2 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
3 * Copyright (C) 2003-2008 Kay Sievers <kay.sievers@vrfy.org>
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include <sys/types.h>
25 #include <sys/param.h>
27 #include "udev_sysdeps.h"
28 #define LIBUDEV_I_KNOW_THE_API_IS_SUBJECT_TO_CHANGE 1
29 #include "lib/libudev.h"
30 #include "lib/libudev-private.h"
33 #define COMMENT_CHARACTER '#'
37 #define VALUE_SIZE 128
39 #define ALLOWED_CHARS "#+-.:=@_"
40 #define ALLOWED_CHARS_FILE ALLOWED_CHARS "/"
41 #define ALLOWED_CHARS_INPUT ALLOWED_CHARS_FILE " $%?,"
43 #define DEFAULT_PARTITIONS_COUNT 15
44 #define UDEV_EVENT_TIMEOUT 180
46 /* linux/include/linux/kobject.h */
47 #define UEVENT_BUFFER_SIZE 2048
48 #define UEVENT_NUM_ENVP 32
50 #define UDEV_CTRL_SOCK_PATH "@" UDEV_PREFIX "/org/kernel/udev/udevd"
52 #define UDEV_MAX(a,b) ((a) > (b) ? (a) : (b))
61 struct list_head node; /* for device cache */
62 struct sysfs_device *parent; /* already cached parent*/
63 char devpath[PATH_SIZE];
64 char subsystem[NAME_SIZE]; /* $class, $bus, drivers, module */
65 char kernel[NAME_SIZE]; /* device instance name */
66 char kernel_number[NAME_SIZE];
67 char driver[NAME_SIZE]; /* device driver name */
74 struct sysfs_device *dev; /* points to dev_local by default */
75 struct sysfs_device dev_local;
76 struct sysfs_device *dev_parent; /* current parent device used for matching */
77 char action[NAME_SIZE];
82 struct list_head symlink_list;
84 char owner[NAME_SIZE];
86 char group[NAME_SIZE];
92 /* event processing */
93 struct list_head run_list;
95 struct list_head env_list;
96 char tmp_node[PATH_SIZE];
100 char program_result[PATH_SIZE];
106 static inline void logging_init(const char *program_name)
108 openlog(program_name, LOG_PID | LOG_CONS, LOG_DAEMON);
111 static inline void logging_msg(struct udev *udev, int priority,
112 const char *file, int line, const char *fn,
113 const char *format, va_list args)
115 vsyslog(priority, format, args);
118 static inline void logging_close(void)
124 extern struct udevice *udev_device_init(struct udev *udev);
125 extern void udev_device_cleanup(struct udevice *udevice);
126 extern dev_t udev_device_get_devt(struct udevice *udevice);
128 /* udev_device_event.c */
129 extern int udev_device_event(struct udev_rules *rules, struct udevice *udevice);
132 extern int sysfs_init(void);
133 extern void sysfs_cleanup(void);
134 extern void sysfs_device_set_values(struct udev *udev,
135 struct sysfs_device *dev, const char *devpath,
136 const char *subsystem, const char *driver);
137 extern struct sysfs_device *sysfs_device_get(struct udev *udev, const char *devpath);
138 extern struct sysfs_device *sysfs_device_get_parent(struct udev *udev, struct sysfs_device *dev);
139 extern struct sysfs_device *sysfs_device_get_parent_with_subsystem(struct udev *udev, struct sysfs_device *dev, const char *subsystem);
140 extern char *sysfs_attr_get_value(struct udev *udev, const char *devpath, const char *attr_name);
141 extern int sysfs_resolve_link(struct udev *udev, char *path, size_t size);
142 extern int sysfs_lookup_devpath_by_subsys_id(struct udev *udev, char *devpath, size_t len, const char *subsystem, const char *id);
145 extern int udev_node_mknod(struct udevice *udevice, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid);
146 extern void udev_node_update_symlinks(struct udevice *udevice, struct udevice *udev_old);
147 extern int udev_node_add(struct udevice *udevice);
148 extern int udev_node_remove(struct udevice *udevice);
151 extern int udev_db_add_device(struct udevice *udevice);
152 extern int udev_db_delete_device(struct udevice *udevice);
153 extern int udev_db_rename(struct udev *udev, const char *devpath_old, const char *devpath);
154 extern int udev_db_get_device(struct udevice *udevice, const char *devpath);
155 extern int udev_db_get_devices_by_name(struct udev *udev, const char *name, struct list_head *name_list);
156 extern int udev_db_get_all_entries(struct udev *udevconst, struct list_head *name_list);
160 struct list_head node;
161 char name[PATH_SIZE];
162 unsigned int ignore_error:1;
165 extern int log_priority(const char *priority);
166 extern struct name_entry *name_list_add(struct udev *udev, struct list_head *name_list, const char *name, int sort);
167 extern struct name_entry *name_list_key_add(struct udev *udev, struct list_head *name_list, const char *key, const char *value);
168 extern int name_list_key_remove(struct udev *udev, struct list_head *name_list, const char *key);
169 extern void name_list_cleanup(struct udev *udev, struct list_head *name_list);
170 extern int add_matching_files(struct udev *udev, struct list_head *name_list, const char *dirname, const char *suffix);
171 extern uid_t lookup_user(struct udev *udev, const char *user);
172 extern gid_t lookup_group(struct udev *udev, const char *group);
174 /* udev_utils_string.c */
175 extern int string_is_true(const char *str);
176 extern void remove_trailing_chars(char *path, char c);
177 extern size_t path_encode(char *s, size_t len);
178 extern size_t path_decode(char *s);
179 extern int replace_chars(char *str, const char *white);
181 /* udev_utils_file.c */
182 extern int create_path(struct udev *udev, const char *path);
183 extern int delete_path(struct udev *udev, const char *path);
184 extern int unlink_secure(struct udev *udev, const char *filename);
185 extern int file_map(const char *filename, char **buf, size_t *bufsize);
186 extern void file_unmap(void *buf, size_t bufsize);
187 extern size_t buf_get_line(const char *buf, size_t buflen, size_t cur);
189 /* udevadm commands */
190 extern int udevadm_monitor(struct udev *udev, int argc, char *argv[]);
191 extern int udevadm_info(struct udev *udev, int argc, char *argv[]);
192 extern int udevadm_control(struct udev *udev, int argc, char *argv[]);
193 extern int udevadm_trigger(struct udev *udev, int argc, char *argv[]);
194 extern int udevadm_settle(struct udev *udev, int argc, char *argv[]);
195 extern int udevadm_test(struct udev *udev, int argc, char *argv[]);