On Fri, Mar 20, 2015 at 04:45:11PM +0800, Antonio Borneo wrote:
> > open("/dev/net/tun", O_RDWR|O_CREAT, 0666) = 3
> Agree that what you found is bad.
> In vpnc code, file
> http://svn.unix-ag.uni-kl.de/vpnc/trunk/sysdep.c
> at line 439, there is
> if ((fd = open("/dev/net/tun", O_RDWR)) < 0) {
> that is correct. So the problem is somewhere else.
indeed, it is in /usr/share/vpnc-scripts/vpnc-script as the strace shows that
this cloned/execed process issues the open(). it seems to be line 596:
if (exec 6<> /dev/net/tun) > /dev/null 2>&1 ; then
which creates the file as a regular file if not existing.
regards,
--
M. Dietrich
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