char *devname;
char *subsystem;
struct list_head link_list;
- struct list_head env_list;
+ struct list_head properties_list;
char *action;
char *driver;
char *devpath_old;
udev_device->refcount = 1;
udev_device->udev = udev;
INIT_LIST_HEAD(&udev_device->link_list);
- INIT_LIST_HEAD(&udev_device->env_list);
+ INIT_LIST_HEAD(&udev_device->properties_list);
INIT_LIST_HEAD(&udev_device->attr_list);
info(udev_device->udev, "udev_device: %p created\n", udev_device);
return udev_device;
{
char path[UTIL_PATH_SIZE];
const char *type_str;
+ struct udev_enumerate *enumerate;
+ struct udev_list *list;
+ struct udev_device *device = NULL;
if (type == 'b')
type_str = "block";
else
return NULL;
+ /* /sys/dev/{block,char}/<maj>:<min> links */
snprintf(path, sizeof(path), "%s/dev/%s/%u:%u", udev_get_sys_path(udev),
type_str, major(devnum), minor(devnum));
- if (util_resolve_sys_link(udev, path, sizeof(path)) < 0)
- return NULL;
+ if (util_resolve_sys_link(udev, path, sizeof(path)) == 0)
+ return udev_device_new_from_syspath(udev, path);
- return udev_device_new_from_syspath(udev, path);
+ /* search all sys devices for the major/minor */
+ enumerate = udev_enumerate_new_from_subsystems(udev, NULL);
+ if (enumerate == NULL)
+ return NULL;
+ list = udev_enumerate_get_devices_list(enumerate);
+ while (list != NULL) {
+ struct udev_device *device_loop;
+
+ device_loop = udev_device_new_from_syspath(udev, udev_list_get_name(list));
+ if (device_loop != NULL) {
+ if (udev_device_get_devnum(device_loop) == devnum) {
+ device = device_loop;
+ break;
+ }
+ udev_device_unref(device_loop);
+ }
+ list = udev_list_get_next(list);
+ }
+ udev_enumerate_unref(enumerate);
+ return device;
}
static struct udev_device *device_new_from_parent(struct udev_device *udev_device)
free(udev_device->syspath);
free(udev_device->devname);
free(udev_device->subsystem);
- util_name_list_cleanup(udev_device->udev, &udev_device->link_list);
- util_name_list_cleanup(udev_device->udev, &udev_device->env_list);
+ list_cleanup(udev_device->udev, &udev_device->link_list);
+ list_cleanup(udev_device->udev, &udev_device->properties_list);
free(udev_device->action);
free(udev_device->driver);
free(udev_device->devpath_old);
free(udev_device->physdevpath);
- util_name_list_cleanup(udev_device->udev, &udev_device->attr_list);
+ list_cleanup(udev_device->udev, &udev_device->attr_list);
info(udev_device->udev, "udev_device: %p released\n", udev_device);
free(udev_device);
}
}
/**
- * udev_device_get_devlinks:
+ * udev_device_get_devlinks_list:
* @udev_device: udev device
- * @cb: function to be called for every device link found
- * @data: data to be passed to the function
*
- * Retrieve the device links pointing to the device file of the
- * udev device. For every device link, the passed function will be
- * called with the device link string.
- * The path is an absolute path, and starts with the device directory.
- * If the function returns 1, remaning device links will be ignored.
+ * Retrieve the list of device links pointing to the device file of
+ * the udev device. The next list entry can be retrieved with
+ * udev_list_next(), which returns #NULL if no more entries exist.
+ * The devlink path can be retrieved from the list entry by
+ * udev_list_get_name(). The path is an absolute path, and starts with
+ * the device directory.
*
- * Returns: the number of device links passed to the caller, or a negative value on error
+ * Returns: the first entry of the device node link list
**/
-int udev_device_get_devlinks(struct udev_device *udev_device,
- int (*cb)(struct udev_device *udev_device, const char *value, void *data),
- void *data)
+struct udev_list *udev_device_get_devlinks_list(struct udev_device *udev_device)
{
- struct util_name_entry *name_loop;
- int count = 0;
-
- if (udev_device == NULL)
- return -1;
- list_for_each_entry(name_loop, &udev_device->link_list, node) {
- count++;
- if (cb(udev_device, name_loop->name, data) != 0)
- break;
- }
- return count;
+ return list_get_entry(&udev_device->link_list);
}
/**
- * udev_device_get_properties:
+ * udev_device_get_properties_list:
* @udev_device: udev device
- * @cb: function to be called for every property found
- * @data: data to be passed to the function
*
- * Retrieve the property key/value pairs belonging to the
- * udev device. For every key/value pair, the passed function will be
- * called. If the function returns 1, remaning properties will be
- * ignored.
