10 #include <linux/hdreg.h>
14 #include <sys/inotify.h>
15 #include <sys/mount.h>
17 #include <sys/types.h>
24 #include "include/log.h"
25 #include "include/list.h"
26 #include "include/sys.h"
27 #include "include/signal.h"
28 #include "include/timer.h"
29 #include "include/autofs.h"
30 #include "include/ucix.h"
31 #include "include/fs.h"
32 #include "include/mount.h"
34 int mount_new(char *path
, char *dev
);
36 static struct list_head mounts
;
39 * enum status - status of mount entry
41 * @STATUS_UNMOUNTED: currently not mounted
42 * @STATUS_MOUNTED: mounted & ready for usage
43 * @STATUS_EXPIRED: mount expired & *temporary* unmounted
44 * @STATUS_IGNORE: entry should be ignored and never mounted
54 struct list_head list
;
67 static char *fs_names
[] = {
83 #define MAX_MOUNTED 32
84 #define MAX_MOUNT_NAME 32
86 static char mounted
[MAX_MOUNTED
][3][MAX_MOUNT_NAME
];
87 static int mounted_count
= 0;
88 extern char uci_path
[32];
90 static void mount_dump_uci_state(void)
92 struct uci_context
*ctx
;
94 char mountd
[] = {"mountd"};
95 char type
[] = {"mountd_disc"};
97 unsigned long long int size
= 0;
98 unlink("/var/state/mountd");
99 ctx
= ucix_init("mountd");
100 uci_set_savedir(ctx
, "/var/state/");
101 ucix_add_option_int(ctx
, mountd
, mountd
, "count", list_count(&mounts
));
102 list_for_each(p
, &mounts
)
104 struct mount
*q
= container_of(p
, struct mount
, list
);
106 if(q
->fs
== EXTENDED
)
108 ucix_add_section(ctx
, mountd
, q
->serial
, type
);
111 ucix_add_option(ctx
, mountd
, q
->serial
, "disc", t
);
112 ucix_add_option(ctx
, mountd
, q
->serial
, "sector_size", q
->sector_size
);
113 snprintf(t
, 64, "part%dmounted", atoi(&q
->dev
[3]));
114 ucix_add_option(ctx
, mountd
, q
->serial
, t
, q
->status
== STATUS_MOUNTED
? "1" : "0");
115 ucix_add_option(ctx
, mountd
, q
->serial
, "vendor", q
->vendor
);
116 ucix_add_option(ctx
, mountd
, q
->serial
, "model", q
->model
);
117 ucix_add_option(ctx
, mountd
, q
->serial
, "rev", q
->rev
);
118 snprintf(t
, 64, "size%d", atoi(&q
->dev
[3]));
119 ucix_add_option(ctx
, mountd
, q
->serial
, t
, q
->size
);
120 if(q
->fs
> MBR
&& q
->fs
<= LASTFS
)
122 snprintf(t
, 64, "fs%d", atoi(&q
->dev
[3]));
123 ucix_add_option(ctx
, mountd
, q
->serial
, t
, fs_names
[q
->fs
]);
125 if (q
->status
== STATUS_MOUNTED
)
127 if ((q
->status
!= STATUS_IGNORE
) && q
->size
&& q
->sector_size
)
128 size
= size
+ (((unsigned long long int)atoi(q
->size
)) * ((unsigned long long int)atoi(q
->sector_size
)));
130 ucix_add_option_int(ctx
, mountd
, mountd
, "mounted", mounted
);
131 ucix_add_option_int(ctx
, mountd
, mountd
, "total", size
);
132 system_printf("echo -n %llu > /tmp/run/mountd_size", size
);
133 ucix_save_state(ctx
, "mountd");
137 static struct mount
* mount_find(char *name
, char *dev
)
140 list_for_each(p
, &mounts
)
142 struct mount
*q
= container_of(p
, struct mount
, list
