/*
* udev.h
*
- * Userspace devfs
- *
* Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (C) 2003-2005 Kay Sievers <kay.sievers@vrfy.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
*
*/
-#ifndef UDEV_H
-#define UDEV_H
+#ifndef _UDEV_H_
+#define _UDEV_H_
-#include "libsysfs/libsysfs.h"
-#include <limits.h>
+#include <sys/types.h>
+#include <sys/param.h>
-#ifdef DEBUG
-#include <syslog.h>
-#define dbg(format, arg...) \
- do { \
- log_message (LOG_DEBUG , "%s: " format , __FUNCTION__ , ## arg); \
- } while (0)
-#else
- #define dbg(format, arg...) do { } while (0)
-#endif
+#include "list.h"
+#include "logging.h"
+#include "udev_libc_wrapper.h"
+#include "udev_version.h"
-/* Parser needs it's own debugging statement, we usually don't care about this at all */
-#ifdef DEBUG_PARSER
-#define dbg_parse(format, arg...) \
- do { \
- log_message (LOG_DEBUG , "%s: " format , __FUNCTION__ , ## arg); \
- } while (0)
-#else
- #define dbg_parse(format, arg...) do { } while (0)
-#endif
+#define COMMENT_CHARACTER '#'
+#define PATH_TO_NAME_CHAR '@'
+#define LINE_SIZE 512
+#define PATH_SIZE 512
+#define NAME_SIZE 128
+#define VALUE_SIZE 128
+#define DEFAULT_PARTITIONS_COUNT 15
+#define UDEV_ALARM_TIMEOUT 180
-extern int log_message (int level, const char *format, ...)
- __attribute__ ((format (printf, 2, 3)));
+#define UDEV_MAX(a,b) ((a) > (b) ? (a) : (b))
+/* pipes */
+#define READ_END 0
+#define WRITE_END 1
-/* filenames for the config and database files */
-#define UDEV_DB "udev.tdb"
-#define UDEV_CONFIG_PERMISSION_FILE "udev.permissions"
-#define UDEV_CONFIG_FILE "udev.config"
+#define DB_DIR ".udev/db"
-#define NAME_SIZE 100
-#define OWNER_SIZE 30
-#define GROUP_SIZE 30
+struct udev_rules;
+
+struct sysfs_device {
+ struct list_head node; /* for device cache */
+ struct sysfs_device *parent; /* already cached parent*/
+ char devpath[PATH_SIZE];
+ char subsystem[NAME_SIZE]; /* $class/$bus/"drivers" */
+ char kernel_name[NAME_SIZE]; /* device instance name */
+ char kernel_number[NAME_SIZE];
+ char driver[NAME_SIZE]; /* device driver name */
+};
struct udevice {
- char name[NAME_SIZE];
- char owner[OWNER_SIZE];
- char group[GROUP_SIZE];
- char type;
- int major;
- int minor;
+ /* device event */
+ struct sysfs_device *dev; /* points to dev_local by default */
+ struct sysfs_device dev_local;
+ struct sysfs_device *dev_parent; /* current parent device used for matching */
+ char action[NAME_SIZE];
+
+ /* node */
+ char name[PATH_SIZE];
+ struct list_head symlink_list;
+ int symlink_final;
+ char owner[NAME_SIZE];
+ int owner_final;
+ char group[NAME_SIZE];
+ int group_final;
mode_t mode;
-
- /* fields that help us in building strings */
- unsigned char bus_id[SYSFS_NAME_LEN];
- unsigned char callout_value[NAME_SIZE];
- unsigned char kernel_number[NAME_SIZE];
-
+ int mode_final;
+ dev_t devt;
+
+ /* event processing */
+ struct list_head run_list;
+ int run_final;
+ struct list_head env_list;
+ char tmp_node[PATH_SIZE];
+ int partitions;
+ int ignore_device;
+ int ignore_remove;
+ char program_result[PATH_SIZE];
+ int test_run;
};
-#define strfieldcpy(to, from) \
-do { \
- to[sizeof(to)-1] = '\0'; \
- strncpy(to, from, sizeof(to)-1); \
-} while (0)
-
-extern int udev_add_device(char *path, char *subsystem);
-extern int udev_remove_device(char *path, char *subsystem);
-
-extern char **main_argv;
-extern char **main_envp;
-extern char sysfs_path[SYSFS_PATH_MAX];
