDIO_GET_IDENTITY, &hd);
 353         close(disc);
 354         if(!i)
 355                 serial = (char*)hd.serial_no;
 356         /* if we failed, it probably a usb storage device */
 357         /* there must be a better way for this */
 358         if(i)
 359         {
 360                 struct dirent **namelist;
 361                 int n = scandir("/sys/bus/scsi/devices/", &namelist, dir_filter, dir_sort);
 362                 if(n > 0)
 363                 {
 364                         while(n--)
 365                         {
 366                                 char *t = strstr(namelist[n]->d_name, ":");
 367                                 if(t)
 368                                 {
 369                                         int id;
 370                                         struct stat buf;
 371                                         char tmp3[64];
 372                                         int ret;
 373                                         *t = 0;
 374                                         id = atoi(namelist[n]->d_name);
 375                                         *t = ':';
 376                                         sprintf(tmp3, "/sys/bus/scsi/devices/%s/block:%s/", namelist[n]->d_name, dev);
 377                                         ret = stat(tmp3, &buf);
 378                                         if(ret)
 379                                         {
 380                                                 sprintf(tmp3, "/sys/bus/scsi/devices/%s/block/%s/", namelist[n]->d_name, dev);
 381                                                 ret = stat(tmp3, &buf);
 382                                         }
 383                                         if(!ret)
 384                                         {
 385                                                 FILE *fp;
 386                                                 snprintf(tmp2, 64, "/proc/scsi/usb-storage/%d", id);
 387                                                 fp = fopen(tmp2, "r");
 388                                                 if(fp)
 389                                                 {
 390                                                         while(fgets(tmp2, 64, fp) != NULL)
 391                                                         {
 392                                                                 serial = strstr(tmp2, "Serial Number:");
 393                                                                 if(serial)
 394                                                                 {
 395                                                                         serial += strlen("Serial Number: ");
 396                                                                         serial[strlen(serial) - 1] = '\0';
 397                                                                         i = 0;
 398                                                                         break;
 399                                                                 }
 400                                                         }
 401                                                         fclose(fp);
 402                                                 }
 403                                         }
 404                                 }
 405                                 free(namelist[n]);
 406                         }
 407                         free(namelist);
 408                 }
 409         }
 410         if(i)
 411         {
 412                 log_printf("could not find a serial number for the device %s\n", dev);
 413         } else {
 414                 /* serial string id is cheap, but makes the discs anonymous */
 415                 unsigned char uniq[6];
 416                 unsigned int *u = (unsigned int*) uniq;
 417                 int l = strlen(serial);
 418                 int i;
 419                 memset(disc_id, 0, 13);
 420                 memset(uniq, 0, 6);
 421                 for(i = 0; i < l; i++)
 422                 {
 423                         uniq[i%6] += serial[i];
 424                 }
 425                 sprintf(disc_id, "%08X%02X%02X", *u, uniq[4], uniq[5]);
 426                 //log_printf("Serial number - %s %s\n", serial, disc_id);
 427                 return disc_id;
 428         }
 429         sprintf(disc_id, "000000000000");
 430         return disc_id;
 431 }
 432
 433 static void mount_dev_add(char *dev)
 434 {
 435         struct mount *mount = mount_find(0, dev);
 436         if(!mount)
 437         {
 438                 char node[64];
