src/shared/condition.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include <stdbool.h>
   5 #include <stdio.h>
   6
   7 #include "list.h"
   8 #include "macro.h"
   9
  10 typedef enum ConditionType {
  11         CONDITION_ARCHITECTURE,
  12         CONDITION_VIRTUALIZATION,
  13         CONDITION_HOST,
  14         CONDITION_KERNEL_COMMAND_LINE,
  15         CONDITION_KERNEL_VERSION,
  16         CONDITION_SECURITY,
  17         CONDITION_CAPABILITY,
  18         CONDITION_AC_POWER,
  19
  20         CONDITION_NEEDS_UPDATE,
  21         CONDITION_FIRST_BOOT,
  22
  23         CONDITION_PATH_EXISTS,
  24         CONDITION_PATH_EXISTS_GLOB,
  25         CONDITION_PATH_IS_DIRECTORY,
  26         CONDITION_PATH_IS_SYMBOLIC_LINK,
  27         CONDITION_PATH_IS_MOUNT_POINT,
  28         CONDITION_PATH_IS_READ_WRITE,
  29         CONDITION_DIRECTORY_NOT_EMPTY,
  30         CONDITION_FILE_NOT_EMPTY,
  31         CONDITION_FILE_IS_EXECUTABLE,
  32
  33         CONDITION_NULL,
  34
  35         CONDITION_USER,
  36         CONDITION_GROUP,
  37
  38         CONDITION_CONTROL_GROUP_CONTROLLER,
  39
  40         _CONDITION_TYPE_MAX,
  41         _CONDITION_TYPE_INVALID = -1
  42 } ConditionType;
  43
  44 typedef enum ConditionResult {
  45         CONDITION_UNTESTED,
  46         CONDITION_SUCCEEDED,
  47         CONDITION_FAILED,
  48         CONDITION_ERROR,
  49         _CONDITION_RESULT_MAX,
  50         _CONDITION_RESULT_INVALID = -1
  51 } ConditionResult;
  52
  53 typedef struct Condition {
  54         ConditionType type:8;
  55
  56         bool trigger:1;
  57         bool negate:1;
  58
  59         ConditionResult result:6;
  60
  61         char *parameter;
  62
  63         LIST_FIELDS(struct Condition, conditions);
  64 } Condition;
  65
  66 Condition* condition_new(ConditionType type, const char *parameter, bool trigger, bool negate);
  67 void condition_free(Condition *c);
  68 Condition* condition_free_list(Condition *c);
  69
  70 int condition_test(Condition *c);
  71
  72 void condition_dump(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t));
  73 void condition_dump_list(Condition *c, FILE *f, const char *prefix, const char *(*to_string)(ConditionType t));
  74
  75 const char* condition_type_to_string(ConditionType t) _const_;
  76 ConditionType condition_type_from_string(const char *s) _pure_;
  77
  78 const char* assert_type_to_string(ConditionType t) _const_;
  79 ConditionType assert_type_from_string(const char *s) _pure_;
  80
  81 const char* condition_result_to_string(ConditionResult r) _const_;
  82 ConditionResult condition_result_from_string(const char *s) _pure_;
  83
  84 static inline bool condition_takes_path(ConditionType t) {
  85         return IN_SET(t,
  86                       CONDITION_PATH_EXISTS,
  87                       CONDITION_PATH_EXISTS_GLOB,
  88                       CONDITION_PATH_IS_DIRECTORY,
  89                       CONDITION_PATH_IS_SYMBOLIC_LINK,
  90                       CONDITION_PATH_IS_MOUNT_POINT,
  91                       CONDITION_PATH_IS_READ_WRITE,
  92                       CONDITION_DIRECTORY_NOT_EMPTY,
  93                       CONDITION_FILE_NOT_EMPTY,
  94                       CONDITION_FILE_IS_EXECUTABLE,
  95                       CONDITION_NEEDS_UPDATE);
  96 }