/*
* libudev - interface to udev device information
*
- * Copyright (C) 2008 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2008-2010 Kay Sievers <kay.sievers@vrfy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
#include <stdio.h>
#include <string.h>
#include <stddef.h>
+#include <stdbool.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include "libudev.h"
#include "libudev-private.h"
+static void udev_device_tag(struct udev_device *dev, const char *tag, bool add)
+{
+ struct udev *udev = udev_device_get_udev(dev);
+ char filename[UTIL_PATH_SIZE];
+
+ util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/tags/", tag, "/",
+ udev_device_get_subsystem(dev), ":", udev_device_get_sysname(dev), NULL);
+
+ if (add) {
+ util_create_path(udev, filename);
+ symlink(udev_device_get_devpath(dev), filename);
+ /* possibly cleanup old entries after a device renaming */
+ if (udev_device_get_sysname_old(dev) != NULL) {
+ char filename_old[UTIL_PATH_SIZE];
+
+ util_strscpyl(filename_old, sizeof(filename_old), udev_get_dev_path(udev), "/.udev/tags/", tag, "/",
+ udev_device_get_subsystem(dev), ":", udev_device_get_sysname_old(dev), NULL);
+ unlink(filename_old);
+ }
+ } else {
+ unlink(filename);
+ }
+}
+
+int udev_device_tag_index(struct udev_device *dev, struct udev_device *dev_old, bool add)
+{
+ struct udev_list_entry *list_entry;
+ bool found;
+
+ if (add && dev_old != NULL) {
+ /* delete possible left-over tags */
+ udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(dev_old)) {
+ const char *tag_old = udev_list_entry_get_name(list_entry);
+ struct udev_list_entry *list_entry_current;
+
+ found = false;
+ udev_list_entry_foreach(list_entry_current, udev_device_get_tags_list_entry(dev)) {
+ const char *tag = udev_list_entry_get_name(list_entry_current);
+
+ if (strcmp(tag, tag_old) == 0) {
+ found = true;
+ break;
+ }
+ }
+ if (!found)
+ udev_device_tag(dev_old, tag_old, false);
+ }
+ }
+
+ udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(dev))
+ udev_device_tag(dev, udev_list_entry_get_name(list_entry), add);
+
+ return 0;
+}
+
int udev_device_update_db(struct udev_device *udev_device)
{
struct udev *udev = udev_device_get_udev(udev_device);
udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(udev_device))
if (udev_list_entry_get_flags(list_entry))
goto file;
- if (udev_device_get_ignore_remove(udev_device))
+ if (udev_device_get_tags_list_entry(udev_device) != NULL)
goto file;
if (udev_device_get_devlink_priority(udev_device) != 0)
goto file;
if (f == NULL) {
err(udev, "unable to create temporary db file '%s': %m\n", filename_tmp);
return -1;
- }
+ }
if (udev_device_get_devnode(udev_device) != NULL) {
fprintf(f, "N:%s\n", &udev_device_get_devnode(udev_device)[devlen]);
fprintf(f, "L:%i\n", udev_device_get_devlink_priority(udev_device));
if (udev_device_get_event_timeout(udev_device) >= 0)
fprintf(f, "T:%i\n", udev_device_get_event_timeout(udev_device));
- if (udev_device_get_ignore_remove(udev_device))
- fprintf(f, "R:%i\n", udev_device_get_ignore_remove(udev_device));
if (udev_device_get_watch_handle(udev_device) >= 0)
fprintf(f, "W:%i\n", udev_device_get_watch_handle(udev_device));
udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(udev_device)) {
udev_list_entry_get_name(list_entry),
udev_list_entry_get_value(list_entry));
}
+ udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(udev_device))
+ fprintf(f, "G:%s\n", udev_list_entry_get_name(list_entry));
fclose(f);
rename(filename_tmp, filename);
info(udev, "created db file for '%s' in '%s'\n", udev_device_get_devpath(udev_device), filename);
char filename_old[UTIL_PATH_SIZE];
char filename[UTIL_PATH_SIZE];
+ if (strcmp(udev_device_get_sysname(udev_device), udev_device_get_sysname_old(udev_device)) == 0)
+ return 0;
+
util_strscpyl(filename_old, sizeof(filename_old), udev_get_dev_path(udev), "/.udev/db/",
udev_device_get_subsystem(udev_device), ":", udev_device_get_sysname_old(udev_device), NULL);
util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/db/",