Set proxy settings in registry:
HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings
If process is running under SYSTEM account, we impersonate to
logged-in user to access HKEY_CURRENT_USER.
After modifying proxy setting we need to tell Windows to refresh those,
we do it if process is running under user account. Unfortunately WinInet API
we use is not available for services, even with impersonation, so
user application should take care of refreshing settings.
Signed-off-by: Lev Stipakov <lev@openvpn.net>
* Where unicode/ansi versions of a method exist, always
explicitly call one of unicode or ansi methods by
appending a 'W' or 'A' to the end of the method name.
Never omit the 'W' or 'A' because that will cause the
default method to be used which may vary according to
build flags.
* Prepend all Windows API method references with "::" to
indicate that the method names should be resolved from
the top-level namespace.
Implemented full TunClient class for Windows with TAP driver
support. For now, we use netsh (rather than TAP driver DHCP)
to set all tunnel adapter properties, as this appears to work
great on Windows 7.
IPv6 is fully supported.
Known isues:
* netsh doesn't have a command for adding DNS search domains, so
we don't support them yet.
* While we always try to remove routes and added properties from
TAP adapter instance when we close out the session, for robustness,
when we bring up TAP adapter, we should try to delete any stale
routes on interface left over from previous session.
* Right now we call netsh with system(). For security and
compatibility with Windows apps (not only console apps),
we should use CreateProcess instead.
