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1
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""" |
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2
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Function for evaluate OVAL operators. |
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3
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""" |
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4
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5
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6
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1 |
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def oval_operator_and(result): |
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7
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"""The AND operator produces a true result if every argument is true. If one or more arguments |
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8
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are false, the result of the AND is false. If one or more of the arguments are unknown, and |
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9
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if none of the arguments are false, then the AND operator produces a result of unknown. |
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10
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11
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Args: |
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12
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result (dict): Dictionary storing occurrence of given values |
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13
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Returns: |
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15
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str. return values:: |
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16
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true |
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false |
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19
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error |
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20
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unknown |
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21
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noteval |
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22
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""" |
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1 |
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out_result = None |
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24
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1 |
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eval_eq_zero = eq_zero(result, 'false_cnt') |
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1 |
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eval_greater_zero = greater_zero(result, 'true_cnt') |
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26
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1 |
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if eval_eq_zero and eval_greater_zero and error_unknown_noteval_eq_zero(result): |
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1 |
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out_result = 'true' |
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28
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1 |
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elif greater_zero(result, 'false_cnt'): |
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29
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1 |
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out_result = 'false' |
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30
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else: |
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31
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1 |
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out_result = error_unknown_noteval_for_operators_and_or(result, 'and') |
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32
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1 |
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return out_result |
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33
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34
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35
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1 |
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def oval_operator_one(result): |
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36
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"""The ONE operator produces a true result if one and only one argument is true. If there are |
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37
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more than argument is true (or if there are no true arguments), the result of the ONE |
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38
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is false. If one or more of the arguments are unknown, then the ONE operator produces |
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39
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a result of unknown. |
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40
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41
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Args: |
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42
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result (dict): Dictionary storing occurrence of given values |
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43
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44
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Returns: |
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45
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str. return values:: |
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46
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47
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true |
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48
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false |
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49
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error |
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50
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unknown |
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51
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noteval |
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52
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""" |
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53
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1 |
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out_result = None |
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54
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1 |
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if one_is_true(result): |
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55
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1 |
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out_result = 'true' |
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56
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1 |
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elif one_is_false(result): |
