Change copyright statement to reflect reality
Fix some wrong escapeshellarg() calls
Add escapeshellarg() calls on exec parameters. While I'm here, replace some exec() calls by php functions like symlink, copy, unlink, mkdir
Add {} between variables inside quotes
Prepend ipsec_ here as well for better protection
Correct even here the routes from cisco-avpair processing
Use the pid of the process for the tmp file
Allow other system authentication types to be used with ipsec. LDAP/RADIUS/local acc