*
* When a new event is queued, its details are appended to the log.
* When the event finishes, a second record is appended to the log
- * with the same sequence number but a null devpath.
+ * with the same sequence number but a devpath len of 0.
*
* Example:
- * {1, "/devices/virtual/mem/null" },
- * {2, "/devices/virtual/mem/zero" },
- * {1, "" },
- * Event 2 is still queued, but event 1 has been finished
+ * { 0x0000000000000001 }
+ * { 0x0000000000000001, 0x0019, "/devices/virtual/mem/null" },
+ * { 0x0000000000000002, 0x001b, "/devices/virtual/mem/random" },
+ * { 0x0000000000000001, 0x0000 },
+ * { 0x0000000000000003, 0x0019, "/devices/virtual/mem/zero" },
*
- * The queue does not grow indefinitely. It is periodically re-created
- * to remove finished events. Atomic rename() makes this transparent to readers.
+ * Events 2 and 3 are still queued, but event 1 has finished.
+ *
+ * The queue does not grow indefinitely. It is periodically re-created
+ * to remove finished events. Atomic rename() makes this transparent to readers.
*
* The queue file starts with a single sequence number which specifies the
- * minimum sequence number in the log that follows. Any events prior to this
+ * minimum sequence number in the log that follows. Any events prior to this
* sequence number have already finished.
*/
#include <fcntl.h>
#include <dirent.h>
#include <limits.h>
+#include <errno.h>
#include <sys/stat.h>
#include <sys/types.h>
-#include <assert.h>
#include "libudev.h"
#include "libudev-private.h"
return NULL;
}
devpaths = calloc(1, sizeof(struct queue_devpaths) + (range + 1) * sizeof(long));
- if (index == NULL)
+ if (devpaths == NULL)
return NULL;
devpaths->devpaths_size = range + 1;
return -1;
}
- /* when the queue files grow too large, they must be garbage collected and rebuilt */
+ /* when the queue file grows too large, garbage-collect and rebuild it */
bytes = ftell(udev_queue_export->queue_file) + queue_record_size(devpath_len);
/* if we're removing the last event from the queue, that's the best time to rebuild it */
{
struct udev *udev = udev_device_get_udev(udev_device);
char filename[UTIL_PATH_SIZE];
- char *s;
- size_t l;
if (state != DEVICE_FAILED && udev_queue_export->failed_count == 0)
return;
/* location of failed file */
- s = filename;
- l = util_strpcpyl(&s, sizeof(filename), udev_get_dev_path(udev_queue_export->udev), "/.udev/failed/", NULL);
- util_path_encode(udev_device_get_devpath(udev_device), s, l);
+ util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/failed/",
+ udev_device_get_subsystem(udev_device), ":", udev_device_get_sysname(udev_device), NULL);
switch (state) {
case DEVICE_FAILED:
/* record event in the failed directory */
- if (udev_queue_export->failed_count == 0)
- util_create_path(udev, filename);
udev_queue_export->failed_count++;
-
+ util_create_path(udev, filename);
udev_selinux_setfscreatecon(udev, filename, S_IFLNK);
symlink(udev_device_get_devpath(udev_device), filename);
udev_selinux_resetfscreatecon(udev);
break;
case DEVICE_FINISHED:
- if (udev_device_get_devpath_old(udev_device) != NULL) {
+ if (udev_device_get_sysname_old(udev_device) != NULL &&
+ strcmp(udev_device_get_sysname_old(udev_device), udev_device_get_sysname(udev_device)) != 0) {
/* "move" event - rename failed file to current name, do not delete failed */
char filename_old[UTIL_PATH_SIZE];
- s = filename_old;
- l = util_strpcpyl(&s, sizeof(filename_old), udev_get_dev_path(udev_queue_export->udev), "/.udev/failed/", NULL);
- util_path_encode(udev_device_get_devpath_old(udev_device), s, l);
-
+ util_strscpyl(filename_old, sizeof(filename_old), udev_get_dev_path(udev), "/.udev/failed/",
+ udev_device_get_subsystem(udev_device), ":", udev_device_get_sysname_old(udev_device), NULL);
if (rename(filename_old, filename) == 0)
info(udev, "renamed devpath, moved failed state of '%s' to %s'\n",
udev_device_get_devpath_old(udev_device), udev_device_get_devpath(udev_device));