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Diffstat (limited to 'libudev/libudev-device-private.c')
-rw-r--r--libudev/libudev-device-private.c46
1 files changed, 44 insertions, 2 deletions
diff --git a/libudev/libudev-device-private.c b/libudev/libudev-device-private.c
index 5e4381ec27..13f1ebf883 100644
--- a/libudev/libudev-device-private.c
+++ b/libudev/libudev-device-private.c
@@ -1,7 +1,7 @@
/*
* 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
@@ -13,6 +13,7 @@
#include <stdio.h>
#include <string.h>
#include <stddef.h>
+#include <stdbool.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
@@ -21,6 +22,37 @@
#include "libudev.h"
#include "libudev-private.h"
+static int udev_device_tag_index(struct udev_device *udev_device, bool add)
+{
+ struct udev *udev = udev_device_get_udev(udev_device);
+ struct udev_list_entry *list_entry;
+
+ udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(udev_device)) {
+ char filename[UTIL_PATH_SIZE];
+
+ util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/tags/",
+ udev_list_entry_get_name(list_entry), "/",
+ udev_device_get_subsystem(udev_device), ":", udev_device_get_sysname(udev_device), NULL);
+
+ if (add) {
+ util_create_path(udev, filename);
+ symlink(udev_device_get_devpath(udev_device), filename);
+ if (udev_device_get_sysname_old(udev_device) != NULL) {
+ char filename_old[UTIL_PATH_SIZE];
+
+ util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/tags/",
+ udev_list_entry_get_name(list_entry),
+ udev_device_get_subsystem(udev_device), ":", udev_device_get_sysname_old(udev_device), NULL);
+ unlink(filename_old);
+ }
+ } else {
+ unlink(filename);
+ util_delete_path(udev, filename);
+ }
+ }
+ return 0;
+}
+
int udev_device_update_db(struct udev_device *udev_device)
{
struct udev *udev = udev_device_get_udev(udev_device);
@@ -41,6 +73,8 @@ int udev_device_update_db(struct udev_device *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_tags_list_entry(udev_device) != NULL)
+ goto file;
if (udev_device_get_devlink_priority(udev_device) != 0)
goto file;
if (udev_device_get_event_timeout(udev_device) >= 0)
@@ -80,7 +114,7 @@ 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]);
@@ -100,10 +134,13 @@ file:
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);
out:
+ udev_device_tag_index(udev_device, true);
return 0;
}
@@ -112,6 +149,7 @@ int udev_device_delete_db(struct udev_device *udev_device)
struct udev *udev = udev_device_get_udev(udev_device);
char filename[UTIL_PATH_SIZE];
+ udev_device_tag_index(udev_device, false);
util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/db/",
udev_device_get_subsystem(udev_device), ":", udev_device_get_sysname(udev_device), NULL);
unlink(filename);
@@ -124,9 +162,13 @@ int udev_device_rename_db(struct udev_device *udev_device)
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/",
udev_device_get_subsystem(udev_device), ":", udev_device_get_sysname(udev_device), NULL);
+ udev_device_tag_index(udev_device, true);
return rename(filename_old, filename);
}