summaryrefslogtreecommitdiff
path: root/src/shared/condition-util.h
blob: deeb6b4257b3bde1e168ccbe46db9d6c4361e6a1 (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
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

#pragma once

/***
  This file is part of systemd.

  Copyright 2010 Lennart Poettering

  systemd 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.

  systemd 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <stdbool.h>
#include <stdio.h>

#include "list.h"
#include "macro.h"

typedef enum ConditionType {
        CONDITION_PATH_EXISTS,
        CONDITION_PATH_EXISTS_GLOB,
        CONDITION_PATH_IS_DIRECTORY,
        CONDITION_PATH_IS_SYMBOLIC_LINK,
        CONDITION_PATH_IS_MOUNT_POINT,
        CONDITION_PATH_IS_READ_WRITE,
        CONDITION_DIRECTORY_NOT_EMPTY,
        CONDITION_FILE_NOT_EMPTY,
        CONDITION_FILE_IS_EXECUTABLE,
        CONDITION_KERNEL_COMMAND_LINE,
        CONDITION_VIRTUALIZATION,
        CONDITION_SECURITY,
        CONDITION_CAPABILITY,
        CONDITION_HOST,
        CONDITION_AC_POWER,
        CONDITION_ARCHITECTURE,
        CONDITION_NEEDS_UPDATE,
        CONDITION_FIRST_BOOT,
        CONDITION_NULL,
        _CONDITION_TYPE_MAX,
        _CONDITION_TYPE_INVALID = -1
} ConditionType;

#define CONDITION_STATE_IS_SUCCEEDED(state) ((state) > 0)
#define CONDITION_STATE_IS_UNKNOWN(state) ((state) == 0)
#define CONDITION_STATE_IS_FAILED(state) ((state) < 0)

enum {
        CONDITION_STATE_SUCCEEDED = -1,
        CONDITION_STATE_UNKNOWN = 0,
        CONDITION_STATE_FAILED = 1
};

typedef struct Condition {
        ConditionType type;

        bool trigger:1;
        bool negate:1;

        char *parameter;
        int state;

        LIST_FIELDS(struct Condition, conditions);
} Condition;

Condition* condition_new(ConditionType type, const char *parameter, bool trigger, bool negate);
void condition_free(Condition *c);
void condition_free_list(Condition *c);

int condition_test_kernel_command_line(Condition *c);
int condition_test_virtualization(Condition *c);
int condition_test_architecture(Condition *c);
int condition_test_host(Condition *c);
int condition_test_ac_power(Condition *c);

int condition_test(Condition *c);

void condition_dump(Condition *c, FILE *f, const char *prefix);
void condition_dump_list(Condition *c, FILE *f, const char *prefix);

const char* condition_type_to_string(ConditionType t) _const_;
int condition_type_from_string(const char *s) _pure_;