Always push basic set of peer info values to server.

Always push basic set of peer info values to server.

On the client, allow certain peer info fields to be pushed even if
push-peer-info isn't specified in the config.

This is needed to allow the compression handshake to work correctly
(i.e. where the client indicates its support for LZO and/or Snappy).

Fields that have privacy implications such as Mac Address and UV_*
environment variables will not be pushed to the server as before unless
push-peer-info is specified by client config.

v1: equivalent to OpenVPN SVN r8225 (2.1.21c)

v2: distinguish 3 levels of peer-info detail

  --push-peer-info specified --> send all we have
  --pull           specified --> send basic set, as per r8225
  default                    --> send nothing (do not leak from server)

v3: undo extra whitespace changes in v1 and v2

Signed-off-by: Gert Doering <gert@greenie.muc.de>
Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <1369044801-7594-1-git-send-email-gert@greenie.muc.de>
URL: http://article.gmane.org/gmane.network.openvpn.devel/7604