2 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
3 * Copyright (C) 2003-2006 Kay Sievers <kay.sievers@vrfy.org>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation version 2 of the License.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
23 #include <sys/types.h>
24 #include <sys/param.h>
28 #include "udev_sysdeps.h"
29 #include "udev_version.h"
31 #define COMMENT_CHARACTER '#'
35 #define VALUE_SIZE 128
37 #define ALLOWED_CHARS "#+-.:=@_"
38 #define ALLOWED_CHARS_FILE ALLOWED_CHARS "/"
39 #define ALLOWED_CHARS_INPUT ALLOWED_CHARS_FILE " $%?,"
41 #define DEFAULT_PARTITIONS_COUNT 15
42 #define UDEV_ALARM_TIMEOUT 180
44 #define UDEV_MAX(a,b) ((a) > (b) ? (a) : (b))
50 #define DB_DIR ".udev/db"
51 #define DB_NAME_INDEX_DIR ".udev/names"
52 #define RULES_DYN_DIR ".udev/rules.d"
57 struct list_head node; /* for device cache */
58 struct sysfs_device *parent; /* already cached parent*/
59 char devpath[PATH_SIZE];
60 char subsystem[NAME_SIZE]; /* $class, $bus, drivers, module */
61 char kernel[NAME_SIZE]; /* device instance name */
62 char kernel_number[NAME_SIZE];
63 char driver[NAME_SIZE]; /* device driver name */
68 struct sysfs_device *dev; /* points to dev_local by default */
69 struct sysfs_device dev_local;
70 struct sysfs_device *dev_parent; /* current parent device used for matching */
71 char action[NAME_SIZE];
75 struct list_head symlink_list;
77 char owner[NAME_SIZE];
79 char group[NAME_SIZE];
85 /* event processing */
86 struct list_head run_list;
88 struct list_head env_list;
89 char tmp_node[PATH_SIZE];
93 char program_result[PATH_SIZE];
99 extern char udev_root[PATH_SIZE];
100 extern char udev_config_filename[PATH_SIZE];
101 extern char udev_rules_dir[PATH_SIZE];
102 extern int udev_log_priority;
104 extern void udev_config_init(void);
107 extern struct udevice *udev_device_init(struct udevice *udev);
108 extern void udev_device_cleanup(struct udevice *udev);
109 extern int udev_device_event(struct udev_rules *rules, struct udevice *udev);
110 extern dev_t udev_device_get_devt(struct udevice *udev);
113 extern char sysfs_path[PATH_SIZE];
114 extern int sysfs_init(void);
115 extern void sysfs_cleanup(void);
116 extern void sysfs_device_set_values(struct sysfs_device *dev, const char *devpath,
117 const char *subsystem, const char *driver);
118 extern struct sysfs_device *sysfs_device_get(const char *devpath);
119 extern struct sysfs_device *sysfs_device_get_parent(struct sysfs_device *dev);
120 extern struct sysfs_device *sysfs_device_get_parent_with_subsystem(struct sysfs_device *dev, const char *subsystem);
121 extern char *sysfs_attr_get_value(const char *devpath, const char *attr_name);
122 extern int sysfs_resolve_link(char *path, size_t size);
123 extern int sysfs_lookup_devpath_by_subsys_id(char *devpath, size_t len, const char *subsystem, const char *id);
126 extern int udev_node_mknod(struct udevice *udev, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid);
127 extern void udev_node_update_symlinks(struct udevice *udev, struct udevice *udev_old);
128 extern int udev_node_add(struct udevice *udev);
129 extern int udev_node_remove(struct udevice *udev);
132 extern int udev_db_add_device(struct udevice *dev);
133 extern int udev_db_delete_device(struct udevice *dev);
134 extern int udev_db_get_device(struct udevice *udev, const char *devpath);
135 extern int udev_db_get_devices_by_name(const char *name, struct list_head *name_list);
136 extern int udev_db_get_all_entries(struct list_head *name_list);
140 struct list_head node;
141 char name[PATH_SIZE];
142 unsigned int ignore_error:1;
145 extern int log_priority(const char *priority);
146 extern struct name_entry *name_list_add(struct list_head *name_list, const char *name, int sort);
147 extern struct name_entry *name_list_key_add(struct list_head *name_list, const char *key, const char *value);
148 extern int name_list_key_remove(struct list_head *name_list, const char *key);
149 extern void name_list_cleanup(struct list_head *name_list);
150 extern int add_matching_files(struct list_head *name_list, const char *dirname, const char *suffix);
151 extern uid_t lookup_user(const char *user);
152 extern gid_t lookup_group(const char *group);
154 /* udev_utils_string.c */
155 extern int string_is_true(const char *str);
156 extern void remove_trailing_chars(char *path, char c);
157 extern size_t path_encode(char *s, size_t len);
158 extern size_t path_decode(char *s);
159 extern int utf8_encoded_valid_unichar(const char *str);
160 extern int replace_chars(char *str, const char *white);
162 /* udev_utils_file.c */
163 extern int create_path(const char *path);
164 extern int delete_path(const char *path);
165 extern int file_map(const char *filename, char **buf, size_t *bufsize);
166 extern void file_unmap(void *buf, size_t bufsize);
167 extern int unlink_secure(const char *filename);
168 extern size_t buf_get_line(const char *buf, size_t buflen, size_t cur);