X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev.h;h=95a2b88f5ee10266c8d801696dc40cd1f58187f6;hp=6798f136663275fc05198fbc3def8d39b0023781;hb=21dabee8a78bdde10bdb23bd3002c8aa09a161d3;hpb=f3b04a2e0a041aa5546284c5bfc2022ab3e8b15f diff --git a/udev.h b/udev.h index 6798f1366..95a2b88f5 100644 --- a/udev.h +++ b/udev.h @@ -1,9 +1,8 @@ /* * udev.h * - * Userspace devfs - * * Copyright (C) 2003 Greg Kroah-Hartman + * Copyright (C) 2003-2005 Kay Sievers * * 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 @@ -20,79 +19,144 @@ * */ -#ifndef UDEV_H -#define UDEV_H +#ifndef _UDEV_H_ +#define _UDEV_H_ -#include "libsysfs/libsysfs.h" -#include +#include +#include -#ifdef DEBUG -#include -#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 -