);
144 if(!strcmp(q
->name
, name
))
147 if(!strcmp(q
->dev
, dev
))
153 static void mount_add_list(char *name
, char *dev
, char *serial
,
154 char *vendor
, char *model
, char *rev
, int ignore
, char *size
, char *sector_size
, int fs
)
157 char dev_path
[64], dev_link
[64], tmp
[64];
159 mount
= malloc(sizeof(struct mount
));
160 INIT_LIST_HEAD(&mount
->list
);
161 strncpy(mount
->vendor
, vendor
, 64);
162 strncpy(mount
->model
, model
, 64);
163 strncpy(mount
->rev
, rev
, 64);
164 strncpy(mount
->name
, name
, 64);
165 strncpy(mount
->dev
, dev
, 64);
166 strncpy(mount
->serial
, serial
, 64);
167 strncpy(mount
->size
, size
, 64);
168 strncpy(mount
->sector_size
, sector_size
, 64);
169 mount
->status
= STATUS_UNMOUNTED
;
171 list_add(&mount
->list
, &mounts
);
174 mount
->status
= STATUS_IGNORE
;
178 log_printf("new mount : %s -> %s (%s)\n", name
, dev
, fs_names
[mount
->fs
]);
180 snprintf(dev_link
, sizeof(dev_link
), "%s%s", uci_path
, name
);
181 snprintf(dev_path
, sizeof(dev_path
), "%s%s", "/tmp/run/mountd/", dev
);
182 /* If link aleady exists - replace it */
183 if (lstat(dev_link
, &st
) == 0 && S_ISLNK(st
.st_mode
)) {
184 snprintf(tmp
, sizeof(tmp
), "%s%s", uci_path
, "tmp");
185 symlink(dev_path
, tmp
);
186 rename(tmp
, dev_link
);
188 symlink(dev_path
, dev_link
);
190 if (!mount_new("/tmp/run/mountd/", dev
))
191 system_printf("ACTION=add DEVICE=%s NAME=%s /sbin/hotplug-call mount", dev
, name
);
195 static int mount_check_disc(char *disc
)
197 FILE *fp
= fopen("/proc/mounts", "r");
202 log_printf("error reading /proc/mounts");
205 while((fgets(tmp
, 256, fp
) != NULL
) && (avail
== -1))
209 t
= strstr(tmp
, " ");
214 l
= snprintf(tmp2
, 31, "/dev/%s", disc
);
216 if(!strncmp(tmp
, tmp2
, l
))
224 static int mount_wait_for_disc(char *disc
)
229 int ret
= mount_check_disc(disc
);
237 int mount_new(char *path
, char *dev
)
243 mount
= mount_find(0, dev
);
246 log_printf("request for invalid path %s%s\n", path
, dev
);
249 if (mount
->status
== STATUS_IGNORE
|| mount
->status
== STATUS_MOUNTED
|| mount
->fs
== EXTENDED
)
251 snprintf(tmp
, 256, "%s%s", path
, mount
->dev
);
252 log_printf("mounting %s\n", tmp
);
255 pid
= autofs_safe_fork();
258 char *options
, *fstype
;
259 if(mount
->fs
== EXFAT
)
261 options
= "rw,uid=1000,gid=1000";
266 options
= "rw,uid=1000,gid=1000";
269 if(mount
->fs
== EXT4
)
271 options
= "rw,defaults";
274 if(mount
->fs
== EXT3
)
276 options
= "rw,defaults";
279 if(mount
->fs
== EXT2
)
281 options
= "rw,defaults";
284 if(mount
->fs
== HFSPLUS
)
286 options
= "rw,defaults,uid=1000,gid=1000";
289 if(mount
->fs
== HFSPLUSJOURNAL
)
291 options
= "ro,defaults,uid=1000,gid=1000";
294 if(mount
->fs
== NTFS
)
299 if(mount
->fs
> MBR
&& mount
->fs
<= LASTFS
)
301 struct uci_context
*ctx
;
302 char *uci_options
, *uci_fstype
;
303 ctx
= ucix_init("mountd");
304 if(fs_names
[mount
->fs
