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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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""" |
|
8
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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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9
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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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10
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if none of the arguments are false, then the AND operator produces a result of unknown. |
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11
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""" |
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12
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1 |
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out_result = None |
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13
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1 |
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if eq_zero(result, 'false_cnt')\ |
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14
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and greater_zero(result, 'true_cnt')\ |
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15
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and error_unknown_noteval_eq_zero(result): |
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16
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1 |
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out_result = 'true' |
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17
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1 |
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elif greater_zero(result, 'false_cnt'): |
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18
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1 |
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out_result = 'false' |
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19
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else: |
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20
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1 |
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out_result = error_unknown_noteval_for_operators_and_or(result, 'and') |
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21
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1 |
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return out_result |
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22
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23
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24
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1 |
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def oval_operator_one(result): |
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25
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""" |
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26
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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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27
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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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28
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is false. If one or more of the arguments are unknown, then the ONE operator produces |
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29
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a result of unknown. |
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30
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""" |
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31
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1 |
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out_result = None |
|
32
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1 |
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if result['true_cnt'] == 1\ |
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33
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and eq_or_greater_zero_duo(result,'false_cnt','notappl_cnt')\ |
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|
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34
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and error_unknown_noteval_eq_zero(result): |
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35
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1 |
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out_result = 'true' |
|
36
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1 |
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elif result['true_cnt'] >= 2\ |
|
37
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and eq_or_greater_zero_duo(result, 'false_cnt', 'error_cnt')\ |
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38
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and eq_or_greater_zero_unknown_noteval_notappl(result): |
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39
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1 |
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out_result = 'false' |
|
40
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1 |
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elif eq_zero(result, 'true_cnt')\ |
|
41
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and eq_or_greater_zero(result, 'false_cnt')\ |
|
42
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and error_unknown_noteval_eq_zero(result)\ |
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43
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and result['notappl_cnt'] >= 0: |
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44
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1 |
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out_result = 'false' |
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45
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1 |
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elif smaller_than_two(result, 'true_cnt')\ |
|
46
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and eq_or_greater_zero(result, 'false_cnt')\ |
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47
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and greater_zero(result, 'error_cnt')\ |
|
48
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and eq_or_greater_zero_unknown_noteval_notappl(result): |
|
49
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1 |
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out_result = 'error' |
|
50
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1 |
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elif smaller_than_two(result, 'true_cnt')\ |
|
51
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and eq_or_greater_zero(result, 'false_cnt')\ |
|
52
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and eq_zero(result, 'error_cnt')\ |
|
53
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and result['unknown_cnt'] >= 1\ |
|
54
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and eq_or_greater_zero_duo(result, 'noteval_cnt','notappl_cnt'): |
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|
|
55
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1 |
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out_result = 'unknown' |
|
56
|
1 |
|
