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74 lines
3.1 KiB
Python
74 lines
3.1 KiB
Python
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'''
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resgen.py: This example shows how to generate authoritative response
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Copyright (c) 2009, Zdenek Vasicek (vasicek AT fit.vutbr.cz)
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Marek Vavrusa (xvavru00 AT stud.fit.vutbr.cz)
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This software is open source.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of the organization nor the names of its
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contributors may be used to endorse or promote products derived from this
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software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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'''
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def init(id, cfg): return True
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def deinit(id): return True
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def inform_super(id, qstate, superqstate, qdata): return True
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def operate(id, event, qstate, qdata):
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if (event == MODULE_EVENT_NEW) or (event == MODULE_EVENT_PASS):
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if (qstate.qinfo.qname_str.endswith(".localdomain.")): #query name ends with localdomain
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#create instance of DNS message (packet) with given parameters
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msg = DNSMessage(qstate.qinfo.qname_str, RR_TYPE_A, RR_CLASS_IN, PKT_QR | PKT_RA | PKT_AA)
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#append RR
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if (qstate.qinfo.qtype == RR_TYPE_A) or (qstate.qinfo.qtype == RR_TYPE_ANY):
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msg.answer.append("%s 10 IN A 127.0.0.1" % qstate.qinfo.qname_str)
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#set qstate.return_msg
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if not msg.set_return_msg(qstate):
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qstate.ext_state[id] = MODULE_ERROR
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return True
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#we don't need validation, result is valid
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qstate.return_msg.rep.security = 2
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qstate.return_rcode = RCODE_NOERROR
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qstate.ext_state[id] = MODULE_FINISHED
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return True
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else:
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#pass the query to validator
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qstate.ext_state[id] = MODULE_WAIT_MODULE
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return True
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if event == MODULE_EVENT_MODDONE:
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log_info("pythonmod: iterator module done")
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qstate.ext_state[id] = MODULE_FINISHED
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return True
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log_err("pythonmod: bad event")
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qstate.ext_state[id] = MODULE_ERROR
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return True
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