unsigned int devices_cur;
unsigned int devices_max;
bool devices_uptodate:1;
+ bool match_is_initialized;
};
/**
*
* Returns: an enumeration context
**/
-struct udev_enumerate *udev_enumerate_new(struct udev *udev)
+UDEV_EXPORT struct udev_enumerate *udev_enumerate_new(struct udev *udev)
{
struct udev_enumerate *udev_enumerate;
*
* Returns: the passed enumeration context
**/
-struct udev_enumerate *udev_enumerate_ref(struct udev_enumerate *udev_enumerate)
+UDEV_EXPORT struct udev_enumerate *udev_enumerate_ref(struct udev_enumerate *udev_enumerate)
{
if (udev_enumerate == NULL)
return NULL;
* Drop a reference of an enumeration context. If the refcount reaches zero,
* all resources of the enumeration context will be released.
**/
-void udev_enumerate_unref(struct udev_enumerate *udev_enumerate)
+UDEV_EXPORT void udev_enumerate_unref(struct udev_enumerate *udev_enumerate)
{
unsigned int i;
*
* Returns: the udev library context.
*/
-struct udev *udev_enumerate_get_udev(struct udev_enumerate *udev_enumerate)
+UDEV_EXPORT struct udev *udev_enumerate_get_udev(struct udev_enumerate *udev_enumerate)
{
if (udev_enumerate == NULL)
return NULL;
*
* Returns: the first entry of the sorted list of device paths.
*/
-struct udev_list_entry *udev_enumerate_get_list_entry(struct udev_enumerate *udev_enumerate)
+UDEV_EXPORT struct udev_list_entry *udev_enumerate_get_list_entry(struct udev_enumerate *udev_enumerate)
{
if (udev_enumerate == NULL)
return NULL;
/* skip to be delayed devices, and add them to the end of the list */
if (devices_delay_end(udev_enumerate->udev, entry->syspath)) {
syspath_add(udev_enumerate, entry->syspath);
+ /* need to update prev here for the case realloc() gives a different address */
+ prev = &udev_enumerate->devices[i];
continue;
}
strncmp(entry->syspath, move_later->syspath, move_later_prefix) != 0) {
udev_list_entry_add(udev_enumerate->udev, &udev_enumerate->devices_list,
- move_later->syspath, NULL, 0, 0);
+ move_later->syspath, NULL, 0);
move_later = NULL;
}
udev_list_entry_add(udev_enumerate->udev, &udev_enumerate->devices_list,
- entry->syspath, NULL, 0, 0);
+ entry->syspath, NULL, 0);
}
if (move_later)
udev_list_entry_add(udev_enumerate->udev, &udev_enumerate->devices_list,
- move_later->syspath, NULL, 0, 0);
+ move_later->syspath, NULL, 0);
/* add and cleanup delayed devices from end of list */
for (i = max; i < udev_enumerate->devices_cur; i++) {
struct syspath *entry = &udev_enumerate->devices[i];
udev_list_entry_add(udev_enumerate->udev, &udev_enumerate->devices_list,
- entry->syspath, NULL, 0, 0);
+ entry->syspath, NULL, 0);
free(entry->syspath);
}
udev_enumerate->devices_cur = max;
*
* Returns: 0 on success, otherwise a negative error value.
*/
-int udev_enumerate_add_match_subsystem(struct udev_enumerate *udev_enumerate, const char *subsystem)
+UDEV_EXPORT int udev_enumerate_add_match_subsystem(struct udev_enumerate *udev_enumerate, const char *subsystem)
{
if (udev_enumerate == NULL)
return -EINVAL;
if (subsystem == NULL)
return 0;
if (udev_list_entry_add(udev_enumerate_get_udev(udev_enumerate),
- &udev_enumerate->subsystem_match_list, subsystem, NULL, 1, 0) == NULL)
+ &udev_enumerate->subsystem_match_list, subsystem, NULL, UDEV_LIST_UNIQUE) == NULL)
return -ENOMEM;
return 0;
}
*
* Returns: 0 on success, otherwise a negative error value.
