• Registered: 2011-05-31
  • Posts: 24

Topic: Sniffer Application memory leak/memory pool?

Hey all,
I noticed my sniffer application demonstrated the following behavior:
I commented out the "ProcessMessage" function, so essentially all i do is add sessions and remove them.
if I comment out (replace by NULL) the calls to SSL_new for session->sslClient/sslServer in the CreateSession method, I see the memory is dead on. however, if I enable the SSL_new in CreateSession, I notice the memory very slowly rising, and does not appear to be going down to the base level when I stop pushing traffic.

1. is it possible that there is a memory leak in SSL_free / SSL_new?
2. if not, are you using memory pooling with the SSL* objects? clearly I can look in the code, but I want to be sure - I ask because that could account for what I am seeing


thanks in advance,
Dan

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  • Registered: 2011-05-31
  • Posts: 24

Re: Sniffer Application memory leak/memory pool?

Update:
while I still suspect something, my experiment was flawed. I will update if anything comes up.


thanks and sorry for the false alarm.

Dan

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  • Registered: 2011-05-31
  • Posts: 24

Re: Sniffer Application memory leak/memory pool?

Hey all,
Just to be clear - If there is any sort of memory pooling, I would appreciate it if you could let me know...


thanks ,
Dan

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  • john
  • Moderator
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  • From: Seattle, WA
  • Registered: 2011-11-14
  • Posts: 148

Re: Sniffer Application memory leak/memory pool?

We do not using memory pools.

Which version (or GitHub commit) are you using? Are you doing any filtering of FIN packets, or are you allowing the sniffer (ssl_DecodePacket()) to process them. Our sniffer code releases the sniffer session when a FIN packet is received for a src/dst addr/port quad.

john's Website

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