summaryrefslogtreecommitdiff
path: root/udev/udev_rules.h
blob: b2e5d571ce7185561bf6109ed8bd1ab696f015a5 (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
/*
 * Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
 * Copyright (C) 2004-2006 Kay Sievers <kay.sievers@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 version 2 of the License.
 * 
 *	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, write to the Free Software Foundation, Inc.,
 *	51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 */

#ifndef UDEV_RULES_H
#define UDEV_RULES_H

#include "udev.h"
#include "list.h"

#define PAIRS_MAX		5

enum key_operation {
	KEY_OP_UNSET,
	KEY_OP_MATCH,
	KEY_OP_NOMATCH,
	KEY_OP_ADD,
	KEY_OP_ASSIGN,
	KEY_OP_ASSIGN_FINAL,
};

struct key {
	enum key_operation operation;
	size_t val_off;
};

struct key_pair {
	struct key key;
	size_t key_name_off;
};

struct key_pairs {
	int count;
	struct key_pair keys[PAIRS_MAX];
};

enum import_type {
	IMPORT_UNSET,
	IMPORT_PROGRAM,
	IMPORT_FILE,
	IMPORT_PARENT,
};

enum escape_type {
	ESCAPE_UNSET,
	ESCAPE_NONE,
	ESCAPE_REPLACE,
};

struct udev_rule {
	struct key action;
	struct key devpath;
	struct key kernel;
	struct key subsystem;
	struct key driver;
	struct key_pairs attr;

	struct key kernels;
	struct key subsystems;
	struct key drivers;
	struct key_pairs attrs;

	struct key_pairs env;
	struct key program;
	struct key result;
	struct key import;
	enum import_type import_type;
	struct key test;
	mode_t test_mode_mask;
	struct key run;
	struct key wait_for;
	struct key label;
	struct key goto_label;

	struct key name;
	struct key symlink;
	struct key symlink_match;
	struct key owner;
	struct key group;
	struct key mode;
	enum escape_type string_escape;

	unsigned int link_priority;
	int event_timeout;
	unsigned int partitions;
	unsigned int last_rule:1,
		     run_ignore_error:1,
		     ignore_device:1,
		     ignore_remove:1;

	size_t bufsize;
	char buf[];
};

struct udev_rules {
	struct udev *udev;
	char *buf;
	size_t bufsize;
	int resolve_names;
};

struct udev_rules_iter {
	struct udev_rules *rules;
	size_t current;
};

extern int udev_rules_init(struct udev *udev, struct udev_rules *rules, int resolve_names);
extern void udev_rules_cleanup(struct udev_rules *rules);

extern void udev_rules_iter_init(struct udev_rules_iter *iter, struct udev_rules *rules);
extern struct udev_rule *udev_rules_iter_next(struct udev_rules_iter *iter);
extern struct udev_rule *udev_rules_iter_label(struct udev_rules_iter *iter, const char *label);

extern int udev_rules_get_name(struct udev_rules *rules, struct udevice *udev);
extern int udev_rules_get_run(struct udev_rules *rules, struct udevice *udev);
extern int udev_rules_run(struct udevice *udev);

extern void udev_rules_apply_format(struct udevice *udev, char *string, size_t maxsize);

#endif