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#!/usr/bin/python
# -*- Mode: python; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details:
#
# Copyright (C) 2011 Red Hat, Inc.
#
# ---- Dumps UsbSnoopy XML captures of WMC traffic
from xml.sax import saxutils
from xml.sax import handler
import binascii
import string
packets = []
counts = {}
TO_UNKNOWN = 0
TO_MODEM = 1
TO_HOST = 2
class Packet:
def __init__(self, data, idx):
if len(data) % 2 != 0:
raise Exception("bad data length")
self.idx = idx
self.type = TO_UNKNOWN
if data[:14] == "41542a574d433d":
# host->device: remove the AT*WMC= bits and newline at the end
data = data[14:]
if data[len(data) - 2:] == "0d":
data = data[:len(data) - 2]
self.type = TO_MODEM
# elif data[len(data) - 6:] == "30307e":
# # device->host: remove HDLC terminator and fake CRC
# data = data[:len(data) - 6]
# self.type = TO_HOST
elif data[len(data) - 2:] == "7e":
# device->host: remove HDLC terminator and CRC
data = data[:len(data) - 6]
self.type = TO_HOST
self.data = binascii.unhexlify(data)
self.four = data[:4]
# PPP-unescape TO_MODEM data
escape = False
new_data = ""
for i in self.data:
if ord(i) == 0x7D:
escape = True
elif escape == True:
new_data += chr(ord(i) ^ 0x20)
escape = False
else:
new_data += i
self.data = new_data
def add_ascii(self, line, items):
if len(line) < 53:
line += " " * (53 - len(line))
for i in items:
if chr(i) in string.printable and i >= 32:
line += chr(i)
else:
line += "."
return line
def show(self):
line = "*"
if self.type == TO_MODEM:
line = ">"
elif self.type == TO_HOST:
line = "<"
offset = 0
items = []
printed = False
for i in self.data:
printed = False
line += " %02x" % ord(i)
items.append(ord(i))
if len(items) % 16 == 0:
print "%03d: %s" % (offset, self.add_ascii(line, items))
line = " "
items = []
printed = True
offset += 16
if not printed:
print "%03d: %s" % (offset, self.add_ascii(line, items))
print ""
class FindPackets(handler.ContentHandler):
def __init__(self):
self.inFunction = False
self.inPayload = False
self.ignore = False
self.inTimestamp = False
self.timestamp = None
self.packet = None
self.idx = 1
def startElement(self, name, attrs):
if name == "function":
self.inFunction = True
elif name == "payloadbytes":
self.inPayload = True
elif name == "timestamp":
self.inTimestamp = True
def characters(self, ch):
if self.ignore:
return
stripped = ch.strip()
if self.inFunction and ch != "BULK_OR_INTERRUPT_TRANSFER":
self.ignore = True
return
elif self.inTimestamp:
self.timestamp = stripped
elif self.inPayload and len(stripped) > 0:
if self.packet == None:
self.packet = stripped
else:
self.packet += stripped
def endElement(self, name):
if name == "function":
self.inFunction = False
elif name == "payloadbytes":
self.inPayload = False
elif name == "payload":
if self.packet:
p = Packet(self.packet, self.idx)
self.idx = self.idx + 1
packets.append(p)
self.packet = None
self.ignore = False
self.timestamp = None
elif name == "timestamp":
self.inTimestamp = False
from xml.sax import make_parser
from xml.sax import parse
import sys
if __name__ == "__main__":
dh = FindPackets()
parse(sys.argv[1], dh)
cmds = {}
for p in packets:
if cmds.has_key(p.four):
cmds[p.four].append(p)
else:
cmds[p.four] = [p]
if len(sys.argv) > 2:
if p.four == sys.argv[2]:
p.show()
else:
p.show()
print ""
print "cmd #tot"
for k in cmds.keys():
print "%s (%d)" % (k, len(cmds[k]))
print ""
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