2 This file is part of systemd.
4 Copyright 2008-2012 Kay Sievers <kay@vrfy.org>
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.
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.
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/>.
20 #ifndef _LIBUDEV_PRIVATE_H_
21 #define _LIBUDEV_PRIVATE_H_
36 /* avoid (sometimes expensive) calculations of parameters for debug output */
37 #define udev_log_cond(udev, prio, arg...) \
39 if (udev_get_log_priority(udev) >= prio) \
40 udev_log(udev, prio, __FILE__, __LINE__, __FUNCTION__, ## arg); \
43 #define udev_dbg(udev, arg...) udev_log_cond(udev, LOG_DEBUG, ## arg)
44 #define udev_info(udev, arg...) udev_log_cond(udev, LOG_INFO, ## arg)
45 #define udev_err(udev, arg...) udev_log_cond(udev, LOG_ERR, ## arg)
48 void udev_log(struct udev *udev,
49 int priority, const char *file, int line, const char *fn,
50 const char *format, ...) _printf_(6, 7);
51 int udev_get_rules_path(struct udev *udev, char **path[], usec_t *ts_usec[]);
52 struct udev_list_entry *udev_add_property(struct udev *udev, const char *key, const char *value);
53 struct udev_list_entry *udev_get_properties_list_entry(struct udev *udev);
55 /* libudev-device.c */
56 struct udev_device *udev_device_new(struct udev *udev);
57 mode_t udev_device_get_devnode_mode(struct udev_device *udev_device);
58 uid_t udev_device_get_devnode_uid(struct udev_device *udev_device);
59 gid_t udev_device_get_devnode_gid(struct udev_device *udev_device);
60 int udev_device_set_subsystem(struct udev_device *udev_device, const char *subsystem);
61 int udev_device_set_syspath(struct udev_device *udev_device, const char *syspath);
62 int udev_device_add_devlink(struct udev_device *udev_device, const char *devlink);
63 void udev_device_cleanup_devlinks_list(struct udev_device *udev_device);
64 struct udev_list_entry *udev_device_add_property(struct udev_device *udev_device, const char *key, const char *value);
65 void udev_device_add_property_from_string_parse(struct udev_device *udev_device, const char *property);
66 int udev_device_add_property_from_string_parse_finish(struct udev_device *udev_device);
67 char **udev_device_get_properties_envp(struct udev_device *udev_device);
68 ssize_t udev_device_get_properties_monitor_buf(struct udev_device *udev_device, const char **buf);
69 int udev_device_read_db(struct udev_device *udev_device, const char *dbfile);
70 int udev_device_read_uevent_file(struct udev_device *udev_device);
71 int udev_device_set_action(struct udev_device *udev_device, const char *action);
72 const char *udev_device_get_devpath_old(struct udev_device *udev_device);
73 const char *udev_device_get_id_filename(struct udev_device *udev_device);
74 void udev_device_set_is_initialized(struct udev_device *udev_device);
75 int udev_device_add_tag(struct udev_device *udev_device, const char *tag);
76 void udev_device_cleanup_tags_list(struct udev_device *udev_device);
77 usec_t udev_device_get_usec_initialized(struct udev_device *udev_device);
78 void udev_device_set_usec_initialized(struct udev_device *udev_device, usec_t usec_initialized);
79 int udev_device_get_devlink_priority(struct udev_device *udev_device);
80 int udev_device_set_devlink_priority(struct udev_device *udev_device, int prio);
81 int udev_device_get_watch_handle(struct udev_device *udev_device);
82 int udev_device_set_watch_handle(struct udev_device *udev_device, int handle);
83 int udev_device_get_ifindex(struct udev_device *udev_device);
84 void udev_device_set_info_loaded(struct udev_device *device);
85 bool udev_device_get_db_persist(struct udev_device *udev_device);
86 void udev_device_set_db_persist(struct udev_device *udev_device);
88 /* libudev-device-private.c */
89 int udev_device_update_db(struct udev_device *udev_device);
90 int udev_device_delete_db(struct udev_device *udev_device);
91 int udev_device_tag_index(struct udev_device *dev, struct udev_device *dev_old, bool add);
93 /* libudev-monitor.c - netlink/unix socket communication */
