177 lines
6.2 KiB
C
177 lines
6.2 KiB
C
/*
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* Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
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* Copyright (C) 2003-2006 Kay Sievers <kay.sievers@vrfy.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef _UDEV_H_
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#define _UDEV_H_
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#include <sys/types.h>
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#include <sys/param.h>
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#include "list.h"
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#include "logging.h"
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#include "udev_sysdeps.h"
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#define COMMENT_CHARACTER '#'
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#define LINE_SIZE 512
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#define PATH_SIZE 512
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#define NAME_SIZE 256
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#define VALUE_SIZE 128
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#define ALLOWED_CHARS "#+-.:=@_"
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#define ALLOWED_CHARS_FILE ALLOWED_CHARS "/"
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#define ALLOWED_CHARS_INPUT ALLOWED_CHARS_FILE " $%?,"
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#define DEFAULT_PARTITIONS_COUNT 15
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#define UDEV_EVENT_TIMEOUT 180
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#define UDEV_MAX(a,b) ((a) > (b) ? (a) : (b))
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/* pipes */
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#define READ_END 0
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#define WRITE_END 1
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struct udev_rules;
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struct sysfs_device {
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struct list_head node; /* for device cache */
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struct sysfs_device *parent; /* already cached parent*/
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char devpath[PATH_SIZE];
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char subsystem[NAME_SIZE]; /* $class, $bus, drivers, module */
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char kernel[NAME_SIZE]; /* device instance name */
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char kernel_number[NAME_SIZE];
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char driver[NAME_SIZE]; /* device driver name */
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};
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struct udevice {
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/* device event */
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struct sysfs_device *dev; /* points to dev_local by default */
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struct sysfs_device dev_local;
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struct sysfs_device *dev_parent; /* current parent device used for matching */
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char action[NAME_SIZE];
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char *devpath_old;
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/* node */
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char name[PATH_SIZE];
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struct list_head symlink_list;
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int symlink_final;
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char owner[NAME_SIZE];
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int owner_final;
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char group[NAME_SIZE];
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int group_final;
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mode_t mode;
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int mode_final;
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dev_t devt;
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/* event processing */
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struct list_head run_list;
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int run_final;
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struct list_head env_list;
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char tmp_node[PATH_SIZE];
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int partitions;
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int ignore_device;
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int ignore_remove;
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char program_result[PATH_SIZE];
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int link_priority;
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int event_timeout;
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int test_run;
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};
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/* udev_config.c */
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extern char udev_root[PATH_SIZE];
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extern char udev_config_filename[PATH_SIZE];
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extern char udev_rules_dir[PATH_SIZE];
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extern int udev_log_priority;
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extern int udev_run;
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extern void udev_config_init(void);
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/* udev_device.c */
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extern struct udevice *udev_device_init(struct udevice *udev);
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extern void udev_device_cleanup(struct udevice *udev);
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extern int udev_device_event(struct udev_rules *rules, struct udevice *udev);
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extern dev_t udev_device_get_devt(struct udevice *udev);
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/* udev_sysfs.c */
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extern char sysfs_path[PATH_SIZE];
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extern int sysfs_init(void);
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extern void sysfs_cleanup(void);
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extern void sysfs_device_set_values(struct sysfs_device *dev, const char *devpath,
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const char *subsystem, const char *driver);
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extern struct sysfs_device *sysfs_device_get(const char *devpath);
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extern struct sysfs_device *sysfs_device_get_parent(struct sysfs_device *dev);
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extern struct sysfs_device *sysfs_device_get_parent_with_subsystem(struct sysfs_device *dev, const char *subsystem);
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extern char *sysfs_attr_get_value(const char *devpath, const char *attr_name);
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extern int sysfs_resolve_link(char *path, size_t size);
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extern int sysfs_lookup_devpath_by_subsys_id(char *devpath, size_t len, const char *subsystem, const char *id);
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/* udev_node.c */
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extern int udev_node_mknod(struct udevice *udev, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid);
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extern void udev_node_update_symlinks(struct udevice *udev, struct udevice *udev_old);
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extern int udev_node_add(struct udevice *udev);
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extern int udev_node_remove(struct udevice *udev);
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/* udev_db.c */
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extern int udev_db_add_device(struct udevice *dev);
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extern int udev_db_delete_device(struct udevice *dev);
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extern int udev_db_rename(const char *devpath_old, const char *devpath);
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extern int udev_db_get_device(struct udevice *udev, const char *devpath);
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extern int udev_db_get_devices_by_name(const char *name, struct list_head *name_list);
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extern int udev_db_get_all_entries(struct list_head *name_list);
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/* udev_utils.c */
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struct name_entry {
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struct list_head node;
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char name[PATH_SIZE];
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unsigned int ignore_error:1;
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};
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extern int log_priority(const char *priority);
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extern struct name_entry *name_list_add(struct list_head *name_list, const char *name, int sort);
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extern struct name_entry *name_list_key_add(struct list_head *name_list, const char *key, const char *value);
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extern int name_list_key_remove(struct list_head *name_list, const char *key);
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extern void name_list_cleanup(struct list_head *name_list);
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extern int add_matching_files(struct list_head *name_list, const char *dirname, const char *suffix);
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extern uid_t lookup_user(const char *user);
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extern gid_t lookup_group(const char *group);
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/* udev_utils_string.c */
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extern int string_is_true(const char *str);
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extern void remove_trailing_chars(char *path, char c);
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extern size_t path_encode(char *s, size_t len);
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extern size_t path_decode(char *s);
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extern int utf8_encoded_valid_unichar(const char *str);
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extern int replace_chars(char *str, const char *white);
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/* udev_utils_file.c */
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extern int create_path(const char *path);
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extern int delete_path(const char *path);
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extern int file_map(const char *filename, char **buf, size_t *bufsize);
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extern void file_unmap(void *buf, size_t bufsize);
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extern int unlink_secure(const char *filename);
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extern size_t buf_get_line(const char *buf, size_t buflen, size_t cur);
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/* udev commands */
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extern int udevmonitor(int argc, char *argv[], char *envp[]);
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extern int udevinfo(int argc, char *argv[], char *envp[]);
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extern int udevcontrol(int argc, char *argv[], char *envp[]);
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extern int udevtrigger(int argc, char *argv[], char *envp[]);
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extern int udevsettle(int argc, char *argv[], char *envp[]);
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extern int udevtest(int argc, char *argv[], char *envp[]);
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#endif
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