[Openswan Users] keeping SA made OCF resource leak
willer.wang at cybertan.com.tw
willer.wang at cybertan.com.tw
Fri Jul 31 07:42:00 EDT 2009
I found the point address of expired SAID entering ipsec_sa_rm( ) and entering
Ipsec_sa_wipe( ) is totally different. Although they got the same SAID, but the information inside was changed. This is also the reason why the ocf_in_use became "0". So, the old expired SA still kept related resource without free.
I don't know for what purpose the SA have this kind of behavior, or it's just a bug.
By the way, the version I tested is 2.6.20, but I believe 2.6.22 still got the problem according my experiment before.
Regards,
willer
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Ok, so I looked at this first. ocf_in_use is only set by ipsec_ocf_sa_init
and is only cleared by ipsec_ocf_sa_free.
The only possible explanations I can for now are
* there is memory corruption somewhere
(which OCF HW driver are you using ?)
* perhaps you are looking at an SA that has already been released ?
Did I ask which openswan version you are using ? Any idea which OCF version ?
Cheers
Davidm
--
David McCullough, david_mccullough at securecomputing.com, Ph:+61 734352815
McAfee - SnapGear http://www.snapgear.com http://www.uCdot.org
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