KPI: socket filter’s sf_data_in not called for data over IPSec VPN
KPI: socket filter’s sf_data_in not called for data over IPSec VPN
- Subject: KPI: socket filter’s sf_data_in not called for data over IPSec VPN
- From: Karl Schwarzott <email@hidden>
- Date: Wed, 12 Nov 2014 15:33:08 +0100
A kernel extension that uses sflt_register to register a socket filter that has the socket filter’s sf_data_in callback set usually works fine. But on OS X Yosemite, as soon as an IPSec VPN connection is established (using OS X’s built–in client configured via System Preferences > Network), data transmitted via the VPN does not cause that sf_data_in function to be called on OS X Yosemite. This problem applies to incoming packages of any protocol: TCP, UDP, ICMP, …
Everything works fine on OS X Mavericks and earlier, but OS X Yosemite has that problem. Has anybody else encountered this problem and is there any known workaround?
Cheers,
Karl
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