 439                 char name[64];
 440                 int ignore = 0;
 441                 char *s;
 442                 char tmp[64];
 443                 char tmp2[64];
 444                 char *p;
 445                 struct uci_context *ctx;
 446                 char vendor[64];
 447                 char model[64];
 448                 char rev[64];
 449                 char size[64];
 450                 char sector_size[64];
 451                 FILE *fp;
 452                 int offset = 3;
 453                 int fs;
 454
 455                 strcpy(name, dev);
 456                 if (!strncmp(name, "mmcblk", 6))
 457                         offset = 7;
 458                 name[offset] = '\0';
 459                 s = mount_get_serial(name);
 460                 if(!s) {
 461                         return;
 462                 }
 463                 if (!strncmp(name, "mmcblk", 6)) {
 464                         snprintf(tmp, 64, "part%s", &dev[8]);
 465                         snprintf(node, 64, "SD-P%s", &dev[8]);
 466
 467                 } else {
 468                         snprintf(tmp, 64, "part%s", &dev[3]);
 469                         snprintf(node, 64, "USB-%s", &dev[2]);
 470                 }
 471                 if(node[4] >= 'a' && node[4] <= 'z')
 472                 {
 473                         node[4] -= 'a';
 474                         node[4] += 'A';
 475                 }
 476                 ctx = ucix_init("mountd");
 477                 p = ucix_get_option(ctx, "mountd", s, tmp);
 478                 ucix_cleanup(ctx);
 479                 if(p)
 480                 {
 481                         if(strlen(p) == 1)
 482                         {
 483                                 if(*p == '0')
 484                                         ignore = 1;
 485                         } else {
 486                                 snprintf(node, 64, "%s", p);
 487                         }
 488                 }
 489                 strcpy(name, dev);
 490                 name[3] = '\0';
 491                 snprintf(tmp, 64, "/sys/class/block/%s/device/model", name);
 492                 fp = fopen(tmp, "r");
 493                 if(!fp)
 494                 {
 495                         snprintf(tmp, 64, "/sys/block/%s/device/model", name);
 496                         fp = fopen(tmp, "r");
 497                 }
 498                 if(!fp)
 499                         snprintf(model, 64, "unknown");
 500                 else {
 501                         fgets(model, 64, fp);
 502                         model[strlen(model) - 1] = '\0';;
 503                         fclose(fp);
 504                 }
 505                 snprintf(tmp, 64, "/sys/class/block/%s/device/vendor", name);
 506                 fp = fopen(tmp, "r");
 507                 if(!fp)
 508                 {
 509                         snprintf(tmp, 64, "/sys/block/%s/device/vendor", name);
 510                         fp = fopen(tmp, "r");
 511                 }
 512                 if(!fp)
 513                         snprintf(vendor, 64, "unknown");
 514                 else {
 515                         fgets(vendor, 64, fp);
 516                         vendor[strlen(vendor) - 1] = '\0';
 517                         fclose(fp);
 518                 }
 519                 snprintf(tmp, 64, "/sys/class/block/%s/device/rev", name);
 520                 fp = fopen(tmp, "r");
 521                 if(!fp)
 522                 {
 523                         snprintf(tmp, 64, "/sys/block/%s/device/rev", name);
 524                         fp = fopen(tmp, "r");
 525                 }
 526                 if(!fp)
 527                         snprintf(rev, 64, "unknown");
 528                 else {
 529                         fgets(rev, 64, fp);
 530                         rev[strlen(rev) - 1] = '\0';
 531                         fclose(fp);
 532                 }
 533                 snprintf(tmp, 64, "/sys/class/block/%s/size", dev);
 534                 fp = fopen(tmp, "r");
 535                 if(!fp)
 536                 {
 537                         snprintf(tmp, 64, "/sys/block/%s/%s/size", name, dev);
 538                         fp = fopen(tmp, "r");
 539                 }
 540                 if(!fp)
 541                         snprintf(size, 64, "unknown");
 542                 else {
 543                         fgets(size, 64, fp);
 544                         size[strlen(size) - 1] = '\0';
 545                         fclose(fp);
 546                 }
 547                 strcpy(tmp2, dev);
