120 lines
4.2 KiB
Python
120 lines
4.2 KiB
Python
import os
|
|
'''
|
|
calc.py: Response packet logger
|
|
|
|
Copyright (c) 2009, Zdenek Vasicek (vasicek AT fit.vutbr.cz)
|
|
Marek Vavrusa (xvavru00 AT stud.fit.vutbr.cz)
|
|
|
|
This software is open source.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
* Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
|
|
* Redistributions in binary form must reproduce the above copyright notice,
|
|
this list of conditions and the following disclaimer in the documentation
|
|
and/or other materials provided with the distribution.
|
|
|
|
* Neither the name of the organization nor the names of its
|
|
contributors may be used to endorse or promote products derived from this
|
|
software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
'''
|
|
|
|
def dataHex(data, prefix=""):
|
|
"""Converts binary string data to display representation form"""
|
|
res = ""
|
|
for i in range(0, (len(data)+15)/16):
|
|
res += "%s0x%02X | " % (prefix, i*16)
|
|
d = map(lambda x:ord(x), data[i*16:i*16+17])
|
|
for ch in d:
|
|
res += "%02X " % ch
|
|
for i in range(0,17-len(d)):
|
|
res += " "
|
|
res += "| "
|
|
for ch in d:
|
|
if (ch < 32) or (ch > 127):
|
|
res += ". "
|
|
else:
|
|
res += "%c " % ch
|
|
res += "\n"
|
|
return res
|
|
|
|
def logDnsMsg(qstate):
|
|
"""Logs response"""
|
|
|
|
r = qstate.return_msg.rep
|
|
q = qstate.return_msg.qinfo
|
|
|
|
print "-"*100
|
|
print("Query: %s, type: %s (%d), class: %s (%d) " % (
|
|
qstate.qinfo.qname_str, qstate.qinfo.qtype_str, qstate.qinfo.qtype,
|
|
qstate.qinfo.qclass_str, qstate.qinfo.qclass))
|
|
print "-"*100
|
|
print "Return reply :: flags: %04X, QDcount: %d, Security:%d, TTL=%d" % (r.flags, r.qdcount, r.security, r.ttl)
|
|
print " qinfo :: qname: %s %s, qtype: %s, qclass: %s" % (str(q.qname_list), q.qname_str, q.qtype_str, q.qclass_str)
|
|
|
|
if (r):
|
|
print "Reply:"
|
|
for i in range(0, r.rrset_count):
|
|
rr = r.rrsets[i]
|
|
|
|
rk = rr.rk
|
|
print i,":",rk.dname_list, rk.dname_str, "flags: %04X" % rk.flags,
|
|
print "type:",rk.type_str,"(%d)" % ntohs(rk.type), "class:",rk.rrset_class_str,"(%d)" % ntohs(rk.rrset_class)
|
|
|
|
d = rr.entry.data
|
|
for j in range(0,d.count+d.rrsig_count):
|
|
print " ",j,":","TTL=",d.rr_ttl[j],
|
|
if (j >= d.count): print "rrsig",
|
|
print
|
|
print dataHex(d.rr_data[j]," ")
|
|
|
|
print "-"*100
|
|
|
|
def init(id, cfg):
|
|
log_info("pythonmod: init called, module id is %d port: %d script: %s" % (id, cfg.port, cfg.python_script))
|
|
return True
|
|
|
|
def deinit(id):
|
|
log_info("pythonmod: deinit called, module id is %d" % id)
|
|
return True
|
|
|
|
def inform_super(id, qstate, superqstate, qdata):
|
|
return True
|
|
|
|
def operate(id, event, qstate, qdata):
|
|
log_info("pythonmod: operate called, id: %d, event:%s" % (id, strmodulevent(event)))
|
|
|
|
if (event == MODULE_EVENT_NEW) or (event == MODULE_EVENT_PASS):
|
|
#Pass on the new event to the iterator
|
|
qstate.ext_state[id] = MODULE_WAIT_MODULE
|
|
return True
|
|
|
|
if event == MODULE_EVENT_MODDONE:
|
|
#Iterator finished, show response (if any)
|
|
|
|
if (qstate.return_msg):
|
|
logDnsMsg(qstate)
|
|
|
|
qstate.ext_state[id] = MODULE_FINISHED
|
|
return True
|
|
|
|
qstate.ext_state[id] = MODULE_ERROR
|
|
return True
|
|
|