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