])
306 uci_options
= ucix_get_option(ctx
, "mountd", fs_names
[mount
->fs
], "options");
307 uci_fstype
= ucix_get_option(ctx
, "mountd", fs_names
[mount
->fs
], "fstype");
309 options
= uci_options
;
312 log_printf("mount -t %s -o %s /dev/%s %s", fstype
, options
, mount
->dev
, tmp
);
313 ret
= system_printf("mount -t %s -o %s /dev/%s %s", fstype
, options
, mount
->dev
, tmp
);
317 exit(WEXITSTATUS(ret
));
319 pid
= waitpid(pid
, &ret
, 0);
320 ret
= WEXITSTATUS(ret
);
321 log_printf("----------> mount ret = %d\n", ret
);
322 if (ret
&& ret
!= 0xff) {
326 if(mount_wait_for_disc(mount
->dev
) == 0)
328 mount
->status
= STATUS_MOUNTED
;
329 mount_dump_uci_state();
334 int mount_remove(char *path
, char *dev
)
339 snprintf(tmp
, 256, "%s%s", path
, dev
);
340 log_printf("device %s has expired... unmounting %s\n", dev
, tmp
);
341 ret
= system_printf("/bin/umount %s", tmp
);
345 mount
= mount_find(0, dev
);
347 mount
->status
= STATUS_EXPIRED
;
348 log_printf("finished unmounting\n");
349 mount_dump_uci_state();
353 static int dir_sort(const struct dirent
**a
, const struct dirent
**b
)
358 static int dir_filter(const struct dirent
*a
)
360 if(strstr(a
->d_name
, ":"))
365 static char* mount_get_serial(char *dev
)
368 static char tmp2
[64];
370 static struct hd_driveid hd
;
373 static char disc_id
[13];
374 snprintf(tmp
, 64, "/dev/%s", dev
);
375 disc
= open(tmp
, O_RDONLY
);
378 log_printf("Trying to open unknown disc\n");
381 i
= ioctl(disc
, HDIO_GET_IDENTITY
, &hd
);
384 serial
= (char*)hd
.serial_no
;
385 /* if we failed, it probably a usb storage device */
386 /* there must be a better way for this */
389 struct dirent
**namelist
;
390 int n
= scandir("/sys/bus/scsi/devices/", &namelist
, dir_filter
, dir_sort
);
395 char *t
= strstr(namelist
[n
]->d_name
, ":");
403 id
= atoi(namelist
[n
]->d_name
);
405 sprintf(tmp3
, "/sys/bus/scsi/devices/%s/block:%s/", namelist
[n
]->d_name
, dev
);
406 ret
= stat(tmp3
, &buf
);
409 sprintf(tmp3
, "/sys/bus/scsi/devices/%s/block/%s/", namelist
[n
]->d_name
, dev
);
410 ret
= stat(tmp3
, &buf
);
415 snprintf(tmp2
, 64, "/proc/scsi/usb-storage/%d", id
);
416 fp
= fopen(tmp2
, "r");
419 while(fgets(tmp2
, 64, fp
) != NULL
)
421 serial
= strstr(tmp2
, "Serial Number:");
424 serial
+= strlen("Serial Number: ");
425 serial
[strlen(serial
) - 1] = '\0';
441 log_printf("could not find a serial number for the device %s\n", dev
);
443 /* serial string id is cheap, but makes the discs anonymous */
444 unsigned char uniq
[6];
445 unsigned int *u
= (unsigned int*) uniq
;
446 int l
= strlen(serial
);
448 memset(disc_id
, 0, 13);
450 for(i
= 0; i
< l
; i
++)
452 uniq
[i
%6] += serial
[i
];
454 sprintf(disc_id
, "%08X%02X%02X", *u
, uniq
[4], uniq
[5]);
455 //log_printf("Serial number - %s %s\n", serial, disc_id);
458 sprintf(disc_id
, "000000000000");
462 static void mount_dev_add(char *dev
)
