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suricata/qa/coccinelle/struct-flags.py

58 lines
1.3 KiB
Python

#!/usr/bin/env python
import re
from os import listdir
SRC_DIR = "../../src/"
class Structure:
def __init__(self, string):
(self.struct, self.flags, self.values) = string.split(":")
cmd = "grep -h coccinelle ../../src/*[ch] | sed -e 's/.*coccinelle: \(.*\) \*\//\1/'"
struct_list = []
dirList = listdir(SRC_DIR)
for fname in dirList:
if re.search("\.[ch]$", fname):
for line in open(SRC_DIR + fname):
if "coccinelle:" in line:
m = re.search("coccinelle: (.*) \*\/", line)
struct = Structure(m.group(1))
struct_list.append(struct)
header = "@flags@"
body = []
i = 0
for struct in struct_list:
header += """
%s *struct%d;
identifier struct_flags%d =~ "^(?!%s).+";""" % (struct.struct, i, i, struct.values)
body.append("""
struct%d->%s@p1 |= struct_flags%d
|
struct%d->%s@p1 & struct_flags%d
|
struct%d->%s@p1 &= ~struct_flags%d
""" % (i, struct.flags, i, i, struct.flags, i, i, struct.flags, i))
i += 1
print header
print "position p1;"
print "@@"
print ""
print "(" + "|".join(body) + ")"
print ""
print """@script:python@
p1 << flags.p1;
@@
print "Invalid usage of flags field at %s:%s, flags value is incorrect (wrong family)." % (p1[0].file, p1[0].line)
import sys
sys.exit(1)"""