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57
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1 |
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out_result = 'false' |
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58
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1 |
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elif one_is_error(result): |
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59
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1 |
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out_result = 'error' |
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60
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1 |
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elif one_is_unknown(result): |
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61
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1 |
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out_result = 'unknown' |
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62
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1 |
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elif one_is_noteval(result): |
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63
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1 |
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out_result = 'noteval' |
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64
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1 |
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return out_result |
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65
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|
66
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|
67
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1 |
|
def oval_operator_or(result): |
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68
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"""The OR operator produces a true result if one or more arguments is true. If every argument |
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69
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is false, the result of the OR is false. If one or more of the arguments are unknown and |
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70
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if none of arguments are true, then the OR operator produces a result of unknown. |
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71
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|
72
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Args: |
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73
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result (dict): Dictionary storing occurrence of given values |
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74
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|
75
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Returns: |
|
76
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str. return values:: |
|
77
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78
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true |
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79
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false |
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80
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error |
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81
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unknown |
|
82
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noteval |
|
83
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""" |
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84
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1 |
|
out_result = None |
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85
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1 |
|
eval_eq_zero = eq_zero(result, 'true_cnt') |
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86
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1 |
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eval_greater_zero = greater_zero(result, 'false_cnt') |
|
87
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1 |
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if greater_zero(result, 'true_cnt'): |
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88
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1 |
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out_result = 'true' |
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89
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1 |
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elif eval_eq_zero and eval_greater_zero and error_unknown_noteval_eq_zero(result): |
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90
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1 |
|
out_result = 'false' |
|
91
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else: |
|
92
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1 |
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out_result = error_unknown_noteval_for_operators_and_or(result, 'or') |
|
93
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1 |
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return out_result |
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94
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|
95
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|
96
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1 |
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def oval_operator_xor(result): |
|
97
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"""XOR is defined to be true if an odd number of its arguments are true, and false otherwise. |
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98
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If any of the arguments are unknown, then the XOR operator produces a result of unknown. |
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99
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100
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Args: |
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101
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result (dict): Dictionary storing occurrence of given values |
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102
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103
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Returns: |
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104
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str. return values:: |
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105
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|
106
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true |
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107
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false |
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108
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error |
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109
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unknown |
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110
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noteval |
|
111
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""" |
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112
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1 |
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out_result = None |
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113
