case 'D':
if (strlen(udev->kernel_number) == 0) {
strcat(pos, "disc");
+ dbg("substitute devfs disc");
break;
}
strcat(pos, "part");
strcat(pos, udev->kernel_number);
- dbg("substitute kernel number '%s'", udev->kernel_number);
+ dbg("substitute devfs part '%s'", udev->kernel_number);
break;
case 'm':
sprintf(pos, "%u", udev->minor);
break;
}
}
- strcat(pos, pos3);
- dbg("substitute partial callout output '%s'", pos3);
+ if (pos3) {
+ strcat(pos, pos3);
+ dbg("substitute partial callout output '%s'", pos3);
+ }
} else {
strcat(pos, udev->callout_value);
dbg("substitute callout output '%s'", udev->callout_value);
} bus_files[] = {
{ .bus = "scsi", .file = "vendor" },
{ .bus = "usb", .file = "idVendor" },
+ { .bus = "ide", .file = "detach_state" },
+ { .bus = "pci", .file = "vendor" },
{}
};
if (dev->type != CALLOUT)
continue;
- if (sysfs_device) {
+ if (dev->bus[0] != '\0') {
+ /* as the user specified a bus, we must match it up */
+ if (!sysfs_device)
+ continue;
dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
continue;
if (dev->type != LABEL)
continue;
- if (sysfs_device) {
+ if (dev->bus[0] != '\0') {
+ /* as the user specified a bus, we must match it up */
+ if (!sysfs_device)
+ continue;
dbg("dev->bus='%s' sysfs_device->bus='%s'", dev->bus, sysfs_device->bus);
if (strcasecmp(dev->bus, sysfs_device->bus) != 0)
continue;
struct sysfs_device *sysfs_device;
struct sysfs_class_device *class_dev_parent;
int loop;
-
- /* FIXME!!! */
- /* This is needed here as we can easily out-race the placement of the
- * device symlink by the kernel. The call to sleep(1); will be removed
- * once libsysfs can be queried for sysfs_get_classdev_device()
- * multiple times and have it return the proper information when the
- * class device really shows up. For now, we live with the time
- * delay...
+ char filename[SYSFS_PATH_MAX + 6];
+ int retval;
+ char *temp;
+ int partition = 0;
+
+ /* Figure out where the device symlink is at. For char devices this will
+ * always be in the class_dev->path. But for block devices, it's different.
+ * The main block device will have the device symlink in it's path, but
+ * all partitions have the symlink in its parent directory.
+ * But we need to watch out for block devices that do not have parents, yet
+ * look like a partition (fd0, loop0, etc.) They all do not have a device
+ * symlink yet. We do sit and spin on waiting for them right now, we should
+ * possibly have a whitelist for these devices here...
*/
- sleep(1);
+ strcpy(filename, class_dev->path);
+ dbg("filename = %s", filename);
+ if (strcmp(class_dev->classname, SYSFS_BLOCK_NAME) == 0) {
+ if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
+ temp = strrchr(filename, '/');
+ if (temp) {
+ partition = 1;
+ *temp = 0x00;
+ char *temp2 = strrchr(filename, '/');
+ dbg("temp2 = %s", temp2);
+ if (temp2 && (strcmp(temp2, "/block") == 0)) {
+ /* oops, we have no parent block device, so go back to original directory */
+ strcpy(filename, class_dev->path);
+ partition = 0;
+ }
+ }
+ }
+ }
+ strcat(filename, "/device");
-#if 0 /* FIXME
- Something like this could also work, but for some reason doesn't,
- I also tried just stat() on the device symlink, but that still
- has nasty races, I'm probably doing something stupid... :( */
- loop = 10;
+ loop = 2;
while (loop--) {
struct stat buf;
- int retval;
- char filename[SYSFS_PATH_MAX + 6];
-
- strcpy(filename, class_dev->path);
- strcat(filename, "/device");
dbg("looking for '%s'", filename);
retval = stat(filename, &buf);
if (!retval)
break;
-
- /* bah, let's go backwards up a level to see if the device is there,
- * as block partitions don't point to the physical device. Need to fix that
- * up in the kernel...
- */
- if (strcmp(class_dev->classname, SYSFS_BLOCK_NAME) == 0) {
- if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
- class_dev_parent = sysfs_get_classdev_parent(class_dev);
- if (class_dev_parent == NULL) {
- dbg("sysfs_get_classdev_parent for class device '%s' failed", class_dev->name);
- } else {
- strcpy(filename, class_dev_parent->path);
- strcat(filename, "/device");
- dbg("looking for '%s'", filename);
- retval = stat(filename, &buf);
- if (!retval)
- break;
- }
- }
- }
/* sleep to give the kernel a chance to create the device file */
sleep(1);
}
-#endif
+
loop = 1; /* FIXME put a real value in here for when everything is fixed... */
while (loop--) {
/* find the sysfs_device for this class device */
if (sysfs_device != NULL)
goto exit;
- /* bah, let's go backwards up a level to see if the device is there,
- * as block partitions don't point to the physical device. Need to fix that
- * up in the kernel...
- */
- if (strcmp(class_dev->classname, SYSFS_BLOCK_NAME) == 0) {
- dbg("looking at block device");
- if (isdigit(class_dev->path[strlen(class_dev->path)-1])) {
- dbg("really is a partition");
- class_dev_parent = sysfs_get_classdev_parent(class_dev);
- if (class_dev_parent == NULL) {
- dbg("sysfs_get_classdev_parent for class device '%s' failed", class_dev->name);
- } else {
- dbg("class_dev_parent->name='%s'", class_dev_parent->name);
- sysfs_device = sysfs_get_classdev_device(class_dev_parent);
- if (sysfs_device != NULL)
- goto exit;
- }
+ /* if it's a partition, we need to get the parent device */
+ if (partition) {
+ /* FIXME HACK HACK HACK HACK
+ * for some reason partitions need this extra sleep here, in order
+ * to wait for the device properly. Once the libsysfs code is
+ * fixed properly, this sleep should go away, and we can just loop above.
+ */
+ sleep(1);
+ dbg("really is a partition");
+ class_dev_parent = sysfs_get_classdev_parent(class_dev);
+ if (class_dev_parent == NULL) {
+ dbg("sysfs_get_classdev_parent for class device '%s' failed", class_dev->name);
+ } else {
+ dbg("class_dev_parent->name='%s'", class_dev_parent->name);
+ sysfs_device = sysfs_get_classdev_device(class_dev_parent);
+ if (sysfs_device != NULL)
+ goto exit;
}
}
/* sleep to give the kernel a chance to create the link */
- sleep(1);
-
+ /* FIXME remove comment...
+ sleep(1); */
}
dbg("Timed out waiting for device symlink, continuing on anyway...");
exit:
~ianmdlvl / elogind.git / blobdiff