// 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) 2012-2022 OpenVPN 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 .
// Parse the argument of a "tun" or "tap" directive. Also parse an optional
// "/v4" or "/v6" after the tun name to denote IPv4 or IPv6 usage.
#ifndef OPENVPN_TUN_TUNSPEC_H
#define OPENVPN_TUN_TUNSPEC_H
#include
#include
namespace openvpn {
struct ParseTunSpec
{
OPENVPN_EXCEPTION(bad_tun_spec);
ParseTunSpec(const std::string &tun_spec)
: ipv6(false)
{
std::vector s = Split::by_char, NullLex, Split::NullLimit>(tun_spec, '/');
if (s.size() == 1)
{
tun_name = s[0];
}
else if (s.size() == 2)
{
tun_name = s[0];
if (s[1] == "v4")
ipv6 = false;
else if (s[1] == "v6")
ipv6 = true;
else
throw bad_tun_spec();
}
else
throw bad_tun_spec();
}
bool ipv6;
std::string tun_name;
};
} // namespace openvpn
#endif // OPENVPN_TUN_TUNSPEC_H