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1 |
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eval_error_cnt = eq_zero(result, 'error_cnt') |
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114
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1 |
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eval_unknown_cnt = eq_zero(result, 'unknown_cnt') |
|
115
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1 |
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if (result['true_cnt'] % 2) == 1 and eq_zero_unknown_noteval_notappl(result): |
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116
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1 |
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out_result = 'true' |
|
117
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1 |
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elif (result['true_cnt'] % 2) == 0 and eq_zero_unknown_noteval_notappl(result): |
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118
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1 |
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out_result = 'false' |
|
119
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1 |
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elif greater_zero(result, 'error_cnt'): |
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120
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1 |
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out_result = 'error' |
|
121
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1 |
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elif eq_zero(result, 'error_cnt') and greater_zero(result, 'unknown_cnt'): |
|
122
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1 |
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out_result = 'unknown' |
|
123
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1 |
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elif eval_error_cnt and eval_unknown_cnt and greater_zero(result, 'noteval_cnt'): |
|
124
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1 |
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out_result = 'noteval' |
|
125
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1 |
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return out_result |
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126
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|
127
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|
128
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1 |
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def error_unknown_noteval_for_operators_and_or(result, operator): |
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129
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|
"""Evaluates if the result match the values for error, unknown, noteval. |
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130
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|
131
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Args: |
|
132
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result (dict): Dictionary storing occurrence of given values |
|
133
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operator (str): Specifies for which operator is used |
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134
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|
135
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Returns: |
|
136
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str or None. return values:: |
|
137
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|
138
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error |
|
139
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unknown |
|
140
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notappl |
|
141
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|
|
""" |
|
142
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1 |
|
out_result = None |
|
143
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1 |
|
value_for_check = 'false_cnt' if operator == 'and' else 'true_cnt' |
|
144
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1 |
|
if eq_zero(result, value_for_check) and greater_zero(result, 'error_cnt'): |
|
145
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1 |
|
out_result = 'error' |
|
146
|
1 |
|
elif eq_zero(result, value_for_check) and error_unknown_eq_zero(result): |
|
147
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1 |
|
out_result = 'unknown' |
|
148
|
1 |
|
elif eq_zero(result, value_for_check) and error_unknown_eq_noteval_greater_zero(result): |
|
149
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1 |
|
out_result = 'noteval' |
|
150
|
1 |
|
return out_result |
|
151
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|
152
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|
153
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1 |
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def eq_zero(result, cnt): |
|
154
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1 |
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return result[cnt] == 0 |
|
155
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|
156
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|
157
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1 |
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def eq_zero_duo(result, cnt0, cnt1): |
|
158
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1 |
|
return result[cnt0] == 0 and result[cnt1] == 0 |
|
159
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|
160
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|
161
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1 |
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def greater_zero(result, cnt): |
|
162
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1 |
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return result[cnt] > 0 |
|
163
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|
164
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|
165
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1 |
|
def eq_or_greater_zero(result, cnt): |
|
166
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1 |
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return result[cnt] >= 0 |
|
167
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|
168
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|
169
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1 |
|
def eq_or_greater_zero_duo(result, cnt0, cnt1): |
|
170
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1 |
|
return result[cnt0] >= 0 and result[cnt1] >= 0 |
|
171
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|
172
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|
173
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1 |
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def smaller_than_two(result, cnt): |
|
174
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1 |
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return result[cnt] < 2 |
|
175
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|
176
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|
177
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1 |
|
def one_is_noteval(result): |
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178
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"""Evaluates if the result match noteval for one operator. |
|
179
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|
180
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Args: |
|
181
|
|
|