*/
-int udev_enumerate_add_nomatch_subsystem(struct udev_enumerate *udev_enumerate, const char *subsystem)
+UDEV_EXPORT int udev_enumerate_add_nomatch_subsystem(struct udev_enumerate *udev_enumerate, const char *subsystem)
{
if (udev_enumerate == NULL)
return -EINVAL;
if (subsystem == NULL)
return 0;
if (udev_list_entry_add(udev_enumerate_get_udev(udev_enumerate),
- &udev_enumerate->subsystem_nomatch_list, subsystem, NULL, 1, 0) == NULL)
+ &udev_enumerate->subsystem_nomatch_list, subsystem, NULL, UDEV_LIST_UNIQUE) == NULL)
return -ENOMEM;
return 0;
}
*
* Returns: 0 on success, otherwise a negative error value.
*/
-int udev_enumerate_add_match_sysattr(struct udev_enumerate *udev_enumerate, const char *sysattr, const char *value)
+UDEV_EXPORT int udev_enumerate_add_match_sysattr(struct udev_enumerate *udev_enumerate, const char *sysattr, const char *value)
{
if (udev_enumerate == NULL)
return -EINVAL;
if (sysattr == NULL)
return 0;
if (udev_list_entry_add(udev_enumerate_get_udev(udev_enumerate),
- &udev_enumerate->sysattr_match_list, sysattr, value, 0, 0) == NULL)
+ &udev_enumerate->sysattr_match_list, sysattr, value, 0) == NULL)
return -ENOMEM;
return 0;
}
*
* Returns: 0 on success, otherwise a negative error value.
*/
-int udev_enumerate_add_nomatch_sysattr(struct udev_enumerate *udev_enumerate, const char *sysattr, const char *value)
+UDEV_EXPORT int udev_enumerate_add_nomatch_sysattr(struct udev_enumerate *udev_enumerate, const char *sysattr, const char *value)
{
if (udev_enumerate == NULL)
return -EINVAL;
if (sysattr == NULL)
return 0;
if (udev_list_entry_add(udev_enumerate_get_udev(udev_enumerate),
- &udev_enumerate->sysattr_nomatch_list, sysattr, value, 0, 0) == NULL)
+ &udev_enumerate->sysattr_nomatch_list, sysattr, value, 0) == NULL)
return -ENOMEM;
return 0;
}
*
* Returns: 0 on success, otherwise a negative error value.
*/
-int udev_enumerate_add_match_property(struct udev_enumerate *udev_enumerate, const char *property, const char *value)
+UDEV_EXPORT int udev_enumerate_add_match_property(struct udev_enumerate *udev_enumerate, const char *property, const char *value)
{
if (udev_enumerate == NULL)
return -EINVAL;
if (property == NULL)
return 0;
if (udev_list_entry_add(udev_enumerate_get_udev(udev_enumerate),
- &udev_enumerate->properties_match_list, property, value, 0, 0) == NULL)
+ &udev_enumerate->properties_match_list, property, value, 0) == NULL)
return -ENOMEM;
return 0;
}
*
* Returns: 0 on success, otherwise a negative error value.
*/
-int udev_enumerate_add_match_tag(struct udev_enumerate *udev_enumerate, const char *tag)
+UDEV_EXPORT int udev_enumerate_add_match_tag(struct udev_enumerate *udev_enumerate, const char *tag)
{
if (udev_enumerate == NULL)
return -EINVAL;
if (tag == NULL)
return 0;
if (udev_list_entry_add(udev_enumerate_get_udev(udev_enumerate),
- &udev_enumerate->tags_match_list, tag, NULL, 1, 0) == NULL)
+ &udev_enumerate->tags_match_list, tag, NULL, UDEV_LIST_UNIQUE) == NULL)
return -ENOMEM;
return 0;
}
+/**
+ * udev_enumerate_add_match_is_initialized:
+ * @udev_enumerate: context
+ *
+ * Match only devices which udev has set up already. This makes
+ * sure, that the device node permissions and context are properly set
+ * and that network devices are fully renamed.
+ *
+ * Usually, devices which are found in the kernel but not already
+ * handled by udev, have still pending events. Services should subscribe
+ * to monitor events and wait for these devices to become ready, instead
+ * of using uninitialized devices.
