/* * libudev - interface to udev device information * * Copyright (C) 2008-2012 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 #include #include #include "libudev.h" #include "macro.h" #include "util.h" #include "mkdir.h" #define READ_END 0 #define WRITE_END 1 /* avoid (sometimes expensive) calculations of parameters for debug output */ #define udev_log_cond(udev, prio, arg...) \ do { \ if (udev_get_log_priority(udev) >= prio) \ udev_log(udev, prio, __FILE__, __LINE__, __FUNCTION__, ## arg); \ } while (0) #define udev_dbg(udev, arg...) udev_log_cond(udev, LOG_DEBUG, ## arg) #define udev_info(udev, arg...) udev_log_cond(udev, LOG_INFO, ## arg) #define udev_err(udev, arg...) udev_log_cond(udev, LOG_ERR, ## arg) /* libudev.c */ void udev_log(struct udev *udev, int priority, const char *file, int line, const char *fn, const char *format, ...) __attribute__((format(printf, 6, 7))); int udev_get_rules_path(struct udev *udev, char **path[], unsigned long long *ts_usec[]); 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.c */ struct udev_device *udev_device_new(struct udev *udev); mode_t udev_device_get_devnode_mode(struct udev_device *udev_device); int udev_device_set_syspath(struct udev_device *udev_device, const char *syspath); 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, int unique); 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); void udev_device_add_property_from_string_parse(struct udev_device *udev_device, const char *property); int udev_device_add_property_from_string_parse_finish(struct udev_device *udev_device); 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, const char *dbfile); int udev_device_read_uevent_file(struct udev_device *udev_device); int udev_device_set_action(struct udev_device *udev_device, const char *action); const char *udev_device_get_devpath_old(struct udev_device *udev_device); const char *udev_device_get_id_filename(struct udev_device *udev_device); void udev_device_set_is_initialized(struct udev_device *udev_device); int udev_device_add_tag(struct udev_device *udev_device, const char *tag); void udev_device_cleanup_tags_list(struct udev_device *udev_device); unsigned long long udev_device_get_usec_initialized(struct udev_device *udev_device); void udev_device_set_usec_initialized(struct udev_device *udev_device, unsigned long long usec_initialized); 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_watch_handle(struct udev_device *udev_device); int udev_device_set_watch_handle(struct udev_device *udev_device, int handle); int udev_device_get_ifindex(struct udev_device *udev_device); void udev_device_set_info_loaded(struct udev_device *device); bool udev_device_get_db_persist(struct udev_device *udev_device); void udev_device_set_db_persist(struct udev_device *udev_device); /* libudev-device-private.c */ int udev_device_update_db(struct udev_device *udev_device); int udev_device_delete_db(struct udev_device *udev_device); int udev_device_tag_index(struct udev_device *dev, struct udev_device *dev_old, bool add); /* libudev-monitor.c - 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); struct udev_monitor *udev_monitor_new_from_netlink_fd(struct udev *udev, const char *name, int fd); /* libudev-list.c */ struct udev_list_node { struct udev_list_node *next, *prev; }; struct udev_list { struct udev *udev; struct udev_list_node node; struct udev_list_entry **entries; unsigned int entries_cur; unsigned int entries_max; bool unique; }; #define UDEV_LIST(list) struct udev_list_node list = { &(list), &(list) } void udev_list_node_init(struct udev_list_node *list); int udev_list_node_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) void udev_list_init(struct udev *udev, struct udev_list *list, bool unique); void udev_list_cleanup(struct udev_list *list); struct udev_list_entry *udev_list_get_entry(struct udev_list *list); struct udev_list_entry *udev_list_entry_add(struct udev_list *list, const char *name, const char *value); void udev_list_entry_delete(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 *list); int udev_list_entry_get_num(struct udev_list_entry *list_entry); void udev_list_entry_set_num(struct udev_list_entry *list_entry, int num); #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.c */ 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-private.c */ struct udev_queue_export *udev_queue_export_new(struct udev *udev); struct udev_queue_export *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); /* libudev-util.c */ #define UTIL_PATH_SIZE 1024 #define UTIL_NAME_SIZE 512 #define UTIL_LINE_SIZE 16384 #define UDEV_ALLOWED_CHARS_INPUT "/ $%?," ssize_t util_get_sys_core_link_value(struct udev *udev, const char *slink, const char *syspath, char *value, 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); 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 util_replace_whitespace(const char *str, char *to, size_t len); int util_replace_chars(char *str, const char *white); unsigned int util_string_hash32(const char *key); uint64_t util_string_bloom64(const char *str); /* libudev-util-private.c */ int util_delete_path(struct udev *udev, const char *path); uid_t util_lookup_user(struct udev *udev, const char *user); gid_t util_lookup_group(struct udev *udev, const char *group); int util_resolve_subsys_kernel(struct udev *udev, const char *string, char *result, size_t maxsize, int read_value); unsigned long long ts_usec(const struct timespec *ts); unsigned long long now_usec(void); ssize_t print_kmsg(const char *fmt, ...) __attribute__((format(printf, 1, 2))); #endif