result (dict): Dictionary storing occurrence of given values |
|
182
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|
183
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Returns: |
|
184
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|
bool. |
|
185
|
|
|
""" |
|
186
|
1 |
|
true_cnt = smaller_than_two(result, 'true_cnt') |
|
187
|
1 |
|
false_cnt_notappl_cnt = eq_or_greater_zero_duo(result, 'false_cnt', 'notappl_cnt') |
|
188
|
1 |
|
error_cnt_unknown_cnt = eq_zero_duo(result, 'error_cnt', 'unknown_cnt') |
|
189
|
1 |
|
noteval_cnt = greater_zero(result, 'noteval_cnt') |
|
190
|
1 |
|
return true_cnt and false_cnt_notappl_cnt and error_cnt_unknown_cnt and noteval_cnt |
|
191
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|
192
|
|
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|
|
193
|
1 |
|
def one_is_unknown(result): |
|
194
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|
"""Evaluates if the result match unknown for one operator. |
|
195
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|
196
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Args: |
|
197
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|
|
result (dict): Dictionary storing occurrence of given values |
|
198
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|
199
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|
|
Returns: |
|
200
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|
|
bool. |
|
201
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|
|
""" |
|
202
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1 |
|
true_cnt = smaller_than_two(result, 'true_cnt') |
|
203
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1 |
|
false_cnt = eq_or_greater_zero(result, 'false_cnt') |
|
204
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1 |
|
error_cnt = eq_zero(result, 'error_cnt') |
|
205
|
1 |
|
unknown_cnt = result['unknown_cnt'] >= 1 |
|
206
|
1 |
|
noteval_cnt_notappl_cnt = eq_or_greater_zero_duo(result, 'noteval_cnt', 'notappl_cnt') |
|
207
|
1 |
|
return true_cnt and false_cnt and error_cnt and unknown_cnt and noteval_cnt_notappl_cnt |
|
208
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|
209
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|
210
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1 |
|
def one_is_error(result): |
|
211
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"""Evaluates if the result match unknown for one operator. |
|
212
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|
213
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Args: |
|
214
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|
result (dict): Dictionary storing occurrence of given values |
|
215
|
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|
|
216
|
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|
Returns: |
|
217
|
|
|
bool. |
|
218
|
|
|
""" |
|
219
|
1 |
|
true_cnt = smaller_than_two(result, 'true_cnt') |
|
220
|
1 |
|
false_cnt = eq_or_greater_zero(result, 'false_cnt') |
|
221
|
1 |
|
error_cnt = greater_zero(result, 'error_cnt') |
|
222
|
1 |
|
unknown_noteval_notappl = eq_or_greater_zero_unknown_noteval_notappl(result) |
|
223
|
1 |
|
return true_cnt and false_cnt and error_cnt and unknown_noteval_notappl |
|
224
|
|
|
|
|
225
|
|
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|
|
226
|
1 |
|
def one_is_false(result): |
|
227
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|
"""Evaluates if the result match false for one operator. |
|
228
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|
|
Operator ONE has two cases of false state. |
|
229
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|
|
|
230
|
|
|
Args: |
|
231
|
|
|
result (dict): Dictionary storing occurrence of given values |
|
232
|
|
|
|
|
233
|
|
|
Returns: |
|
234
|
|
|
bool. |
|
235
|
|
|
""" |
|
236
|
|
|
# The first case for false |
|
237
|
1 |
|
true_cnt = eq_zero(result, 'true_cnt') |
|
238
|
1 |
|
false_cnt = eq_or_greater_zero(result, 'false_cnt') |
|
239
|
1 |
|
unknown_noteval_cnt = error_unknown_noteval_eq_zero(result) |
|
240
|
1 |
|
notappl_cnt = result['notappl_cnt'] >= 0 |
|
241
|
|
|
|
|
242
|
1 |
|
first_case = true_cnt and false_cnt and unknown_noteval_cnt and notappl_cnt |
|
243
|
|
|
|
|
244
|
|
|
# The second case for false |
|
245
|
1 |
|
true_cnt = result['true_cnt'] >= 2 |
|
246
|
1 |
|
false_error_cnt = eq_or_greater_zero_duo(result, 'false_cnt', 'error_cnt') |
|
247
|
1 |
|
unknown_noteval_notappl = eq_or_greater_zero_unknown_noteval_notappl(result) |
|
248
|
1 |
|
second_case = true_cnt and false_error_cnt and unknown_noteval_notappl |
|
249
|
|
|
|
|
250
|
1 |
|
return first_case or second_case |
|
251
|
|
|
|
|
252
|
|
|
|
|
253
|
1 |
|
def one_is_true(result): |
|
254
|
|
|
"""Evaluates if the result match true for one operator. |
|
255
|
|
|
|
|
256
|
|
|
Args: |
|
257
|
|
|
result (dict): Dictionary storing occurrence of given values |
|
258
|
|
|
|
|
259
|
|
|
Returns: |
|
260
|
|
|
bool. |
|
261
|
|
|
""" |
|
262
|
1 |
|
true_cnt = result['true_cnt'] == 1 |
|
263
|
1 |
|
false_notappl_cnt = eq_or_greater_zero_duo(result, 'false_cnt', 'notappl_cnt') |
|
264
|
1 |
|
unknown_noteval_cnt = error_unknown_noteval_eq_zero(result) |
|
265
|
1 |
|
return true_cnt and false_notappl_cnt and unknown_noteval_cnt |
|
266
|
|
|
|
|
267
|
|
|
|
|
268
|
1 |
|
def eq_or_greater_zero_unknown_noteval_notappl(result): |
|
269
|
1 |
|
unknown_cnt = eq_or_greater_zero(result, 'unknown_cnt') |
|
270
|
1 |
|
noteval_cnt = eq_or_greater_zero(result, 'noteval_cnt') |
|
271
|
1 |
|
notappl_cnt = eq_or_greater_zero(result, 'notappl_cnt') |
|
272
|
1 |
|
return unknown_cnt and notappl_cnt and noteval_cnt |
|
273
|
|
|
|
|
274
|
|
|
|
|
275
|
1 |
|
def eq_zero_unknown_noteval_notappl(result): |
|
276
|
1 |
|
error_cnt = eq_zero(result, 'error_cnt') |
|
277
|
1 |
|
unknown_cnt = eq_zero(result, 'unknown_cnt') |
|
278
|
1 |
|
noteval_cnt = eq_zero(result, 'noteval_cnt') |
|
279
|
1 |
|
return error_cnt and unknown_cnt and noteval_cnt |
|
280
|
|
|
|
|
281
|
|
|
|
|
282
|
1 |
|
def error_unknown_noteval_eq_zero(result): |
|
283
|
1 |
|
error_cnt = eq_zero(result, 'error_cnt') |
|
284
|
1 |
|
unknown_cnt = eq_zero(result, 'unknown_cnt') |
|
285
|
1 |
|
noteval_cnt = eq_zero(result, 'noteval_cnt') |
|
286
|
1 |
|
return error_cnt and unknown_cnt and noteval_cnt |
|
287
|
|
|
|
|
288
|
|
|
|
|
289
|
1 |
|
def error_unknown_eq_noteval_greater_zero(result): |
|
290
|
1 |
|
error_cnt = eq_zero(result, 'error_cnt') |
|
291
|
1 |
|
unknown_cnt = eq_zero(result, 'unknown_cnt') |
|
292
|
1 |
|
noteval_cnt = greater_zero(result, 'noteval_cnt') |
|
293
|
1 |
|
return error_cnt and unknown_cnt and noteval_cnt |
|
294
|
|
|
|
|
295
|
|
|
|
|
296
|
1 |
|
def error_unknown_eq_zero(result): |
|
297
|
1 |
|
return eq_zero(result, 'error_cnt') and greater_zero(result, 'unknown_cnt') |
|
298
|
|
|
|
|
299
|
|
|
|
|
300
|
1 |
|
def is_notapp_result(result): |
|
301
|
|
|
"""Evaluates if the counts of values in |
|
302
|
|
|
the result matches the notapp result. |
|
303
|
|
|
|
|
304
|
|
|
Args: |
|
305
|
|
|
result (dict): Dictionary storing occurrence of given values |
|
306
|
|
|
|
|
307
|
|
|
Returns: |
|
308
|
|
|
bool. |
|
309
|
|
|
""" |
|
310
|
1 |
|
notappl_cnt = result['notappl_cnt'] > 0 |
|
311
|
1 |
|
false_cnt = eq_zero(result, 'false_cnt') |
|
312
|
1 |
|
unknown_noteval_cnt = error_unknown_noteval_eq_zero(result) |
|
313
|
1 |
|
true_cnt = eq_zero(result, 'true_cnt') |
|
314
|
|
|
return notappl_cnt and false_cnt and unknown_noteval_cnt and true_cnt |
|
315
|
|
|
|
OpenSCAP /
oval-graph