464 struct mount
*mount
= mount_find(0, dev
);
474 struct uci_context
*ctx
;
479 char sector_size
[64];
485 if (!strncmp(name
, "mmcblk", 6))
488 s
= mount_get_serial(name
);
492 if (!strncmp(name
, "mmcblk", 6)) {
493 snprintf(tmp
, 64, "part%s", &dev
[8]);
494 snprintf(node
, 64, "SD-P%s", &dev
[8]);
497 snprintf(tmp
, 64, "part%s", &dev
[3]);
498 snprintf(node
, 64, "USB-%s", &dev
[2]);
500 if(node
[4] >= 'a' && node
[4] <= 'z')
505 ctx
= ucix_init("mountd");
506 p
= ucix_get_option(ctx
, "mountd", s
, tmp
);
515 snprintf(node
, 64, "%s", p
);
520 snprintf(tmp
, 64, "/sys/class/block/%s/device/model", name
);
521 fp
= fopen(tmp
, "r");
524 snprintf(tmp
, 64, "/sys/block/%s/device/model", name
);
525 fp
= fopen(tmp
, "r");
528 snprintf(model
, 64, "unknown");
530 fgets(model
, 64, fp
);
531 model
[strlen(model
) - 1] = '\0';;
534 snprintf(tmp
, 64, "/sys/class/block/%s/device/vendor", name
);
535 fp
= fopen(tmp
, "r");
538 snprintf(tmp
, 64, "/sys/block/%s/device/vendor", name
);
539 fp
= fopen(tmp
, "r");
542 snprintf(vendor
, 64, "unknown");
544 fgets(vendor
, 64, fp
);
545 vendor
[strlen(vendor
) - 1] = '\0';
548 snprintf(tmp
, 64, "/sys/class/block/%s/device/rev", name
);
549 fp
= fopen(tmp
, "r");
552 snprintf(tmp
, 64, "/sys/block/%s/device/rev", name
);
553 fp
= fopen(tmp
, "r");
556 snprintf(rev
, 64, "unknown");
559 rev
[strlen(rev
) - 1] = '\0';
562 snprintf(tmp
, 64, "/sys/class/block/%s/size", dev
);
563 fp
= fopen(tmp
, "r");
566 snprintf(tmp
, 64, "/sys/block/%s/%s/size", name
, dev
);
567 fp
= fopen(tmp
, "r");
570 snprintf(size
, 64, "unknown");
573 size
[strlen(size
) - 1] = '\0';
578 snprintf(tmp
, 64, "/sys/block/%s/queue/hw_sector_size", tmp2
);
579 fp
= fopen(tmp
, "r");
581 snprintf(sector_size
, 64, "unknown");
583 fgets(sector_size
, 64, fp
);
584 sector_size
[strlen(sector_size
) - 1] = '\0';
587 snprintf(tmp
, 64, "/dev/%s", dev
);
589 if (fs
<= MBR
|| fs
> LASTFS
) {
592 mount_add_list(node
, dev
, s
, vendor
, model
, rev
, ignore
, size
, sector_size
, fs
);
593 mount_dump_uci_state();
597 static int mount_dev_del(struct mount
*mount
)
602 if (mount
->status
== STATUS_MOUNTED
) {
603 snprintf(tmp
, 256, "%s%s", "/tmp/run/mountd/", mount
->dev
);
604 log_printf("device %s has disappeared ... unmounting %s\n", mount
->dev
, tmp
);
609 mount_dump_uci_state();
615 void mount_dump_list(void)
618 list_for_each(p
, &mounts
)
620 struct mount
*q
= container_of(p
, struct mount
, list
);
621 log_printf("* %s %s %d\n", q
->name
, q
->dev
, q
->status
== STATUS_MOUNTED
);
625 char* is_mounted(char *block
, char *path
)
628 for(i
= 0; i
< mounted_count
; i
++)
631 if(!strncmp(&mounted
[i
][0][0], block
, strlen(&mounted
[i
][0][0])))
632 return &mounted
[i
][0][0];
634 if(!strncmp(&mounted
[i
][1][1], &path
[1], strlen(&mounted
[i
][1][0])))
635 return &mounted
[i
][0][0];
640 static void mount_update_mount_list(void)
