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authorBen Hilburn <ben.hilburn@ettus.com>2014-02-04 11:04:07 -0800
committerBen Hilburn <ben.hilburn@ettus.com>2014-02-04 11:04:07 -0800
commit178ac3f1c9950d383c8f64b3df464c0f943c4a23 (patch)
tree318ed621a7b59b7d34d4ce6e4a92f73f0bcef509 /tools/chdr-dissector/make-dissector-reg.py
parent2718ac110fa931cc29daf7cb3dc5ab6230ee02ab (diff)
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Merging USRP X300 and X310 support!!
Diffstat (limited to 'tools/chdr-dissector/make-dissector-reg.py')
-rwxr-xr-xtools/chdr-dissector/make-dissector-reg.py305
1 files changed, 305 insertions, 0 deletions
diff --git a/tools/chdr-dissector/make-dissector-reg.py b/tools/chdr-dissector/make-dissector-reg.py
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+#!/usr/bin/env python
+#
+# Looks for registration routines in the protocol dissectors,
+# 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: make-dissector-reg.py 30447 2009-10-09 20:47:18Z krj $
+
+import os
+import sys
+import re
+import pickle
+from stat import *
+
+VERSION_KEY = '_VERSION'
+CUR_VERSION = '$Id: make-dissector-reg.py 30447 2009-10-09 20:47:18Z krj $'
+
+#
+# The first argument is the directory in which the source files live.
+#
+srcdir = sys.argv[1]
+
+#
+# The second argument is either "plugin" or "dissectors"; if it's
+# "plugin", we build a plugin.c for a plugin, and if it's
+# "dissectors", we build a register.c for libwireshark.
+#
+registertype = sys.argv[2]
+if registertype == "plugin" or registertype == "plugin_wtap":
+ tmp_filename = "plugin.c-tmp"
+ final_filename = "plugin.c"
+ cache_filename = None
+ preamble = """\
+/*
+ * Do not modify this file.
+ *
+ * It is created automatically by Makefile or Makefile.nmake.
+ */
+"""
+elif registertype == "dissectors":
+ tmp_filename = "register.c-tmp"
+ final_filename = "register.c"
+ cache_filename = "register-cache.pkl"
+ preamble = """\
+/*
+ * Do not modify this file.
+ *
+ * It is created automatically by the "register.c" target in
+ * epan/dissectors/Makefile or Makefile.nmake using information in
+ * epan/dissectors/register-cache.pkl.
+ *
+ * You can force this file to be regenerated completely by deleting
+ * it along with epan/dissectors/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(os.path.join(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 = {
+ 'proto_reg': [],
+ 'handoff_reg': [],
+ 'wtap_register': [],
+ }
+
+# For those that don't know Python, r"" indicates a raw string,
+# devoid of Python escapes.
+proto_regex0 = r"^(?P<symbol>proto_register_[_A-Za-z0-9]+)\s*\([^;]+$"
+proto_regex1 = r"void\s+(?P<symbol>proto_register_[_A-Za-z0-9]+)\s*\([^;]+$"
+
+handoff_regex0 = r"^(?P<symbol>proto_reg_handoff_[_A-Za-z0-9]+)\s*\([^;]+$"
+handoff_regex1 = r"void\s+(?P<symbol>proto_reg_handoff_[_A-Za-z0-9]+)\s*\([^;]+$"
+
+wtap_reg_regex0 = r"^(?P<symbol>wtap_register_[_A-Za-z0-9]+)\s*\([^;]+$"
+wtap_reg_regex1 = r"void\s+(?P<symbol>wtap_register_[_A-Za-z0-9]+)\s*\([^;]+$"
+
+# This table drives the pattern-matching and symbol-harvesting
+patterns = [
+ ( 'proto_reg', re.compile(proto_regex0) ),
+ ( 'proto_reg', re.compile(proto_regex1) ),
+ ( 'handoff_reg', re.compile(handoff_regex0) ),
+ ( 'handoff_reg', re.compile(handoff_regex1) ),
+ ( 'wtap_register', re.compile(wtap_reg_regex0) ),
+ ( 'wtap_register', re.compile(wtap_reg_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()
