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udev: set ID_RENAMING property when interface renaming is requested

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And drop the property on the corresponding 'move' uevent.
This commit is contained in:
Yu Watanabe 2019-03-04 11:45:58 +09:00
parent 6d0fdf4513
commit a4055a608e
1 changed files with 30 additions and 17 deletions
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47
src/udev/udev-event.c
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@ -726,11 +726,14 @@ static int rename_netif(UdevEvent *event) {
return log_device_error_errno(dev, r, "Failed to rename network interface %i from '%s' to '%s': %m",
ifindex, oldname, event->name);
/* Set ID_RENAMING boolean property here, and drop it in the corresponding move uevent later. */
r = device_add_property(dev, "ID_RENAMING", "1");
if (r < 0)
log_device_warning_errno(dev, r, "Failed to add 'ID_RENAMING' property: %m");
r = device_rename(dev, event->name);
if (r < 0)
return log_device_warning_errno(dev, r, "Network interface %i is renamed from '%s' to '%s', "
"but could not update sd_device object: %m",
ifindex, oldname, event->name);
log_device_warning_errno(dev, r, "Failed to update properties with new name '%s': %m", event->name);
log_device_debug(dev, "Network interface %i is renamed from '%s' to '%s'", ifindex, oldname, event->name);
@ -817,6 +820,25 @@ static void event_execute_rules_on_remove(
(void) udev_node_remove(dev);
}
static int udev_event_on_move(UdevEvent *event) {
sd_device *dev = event->dev;
int r;
if (event->dev_db_clone &&
sd_device_get_devnum(dev, NULL) < 0) {
r = device_copy_properties(dev, event->dev_db_clone);
if (r < 0)
log_device_debug_errno(dev, r, "Failed to copy properties from cloned sd_device object, ignoring: %m");
}
/* Drop previously added property */
r = device_add_property(dev, "ID_RENAMING", NULL);
if (r < 0)
return log_device_debug_errno(dev, r, "Failed to remove 'ID_RENAMING' property, ignoring: %m");
return 0;
}
int udev_event_execute_rules(UdevEvent *event,
usec_t timeout_usec,
Hashmap *properties_list,
@ -847,21 +869,12 @@ int udev_event_execute_rules(UdevEvent *event,
if (r < 0)
log_device_debug_errno(dev, r, "Failed to clone sd_device object, ignoring: %m");
if (event->dev_db_clone) {
r = sd_device_get_devnum(dev, NULL);
if (r < 0) {
if (r != -ENOENT)
log_device_debug_errno(dev, r, "Failed to get devnum, ignoring: %m");
if (event->dev_db_clone && sd_device_get_devnum(dev, NULL) >= 0)
/* Disable watch during event processing. */
(void) udev_watch_end(event->dev_db_clone);
if (streq(action, "move")) {
r = device_copy_properties(dev, event->dev_db_clone);
if (r < 0)
log_device_debug_errno(dev, r, "Failed to copy properties from cloned device, ignoring: %m");
}
} else
/* Disable watch during event processing. */
(void) udev_watch_end(event->dev_db_clone);
}
if (streq(action, "move"))
(void) udev_event_on_move(event);
(void) udev_rules_apply_to_event(rules, event, timeout_usec, properties_list);