X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev.h;h=5d54b5443248c894f142169de404bad78d8f4086;hp=7c5d18a3d0968ad5dfa0756b783dbad943872749;hb=03b24b71e05d116c592b08281f8a5f0dadf6d3c7;hpb=3e4414508b409a21b023b9ca4532f62003e0db97 diff --git a/udev.h b/udev.h index 7c5d18a3d..5d54b5443 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 @@ -23,70 +22,142 @@ #ifndef _UDEV_H_ #define _UDEV_H_ +#include #include -#include "libsysfs/sysfs/libsysfs.h" -#define COMMENT_CHARACTER '#' +#include "list.h" +#include "logging.h" +#include "udev_libc_wrapper.h" +#include "udev_version.h" + +#define COMMENT_CHARACTER '#' +#define PATH_TO_NAME_CHAR '@' +#define LINE_SIZE 512 +#define NAME_SIZE 128 +#define PATH_SIZE 256 +#define USER_SIZE 32 +#define SEQNUM_SIZE 32 +#define VALUE_SIZE 128 + +#define DEFAULT_PARTITIONS_COUNT 15 +#define UDEV_ALARM_TIMEOUT 180 -#define NAME_SIZE 256 -#define OWNER_SIZE 30 -#define GROUP_SIZE 30 -#define MODE_SIZE 8 +#define UDEV_MAX(a,b) ((a) > (b) ? (a) : (b)) -#define ACTION_SIZE 32 -#define DEVPATH_SIZE 256 -#define SUBSYSTEM_SIZE 32 -#define SEQNUM_SIZE 32 +/* pipes */ +#define READ_END 0 +#define WRITE_END 1 -#define LINE_SIZE 256 +#define DB_DIR ".udev/db" -/* length of public data */ -#define UDEVICE_LEN (offsetof(struct udevice, bus_id)) +struct udev_rules; + +struct sysfs_device { + struct list_head node; /* for device cache */ + 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; - unsigned int mode; /* not mode_t due to conflicting definitions in different libcs */ - char symlink[NAME_SIZE]; + /* 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[USER_SIZE]; + int owner_final; + char group[USER_SIZE]; + int group_final; + mode_t mode; + 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 config_line; - char config_file[NAME_SIZE]; - long config_uptime; + int ignore_device; + int ignore_remove; + char program_result[PATH_SIZE]; + int test_run; +}; - /* private data that help us in building strings */ - char bus_id[SYSFS_NAME_LEN]; - char program_result[NAME_SIZE]; - char kernel_number[NAME_SIZE]; - char kernel_name[NAME_SIZE]; +/* 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 char *sysfs_attr_get_value(const char *devpath, const char *attr_name); + +/* udev_add.c */ +extern int udev_make_node(struct udevice *udev, const char *file, dev_t devt, mode_t mode, uid_t uid, gid_t gid); +extern int udev_add_device(struct udevice *udev); + +/* udev_remove.c */ +extern int udev_remove_device(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 int name_list_add(struct list_head *name_list, const char *name, int sort); +extern int 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); -extern int udev_add_device(const char *path, const char *subsystem, int fake); -extern int udev_remove_device(const char *path, const char *subsystem); -extern void udev_init_config(void); -extern int udev_start(void); -extern int __udev_hotplug(char *action, const char *devpath, - const char *subsystem); -extern int parse_get_pair(char **orig_string, char **left, char **right); -extern void dev_d_send(struct udevice *dev, const char *subsystem, - const char *devpath); - -extern char **main_argv; -extern char **main_envp; -extern char sysfs_path[SYSFS_PATH_MAX]; -extern char udev_root[PATH_MAX]; -extern char udev_db_filename[PATH_MAX+NAME_MAX]; -extern char udev_permissions_filename[PATH_MAX+NAME_MAX]; -extern char udev_config_filename[PATH_MAX+NAME_MAX]; -extern char udev_rules_filename[PATH_MAX+NAME_MAX]; -extern char default_mode_str[MODE_SIZE]; -extern char default_owner_str[OWNER_SIZE]; -extern char default_group_str[GROUP_SIZE]; -extern int udev_log; -extern int udev_sleep; -extern int udev_dev_d; +/* 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