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openvpn3/openvpn/client/ipverflags.hpp
James Yonan 2b609ba0c6 IPVerFlags::api_flags() needs to return both the new
client-API-visible flags such as EmulateExcludeRoutes
as well as the RG_x flags.  Previously, the RG_x flags
were not made visible to the API, however some clients
(such as Mac) need to see them.

This is accomplished by moving EmulateExcludeRoutes to
(1<<16) so it doesn't conflict with the RG_x flags.
2015-04-30 10:35:25 -06:00

100 lines
2.6 KiB
C++

// OpenVPN -- An application to securely tunnel IP networks
// over a single port, with support for SSL/TLS-based
// session authentication and key exchange,
// packet encryption, packet authentication, and
// packet compression.
//
// Copyright (C) 2012-2015 OpenVPN Technologies, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License Version 3
// as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program in the COPYING file.
// If not, see <http://www.gnu.org/licenses/>.
#ifndef OPENVPN_CLIENT_IPVERFLAGS_H
#define OPENVPN_CLIENT_IPVERFLAGS_H
#include <openvpn/addr/ip.hpp>
#include <openvpn/client/rgopt.hpp>
#include <openvpn/tun/builder/rgwflags.hpp>
namespace openvpn {
class IPVerFlags
{
public:
IPVerFlags(const OptionList& opt,
const IP::Addr::VersionMask ip_ver_flags)
: ip_ver_flags_(ip_ver_flags),
rg_flags_(opt),
api_flags_(0)
{
}
bool rgv4() const
{
return v4() && rg_flags_.redirect_gateway_ipv4_enabled();
}
bool rgv6() const
{
return v6() && rg_flags_.redirect_gateway_ipv6_enabled();
}
bool v4() const
{
return (ip_ver_flags_ & IP::Addr::V4_MASK) ? true : false;
}
bool v6() const
{
return (ip_ver_flags_ & IP::Addr::V6_MASK) ? true : false;
}
IP::Addr::VersionMask rg_ver_flags() const
{
IP::Addr::VersionMask flags = 0;
if (rgv4())
flags |= IP::Addr::V4_MASK;
if (rgv6())
flags |= IP::Addr::V6_MASK;
return flags;
}
IP::Addr::VersionMask ip_ver_flags() const
{
IP::Addr::VersionMask flags = 0;
if (v4())
flags |= IP::Addr::V4_MASK;
if (v6())
flags |= IP::Addr::V6_MASK;
return flags;
}
// these flags are passed to tun_builder_reroute_gw method
unsigned int api_flags() const
{
return api_flags_ | rg_flags_();
}
void set_emulate_exclude_routes()
{
api_flags_ |= RGWFlags::EmulateExcludeRoutes;
}
private:
const IP::Addr::VersionMask ip_ver_flags_;
const RedirectGatewayFlags rg_flags_;
unsigned int api_flags_;
};
}
#endif