[Prelude Hybrid IDS] #200: Segmentation fault with libprelude Python bindings and signal handling

#200: Segmentation fault with libprelude Python bindings and signal handling
------------------------------------+---------------------------------------
 Reporter:  [email protected]  |       Owner:  yoann                                     
     Type:  defect                  |      Status:  new                                       
 Priority:  normal                  |   Milestone:  Libprelude 0.9.13                         
Component:  libprelude              |     Version:  0.9                                       
 Severity:  normal                  |    Keywords:  python bindings libprelude signal handling
------------------------------------+---------------------------------------
 The following piece of python code is intended to print "Message received"
 everytime a new alert is received by the Prelude Manager. It works ok, but
 sending a signal to it (e.g. SIGINT) in order for it stop leads to a
 segmentation fault.

 Signal handling seems to be responsible for this. Other means to stop the
 python process (e.g. by sending a special IDMEF message to it) work fine.

 ==========
 import time
 import prelude
 import sys

 def correlator_stop(signum, frame):
 prelude.prelude_client_destroy(client,prelude.PRELUDE_CLIENT_EXIT_STATUS_SUCCESS
 )
     print "Stop"
     sys.exit()

 signal.signal(signal.SIGINT, correlator_stop)

 prelude.prelude_init(1, ["PythonTest"])
 client = prelude.prelude_client_new("PythonTest")

 prelude.prelude_client_set_required_permission(client,
 prelude.PRELUDE_CONNECTION_PERMISSION_IDMEF_READ|prelude.PRELUDE_CONNECTION_PERMISSION_IDMEF_WRITE);

 prelude.prelude_client_start(client);

 pool = prelude.prelude_client_get_connection_pool(client)

 while 1 :
     msg = prelude.prelude_connection_pool_recv(pool, -1)
     print "Message received"

 ==========

-- 
Ticket URL: <https://trac.prelude-ids.org/ticket/200>
Prelude Hybrid IDS <http://www.prelude-ids.org>
The Prelude Hybrid Intrusion Detection System suite
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