/* * libudev - interface to udev device information * * Copyright (C) 2008-2009 Kay Sievers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. */ #ifndef _LIBUDEV_PRIVATE_H_ #define _LIBUDEV_PRIVATE_H_ #include #include "libudev.h" #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) static inline void __attribute__ ((format(printf, 2, 3))) udev_log_null(struct udev *udev, const char *format, ...) {} #ifdef USE_LOG # ifdef DEBUG # define dbg(udev, arg...) udev_log(udev, LOG_DEBUG, __FILE__, __LINE__, __FUNCTION__, ## arg) # else # define dbg(udev, arg...) udev_log_null(udev, ## arg) # endif # define info(udev, arg...) udev_log(udev, LOG_INFO, __FILE__, __LINE__, __FUNCTION__, ## arg) # define err(udev, arg...) udev_log(udev, LOG_ERR, __FILE__, __LINE__, __FUNCTION__, ## arg) #else # define dbg(udev, arg...) udev_log_null(udev, ## arg) # define info(udev, arg...) udev_log_null(udev, ## arg) # define err(udev, arg...) udev_log_null(udev, ## arg) #endif /* libudev */ void udev_log(struct udev *udev, int priority, const char *file, int line, const char *fn, const char *format, ...) __attribute__ ((format(printf, 6, 7))); const char *udev_get_rules_path(struct udev *udev); int udev_get_run(struct udev *udev); struct udev_list_entry *udev_add_property(struct udev *udev, const char *key, const char *value); struct udev_list_entry *udev_get_properties_list_entry(struct udev *udev); /* libudev-device */ struct udev_device *udev_device_new(struct udev *udev); int udev_device_set_syspath(struct udev_device *udev_device, const char *syspath); int udev_device_set_subsystem(struct udev_device *udev_device, const char *subsystem); int udev_device_set_devtype(struct udev_device *udev_device, const char *devtype); int udev_device_set_devnode(struct udev_device *udev_device, const char *devnode); int udev_device_add_devlink(struct udev_device *udev_device, const char *devlink); void udev_device_cleanup_devlinks_list(struct udev_device *udev_device); struct udev_list_entry *udev_device_add_property(struct udev_device *udev_device, const char *key, const char *value); struct udev_list_entry *udev_device_add_property_from_string(struct udev_device *udev_device, const char *property); char **udev_device_get_properties_envp(struct udev_device *udev_device); ssize_t udev_device_get_properties_monitor_buf(struct udev_device *udev_device, const char **buf); int udev_device_read_db(struct udev_device *udev_device); int udev_device_read_uevent_file(struct udev_device *udev_device); int udev_device_set_action(struct udev_device *udev_device, const char *action); int udev_device_set_driver(struct udev_device *udev_device, const char *driver); const char *udev_device_get_devpath_old(struct udev_device *udev_device); int udev_device_set_devpath_old(struct udev_device *udev_device, const char *devpath_old); const char *udev_device_get_knodename(struct udev_device *udev_device); int udev_device_set_knodename(struct udev_device *udev_device, const char *knodename); int udev_device_get_timeout(struct udev_device *udev_device); int udev_device_set_timeout(struct udev_device *udev_device, int timeout); int udev_device_get_event_timeout(struct udev_device *udev_device); int udev_device_set_event_timeout(struct udev_device *udev_device, int event_timeout); int udev_device_set_devnum(struct udev_device *udev_device, dev_t devnum); int udev_device_set_seqnum(struct udev_device *udev_device, unsigned long long int seqnum); int udev_device_get_num_fake_partitions(struct udev_device *udev_device); int udev_device_set_num_fake_partitions(struct udev_device *udev_device, int num); int udev_device_get_devlink_priority(struct udev_device *udev_device); int udev_device_set_devlink_priority(struct udev_device *udev_device, int prio); int udev_device_get_ignore_remove(struct udev_device *udev_device); int udev_device_set_ignore_remove(struct udev_device *udev_device, int ignore); int udev_device_get_watch_handle(struct udev_device *udev_device); int udev_device_set_watch_handle(struct udev_device *udev_device, int handle); void udev_device_set_info_loaded(struct udev_device *device); /* libudev-device-db-write.c */ int udev_device_update_db(struct udev_device *udev_device); int udev_device_delete_db(struct udev_device *udev_device); int udev_device_rename_db(struct udev_device *udev_device, const char *devpath); /* libudev-monitor - netlink/unix socket communication */ int udev_monitor_disconnect(struct udev_monitor *udev_monitor); int udev_monitor_allow_unicast_sender(struct udev_monitor *udev_monitor, struct udev_monitor *sender); int udev_monitor_send_device(struct udev_monitor *udev_monitor, struct udev_monitor *destination, struct udev_device *udev_device); int udev_monitor_set_receive_buffer_size(struct udev_monitor *udev_monitor, int size); /* libudev-ctrl - daemon runtime setup */ struct udev_ctrl; struct udev_ctrl *udev_ctrl_new_from_socket(struct udev *udev, const char *socket_path); int udev_ctrl_enable_receiving(struct udev_ctrl *uctrl); struct udev_ctrl *udev_ctrl_ref(struct udev_ctrl *uctrl); void udev_ctrl_unref(struct udev_ctrl *uctrl); struct udev *udev_ctrl_get_udev(struct udev_ctrl *uctrl); int udev_ctrl_get_fd(struct udev_ctrl *uctrl); int udev_ctrl_send_set_log_level(struct udev_ctrl *uctrl, int priority); int udev_ctrl_send_stop_exec_queue(struct udev_ctrl *uctrl); int udev_ctrl_send_start_exec_queue(struct udev_ctrl *uctrl); int udev_ctrl_send_reload_rules(struct udev_ctrl *uctrl); int udev_ctrl_send_settle(struct udev_ctrl *uctrl); int udev_ctrl_send_set_env(struct udev_ctrl *uctrl, const char *key); int udev_ctrl_send_set_max_childs(struct udev_ctrl *uctrl, int count); struct udev_ctrl_msg; struct udev_ctrl_msg *udev_ctrl_msg(struct udev_ctrl *uctrl); struct udev_ctrl_msg *udev_ctrl_receive_msg(struct udev_ctrl *uctrl); struct udev_ctrl_msg *udev_ctrl_msg_ref(struct udev_ctrl_msg *ctrl_msg); void udev_ctrl_msg_unref(struct udev_ctrl_msg *ctrl_msg); int udev_ctrl_get_set_log_level(struct udev_ctrl_msg *ctrl_msg); int udev_ctrl_get_stop_exec_queue(struct udev_ctrl_msg *ctrl_msg); int udev_ctrl_get_start_exec_queue(struct udev_ctrl_msg *ctrl_msg); int udev_ctrl_get_reload_rules(struct udev_ctrl_msg *ctrl_msg); pid_t udev_ctrl_get_settle(struct udev_ctrl_msg *ctrl_msg); const char *udev_ctrl_get_set_env(struct udev_ctrl_msg *ctrl_msg); int udev_ctrl_get_set_max_childs(struct udev_ctrl_msg *ctrl_msg); /* libudev-list */ struct udev_list_node { struct udev_list_node *next, *prev; }; void udev_list_init(struct udev_list_node *list); int udev_list_is_empty(struct udev_list_node *list); void udev_list_node_append(struct udev_list_node *new, struct udev_list_node *list); void udev_list_node_remove(struct udev_list_node *entry); #define udev_list_node_foreach(node, list) \ for (node = (list)->next; \ node != list; \ node = (node)->next) #define udev_list_node_foreach_safe(node, tmp, list) \ for (node = (list)->next, tmp = (node)->next; \ node != list; \ node = tmp, tmp = (tmp)->next) struct udev_list_entry *udev_list_entry_add(struct udev *udev, struct udev_list_node *list, const char *name, const char *value, int unique, int sort); void udev_list_entry_delete(struct udev_list_entry *entry); void udev_list_entry_remove(struct udev_list_entry *entry); void udev_list_entry_insert_before(struct udev_list_entry *new, struct udev_list_entry *entry); void udev_list_entry_append(struct udev_list_entry *new, struct udev_list_node *list); void udev_list_cleanup_entries(struct udev *udev, struct udev_list_node *name_list); struct udev_list_entry *udev_list_get_entry(struct udev_list_node *list); int udev_list_entry_get_flag(struct udev_list_entry *list_entry); void udev_list_entry_set_flag(struct udev_list_entry *list_entry, int flag); #define udev_list_entry_foreach_safe(entry, tmp, first) \ for (entry = first, tmp = udev_list_entry_get_next(entry); \ entry != NULL; \ entry = tmp, tmp = udev_list_entry_get_next(tmp)) /* libudev-queue */ unsigned long long int udev_get_kernel_seqnum(struct udev *udev); int udev_queue_read_seqnum(FILE *queue_file, unsigned long long int *seqnum); ssize_t udev_queue_read_devpath(FILE *queue_file, char *devpath, size_t size); ssize_t udev_queue_skip_devpath(FILE *queue_file); /* libudev-queue-export */ struct udev_queue_export *udev_queue_export_new(struct udev *udev); void udev_queue_export_unref(struct udev_queue_export *udev_queue_export); void udev_queue_export_cleanup(struct udev_queue_export *udev_queue_export); int udev_queue_export_device_queued(struct udev_queue_export *udev_queue_export, struct udev_device *udev_device); int udev_queue_export_device_finished(struct udev_queue_export *udev_queue_export, struct udev_device *udev_device); int udev_queue_export_device_failed(struct udev_queue_export *udev_queue_export, struct udev_device *udev_device); /* libudev-utils */ #define UTIL_PATH_SIZE 1024 #define UTIL_LINE_SIZE 2048 #define UTIL_NAME_SIZE 512 #define UDEV_ALLOWED_CHARS_INPUT "/ $%?," ssize_t util_get_sys_subsystem(struct udev *udev, const char *syspath, char *subsystem, size_t size); ssize_t util_get_sys_driver(struct udev *udev, const char *syspath, char *driver, size_t size); int util_resolve_sys_link(struct udev *udev, char *syspath, size_t size); int util_log_priority(const char *priority); size_t util_path_encode(const char *src, char *dest, size_t size); size_t util_path_decode(char *s); void util_remove_trailing_chars(char *path, char c); size_t util_strpcpy(char **dest, size_t size, const char *src); size_t util_strpcpyl(char **dest, size_t size, const char *src, ...) __attribute__ ((sentinel)); size_t util_strscpy(char *dest, size_t size, const char *src); size_t util_strscpyl(char *dest, size_t size, const char *src, ...) __attribute__ ((sentinel)); int udev_util_replace_whitespace(const char *str, char *to, size_t len); int udev_util_replace_chars(char *str, const char *white); int udev_util_encode_string(const char *str, char *str_enc, size_t len); void util_set_fd_cloexec(int fd); unsigned int util_string_hash32(const char *str); #endif