+ if not cache.has_key(VERSION_KEY) or cache[VERSION_KEY] != CUR_VERSION:
+ cache = {VERSION_KEY: CUR_VERSION}
+ except:
+ cache = {VERSION_KEY: CUR_VERSION}
+
+# 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['proto_reg'].extend(cdict['proto_reg'])
+ regs['handoff_reg'].extend(cdict['handoff_reg'])
+ regs['wtap_register'].extend(cdict['wtap_register'])
+ file.close()
+ continue
+ # We don't have a cache entry
+ if cache is not None:
+ cache[filename] = {
+ 'mtime': cur_mtime,
+ 'proto_reg': [],
+ 'handoff_reg': [],
+ 'wtap_register': [],
+ }
+# 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['proto_reg']) < 1:
+ print "No protocol registrations found"
+ sys.exit(1)
+
+# Sort the lists to make them pretty
+regs['proto_reg'].sort()
+regs['handoff_reg'].sort()
+regs['wtap_register'].sort()
+
+reg_code = open(tmp_filename, "w")
+
+reg_code.write(preamble)
+
+# Make the routine to register all protocols
+if registertype == "plugin" or registertype == "plugin_wtap":
+ reg_code.write("""
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <gmodule.h>
+
+#include "moduleinfo.h"
+
+#ifndef ENABLE_STATIC
+G_MODULE_EXPORT const gchar version[] = VERSION;
+
+/* Start the functions we need for the plugin stuff */
+
+G_MODULE_EXPORT void
+plugin_register (void)
+{
+""");
+else:
+ reg_code.write("""
+#include "register.h"
+void
+register_all_protocols(register_cb cb, gpointer client_data)
+{
+""");
+
+for symbol in regs['proto_reg']:
+ if registertype == "plugin" or registertype == "plugin_wtap":
+ line = " {extern void %s (void); %s ();}\n" % (symbol, symbol)
+ else:
+ line = " {extern void %s (void); if(cb) (*cb)(RA_REGISTER, \"%s\", client_data); %s ();}\n" % (symbol, symbol, symbol)
+ reg_code.write(line)
+
+reg_code.write("}\n")
+
+
+# Make the routine to register all protocol handoffs
+if registertype == "plugin" or registertype == "plugin_wtap":
+ reg_code.write("""
+G_MODULE_EXPORT void
+plugin_reg_handoff(void)
+{
+""");
+else:
+ reg_code.write("""
+void
+register_all_protocol_handoffs(register_cb cb, gpointer client_data)
+{
+""");
+
+for symbol in regs['handoff_reg']:
+ if registertype == "plugin" or registertype == "plugin_wtap":
+ line = " {extern void %s (void); %s ();}\n" % (symbol, symbol)
+ else:
+ line = " {extern void %s (void); if(cb) (*cb)(RA_HANDOFF, \"%s\", client_data); %s ();}\n" % (symbol, symbol, symbol)
+ reg_code.write(line)
+
+reg_code.write("}\n")
+
+if registertype == "plugin":
+ reg_code.write("#endif\n");
+elif registertype == "plugin_wtap":
+ reg_code.write("""
+G_MODULE_EXPORT void
+register_wtap_module(void)
+{
+""");
+
+ for symbol in regs['wtap_register']:
+ line = " {extern void %s (void); %s ();}\n" % (symbol, symbol)
+ reg_code.write(line)
+
+ reg_code.write("}\n");
+ reg_code.write("#endif\n");
+else:
+ reg_code.write("""
+static gulong proto_reg_count(void)
+{
+""");
+
+ line = " return %d;\n" % len(regs['proto_reg'])
+ reg_code.write(line)
+
+ reg_code.write("""
+}
+""");
+ reg_code.write("""
+static gulong handoff_reg_count(void)
+{
+""");
+
+ line = " return %d;\n" % len(regs['handoff_reg'])
+ reg_code.write(line)
+
+ reg_code.write("""
+}
+""");
+ reg_code.write("""
+gulong register_count(void)
+{
+""");
+
+ line = " return proto_reg_count() + handoff_reg_count();"
+ 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)
+
+