94 int udev_monitor_disconnect(struct udev_monitor *udev_monitor);
95 int udev_monitor_allow_unicast_sender(struct udev_monitor *udev_monitor, struct udev_monitor *sender);
96 int udev_monitor_send_device(struct udev_monitor *udev_monitor,
97 struct udev_monitor *destination, struct udev_device *udev_device);
98 struct udev_monitor *udev_monitor_new_from_netlink_fd(struct udev *udev, const char *name, int fd);
101 struct udev_list_node {
102 struct udev_list_node *next, *prev;
106 struct udev_list_node node;
107 struct udev_list_entry **entries;
108 unsigned int entries_cur;
109 unsigned int entries_max;
112 #define UDEV_LIST(list) struct udev_list_node list = { &(list), &(list) }
113 void udev_list_node_init(struct udev_list_node *list);
114 int udev_list_node_is_empty(struct udev_list_node *list);
115 void udev_list_node_append(struct udev_list_node *new, struct udev_list_node *list);
116 void udev_list_node_remove(struct udev_list_node *entry);
117 #define udev_list_node_foreach(node, list) \
118 for (node = (list)->next; \
121 #define udev_list_node_foreach_safe(node, tmp, list) \
122 for (node = (list)->next, tmp = (node)->next; \
124 node = tmp, tmp = (tmp)->next)
125 void udev_list_init(struct udev *udev, struct udev_list *list, bool unique);
126 void udev_list_cleanup(struct udev_list *list);
127 struct udev_list_entry *udev_list_get_entry(struct udev_list *list);
128 struct udev_list_entry *udev_list_entry_add(struct udev_list *list, const char *name, const char *value);
129 void udev_list_entry_delete(struct udev_list_entry *entry);
130 int udev_list_entry_get_num(struct udev_list_entry *list_entry);
131 void udev_list_entry_set_num(struct udev_list_entry *list_entry, int num);
132 #define udev_list_entry_foreach_safe(entry, tmp, first) \
133 for (entry = first, tmp = udev_list_entry_get_next(entry); \
135 entry = tmp, tmp = udev_list_entry_get_next(tmp))
137 /* libudev-queue.c */
138 unsigned long long int udev_get_kernel_seqnum(struct udev *udev);
139 int udev_queue_read_seqnum(FILE *queue_file, unsigned long long int *seqnum);
140 ssize_t udev_queue_read_devpath(FILE *queue_file, char *devpath, size_t size);
141 ssize_t udev_queue_skip_devpath(FILE *queue_file);
143 /* libudev-queue-private.c */
144 struct udev_queue_export *udev_queue_export_new(struct udev *udev);
145 struct udev_queue_export *udev_queue_export_unref(struct udev_queue_export *udev_queue_export);
146 void udev_queue_export_cleanup(struct udev_queue_export *udev_queue_export);
147 int udev_queue_export_device_queued(struct udev_queue_export *udev_queue_export, struct udev_device *udev_device);
148 int udev_queue_export_device_finished(struct udev_queue_export *udev_queue_export, struct udev_device *udev_device);
151 bool udev_hwdb_validate(struct udev_hwdb *hwdb);
154 #define UTIL_PATH_SIZE 1024
155 #define UTIL_NAME_SIZE 512
156 #define UTIL_LINE_SIZE 16384
157 #define UDEV_ALLOWED_CHARS_INPUT "/ $%?,"
158 ssize_t util_get_sys_core_link_value(struct udev *udev, const char *slink, const char *syspath, char *value, size_t size);
159 int util_resolve_sys_link(struct udev *udev, char *syspath, size_t size);
160 int util_log_priority(const char *priority);
161 size_t util_path_encode(const char *src, char *dest, size_t size);
162 void util_remove_trailing_chars(char *path, char c);
163 int util_replace_whitespace(const char *str, char *to, size_t len);
164 int util_replace_chars(char *str, const char *white);
165 unsigned int util_string_hash32(const char *key);
166 uint64_t util_string_bloom64(const char *str);
168 /* libudev-util-private.c */
169 int util_delete_path(struct udev *udev, const char *path);
170 uid_t util_lookup_user(struct udev *udev, const char *user);
171 gid_t util_lookup_group(struct udev *udev, const char *group);
172 int util_resolve_subsys_kernel(struct udev *udev, const char *string, char *result, size_t maxsize, int read_value);
173 ssize_t print_kmsg(const char *fmt, ...) _printf_(1, 2);