summaryrefslogtreecommitdiff
path: root/src/shared/udev.h
blob: 23a04f766c027c8154f5168ae06360b9380c4b79 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
/*
 * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
 * Copyright (C) 2003-2010 Kay Sievers <kay@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, either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef _UDEV_H_
#define _UDEV_H_

#include <sys/types.h>
#include <sys/param.h>
#include <signal.h>

#include "libudev.h"
#include "libudev-private.h"
#include "util.h"
#include "label.h"
#include "strv.h"

struct udev_event {
        struct udev *udev;
        struct udev_device *dev;
        struct udev_device *dev_parent;
        struct udev_device *dev_db;
        char *name;
        char *program_result;
        mode_t mode;
        uid_t uid;
        gid_t gid;
        struct udev_list run_list;
        int exec_delay;
        usec_t birth_usec;
        usec_t timeout_usec;
        int fd_signal;
        unsigned int builtin_run;
        unsigned int builtin_ret;
        bool sigterm;
        bool inotify_watch;
        bool inotify_watch_final;
        bool group_final;
        bool owner_final;
        bool mode_set;
        bool mode_final;
        bool name_final;
        bool devlink_final;
        bool run_final;
};

struct udev_watch {
        struct udev_list_node node;
        int handle;
        char *name;
};

/* udev-rules.c */
struct udev_rules;
struct udev_rules *udev_rules_new(struct udev *udev, int resolve_names);
struct udev_rules *udev_rules_unref(struct udev_rules *rules);
bool udev_rules_check_timestamp(struct udev_rules *rules);
int udev_rules_apply_to_event(struct udev_rules *rules, struct udev_event *event, const sigset_t *sigmask);
void udev_rules_apply_static_dev_perms(struct udev_rules *rules);

/* udev-event.c */
struct udev_event *udev_event_new(struct udev_device *dev);
void udev_event_unref(struct udev_event *event);
size_t udev_event_apply_format(struct udev_event *event, const char *src, char *dest, size_t size);
int udev_event_apply_subsys_kernel(struct udev_event *event, const char *string,
                                   char *result, size_t maxsize, int read_value);
int udev_event_spawn(struct udev_event *event,
                     const char *cmd, char **envp, const sigset_t *sigmask,
                     char *result, size_t ressize);
int udev_event_execute_rules(struct udev_event *event, struct udev_rules *rules, const sigset_t *sigset);
void udev_event_execute_run(struct udev_event *event, const sigset_t *sigset);
int udev_build_argv(struct udev *udev, char *cmd, int *argc, char *argv[]);

/* udev-watch.c */
int udev_watch_init(struct udev *udev);
void udev_watch_restore(struct udev *udev);
void udev_watch_begin(struct udev *udev, struct udev_device *dev);
void udev_watch_end(struct udev *udev, struct udev_device *dev);
struct udev_device *udev_watch_lookup(struct udev *udev, int wd);

/* udev-node.c */
void udev_node_add(struct udev_device *dev, mode_t mode, uid_t uid, gid_t gid);
void udev_node_remove(struct udev_device *dev);
void udev_node_update_old_links(struct udev_device *dev, struct udev_device *dev_old);