+ * Retrieve the list of key/value device properties of the udev
+ * device. The next list entry can be retrieved with udev_list_next(),
+ * which returns #NULL if no more entries exist. The property name
+ * can be retrieved from the list entry by udev_list_get_name(),
+ * the property value by udev_list_get_value().
*
- * Returns: the number of properties passed to the caller, or a negative value on error
+ * Returns: the first entry of the property list
**/
-int udev_device_get_properties(struct udev_device *udev_device,
- int (*cb)(struct udev_device *udev_device, const char *key, const char *value, void *data),
- void *data)
+struct udev_list *udev_device_get_properties_list(struct udev_device *udev_device)
{
- struct util_name_entry *name_loop;
- int count = 0;
-
- if (udev_device == NULL)
- return -1;
- list_for_each_entry(name_loop, &udev_device->env_list, node) {
- count++;
- if (cb(udev_device, name_loop->name, name_loop->value, data) != 0)
- break;
- }
- return count;
+ return list_get_entry(&udev_device->properties_list);
}
const char *udev_device_get_driver(struct udev_device *udev_device)
const char *udev_device_get_attr_value(struct udev_device *udev_device, const char *attr)
{
- struct util_name_entry *name_loop;
+ struct udev_list *list;
char path[UTIL_PATH_SIZE];
char value[UTIL_NAME_SIZE];
struct stat statbuf;
const char *val = NULL;
/* look for possibly already cached result */
- list_for_each_entry(name_loop, &udev_device->attr_list, node) {
- if (strcmp(name_loop->name, attr) == 0) {
- info(udev_device->udev, "'%s' in cache '%s'\n", attr, name_loop->value);
- return name_loop->value;
+ list = list_get_entry(&udev_device->attr_list);
+ while (list != NULL) {
+ if (strcmp(udev_list_get_name(list), attr) == 0) {
+ info(udev_device->udev, "got '%s' (%s) from cache\n", attr, udev_list_get_value(list));
+ return udev_list_get_name(list);
}
+ list = udev_list_get_next(list);
}
util_strlcpy(path, udev_device_get_syspath(udev_device), sizeof(path));
if (pos != NULL) {
pos = &pos[1];
info(udev_device->udev, "cache '%s' with link value '%s'\n", attr, pos);
- val = util_name_list_add(udev_device->udev, &udev_device->attr_list, attr, pos, 0)->value;
+ list = list_insert(udev_device->udev, &udev_device->attr_list, attr, pos, 0);
+ val = udev_list_get_value(list);
}
}
goto out;
value[size] = '\0';
util_remove_trailing_chars(value, '\n');
info(udev_device->udev, "'%s' has attribute value '%s'\n", path, value);
- val = util_name_list_add(udev_device->udev, &udev_device->attr_list, attr, value, 0)->value;
+ list = list_insert(udev_device->udev, &udev_device->attr_list, attr, value, 0);
+ val = udev_list_get_value(list);
out:
return val;
}
int device_add_devlink(struct udev_device *udev_device, const char *devlink)
{
- if (util_name_list_add(udev_device->udev, &udev_device->link_list, devlink, NULL, 0) == NULL)
+ if (list_insert(udev_device->udev, &udev_device->link_list, devlink, NULL, 0) == NULL)
return -ENOMEM;
return 0;
}
int device_add_property(struct udev_device *udev_device, const char *key, const char *value)
{
- if (util_name_list_add(udev_device->udev, &udev_device->env_list, key, value, 0) == NULL)
+ if (list_insert(udev_device->udev, &udev_device->properties_list, key, value, 0) == NULL)
return -ENOMEM;
return 0;
}
~ianmdlvl / elogind.git / blobdiff