blob: 9cb1e24db8909893acfbcfd2e658df84bb378a03 [file] [log] [blame]
import re
import sys
import SELinuxNeverallowTestFrame
usage = "Usage: ./ <input policy file> <output cts java source>"
# extract_neverallow_rules - takes an intermediate policy file and pulls out the
# neverallow rules by taking all of the non-commented text between the 'neverallow'
# keyword and a terminating ';'
# returns: a list of strings representing these rules
def extract_neverallow_rules(policy_file):
with open(policy_file, 'r') as in_file:
policy_str =
# remove comments
no_comments = re.sub(r'#.+?$', r'', policy_str, flags = re.M)
# match neverallow rules
return re.findall(r'(^neverallow\s.+?;)', no_comments, flags = re.M |re.S);
# neverallow_rule_to_test - takes a neverallow statement and transforms it into
# the output necessary to form a cts unit test in a java source file.
# returns: a string representing a generic test method based on this rule.
def neverallow_rule_to_test(neverallow_rule, test_num):
squashed_neverallow = neverallow_rule.replace("\n", " ")
method = SELinuxNeverallowTestFrame.src_method
method = method.replace("testNeverallowRules()",
"testNeverallowRules" + str(test_num) + "()")
return method.replace("$NEVERALLOW_RULE_HERE$", squashed_neverallow)
if __name__ == "__main__":
# check usage
if len(sys.argv) != 3:
print usage
input_file = sys.argv[1]
output_file = sys.argv[2]
src_header = SELinuxNeverallowTestFrame.src_header
src_body = SELinuxNeverallowTestFrame.src_body
src_footer = SELinuxNeverallowTestFrame.src_footer
# grab the neverallow rules from the policy file and transform into tests
neverallow_rules = extract_neverallow_rules(input_file)
i = 0
for rule in neverallow_rules:
src_body += neverallow_rule_to_test(rule, i)
i += 1
with open(output_file, 'w') as out_file: