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2011-04-14Change the default --tmp-dir path to a more suitable pathDavid Sommerseth1-0/+19
In commit 4e1cc5f6dda22e9 the create_temp_filename() function was reviewed and hardened, which in the end renamed this function to create_temp_file() in commit 495e3cec5d156. With these changes it became more evident that OpenVPN needs a directory where it can create temporary files. The create_temp_file() will create such files f.ex. if --client-connect or --plugin which makes use of the OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY hook, such as openvpn-auth-pam.so. When this happens, OpenVPN will normally create these files in the directory OpenVPN was started. In many cases, this will fail due to restricted access. By using --tmp-dir and pointing it to a directory writeable to the user running OpenVPN, it works again. This patch makes OpenVPN use a more suitable temproary directory by default, instead of the current working directory. On non-Windows platforms this default value is set to '/tmp', but can be modified at compile-time by running ./configure --with-tmp-dir-path=<TEMP DIR PATH>. On Windows, it will use GetTempPath() to find temporary paths recommended by the OS. If this fails, it will fallback to the old behaviour, using the directory where OpenVPN was started. In any cases, this default value can be overridden in the configuration file by using the --tmp-dir option, as before. To check what the default is at runime, you can see this easily by doing this: $ ./openvpn --verb 4 --dev tun | grep tmp_dir Signed-off-by: David Sommerseth <davids@redhat.com> Tested-by: Jan Just Keijser <janjust@nikhef.nl> Acked-by: Gert Doering <gert@greenie.muc.de>
2010-10-21Revamped the script-security warning logging (version 2)David Sommerseth1-1/+4
The main task of this patch is to avoid reporting the SCRIPT_SECURITY_WARNING over and over again, in addition to not show this warning when it should not be a problem. This general warning should now only appear once, and only when --script-security is not set, 0 or 1. In all other cases this warning should not appear. In addition, this warning will come close to the script-hook which most probably will fail. It will also give a little bit more concrete hint on which script-hook which failed. If --script-security is 2 or 3, only the execve failure itself will be shown. This message will on the other hand be shown repeatedly. This is a new rewritten version which simplifies the implementaion of the new openvpn_run_script() function. It was considered to remove it completely, but due to code clearity and easy of use it was decided to make this function a static inline function instead. Anyhow, this function will enforce openvpn_execve_check() to be called with the S_SCRIPT flag. Patch ACKed on the developers meeting 2009-04-29. Signed-off-by: David Sommerseth <dazo@users.sourceforge.net> Acked-by: James Yonan <james@openvpn.net>
2010-07-16Added --register-dns option for Windows.James Yonan1-6/+2
Fixed some issues on Windows with --log, subprocess creation for command execution, and stdout/stderr redirection. Version 2.1.1m. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@6304 e7ae566f-a301-0410-adde-c780ea21d3b5
2010-04-29Revamped the script-security warning logging (version 2)David Sommerseth1-1/+4
The main task of this patch is to avoid reporting the SCRIPT_SECURITY_WARNING over and over again, in addition to not show this warning when it should not be a problem. This general warning should now only appear once, and only when --script-security is not set, 0 or 1. In all other cases this warning should not appear. In addition, this warning will come close to the script-hook which most probably will fail. It will also give a little bit more concrete hint on which script-hook which failed. If --script-security is 2 or 3, only the execve failure itself will be shown. This message will on the other hand be shown repeatedly. This is a new rewritten version which simplifies the implementaion of the new openvpn_run_script() function. It was considered to remove it completely, but due to code clearity and easy of use it was decided to make this function a static inline function instead. Anyhow, this function will enforce openvpn_execve_check() to be called with the S_SCRIPT flag. Patch ACKed on the developers meeting 2009-04-29. Signed-off-by: David Sommerseth <dazo@users.sourceforge.net> Acked-by: James Yonan <james@openvpn.net>
2010-04-28Updated copyright date to 2010.James Yonan1-1/+1
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5599 e7ae566f-a301-0410-adde-c780ea21d3b5
2009-11-19Fixed a client-side bug that occurred when the "dhcp-pre-release"james1-0/+45
or "dhcp-renew" options were combined with "route-gateway dhcp". The problem is that the IP Helper functions for DHCP release and renew are blocking, and so calling them from a single-threaded client stops tunnel traffic forwarding, and hence breaks "route-gateway dhcp" which requires an active tunnel. The fix is to call the IP Helper functions for DHCP release and renew from another process. Version 2.1_rc21b. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@5164 e7ae566f-a301-0410-adde-c780ea21d3b5
2009-05-30Update copyright to 2009.james1-1/+1
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@4477 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-11-17* Added additional method parameter to --script-security to preservejames1-26/+83
backward compatibility with system() call semantics used in OpenVPN 2.1_rc8 and earlier. To preserve backward compatibility use: script-security 3 system git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3495 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-10-15Added additional warning messages about --script-security 2james1-1/+1
or higher being required to execute user-defined scripts or executables. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3436 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-10-06Copyright notice changed to reflect change in name ofjames1-1/+1
Telethra to OpenVPN Technologies. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3409 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-07-26Fixed compiler warnings in Windows build (MinGW).james1-1/+0
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3125 e7ae566f-a301-0410-adde-c780ea21d3b5
2008-07-26Completely revamped the system for calling external programs and scripts:james1-0/+177
* 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
2008-07-17gen_path now rejects filenames that match Windowsjames1-0/+63
device names such as CON, NUL, LPT1, etc. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@3072 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
2008-05-12Moved branch into official BETA21 position.james1-3/+1
git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@2959 e7ae566f-a301-0410-adde-c780ea21d3b5
2006-06-26Removed spurious executable propset fromjames1-0/+0
several source files. git-svn-id: http://svn.openvpn.net/projects/openvpn/branches/BETA21/openvpn@1048 e7ae566f-a301-0410-adde-c780ea21d3b5
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