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.
25 #include <sys/types.h>
26 #include <sys/param.h>
29 #include "udev_sysdeps.h"
30 #define LIBUDEV_I_KNOW_THE_API_IS_SUBJECT_TO_CHANGE 1
31 #include "lib/libudev.h"
32 #include "lib/libudev-private.h"
34 #define COMMENT_CHARACTER '#'
38 #define VALUE_SIZE 128
40 #define ALLOWED_CHARS "#+-.:=@_"
41 #define ALLOWED_CHARS_FILE ALLOWED_CHARS "/"
42 #define ALLOWED_CHARS_INPUT ALLOWED_CHARS_FILE " $%?,"
44 #define DEFAULT_PARTITIONS_COUNT 15
45 #define UDEV_EVENT_TIMEOUT 180
47 /* linux/include/linux/kobject.h */
48 #define UEVENT_BUFFER_SIZE 2048
49 #define UEVENT_NUM_ENVP 32
51 #define UDEV_CTRL_SOCK_PATH "@" UDEV_PREFIX "/org/kernel/udev/udevd"
53 #define UDEV_MAX(a,b) ((a) > (b) ? (a) : (b))
62 struct list_head node; /* for device cache */
63 struct sysfs_device *parent; /* already cached parent*/
64 char devpath[PATH_SIZE];
65 char subsystem[NAME_SIZE]; /* $class, $bus, drivers, module */
66 char kernel[NAME_SIZE]; /* device instance name */
67 char kernel_number[NAME_SIZE];
68 char driver[NAME_SIZE]; /* device driver name */
75 struct sysfs_device *dev; /* points to dev_local by default */
76 struct sysfs_device dev_local;
77 struct sysfs_device *dev_parent; /* current parent device used for matching */
78 char action[NAME_SIZE];
83 struct list_head symlink_list;
85 char owner[NAME_SIZE];
87 char group[NAME_SIZE];
93 /* event processing */
94 struct list_head run_list;
96 struct list_head env_list;
97 char tmp_node[PATH_SIZE];
101 char program_result[PATH_SIZE];
107 static inline void logging_init(const char *program_name)
109 openlog(program_name, LOG_PID | LOG_CONS, LOG_DAEMON);
112 static inline void logging_msg(struct udev *udev, int priority,
113 const char *file, int line, const char *fn,
114 const char *format, va_list args)
116 vsyslog(priority, format, args);
119 static inline void logging_close(void)
125 extern struct udevice *udev_device_init(struct udev *udev);
126 extern void udev_device_cleanup(struct udevice *udevice);
127 extern dev_t udev_device_get_devt(struct udevice *udevice);
129 /* udev_device_event.c */
130 extern int udev_device_event(struct udev_rules *rules, struct udevice *udevice);
133 extern int sysfs_init(void);
134 extern void sysfs_cleanup(void);
135 extern void sysfs_device_set_values(struct udev *udev,
136 struct sysfs_device *dev, const char *devpath,
137 const char *subsystem, const char *driver);
138 extern struct sysfs_device *sysfs_device_get(struct udev *udev, const char *devpath);
139 extern struct sysfs_device *sysfs_device_get_parent(struct udev *udev, struct sysfs_device *dev);
140 extern struct sysfs_device *sysfs_device_get_parent_with_subsystem(struct udev *udev, struct sysfs_device *dev, const char *subsystem);
141 extern char *sysfs_attr_get_value(struct udev *udev, const char *devpath, const char *attr_name);
142 extern int sysfs_resolve_link(struct udev *udev, char *path, size_t size);
143 extern int sysfs_lookup_devpath_by_subsys_id(struct udev *udev, char *devpath, size_t len, const char *subsystem, const char *id);
146 extern int udev_node_mknod(struct udevice *udevice, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid);
147 extern void udev_node_update_symlinks(struct udevice *udevice, struct udevice *udev_old);
148 extern int udev_node_add(struct udevice *udevice);
149 extern int udev_node_remove(struct udevice *udevice);
152 extern int udev_db_add_device(struct udevice *udevice);
153 extern int udev_db_delete_device(struct udevice *udevice);
154 extern int udev_db_rename(struct udev *udev, const char *devpath_old, const char *devpath);
155 extern int udev_db_get_device(struct udevice *udevice, const char *devpath);
156 extern int udev_db_get_devices_by_name(struct udev *udev, const char *name, struct list_head *name_list);
157 extern int udev_db_get_all_entries(struct udev *udevconst, struct list_head *name_list);
161 struct list_head node;
162 char name[PATH_SIZE];
163 unsigned int ignore_error:1;
166 extern int log_priority(const char *priority);
167 extern struct name_entry *name_list_add(struct udev *udev, struct list_head *name_list, const char *name, int sort);
168 extern struct name_entry *name_list_key_add(struct udev *udev, struct list_head *name_list, const char *key, const char *value);
169 extern int name_list_key_remove(struct udev *udev, struct list_head *name_list, const char *key);
170 extern void name_list_cleanup(struct udev *udev, struct list_head *name_list);
171 extern int add_matching_files(struct udev *udev, struct list_head *name_list, const char *dirname, const char *suffix);
172 extern uid_t lookup_user(struct udev *udev, const char *user);
173 extern gid_t lookup_group(struct udev *udev, const char *group);
175 /* udev_utils_string.c */
176 extern int string_is_true(const char *str);
177 extern void remove_trailing_chars(char *path, char c);
178 extern size_t path_encode(char *s, size_t len);
179 extern size_t path_decode(char *s);
180 extern int utf8_encoded_valid_unichar(const char *str);
181 extern int replace_chars(char *str, const char *white);
183 /* udev_utils_file.c */
184 extern int create_path(struct udev *udev, const char *path);
185 extern int delete_path(struct udev *udev, const char *path);
186 extern int unlink_secure(struct udev *udev, const char *filename);
187 extern int file_map(const char *filename, char **buf, size_t *bufsize);
188 extern void file_unmap(void *buf, size_t bufsize);
189 extern size_t buf_get_line(const char *buf, size_t buflen, size_t cur);
191 /* udevadm commands */
192 extern int udevadm_monitor(struct udev *udev, int argc, char *argv[]);
193 extern int udevadm_info(struct udev *udev, int argc, char *argv[]);
194 extern int udevadm_control(struct udev *udev, int argc, char *argv[]);
195 extern int udevadm_trigger(struct udev *udev, int argc, char *argv[]);
196 extern int udevadm_settle(struct udev *udev, int argc, char *argv[]);
197 extern int udevadm_test(struct udev *udev, int argc, char *argv[]);