-extern char *udev_config_dir;
-extern char *udev_root;
-extern char udev_db_filename[PATH_MAX+NAME_MAX];
-extern char udev_config_permission_filename[PATH_MAX+NAME_MAX];
-extern char udev_config_filename[PATH_MAX+NAME_MAX];
+/* udev_config.c */
+extern char udev_root[PATH_SIZE];
+extern char udev_config_filename[PATH_SIZE];
+extern char udev_rules_filename[PATH_SIZE];
+extern int udev_log_priority;
+extern int udev_run;
+extern void udev_config_init(void);
+
+/* udev_device.c */
+extern struct udevice *udev_device_init(void);
+extern void udev_device_cleanup(struct udevice *udev);
+extern int udev_device_event(struct udev_rules *rules, struct udevice *udev);
+extern dev_t udev_device_get_devt(struct udevice *udev);
+
+/* udev_sysfs.c */
+extern char sysfs_path[PATH_SIZE];
+extern int sysfs_init(void);
+extern void sysfs_cleanup(void);
+extern void sysfs_device_set_values(struct sysfs_device *dev, const char *devpath, const char *subsystem);
+extern struct sysfs_device *sysfs_device_get(const char *devpath);
+extern struct sysfs_device *sysfs_device_get_parent(struct sysfs_device *dev);
+extern struct sysfs_device *sysfs_device_get_parent_with_subsystem(struct sysfs_device *dev, const char *subsystem);
+extern char *sysfs_attr_get_value(const char *devpath, const char *attr_name);
+
+/* udev_node.c */
+extern int udev_node_mknod(struct udevice *udev, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid);
+extern int udev_node_add(struct udevice *udev, struct udevice *udev_old);
+extern void udev_node_remove_symlinks(struct udevice *udev);
+extern int udev_node_remove(struct udevice *udev);
+
+/* udev_db.c */
+extern int udev_db_add_device(struct udevice *dev);
+extern int udev_db_delete_device(struct udevice *dev);
+extern int udev_db_get_device(struct udevice *udev, const char *devpath);
+extern int udev_db_lookup_name(const char *name, char *devpath, size_t len);
+extern int udev_db_get_all_entries(struct list_head *name_list);
+
+/* udev_utils.c */
+struct name_entry {
+ struct list_head node;
+ char name[PATH_SIZE];
+};
+extern int log_priority(const char *priority);
+extern char *name_list_add(struct list_head *name_list, const char *name, int sort);
+extern char *name_list_key_add(struct list_head *name_list, const char *key, const char *value);
+extern void name_list_cleanup(struct list_head *name_list);
+extern int add_matching_files(struct list_head *name_list, const char *dirname, const char *suffix);
+
+/* udev_utils_string.c */
+extern int strcmp_pattern(const char *p, const char *s);
+extern int string_is_true(const char *str);
+extern void remove_trailing_chars(char *path, char c);
+extern int utf8_encoded_valid_unichar(const char *str);
+extern int replace_untrusted_chars(char *str);
+
+/* udev_utils_file.c */
+extern int create_path(const char *path);
+extern int delete_path(const char *path);
+extern int file_map(const char *filename, char **buf, size_t *bufsize);
+extern void file_unmap(void *buf, size_t bufsize);
+extern int unlink_secure(const char *filename);
+extern size_t buf_get_line(const char *buf, size_t buflen, size_t cur);
+
+/* udev_utils_run.c */
+extern int pass_env_to_socket(const char *name, const char *devpath, const char *action);
+extern int run_program(const char *command, const char *subsystem,
+ char *result, size_t ressize, size_t *reslen, int log);
#endif
-
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