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2008-07-26Completely revamped the system for calling external programs and scripts:james1-8/+18
* All external programs and scripts are now called by execve() on unix and CreateProcess on Windows. * The system() function is no longer used. * Argument lists for external programs and scripts are now built by the new argv_printf function which natively outputs to string arrays (i.e. char *argv[] lists), never truncates its output, and eliminates the security issues inherent in formatting and parsing command lines, and dealing with argument quoting. * The --script-security directive has been added to offer policy controls on OpenVPN's execution of external programs and scripts. Also added a new plugin example (openvpn/plugin/examples/log.c) that logs information to stdout for every plugin method called by OpenVPN. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3122 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-07-18Added a warning when plugins are specified withoutjames1-0/+3
an absolute pathname. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3082 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-07-17Previously, OpenVPN might log a client's auth-user-passjames1-0/+3
password if the verbosity was set to a high debug level such as 7 or higher. Normally this would only be used by developers. Now, even at high debug levels, the password will not be output. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3073 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-07-14Copyright change OpenVPN Solutions LLC -> Telethra, Inc.james1-1/+1
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3048 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-06-11Updated copyright notice to 2008.james1-1/+1
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2995 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-06-11Merged connection profiles fromjames1-0/+3
http://svn.openvpn.net/projects/openvpn/test/conn git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2993 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-05-24Support asynchronous/deferred authentication injames1-1/+1
OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY plugin handler. See documentation in openvpn-plugin.h and example usage in plugin/defer/simple.c. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2969 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-05-12Moved branch into official BETA21 position.james1-1/+6
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2959 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-01-21Allow OpenVPN to run completely unprivileged under Linuxjames1-0/+7
by allowing openvpn --mktun to be used with --user and --group to set the UID/GID of the tun device node. Also added --iproute option to allow an alternative command to be executed in place of the default iproute2 command (Alon Bar-Lev). git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2639 e7ae566f-a301-0410-adde-c780ea21d3b5
2007-08-17AUTO_USERID feature -- if the auth-user-pass option is usedjames1-1/+1
with some argument ARG, then -ARG will be appended to the username string that is sent to the server. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2259 e7ae566f-a301-0410-adde-c780ea21d3b5
2006-11-23Fixed issue where struct env_set methods thatjames1-0/+1
change the value of an existing name=value pair would delay the freeing of the memory held by the previous name=value pair until the underlying client instance object is closed. This could cause a server that handles long-term client connections, resulting in many periodic calls to verify_callback, to needlessly grow the env_set memory allocation until the underlying client instance object is closed. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@1493 e7ae566f-a301-0410-adde-c780ea21d3b5
2006-11-13New try at AUTO_USERID.james1-0/+4
Implemented AUTO_USERID using MD5(MAC address(primary network adapter)). Currently implemented for Linux and Windows. Basically if ENABLE_AUTO_USERID is defined, the --auth-user-pass option will not prompt for username/password, but will rather generate a unique username and blank password. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@1459 e7ae566f-a301-0410-adde-c780ea21d3b5
2006-11-08Added time_ascii, time_duration, and time_unixjames1-0/+1
environmental variables for plugins and callback scripts. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@1440 e7ae566f-a301-0410-adde-c780ea21d3b5
2006-11-01Merged Alon's branch:v2.1_rc1james1-1/+2
svn merge -r1322:1392 https://svn.openvpn.net/projects/openvpn/contrib/alon/21rc/openvpn . Version 2.1_rc1 released git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@1420 e7ae566f-a301-0410-adde-c780ea21d3b5
2006-04-05Security Vulnerability -- An OpenVPN client connecting to ajames1-0/+1
malicious or compromised server could potentially receive "setenv" configuration directives from the server which could cause arbitrary code execution on the client via a LD_PRELOAD attack. A successful attack appears to require that (a) the client has agreed to allow the server to push configuration directives to it by including "pull" or the macro "client" in its configuration file, (b) the client configuration file uses a scripting directive such as "up" or "down", (c) the client succesfully authenticates the server, (d) the server is malicious or has been compromised and is under the control of the attacker, and (e) the attacker has at least some level of pre-existing control over files on the client (this might be accomplished by having the server respond to a client web request with a specially crafted file). The fix is to disallow "setenv" to be pushed to clients from the server, and to add a new directive "setenv-safe" which is pushable from the server, but which appends "OPENVPN_" to the name of each remotely set environmental variable. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@983 e7ae566f-a301-0410-adde-c780ea21d3b5
2005-11-09Removed annoying 'i' variable from add_option.james1-0/+1
Allow plugin and push directives to have multiple parameters specified instead of only 1 quoted parameter. Allow plugin and push directives to have multi-line parameter lists, such as: <plugin> my-plugin.so parm1 parm2 </plugin> git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@785 e7ae566f-a301-0410-adde-c780ea21d3b5
2005-11-05svn merge -r 771:780 $SO/trunk/openvpnjames1-0/+1
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@781 e7ae566f-a301-0410-adde-c780ea21d3b5
2005-10-31Windows reliability changes:james1-0/+2
* Added code to make sure that the local PATH environmental variable points to the Windows system32 directory. * Added new --ip-win32 adaptive mode which tries 'dynamic' and then fails over to 'netsh' if the DHCP negotiation fails. * Made --ip-win32 adaptive the default. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@739 e7ae566f-a301-0410-adde-c780ea21d3b5
2005-10-20Merged with Alon's r688.james1-3/+7
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@689 e7ae566f-a301-0410-adde-c780ea21d3b5
2005-09-26This is the start of the BETA21 branch.james1-0/+256
It includes the --topology feature, and TAP-Win32 driver changes to allow non-admin access. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@580 e7ae566f-a301-0410-adde-c780ea21d3b5
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