src/libudev/libudev-private.h

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2008-2012 Kay Sievers <kay@vrfy.org>
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #ifndef _LIBUDEV_PRIVATE_H_
  21 #define _LIBUDEV_PRIVATE_H_
  22
  23 #include <signal.h>
  24 #include <stdint.h>
  25 #include <stdbool.h>
  26
  27 #include "libudev.h"
  28 #include "macro.h"
  29 #include "util.h"
  30 #include "mkdir.h"
  31 #include "strxcpyx.h"
  32
  33 #define READ_END  0
  34 #define WRITE_END 1
  35
  36 /* libudev.c */
  37 int udev_get_rules_path(struct udev *udev, char **path[], usec_t *ts_usec[]);
  38
  39 /* libudev-device.c */
  40 struct udev_device *udev_device_new_from_nulstr(struct udev *udev, char *nulstr, ssize_t buflen);
  41 struct udev_device *udev_device_new_from_synthetic_event(struct udev *udev, const char *syspath, const char *action);
  42 struct udev_device *udev_device_shallow_clone(struct udev_device *old_device);
  43 struct udev_device *udev_device_clone_with_db(struct udev_device *old_device);
  44 int udev_device_copy_properties(struct udev_device *dst, struct udev_device *src);
  45 mode_t udev_device_get_devnode_mode(struct udev_device *udev_device);
  46 uid_t udev_device_get_devnode_uid(struct udev_device *udev_device);
  47 gid_t udev_device_get_devnode_gid(struct udev_device *udev_device);
  48 int udev_device_rename(struct udev_device *udev_device, const char *new_name);
  49 int udev_device_add_devlink(struct udev_device *udev_device, const char *devlink);
  50 void udev_device_cleanup_devlinks_list(struct udev_device *udev_device);
  51 int udev_device_add_property(struct udev_device *udev_device, const char *key, const char *value);
  52 char **udev_device_get_properties_envp(struct udev_device *udev_device);
  53 ssize_t udev_device_get_properties_monitor_buf(struct udev_device *udev_device, const char **buf);
  54 const char *udev_device_get_devpath_old(struct udev_device *udev_device);
  55 const char *udev_device_get_id_filename(struct udev_device *udev_device);
  56 void udev_device_set_is_initialized(struct udev_device *udev_device);
  57 int udev_device_add_tag(struct udev_device *udev_device, const char *tag);
  58 void udev_device_remove_tag(struct udev_device *udev_device, const char *tag);
  59 void udev_device_cleanup_tags_list(struct udev_device *udev_device);
  60 usec_t udev_device_get_usec_initialized(struct udev_device *udev_device);
  61 void udev_device_ensure_usec_initialized(struct udev_device *udev_device, struct udev_device *old_device);
  62 int udev_device_get_devlink_priority(struct udev_device *udev_device);
  63 int udev_device_set_devlink_priority(struct udev_device *udev_device, int prio);
  64 int udev_device_get_watch_handle(struct udev_device *udev_device);
  65 int udev_device_set_watch_handle(struct udev_device *udev_device, int handle);
  66 int udev_device_get_ifindex(struct udev_device *udev_device);
  67 void udev_device_set_info_loaded(struct udev_device *device);
  68 bool udev_device_get_db_persist(struct udev_device *udev_device);
  69 void udev_device_set_db_persist(struct udev_device *udev_device);
  70
  71 /* libudev-device-private.c */
  72 int udev_device_update_db(struct udev_device *udev_device);
  73 int udev_device_delete_db(struct udev_device *udev_device);
  74 int udev_device_tag_index(struct udev_device *dev, struct udev_device *dev_old, bool add);
  75
  76 /* libudev-monitor.c - netlink/unix socket communication  */
  77 int udev_monitor_disconnect(struct udev_monitor *udev_monitor);
  78 int udev_monitor_allow_unicast_sender(struct udev_monitor *udev_monitor, struct udev_monitor *sender);
  79 int udev_monitor_send_device(struct udev_monitor *udev_monitor,
  80                              struct udev_monitor *destination, struct udev_device *udev_device);