elif smaller_than_two(result, 'true_cnt')\ |
|
57
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and eq_or_greater_zero_duo(result, 'false_cnt','notappl_cnt')\ |
|
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|
|
58
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and eq_zero_duo(result, 'error_cnt', 'unknown_cnt')\ |
|
59
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and greater_zero(result, 'noteval_cnt'): |
|
60
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1 |
|
out_result = 'noteval' |
|
61
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else: |
|
62
|
1 |
|
out_result = None |
|
63
|
1 |
|
return out_result |
|
64
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|
65
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|
66
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1 |
|
def oval_operator_or(result): |
|
67
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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 |
|
69
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|
is false, the result of the OR is false. If one or more of the arguments are unknown and |
|
70
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if none of arguments are true, then the OR operator produces a result of unknown. |
|
71
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""" |
|
72
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1 |
|
out_result = None |
|
73
|
1 |
|
if greater_zero(result, 'true_cnt'): |
|
74
|
1 |
|
out_result = 'true' |
|
75
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1 |
|
elif eq_zero(result, 'true_cnt')\ |
|
76
|
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and greater_zero(result, 'false_cnt')\ |
|
77
|
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and error_unknown_noteval_eq_zero(result): |
|
78
|
1 |
|
out_result = 'false' |
|
79
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|
|
else: |
|
80
|
1 |
|
out_result = error_unknown_noteval_for_operators_and_or(result, 'or') |
|
81
|
1 |
|
return out_result |
|
82
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|
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|
|
83
|
|
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|
|
84
|
1 |
|
def oval_operator_xor(result): |
|
85
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""" |
|
86
|
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XOR is defined to be true if an odd number of its arguments are true, and false otherwise. |
|
87
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|
If any of the arguments are unknown, then the XOR operator produces a result of unknown. |
|
88
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|
""" |
|
89
|
1 |
|
out_result = None |
|
90
|
1 |
|
if (result['true_cnt'] % 2) == 1\ |
|
91
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|
and eq_zero_unknown_noteval_notappl(result): |
|
92
|
1 |
|
out_result = 'true' |
|
93
|
1 |
|
elif (result['true_cnt'] % 2) == 0\ |
|
94
|
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|
and eq_zero_unknown_noteval_notappl(result): |
|
95
|
1 |
|
out_result = 'false' |
|
96
|
1 |
|
elif greater_zero(result, 'error_cnt'): |
|
97
|
1 |
|
out_result = 'error' |
|
98
|
1 |
|
elif eq_zero(result, 'error_cnt')\ |
|
99
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|
and greater_zero(result, 'unknown_cnt'): |
|
100
|
1 |
|
out_result = 'unknown' |
|
101
|
1 |
|
elif eq_zero(result, 'error_cnt')\ |
|
102
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|
and eq_zero(result, 'unknown_cnt')\ |
|
103
|
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|
and greater_zero(result, 'noteval_cnt'): |
|
104
|
1 |
|
out_result = 'noteval' |
|
105
|
|
|
else: |
|
106
|
1 |
|
out_result = None |
|
107
|
1 |
|
return out_result |
|
108
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|
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|
|
109
|
|
|
|
|
110
|
1 |
|
def error_unknown_noteval_for_operators_and_or(result, operator): |
|
111
|
1 |
|
out_result = None |
|
112
|
1 |
|
if and_or_eq_zero(operator, result)\ |
|
113
|
|
|
and greater_zero(result, 'error_cnt'): |
|
114
|
1 |
|
out_result = 'error' |
|
115
|
1 |
|
elif and_or_eq_zero(operator, result)\ |
|
116
|
|
|
and error_unknown_eq_zero(result): |
|
117
|
1 |
|
out_result = 'unknown' |
|
118
|
1 |
|
elif and_or_eq_zero(operator, result)\ |
|
119
|
|
|
and error_unknown_eq_noteval_greater_zero(result): |
|
120
|
1 |
|
out_result = 'noteval' |
|
121
|
|
|
else: |
|
122
|
1 |
|
out_result = None |
|
123
|
1 |
|
return out_result |
|
124
|
|
|
|
|
125
|
|
|
|
|
126
|
1 |
|
def and_or_eq_zero(operator, result): |
|
127
|
1 |
|
if operator == 'and': |
|
128
|
1 |
|
return eq_zero(result, 'false_cnt') |
|
129
|
1 |
|
if operator == 'or': |
|
130
|
1 |
|
return eq_zero(result, 'true_cnt') |
|
131
|
1 |
|
return None |
|
132
|
|
|
|
|
133
|
|
|
|
|
134
|
1 |
|
def eq_zero(result, cnt): |
|
135
|
1 |
|
if result[cnt] == 0: |
|
136
|
1 |
|
return True |
|
137
|
1 |
|
return False |
|
138
|
|
|
|
|
139
|
|
|
|
|
140
|
1 |
|
def eq_zero_duo(result, cnt0, cnt1): |
|
141
|
1 |
|
if result[cnt0] == 0 and result[cnt1] == 0: |
|
142
|
1 |
|
return True |
|
143
|
|
|
return False |
|
144
|
|
|
|
|
145
|
|
|
|
|
146
|
1 |
|
def greater_zero(result, cnt): |
|
147
|
1 |
|
if result[cnt] > 0: |
|
148
|
1 |
|
return True |
|
149
|
1 |
|
return False |
|
150
|
|
|
|
|
151
|
|
|
|
|
152
|
1 |
|
def eq_or_greater_zero(result, cnt): |
|
153
|
1 |
|
if result[cnt] >= 0: |
|
154
|
1 |
|
return True |
|
155
|
1 |
|
return False |
|
156
|
|
|
|
|
157
|
1 |
|
def eq_or_greater_zero_duo(result, cnt0, cnt1): |
|
158
|
1 |
|
if result[cnt0] >= 0 and result[cnt1] >= 0: |
|
159
|
1 |
|
return True |
|
160
|
1 |
|
return False |
|
161
|
|
|
|
|
162
|
|
|
|
|
163
|
|
|
|
|
164
|
1 |
|
def smaller_than_two(result, cnt): |
|
165
|
1 |
|
if result[cnt] < 2: |
|
166
|
1 |
|
return True |
|
167
|
1 |
|
return False |
|
168
|
|
|
|
|
169
|
|
|
|
|
170
|
1 |
|
def eq_or_greater_zero_unknown_noteval_notappl(result): |
|
171
|
1 |
|
if eq_or_greater_zero(result, 'unknown_cnt')\ |
|
172
|
|
|
and eq_or_greater_zero(result, 'noteval_cnt')\ |
|
173
|
|
|
and eq_or_greater_zero(result, 'notappl_cnt'): |
|
174
|
1 |
|
return True |
|
175
|
1 |
|
return False |
|
176
|
|
|
|
|
177
|
|
|
|
|
178
|
1 |
|
def eq_zero_unknown_noteval_notappl(result): |
|
179
|
1 |
|
if eq_zero(result, 'error_cnt')\ |
|
180
|
|
|
and eq_zero(result, 'unknown_cnt')\ |
|
181
|
|
|
and eq_zero(result, 'noteval_cnt'): |
|
182
|
1 |
|
return True |
|
183
|
1 |
|
return False |
|
184
|
|
|
|
|
185
|
|
|
|
|
186
|
1 |
|
def error_unknown_noteval_eq_zero(result): |
|
187
|
1 |
|
if eq_zero(result, 'error_cnt')\ |
|
188
|
|
|
and eq_zero(result, 'unknown_cnt')\ |
|
189
|
|
|
and eq_zero(result, 'noteval_cnt'): |
|
190
|
1 |
|
return True |
|
191
|
1 |
|
return False |
|
192
|
|
|
|
|
193
|
|
|
|
|
194
|
1 |
|
def error_unknown_eq_noteval_greater_zero(result): |
|
195
|
1 |
|
if eq_zero(result, 'error_cnt')\ |
|
196
|
|
|
and eq_zero(result, 'unknown_cnt')\ |
|
197
|
|
|
and greater_zero(result, 'noteval_cnt'): |
|
198
|
1 |
|
return True |
|
199
|
1 |
|
return False |
|
200
|
|
|
|
|
201
|
|
|
|
|
202
|
1 |
|
def error_unknown_eq_zero(result): |
|
203
|
1 |
|
if eq_zero(result, 'error_cnt')\ |
|
204
|
|
|
and greater_zero(result, 'unknown_cnt'): |
|
205
|
1 |
|
return True |
|
206
|
|
|
return False |
|
207
|
|
|
|
OpenSCAP /
oval-graph
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