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Diffstat (limited to 'udev/udev.h')
| -rw-r--r-- | udev/udev.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/udev/udev.h b/udev/udev.h new file mode 100644 index 0000000000..5ecef4abbd --- /dev/null +++ b/udev/udev.h @@ -0,0 +1,184 @@ +/* + * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com> + * Copyright (C) 2003-2006 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 + * Free Software Foundation version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#ifndef _UDEV_H_ +#define _UDEV_H_ + +#include <sys/types.h> +#include <sys/param.h> + +#include "list.h" +#include "logging.h" +#include "udev_sysdeps.h" +#include "udev_version.h" + +#define COMMENT_CHARACTER '#' +#define LINE_SIZE 512 +#define PATH_SIZE 512 +#define NAME_SIZE 256 +#define VALUE_SIZE 128 + +#define ALLOWED_CHARS "#+-.:=@_" +#define ALLOWED_CHARS_FILE ALLOWED_CHARS "/" +#define ALLOWED_CHARS_INPUT ALLOWED_CHARS_FILE " $%?," + +#define DEFAULT_PARTITIONS_COUNT 15 +#define UDEV_EVENT_TIMEOUT 180 + +#define UDEV_MAX(a,b) ((a) > (b) ? (a) : (b)) + +/* pipes */ +#define READ_END 0 +#define WRITE_END 1 + +#define UDEV_ROOT "/dev" +#define DB_DIR ".udev/db" +#define DB_NAME_INDEX_DIR ".udev/names" +#define RULES_LIB_DIR "/lib/udev/rules.d" +#define RULES_DYN_DIR ".udev/rules.d" +#define RULES_ETC_DIR "/etc/udev/rules.d" + +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, module */ + char kernel[NAME_SIZE]; /* device instance name */ + char kernel_number[NAME_SIZE]; + char driver[NAME_SIZE]; /* device driver name */ +}; + +struct udevice { + /* 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]; + char *devpath_old; + + /* 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; + 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 link_priority; + int event_timeout; + int test_run; +}; + +/* udev_config.c */ +extern char udev_root[PATH_SIZE]; +extern char udev_config_filename[PATH_SIZE]; +extern char udev_rules_dir[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(struct udevice *udev); +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, const char *driver); +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); +extern int sysfs_resolve_link(char *path, size_t size); +extern int sysfs_lookup_devpath_by_subsys_id(char *devpath, size_t len, const char *subsystem, const char *id); + +/* 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 void udev_node_update_symlinks(struct udevice *udev, struct udevice *udev_old); +extern int udev_node_add(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_rename(const char *devpath_old, const char *devpath); +extern int udev_db_get_device(struct udevice *udev, const char *devpath); +extern int udev_db_get_devices_by_name(const char *name, struct list_head *name_list); +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]; + unsigned int ignore_error:1; +}; + +extern int log_priority(const char *priority); +extern struct name_entry *name_list_add(struct list_head *name_list, const char *name, int sort); +extern struct name_entry *name_list_key_add(struct list_head *name_list, const char *key, const char *value); +extern int name_list_key_remove(struct list_head *name_list, const char *key); +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); +extern uid_t lookup_user(const char *user); +extern gid_t lookup_group(const char *group); + +/* udev_utils_string.c */ +extern int string_is_true(const char *str); +extern void remove_trailing_chars(char *path, char c); +extern size_t path_encode(char *s, size_t len); +extern size_t path_decode(char *s); +extern int utf8_encoded_valid_unichar(const char *str); +extern int replace_chars(char *str, const char *white); + +/* 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 commands */ +extern int udevmonitor(int argc, char *argv[], char *envp[]); +extern int udevinfo(int argc, char *argv[], char *envp[]); +extern int udevcontrol(int argc, char *argv[], char *envp[]); +extern int udevtrigger(int argc, char *argv[], char *envp[]); +extern int udevsettle(int argc, char *argv[], char *envp[]); +extern int udevtest(int argc, char *argv[], char *envp[]); + +#endif |