forked from osmocom/wireshark
160 lines
3.7 KiB
Python
Executable file
160 lines
3.7 KiB
Python
Executable file
#!/usr/bin/env python
|
|
#
|
|
# Looks for registration routines in the taps,
|
|
# and assembles C code to call all the routines.
|
|
#
|
|
# This is a Python version of the make-reg-dotc shell script.
|
|
# Running the shell script on Win32 is very very slow because of
|
|
# all the process-launching that goes on --- multiple greps and
|
|
# seds for each input file. I wrote this python version so that
|
|
# less processes would have to be started.
|
|
#
|
|
# $Id$
|
|
|
|
import os
|
|
import sys
|
|
import re
|
|
import pickle
|
|
from stat import *
|
|
|
|
#
|
|
# The first argument is the directory in which the source files live.
|
|
#
|
|
srcdir = sys.argv[1]
|
|
|
|
#
|
|
# The second argument is "taps".
|
|
#
|
|
registertype = sys.argv[2]
|
|
if registertype == "taps":
|
|
tmp_filename = "wireshark-tap-register.c-tmp"
|
|
final_filename = "wireshark-tap-register.c"
|
|
cache_filename = "wireshark-tap-register-cache.pkl"
|
|
else:
|
|
print "Unknown output type '%s'" % registertype
|
|
sys.exit(1)
|
|
|
|
|
|
#
|
|
# All subsequent arguments are the files to scan.
|
|
#
|
|
files = sys.argv[3:]
|
|
|
|
# Create the proper list of filenames
|
|
filenames = []
|
|
for file in files:
|
|
if os.path.isfile(file):
|
|
filenames.append(file)
|
|
else:
|
|
filenames.append("%s/%s" % (srcdir, file))
|
|
|
|
if len(filenames) < 1:
|
|
print "No files found"
|
|
sys.exit(1)
|
|
|
|
|
|
# Look through all files, applying the regex to each line.
|
|
# If the pattern matches, save the "symbol" section to the
|
|
# appropriate array.
|
|
regs = {
|
|
'tap_reg': [],
|
|
}
|
|
|
|
# For those that don't know Python, r"" indicates a raw string,
|
|
# devoid of Python escapes.
|
|
tap_regex0 = r"^(?P<symbol>register_tap_listener_[_A-Za-z0-9]+)\s*\([^;]+$"
|
|
tap_regex1 = r"void\s+(?P<symbol>register_tap_listener_[_A-Za-z0-9]+)\s*\([^;]+$"
|
|
|
|
# This table drives the pattern-matching and symbol-harvesting
|
|
patterns = [
|
|
( 'tap_reg', re.compile(tap_regex0) ),
|
|
( 'tap_reg', re.compile(tap_regex1) ),
|
|
]
|
|
|
|
# Open our registration symbol cache
|
|
cache = None
|
|
if cache_filename:
|
|
try:
|
|
cache_file = open(cache_filename, 'rb')
|
|
cache = pickle.load(cache_file)
|
|
cache_file.close()
|
|
except:
|
|
cache = {}
|
|
|
|
# Grep
|
|
for filename in filenames:
|
|
file = open(filename)
|
|
cur_mtime = os.fstat(file.fileno())[ST_MTIME]
|
|
if cache and cache.has_key(filename):
|
|
cdict = cache[filename]
|
|
if cur_mtime == cdict['mtime']:
|
|
# print "Pulling %s from cache" % (filename)
|
|
regs['tap_reg'].extend(cdict['tap_reg'])
|
|
file.close()
|
|
continue
|
|
# We don't have a cache entry
|
|
if cache is not None:
|
|
cache[filename] = {
|
|
'mtime': cur_mtime,
|
|
'tap_reg': [],
|
|
}
|
|
# print "Searching %s" % (filename)
|
|
for line in file.readlines():
|
|
for action in patterns:
|
|
regex = action[1]
|
|
match = regex.search(line)
|
|
if match:
|
|
symbol = match.group("symbol")
|
|
sym_type = action[0]
|
|
regs[sym_type].append(symbol)
|
|
if cache is not None:
|
|
# print "Caching %s for %s: %s" % (sym_type, filename, symbol)
|
|
cache[filename][sym_type].append(symbol)
|
|
file.close()
|
|
|
|
if cache is not None and cache_filename is not None:
|
|
cache_file = open(cache_filename, 'wb')
|
|
pickle.dump(cache, cache_file)
|
|
cache_file.close()
|
|
|
|
# Make sure we actually processed something
|
|
if len(regs['tap_reg']) < 1:
|
|
print "No protocol registrations found"
|
|
sys.exit(1)
|
|
|
|
# Sort the lists to make them pretty
|
|
regs['tap_reg'].sort()
|
|
|
|
reg_code = open(tmp_filename, "w")
|
|
|
|
reg_code.write("/* Do not modify this file. */\n")
|
|
reg_code.write("/* It is created automatically by the Makefile. */\n")
|
|
|
|
# Make the routine to register all taps
|
|
reg_code.write("""
|
|
#include "register.h"
|
|
void register_all_tap_listeners(void) {
|
|
""");
|
|
|
|
for symbol in regs['tap_reg']:
|
|
line = " {extern void %s (void); %s ();}\n" % (symbol, symbol)
|
|
reg_code.write(line)
|
|
|
|
reg_code.write("}\n")
|
|
|
|
|
|
# Close the file
|
|
reg_code.close()
|
|
|
|
# Remove the old final_file if it exists.
|
|
try:
|
|
os.stat(final_filename)
|
|
os.remove(final_filename)
|
|
except OSError:
|
|
pass
|
|
|
|
# Move from tmp file to final file
|
|
os.rename(tmp_filename, final_filename)
|
|
|
|
|