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// 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- OpenVPN Inc.
//
// SPDX-License-Identifier: MPL-2.0 OR AGPL-3.0-only WITH openvpn3-openssl-exception
//
#pragma once
// OVPNAGENT_NAME can be passed on build command line.
// Customized agent name is needed with purpose to install
// few app with agents on one OS (e.g OC 3.0 and PT)
#ifdef OVPNAGENT_NAME
#define OVPNAGENT_NAME_STRING OPENVPN_STRINGIZE(OVPNAGENT_NAME)
#else
#define OVPNAGENT_NAME_STRING "ovpnagent"
#endif
#include <openvpn/common/string.hpp>
#include <openvpn/common/path.hpp>
namespace openvpn {
class Agent
{
public:
static std::string named_pipe_path()
{
return "\\\\.\\pipe\\" OVPNAGENT_NAME_STRING;
}
static bool valid_pipe(const std::string &client_exe,
const std::string &server_exe)
{
#ifdef OVPNAGENT_DISABLE_PATH_CHECK
return true;
#else
return normalize_exe_path(client_exe) == normalize_exe_path(server_exe);
#endif
}
private:
// If path starts with C:\..., lower-case the drive letter.
// Then strip off the basename and only return the dir.
static std::string normalize_exe_path(const std::string &path)
{
std::string p;
if (path.length() >= 3
&& std::isalpha(static_cast<unsigned char>(path[0])) != 0
&& path[1] == ':'
&& path[2] == '\\')
p = string::to_lower_copy(path.substr(0, 3)) + path.substr(3);
else
p = path;
p = path::dirname(p);
return p;
}
};
} // namespace openvpn
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