/* udev-ctrl.c */
struct udev_ctrl;
struct udev_ctrl *udev_ctrl_new(struct udev *udev);
struct udev_ctrl *udev_ctrl_new_from_fd(struct udev *udev, int fd);
int udev_ctrl_enable_receiving(struct udev_ctrl *uctrl);
struct udev_ctrl *udev_ctrl_ref(struct udev_ctrl *uctrl);
struct udev_ctrl *udev_ctrl_unref(struct udev_ctrl *uctrl);
int udev_ctrl_cleanup(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 timeout);
int udev_ctrl_send_stop_exec_queue(struct udev_ctrl *uctrl, int timeout);
int udev_ctrl_send_start_exec_queue(struct udev_ctrl *uctrl, int timeout);
int udev_ctrl_send_reload(struct udev_ctrl *uctrl, int timeout);
int udev_ctrl_send_ping(struct udev_ctrl *uctrl, int timeout);
int udev_ctrl_send_exit(struct udev_ctrl *uctrl, int timeout);
int udev_ctrl_send_set_env(struct udev_ctrl *uctrl, const char *key, int timeout);
int udev_ctrl_send_set_children_max(struct udev_ctrl *uctrl, int count, int timeout);
struct udev_ctrl_connection;
struct udev_ctrl_connection *udev_ctrl_get_connection(struct udev_ctrl *uctrl);
struct udev_ctrl_connection *udev_ctrl_connection_ref(struct udev_ctrl_connection *conn);
struct udev_ctrl_connection *udev_ctrl_connection_unref(struct udev_ctrl_connection *conn);
struct udev_ctrl_msg;
struct udev_ctrl_msg *udev_ctrl_receive_msg(struct udev_ctrl_connection *conn);
struct udev_ctrl_msg *udev_ctrl_msg_ref(struct udev_ctrl_msg *ctrl_msg);
struct udev_ctrl_msg *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(struct udev_ctrl_msg *ctrl_msg);
int udev_ctrl_get_ping(struct udev_ctrl_msg *ctrl_msg);
int udev_ctrl_get_exit(struct udev_ctrl_msg *ctrl_msg);
const char *udev_ctrl_get_set_env(struct udev_ctrl_msg *ctrl_msg);
int udev_ctrl_get_set_children_max(struct udev_ctrl_msg *ctrl_msg);

/* built-in commands */
enum udev_builtin_cmd {
        UDEV_BUILTIN_BTRFS,
        UDEV_BUILTIN_FIRMWARE,
        UDEV_BUILTIN_HWDB,
        UDEV_BUILTIN_INPUT_ID,
        UDEV_BUILTIN_NET_ID,
        UDEV_BUILTIN_PATH_ID,
        UDEV_BUILTIN_USB_ID,
#ifdef HAVE_ACL
        UDEV_BUILTIN_UACCESS,
#endif
        UDEV_BUILTIN_MAX
};
struct udev_builtin {
        const char *name;
        int (*cmd)(struct udev_device *dev, int argc, char *argv[], bool test);
        const char *help;
        int (*init)(struct udev *udev);
        void (*exit)(struct udev *udev);
        bool (*validate)(struct udev *udev);
        bool run_once;
};
extern const struct udev_builtin udev_builtin_btrfs;
extern const struct udev_builtin udev_builtin_firmware;
extern const struct udev_builtin udev_builtin_hwdb;
extern const struct udev_builtin udev_builtin_input_id;
extern const struct udev_builtin udev_builtin_net_id;
extern const struct udev_builtin udev_builtin_path_id;
extern const struct udev_builtin udev_builtin_usb_id;
extern const struct udev_builtin udev_builtin_uaccess;
void udev_builtin_init(struct udev *udev);
void udev_builtin_exit(struct udev *udev);
enum udev_builtin_cmd udev_builtin_lookup(const char *command);
const char *udev_builtin_name(enum udev_builtin_cmd cmd);
bool udev_builtin_run_once(enum udev_builtin_cmd cmd);
int udev_builtin_run(struct udev_device *dev, enum udev_builtin_cmd cmd, const char *command, bool test);
void udev_builtin_list(struct udev *udev);
bool udev_builtin_validate(struct udev *udev);
int udev_builtin_add_property(struct udev_device *dev, bool test, const char *key, const char *val);
int udev_builtin_hwdb_lookup(struct udev_device *dev, const char *modalias, bool test);

/* udev logging */
void udev_main_log(struct udev *udev, int priority,
                   const char *file, int line, const char *fn,
                   const char *format, va_list args);

/* udevadm commands */
struct udevadm_cmd {
        const char *name;
        int (*cmd)(struct udev *udev, int argc, char *argv[]);
        const char *help;
        int debug;
};
extern const struct udevadm_cmd udevadm_info;
extern const struct udevadm_cmd udevadm_trigger;
extern const struct udevadm_cmd udevadm_settle;
extern const struct udevadm_cmd udevadm_control;
extern const struct udevadm_cmd udevadm_monitor;
extern const struct udevadm_cmd udevadm_hwdb;
extern const struct udevadm_cmd udevadm_test;
extern const struct udevadm_cmd udevadm_test_builtin;
#endif