+ *
+ * For now, this will not affect devices which do not have a device node
+ * and are not network interfaces.
+ *
+ * Returns: 0 on success, otherwise a negative error value.
+ */
+UDEV_EXPORT int udev_enumerate_add_match_is_initialized(struct udev_enumerate *udev_enumerate)
+{
+ if (udev_enumerate == NULL)
+ return -EINVAL;
+ udev_enumerate->match_is_initialized = true;
+ return 0;
+}
+
/**
* udev_enumerate_add_match_sysname:
* @udev_enumerate: context
*
* Returns: 0 on success, otherwise a negative error value.
*/
-int udev_enumerate_add_match_sysname(struct udev_enumerate *udev_enumerate, const char *sysname)
+UDEV_EXPORT int udev_enumerate_add_match_sysname(struct udev_enumerate *udev_enumerate, const char *sysname)
{
if (udev_enumerate == NULL)
return -EINVAL;
if (sysname == NULL)
return 0;
if (udev_list_entry_add(udev_enumerate_get_udev(udev_enumerate),
- &udev_enumerate->sysname_match_list, sysname, NULL, 1, 0) == NULL)
+ &udev_enumerate->sysname_match_list, sysname, NULL, UDEV_LIST_UNIQUE) == NULL)
return -ENOMEM;
return 0;
}
if (dev == NULL)
continue;
+ if (udev_enumerate->match_is_initialized) {
+ /*
+ * All devices with a device node or network interfaces
+ * possibly need udev to adjust the device node permission
+ * or context, or rename the interface before it can be
+ * reliably used from other processes.
+ *
+ * For now, we can only check these types of devices, we
+ * might not store a database, and have no way to find out
+ * for all other types of devices.
+ */
+ if (!udev_device_get_is_initialized(dev) &&
+ (major(udev_device_get_devnum(dev)) > 0 || udev_device_get_ifindex(dev) > 0))
+ goto nomatch;
+ }
if (!match_tag(udev_enumerate, dev))
goto nomatch;
if (!match_property(udev_enumerate, dev))
*
* Returns: 0 on success, otherwise a negative error value.
*/
-int udev_enumerate_add_syspath(struct udev_enumerate *udev_enumerate, const char *syspath)
+UDEV_EXPORT int udev_enumerate_add_syspath(struct udev_enumerate *udev_enumerate, const char *syspath)
{
struct udev_device *udev_device;
*
* Returns: 0 on success, otherwise a negative error value.
**/
-int udev_enumerate_scan_devices(struct udev_enumerate *udev_enumerate)
+UDEV_EXPORT int udev_enumerate_scan_devices(struct udev_enumerate *udev_enumerate)
{
struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
char base[UTIL_PATH_SIZE];
struct dirent *dent;
char path[UTIL_PATH_SIZE];
- util_strscpyl(path, sizeof(path), udev_get_dev_path(udev), "/.udev/tags/",
+ util_strscpyl(path, sizeof(path), udev_get_run_path(udev), "/tags/",
udev_list_entry_get_name(list_entry), NULL);
dir = opendir(path);
if (dir == NULL)
dev = udev_device_new_from_id_filename(udev_enumerate->udev, dent->d_name);
if (dev == NULL)
continue;
+
+ if (!match_subsystem(udev_enumerate, udev_device_get_subsystem(dev)))
+ goto nomatch;
+ if (!match_sysname(udev_enumerate, udev_device_get_sysname(dev)))
+ goto nomatch;
+ if (!match_property(udev_enumerate, dev))
+ goto nomatch;
+ if (!match_sysattr(udev_enumerate, dev))
+ goto nomatch;
+
syspath_add(udev_enumerate, udev_device_get_syspath(dev));
+nomatch:
udev_device_unref(dev);
}
closedir(dir);
*
* Returns: 0 on success, otherwise a negative error value.
**/
-int udev_enumerate_scan_subsystems(struct udev_enumerate *udev_enumerate)
+UDEV_EXPORT int udev_enumerate_scan_subsystems(struct udev_enumerate *udev_enumerate)
{
struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
char base[UTIL_PATH_SIZE];