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 '#'
32 #define PATH_TO_NAME_CHAR '@'
36 #define VALUE_SIZE 128
38 #define DEFAULT_PARTITIONS_COUNT 15
39 #define UDEV_ALARM_TIMEOUT 180
41 #define UDEV_MAX(a,b) ((a) > (b) ? (a) : (b))
47 #define DB_DIR ".udev/db"
52 struct list_head node; /* for device cache */
53 struct sysfs_device *parent; /* already cached parent*/
54 char devpath[PATH_SIZE];
55 char subsystem[NAME_SIZE]; /* $class, $bus, drivers, module */
56 char kernel[NAME_SIZE]; /* device instance name */
57 char kernel_number[NAME_SIZE];
58 char driver[NAME_SIZE]; /* device driver name */
63 struct sysfs_device *dev; /* points to dev_local by default */
64 struct sysfs_device dev_local;
65 struct sysfs_device *dev_parent; /* current parent device used for matching */
66 char action[NAME_SIZE];
70 struct list_head symlink_list;
72 char owner[NAME_SIZE];
74 char group[NAME_SIZE];
80 /* event processing */
81 struct list_head run_list;
83 struct list_head env_list;
84 char tmp_node[PATH_SIZE];
88 char program_result[PATH_SIZE];
93 extern char udev_root[PATH_SIZE];
94 extern char udev_config_filename[PATH_SIZE];
95 extern char udev_rules_dir[PATH_SIZE];
96 extern int udev_log_priority;
98 extern void udev_config_init(void);
101 extern struct udevice *udev_device_init(void);
102 extern void udev_device_cleanup(struct udevice *udev);
103 extern int udev_device_event(struct udev_rules *rules, struct udevice *udev);
104 extern dev_t udev_device_get_devt(struct udevice *udev);
107 extern char sysfs_path[PATH_SIZE];
108 extern int sysfs_init(void);
109 extern void sysfs_cleanup(void);
110 extern void sysfs_device_set_values(struct sysfs_device *dev, const char *devpath,
111 const char *subsystem, const char *driver);
112 extern struct sysfs_device *sysfs_device_get(const char *devpath);
113 extern struct sysfs_device *sysfs_device_get_parent(struct sysfs_device *dev);
114 extern struct sysfs_device *sysfs_device_get_parent_with_subsystem(struct sysfs_device *dev, const char *subsystem);
115 extern char *sysfs_attr_get_value(const char *devpath, const char *attr_name);
116 extern int sysfs_resolve_link(char *path, size_t size);
119 extern int udev_node_mknod(struct udevice *udev, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid);
120 extern int udev_node_add(struct udevice *udev, struct udevice *udev_old);
121 extern void udev_node_remove_symlinks(struct udevice *udev);
122 extern int udev_node_remove(struct udevice *udev);
125 extern int udev_db_add_device(struct udevice *dev);
126 extern int udev_db_delete_device(struct udevice *dev);
127 extern int udev_db_get_device(struct udevice *udev, const char *devpath);
128 extern int udev_db_lookup_name(const char *name, char *devpath, size_t len);
129 extern int udev_db_get_all_entries(struct list_head *name_list);
133 struct list_head node;
134 char name[PATH_SIZE];
136 extern int log_priority(const char *priority);
137 extern char *name_list_add(struct list_head *name_list, const char *name, int sort);
138 extern char *name_list_key_add(struct list_head *name_list, const char *key, const char *value);
139 extern void name_list_cleanup(struct list_head *name_list);
140 extern int add_matching_files(struct list_head *name_list, const char *dirname, const char *suffix);
141 extern uid_t lookup_user(const char *user);
142 extern gid_t lookup_group(const char *group);
144 /* udev_utils_string.c */
145 extern int string_is_true(const char *str);
146 extern void remove_trailing_chars(char *path, char c);
147 extern int utf8_encoded_valid_unichar(const char *str);
148 extern int replace_untrusted_chars(char *str);
150 /* udev_utils_file.c */
151 extern int create_path(const char *path);
152 extern int delete_path(const char *path);
153 extern int file_map(const char *filename, char **buf, size_t *bufsize);
154 extern void file_unmap(void *buf, size_t bufsize);
155 extern int unlink_secure(const char *filename);
156 extern size_t buf_get_line(const char *buf, size_t buflen, size_t cur);
158 /* udev_utils_run.c */
159 extern int pass_env_to_socket(const char *name, const char *devpath, const char *action);
160 extern int run_program(const char *command, const char *subsystem,
161 char *result, size_t ressize, size_t *reslen, int log);