/*
* udev_volume_id - udev callout to read filesystem label and uuid
*
- * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
*
* sample udev rule for creation of a symlink with the filsystem uuid:
- * KERNEL="sd*", PROGRAM="/sbin/udev_volume_id -M%M -m%m -u", SYMLINK="%c"
+ * KERNEL="sd*", PROGRAM="/sbin/udev_volume_id -u %N", SYMLINK="%c"
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
+#include <string.h>
+#include <ctype.h>
+#include <sys/ioctl.h>
-#include "volume_id.h"
+#include "../../udev_utils.h"
+#include "../../logging.h"
+#include "volume_id/volume_id.h"
+#include "volume_id/dasd.h"
+
+#define BLKGETSIZE64 _IOR(0x12,114,size_t)
+
+#ifdef LOG
+void log_message(int level, const char *format, ...)
+{
+ va_list args;
+
+ va_start(args, format);
+ vsyslog(level, format, args);
+ va_end(args);
+}
+#endif
+
+extern int optind;
int main(int argc, char *argv[])
{
- struct volume_id *vid;
- const char help[] = "usage: udev_volume_id -m<minor> -M<major> [-t|-l|-u]\n";
- int major = -1;
- int minor = -1;
- char *tail;
- static const char short_options[] = "M:m:htlu";
- int option;
- char print = '\0';
- int rc;
+ const char help[] = "usage: udev_volume_id [-t|-l|-u] <device>\n"
+ " -t filesystem type\n"
+ " -l filesystem label\n"
+ " -u filesystem uuid\n"
+ "\n";
+ static const char short_options[] = "htlu";
+ struct volume_id *vid = NULL;
+ const char *device;
+ char print = 'a';
+ static char name[VOLUME_ID_LABEL_SIZE];
+ int len, i, j;
+ unsigned long long size;
+ int rc = 1;
+ logging_init("udev_volume_id");
while (1) {
+ int option;
+
option = getopt(argc, argv, short_options);
if (option == -1)
break;
switch (option) {
- case 'M':
- major = (int) strtoul(optarg, &tail, 10);
- if (tail[0] != '\0') {
- printf("invalid major\n");
- exit(1);
- }
- break;
- case 'm':
- minor = (int) strtoul(optarg, &tail, 10);
- if (tail[0] != '\0') {
- printf("invalid minor\n");
- exit(1);
- }
- break;
case 't':
print = 't';
- break;
+ continue;
case 'l':
print = 'l';
- break;
+ continue;
case 'u':
print = 'u';
- break;
+ continue;
case 'h':
case '?':
default:
}
}
- if (major == -1 || minor == -1) {
+ device = argv[optind];
+ if (device == NULL) {
printf(help);
exit(1);
}
- vid = volume_id_open_dev_t(makedev(major, minor));
+ vid = volume_id_open_node(device);
if (vid == NULL) {
printf("error open volume\n");
- exit(1);
+ goto exit;
}
- rc = volume_id_probe(vid, ALL);
- if (rc != 0) {
- printf("error probing volume\n");
- exit(1);
+ if (ioctl(vid->fd, BLKGETSIZE64, &size) != 0)
+ size = 0;
+
+ if (volume_id_probe_all(vid, 0, size) == 0)
+ goto print;
+
+ if (volume_id_probe_dasd(vid) == 0)
+ goto print;
+
+ printf("unknown volume type\n");
+ goto exit;
+
+
+print:
+ len = strnlen(vid->label, VOLUME_ID_LABEL_SIZE);
+
+ /* remove trailing spaces */
+ while (len > 0 && isspace(vid->label[len-1]))
+ len--;
+ name[len] = '\0';
+
+ /* substitute chars */
+ i = 0;
+ j = 0;
+ while (j < len) {
+ switch(vid->label[j]) {
+ case '/' :
+ break;
+ case ' ' :
+ name[i++] = '_';
+ break;
+ default :
+ name[i++] = vid->label[j];
+ }
+ j++;
}
+ name[i] = '\0';
switch (print) {
case 't':
- printf("%s\n", vid->fs_name);
+ printf("%s\n", vid->type);
break;
case 'l':
- if (vid->label_string[0] == '\0')
- exit(2);
- printf("%s\n", vid->label_string);
+ if (name[0] == '\0' ||
+ (vid->usage_id != VOLUME_ID_FILESYSTEM && vid->usage_id != VOLUME_ID_DISKLABEL)) {
+ rc = 2;
+ goto exit;
+ }
+ printf("%s\n", name);
break;
case 'u':
- if (vid->uuid_string[0] == '\0')
- exit(2);
- printf("%s\n", vid->uuid_string);
+ if (vid->uuid[0] == '\0' || vid->usage_id != VOLUME_ID_FILESYSTEM) {
+ rc = 2;
+ goto exit;
+ }
+ printf("%s\n", vid->uuid);
break;
- default:
- printf("T:%s\n", vid->fs_name);
- printf("L:%s\n", vid->label_string);
- printf("U:%s\n", vid->uuid_string);
+ case 'a':
+ printf("F:%s\n", vid->usage);
+ printf("T:%s\n", vid->type);
+ printf("V:%s\n", vid->type_version);
+ printf("L:%s\n", vid->label);
+ printf("N:%s\n", name);
+ printf("U:%s\n", vid->uuid);
}
+ rc = 0;
+
+exit:
+ if (vid != NULL)
+ volume_id_close(vid);
- volume_id_close(vid);
+ logging_close();
- exit(0);
+ exit(rc);
}
~ianmdlvl / elogind.git / blobdiff