 548                 tmp2[3] = '\0';
 549                 snprintf(tmp, 64, "/sys/block/%s/queue/hw_sector_size", tmp2);
 550                 fp = fopen(tmp, "r");
 551                 if(!fp)
 552                         snprintf(sector_size, 64, "unknown");
 553                 else {
 554                         fgets(sector_size, 64, fp);
 555                         sector_size[strlen(sector_size) - 1] = '\0';
 556                         fclose(fp);
 557                 }
 558                 snprintf(tmp, 64, "/dev/%s", dev);
 559                 fs = detect_fs(tmp);
 560                 if (fs <= MBR || fs > LASTFS) {
 561                         ignore = 1;
 562                 }
 563                 mount_add_list(node, dev, s, vendor, model, rev, ignore, size, sector_size, fs);
 564                 mount_dump_uci_state();
 565         }
 566 }
 567
 568 static void mount_dev_del(char *dev)
 569 {
 570         struct mount *mount = mount_find(0, dev);
 571         char tmp[256];
 572         if(mount)
 573         {
 574                 if(mount->mounted)
 575                 {
 576                         snprintf(tmp, 256, "%s%s", "/tmp/run/mountd/", mount->name);
 577                         log_printf("%s has dissappeared ... unmounting\n", tmp);
 578                         snprintf(tmp, 256, "%s%s", "/tmp/run/mountd/", mount->dev);
 579                         system_printf("/bin/umount %s", tmp);
 580                         rmdir(tmp);
 581                         snprintf(tmp, 64, "%s%s", uci_path, mount->name);
 582                         unlink(tmp);
 583                         mount_dump_uci_state();
 584                 }
 585         }
 586 }
 587
 588 void mount_dump_list(void)
 589 {
 590         struct list_head *p;
 591         list_for_each(p, &mounts)
 592         {
 593                 struct mount *q = container_of(p, struct mount, list);
 594                 log_printf("* %s %s %d\n", q->name, q->dev, q->mounted);
 595         }
 596 }
 597
 598 char* is_mounted(char *block, char *path)
 599 {
 600         int i;
 601         for(i = 0; i < mounted_count; i++)
 602         {
 603                 if(block)
 604                         if(!strncmp(&mounted[i][0][0], block, strlen(&mounted[i][0][0])))
 605                                 return &mounted[i][0][0];
 606                 if(path)
 607                         if(!strncmp(&mounted[i][1][1], &path[1], strlen(&mounted[i][1][0])))
 608                                 return &mounted[i][0][0];
 609         }
 610         return 0;
 611 }
 612
 613 static void mount_check_mount_list(void)
 614 {
 615         FILE *fp = fopen("/proc/mounts", "r");
 616         char tmp[256];
 617
 618         if(!fp)
 619         {
 620                 log_printf("error reading /proc/mounts");
 621                 return;
 622         }
 623         mounted_count = 0;
 624         while(fgets(tmp, 256, fp) != NULL)
 625         {
 626                 char *t, *t2;
 627                 t = strstr(tmp, " ");
 628                 if(t)
 629                 {
 630                         *t = '\0';
 631                         t++;
 632                 } else t = tmp;
 633                 strncpy(&mounted[mounted_count][0][0], tmp, MAX_MOUNT_NAME);
 634                 t2 = strstr(t, " ");
 635                 if(t2)
 636                 {
 637                         *t2 = '\0';
 638                         t2++;
 639                 } else t2 = t;
 640                 strncpy(&mounted[mounted_count][1][0], t, MAX_MOUNT_NAME);
 641                 t = strstr(t2, " ");
 642                 if(t)
 643                 {
 644                         *t = '\0';
 645                         t++;
 646                 } else t = tmp;
 647                 strncpy(&mounted[mounted_count][2][0], t2, MAX_MOUNT_NAME);
 648         /*      printf("%s %s %s\n",
 649                         mounted[mounted_count][0],
 650                         mounted[mounted_count][1],
 651                         mounted[mounted_count][2]);*/
 652                 if(mounted_count < MAX_MOUNTED - 1)
 653                         mounted_count++;
 654                 else
 655                         log_printf("found more than %d mounts \n", MAX_MOUNTED);
 656         }
 657         fclose(fp);
 658 }
 659
 660 /* FIXME: we need more intelligence here */
 661 static int dir_filter2(const struct dirent *a)
 662 {
 663         if(!strncmp(a->d_name, "mmcblk", 6) || !strncmp(a->d_name, "sd", 2))
 664                 return 1;
 665         return 0;
