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