  81 struct udev_monitor *udev_monitor_new_from_netlink_fd(struct udev *udev, const char *name, int fd);
  82
  83 /* libudev-list.c */
  84 struct udev_list_node {
  85         struct udev_list_node *next, *prev;
  86 };
  87 struct udev_list {
  88         struct udev *udev;
  89         struct udev_list_node node;
  90         struct udev_list_entry **entries;
  91         unsigned int entries_cur;
  92         unsigned int entries_max;
  93         bool unique;
  94 };
  95 #define UDEV_LIST(list) struct udev_list_node list = { &(list), &(list) }
  96 void udev_list_node_init(struct udev_list_node *list);
  97 int udev_list_node_is_empty(struct udev_list_node *list);
  98 void udev_list_node_append(struct udev_list_node *new, struct udev_list_node *list);
  99 void udev_list_node_remove(struct udev_list_node *entry);
 100 #define udev_list_node_foreach(node, list) \
 101         for (node = (list)->next; \
 102              node != list; \
 103              node = (node)->next)
 104 #define udev_list_node_foreach_safe(node, tmp, list) \
 105         for (node = (list)->next, tmp = (node)->next; \
 106              node != list; \
 107              node = tmp, tmp = (tmp)->next)
 108 void udev_list_init(struct udev *udev, struct udev_list *list, bool unique);
 109 void udev_list_cleanup(struct udev_list *list);
 110 struct udev_list_entry *udev_list_get_entry(struct udev_list *list);
 111 struct udev_list_entry *udev_list_entry_add(struct udev_list *list, const char *name, const char *value);
 112 void udev_list_entry_delete(struct udev_list_entry *entry);
 113 int udev_list_entry_get_num(struct udev_list_entry *list_entry);
 114 void udev_list_entry_set_num(struct udev_list_entry *list_entry, int num);
 115 #define udev_list_entry_foreach_safe(entry, tmp, first) \
 116         for (entry = first, tmp = udev_list_entry_get_next(entry); \
 117              entry != NULL; \
 118              entry = tmp, tmp = udev_list_entry_get_next(tmp))
 119
 120 /* libudev-queue.c */
 121 unsigned long long int udev_get_kernel_seqnum(struct udev *udev);
 122 int udev_queue_read_seqnum(FILE *queue_file, unsigned long long int *seqnum);
 123 ssize_t udev_queue_read_devpath(FILE *queue_file, char *devpath, size_t size);
 124 ssize_t udev_queue_skip_devpath(FILE *queue_file);
 125
 126 /* libudev-queue-private.c */
 127 struct udev_queue_export *udev_queue_export_new(struct udev *udev);
 128 struct udev_queue_export *udev_queue_export_unref(struct udev_queue_export *udev_queue_export);
 129 void udev_queue_export_cleanup(struct udev_queue_export *udev_queue_export);
 130 int udev_queue_export_device_queued(struct udev_queue_export *udev_queue_export, struct udev_device *udev_device);
 131 int udev_queue_export_device_finished(struct udev_queue_export *udev_queue_export, struct udev_device *udev_device);
 132
 133 /* libudev-util.c */
 134 #define UTIL_PATH_SIZE                      1024
 135 #define UTIL_NAME_SIZE                       512
 136 #define UTIL_LINE_SIZE                     16384
 137 #define UDEV_ALLOWED_CHARS_INPUT        "/ $%?,"
 138 ssize_t util_get_sys_core_link_value(struct udev *udev, const char *slink, const char *syspath, char *value, size_t size);
 139 int util_resolve_sys_link(struct udev *udev, char *syspath, size_t size);
 140 int util_log_priority(const char *priority);
 141 size_t util_path_encode(const char *src, char *dest, size_t size);
 142 void util_remove_trailing_chars(char *path, char c);
 143 int util_replace_whitespace(const char *str, char *to, size_t len);
 144 int util_replace_chars(char *str, const char *white);
 145 unsigned int util_string_hash32(const char *key);
 146 uint64_t util_string_bloom64(const char *str);
 147
 148 /* libudev-util-private.c */
 149 int util_resolve_subsys_kernel(struct udev *udev, const char *string, char *result, size_t maxsize, int read_value);
 150
 151 #endif