 666 }
 667 #define MAX_BLOCK       64
 668 static char block[MAX_BLOCK][MAX_BLOCK];
 669 static int blk_cnt = 0;
 670
 671 static int check_block(char *b)
 672 {
 673         int i;
 674         for(i = 0; i < blk_cnt; i++)
 675         {
 676                 if(!strcmp(block[i], b))
 677                         return 1;
 678         }
 679         return 0;
 680 }
 681
 682 static void mount_enum_drives(void)
 683 {
 684         struct dirent **namelist, **namelist2;
 685         int i, n = scandir("/sys/block/", &namelist, dir_filter2, dir_sort);
 686         struct list_head *p;
 687         blk_cnt = 0;
 688         if(n > 0)
 689         {
 690                 while(n--)
 691                 {
 692                         if(blk_cnt < MAX_BLOCK)
 693                         {
 694                                 int m;
 695                                 char tmp[64];
 696                                 snprintf(tmp, 64, "/sys/block/%s/", namelist[n]->d_name);
 697                                 m = scandir(tmp, &namelist2, dir_filter2, dir_sort);
 698                                 if(m > 0)
 699                                 {
 700                                         while(m--)
 701                                         {
 702                                                 strncpy(&block[blk_cnt][0], namelist2[m]->d_name, MAX_BLOCK);
 703                                                 blk_cnt++;
 704                                                 free(namelist2[m]);
 705                                         }
 706                                         free(namelist2);
 707                                 } else {
 708                                         strncpy(&block[blk_cnt][0], namelist[n]->d_name, MAX_BLOCK);
 709                                         blk_cnt++;
 710                                 }
 711                         }
 712                         free(namelist[n]);
 713                 }
 714                 free(namelist);
 715         }
 716         p = mounts.next;
 717         while(p != &mounts)
 718         {
 719                 struct mount *q = container_of(p, struct mount, list);
 720                 char tmp[64];
 721                 struct uci_context *ctx;
 722                 int del = 0;
 723                 char *t;
 724                 snprintf(tmp, 64, "part%s", &q->dev[3]);
 725                 ctx = ucix_init("mountd");
 726                 t = ucix_get_option(ctx, "mountd", q->serial, tmp);
 727                 ucix_cleanup(ctx);
 728                 if(t && !q->mounted)
 729                 {
 730                         if(!strcmp(t, "0"))
 731                         {
 732                                 if(!q->ignore)
 733                                         del = 1;
 734                         } else if(!strcmp(t, "1"))
 735                         {
 736                                 if(strncmp(q->name, "Disc-", 5))
 737                                         del = 1;
 738                         } else if(strcmp(q->name, t))
 739                         {
 740                                 del = 1;
 741                         }
 742                 }
 743                 if(!check_block(q->dev)||del)
 744                 {
 745                         mount_dev_del(q->dev);
 746                         p->prev->next = p->next;
 747                         p->next->prev = p->prev;
 748                         p = p->next;
 749                         log_printf("removing %s\n", q->dev);
 750                         snprintf(tmp, 64, "%s%s", "/tmp/run/mountd/", q->dev);
 751                         rmdir(tmp);
 752                         snprintf(tmp, 64, "%s%s", uci_path, q->name);
 753                         unlink(tmp);
 754                         system_printf("ACTION=remove DEVICE=%s NAME=%s /sbin/hotplug-call mount", q->dev, q->name);
 755                         free(q);
 756                         mount_dump_uci_state();
 757                         system_printf("/etc/fonstated/ReloadSamba");
 758                 } else p = p->next;
 759         }
 760
 761         for(i = 0; i < blk_cnt; i++)
 762                 mount_dev_add(block[i]);
 763 }
 764
 765 static void mount_check_enum(void)
 766 {
 767         waitpid(-1, 0, WNOHANG);
 768         mount_enum_drives();
 769 }
 770
 771 void mount_init(void)
 772 {
 773         INIT_LIST_HEAD(&mounts);
 774         timer_add(mount_check_mount_list, 2);
 775         timer_add(mount_check_enum, 1);
 776         mount_check_mount_list();
 777 }