642 FILE *fp
= fopen("/proc/mounts", "r");
647 log_printf("error reading /proc/mounts");
651 while(fgets(tmp
, 256, fp
) != NULL
)
655 if (mounted_count
+ 1 > MAX_MOUNTED
) {
656 log_printf("found more than %d mounts \n", MAX_MOUNTED
);
660 t
= strstr(tmp
, " ");
666 strncpy(&mounted
[mounted_count
][0][0], tmp
, MAX_MOUNT_NAME
);
673 strncpy(&mounted
[mounted_count
][1][0], t
, MAX_MOUNT_NAME
);
680 strncpy(&mounted
[mounted_count
][2][0], t2
, MAX_MOUNT_NAME
);
681 /* printf("%s %s %s\n",
682 mounted[mounted_count][0],
683 mounted[mounted_count][1],
684 mounted[mounted_count][2]);*/
691 /* FIXME: we need more intelligence here */
692 static int dir_filter2(const struct dirent
*a
)
694 if(!strncmp(a
->d_name
, "mmcblk", 6) || !strncmp(a
->d_name
, "sd", 2))
699 static char block
[MAX_BLOCK
][MAX_BLOCK
];
700 static int blk_cnt
= 0;
702 static int check_block(char *b
)
705 for(i
= 0; i
< blk_cnt
; i
++)
707 if(!strcmp(block
[i
], b
))
713 static void mount_enum_drives(void)
715 struct dirent
**namelist
, **namelist2
;
716 int i
, n
= scandir("/sys/block/", &namelist
, dir_filter2
, dir_sort
);
723 if(blk_cnt
< MAX_BLOCK
)
727 snprintf(tmp
, 64, "/sys/block/%s/", namelist
[n
]->d_name
);
728 m
= scandir(tmp
, &namelist2
, dir_filter2
, dir_sort
);
733 strncpy(&block
[blk_cnt
][0], namelist2
[m
]->d_name
, MAX_BLOCK
);
739 strncpy(&block
[blk_cnt
][0], namelist
[n
]->d_name
, MAX_BLOCK
);
750 struct mount
*q
= container_of(p
, struct mount
, list
);
752 struct uci_context
*ctx
;
755 snprintf(tmp
, 64, "part%s", &q
->dev
[3]);
756 ctx
= ucix_init("mountd");
757 t
= ucix_get_option(ctx
, "mountd", q
->serial
, tmp
);
759 if (t
&& q
->status
!= STATUS_MOUNTED
)
763 if (q
->status
!= STATUS_IGNORE
)
765 } else if(!strcmp(t
, "1"))
767 if(strncmp(q
->name
, "Disc-", 5))
769 } else if(strcmp(q
->name
, t
))
774 if(!check_block(q
->dev
)||del
)
778 err
= mount_dev_del(q
);
779 if (q
->status
== STATUS_MOUNTED
|| q
->status
== STATUS_EXPIRED
) {
782 snprintf(dev_link
, sizeof(dev_link
), "%s%s", uci_path
, q
->name
);
784 /* Create "tmp" symlink to non-existing path */
785 snprintf(tmp
, sizeof(tmp
), "%s%s", uci_path
, "tmp");
786 symlink("## DEVICE MISSING ##", tmp
);
788 /* Replace old symlink with the not working one */
789 rename(tmp
, dev_link
);
791 log_printf("unlinking %s\n", dev_link
);
794 system_printf("ACTION=remove DEVICE=%s NAME=%s /sbin/hotplug-call mount", q
->dev
, q
->name
);
797 p
->prev
->next
= p
->next
;
798 p
->next
->prev
= p
->prev
;
802 mount_dump_uci_state();
803 system_printf("/etc/fonstated/ReloadSamba");
807 for(i
= 0; i
< blk_cnt
; i
++)
808 mount_dev_add(block
[i
]);
811 static void mount_check_enum(void)
813 waitpid(-1, 0, WNOHANG
);
817 void mount_init(void)
819 INIT_LIST_HEAD(&mounts
);
820 timer_add(mount_update_mount_list
, 2);
821 timer_add(mount_check_enum
, 1);
822 mount_update_mount_list();