mirror of
https://github.com/matrix-construct/construct
synced 2024-07-29 13:58:43 +02:00
254 lines
6.9 KiB
C++
254 lines
6.9 KiB
C++
/*
|
|
* Copyright (C) 2017 Charybdis Development Team
|
|
* Copyright (C) 2017 Jason Volk <jason@zemos.net>
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice is present in all copies.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
|
|
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
|
|
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_NET_REMOTE_H
|
|
|
|
namespace ircd::net
|
|
{
|
|
struct remote;
|
|
struct ipport;
|
|
struct hostport;
|
|
|
|
const uint16_t &port(const hostport &);
|
|
const uint16_t &port(const ipport &);
|
|
uint16_t &port(hostport &);
|
|
uint16_t &port(ipport &);
|
|
|
|
bool is_v6(const ipport &);
|
|
bool is_v4(const ipport &);
|
|
|
|
const uint128_t &host6(const ipport &);
|
|
const uint32_t &host4(const ipport &);
|
|
const auto &host(const hostport &);
|
|
uint128_t &host6(ipport &);
|
|
uint32_t &host4(ipport &);
|
|
auto &host(hostport &);
|
|
|
|
string_view string(const uint32_t &, const mutable_buffer &buf);
|
|
string_view string(const uint128_t &, const mutable_buffer &buf);
|
|
string_view string(const hostport &, const mutable_buffer &buf);
|
|
string_view string(const ipport &, const mutable_buffer &buf);
|
|
string_view string(const remote &, const mutable_buffer &buf);
|
|
|
|
std::string string(const uint32_t &);
|
|
std::string string(const uint128_t &);
|
|
std::string string(const hostport &);
|
|
std::string string(const ipport &);
|
|
std::string string(const remote &);
|
|
}
|
|
|
|
/// This structure holds a hostname and port usually fresh from user input
|
|
/// intended for resolution.
|
|
///
|
|
/// The host can be specified as a hostname or hostname:port string. If no
|
|
/// port argument is specified and no port is present in the host string
|
|
/// then 8448 is assumed.
|
|
///
|
|
struct ircd::net::hostport
|
|
:std::pair<std::string, uint16_t>
|
|
{
|
|
static const hostport null;
|
|
|
|
hostport(std::string s, const uint16_t &port = 8448);
|
|
|
|
friend std::ostream &operator<<(std::ostream &, const hostport &);
|
|
};
|
|
|
|
/// This lightweight structure holds an IP address and port in native byte
|
|
/// form. It is usually returned from the result of a resolution but may also
|
|
/// serve as input to a reverse resolution. Either way, this allocation-free
|
|
/// structure is useful for storing raw IP/port data, even in large sets.
|
|
///
|
|
/// Constructing this object with a hostname will yield an IP address
|
|
/// resolution, the result being saved in the structure. The hostname argument
|
|
/// is not saved in the structure; consider using net::remote instead.
|
|
///
|
|
/// The TYPE field is only a boolean for now indicating IPv4 or IPv6; the
|
|
/// official way to query this is to use net::is_v6(ipport) etc and not
|
|
/// std::get the type directly.
|
|
///
|
|
struct ircd::net::ipport
|
|
:std::tuple<std::array<uint8_t, 16>, uint16_t, bool>
|
|
{
|
|
enum { IP, PORT, TYPE };
|
|
|
|
operator bool() const;
|
|
bool operator!() const { return !static_cast<bool>(*this); }
|
|
|
|
// Trivial constructors
|
|
ipport(const uint32_t &ip, const uint16_t &port);
|
|
ipport(const uint128_t &ip, const uint16_t &port);
|
|
|
|
// DNS lookup! May yield ircd::ctx!
|
|
ipport(const std::string &hostname, const std::string &port);
|
|
ipport(const std::string &hostname, const uint16_t &port);
|
|
ipport(const string_view &hostname, const string_view &port = "8448");
|
|
ipport(const string_view &hostname, const uint16_t &port);
|
|
ipport(const hostport &);
|
|
ipport();
|
|
|
|
friend std::ostream &operator<<(std::ostream &, const ipport &);
|
|
};
|
|
|
|
/// This structure combines features of hostport and ipport to hold a remote's
|
|
/// resolved IP in bytes, a port number, and an optional hostname string which
|
|
/// may have been used to resolve the IP, or may have been resolved from the
|
|
/// IP, or may just be empty, but either way still has some use being carried
|
|
/// along as part of this struct.
|
|
struct ircd::net::remote
|
|
:ircd::net::ipport
|
|
{
|
|
std::string hostname;
|
|
|
|
operator bool() const;
|
|
bool operator!() const { return !static_cast<bool>(*this); }
|
|
|
|
remote(std::string hostname, const std::string &port);
|
|
remote(std::string hostname, const uint16_t &port);
|
|
remote(std::string hostname);
|
|
explicit remote(const string_view &hostname, const string_view &port);
|
|
explicit remote(const string_view &hostname, const uint16_t &port);
|
|
remote(const string_view &hostname);
|
|
explicit remote(const ipport &);
|
|
remote(hostport);
|
|
remote() = default;
|
|
|
|
friend std::ostream &operator<<(std::ostream &, const remote &);
|
|
};
|
|
|
|
inline ircd::net::remote::operator
|
|
bool()
|
|
const
|
|
{
|
|
return bool(static_cast<const ipport &>(*this)) || !hostname.empty();
|
|
}
|
|
|
|
inline
|
|
ircd::net::ipport::ipport()
|
|
{
|
|
std::get<PORT>(*this) = 0;
|
|
std::get<TYPE>(*this) = 0;
|
|
//auto &ip(std::get<IP>(*this));
|
|
//std::fill(begin(ip), end(ip), 0x00);
|
|
}
|
|
|
|
inline
|
|
ircd::net::ipport::ipport(const uint32_t &ip,
|
|
const uint16_t &p)
|
|
{
|
|
std::get<TYPE>(*this) = false;
|
|
host4(*this) = ip;
|
|
port(*this) = p;
|
|
}
|
|
|
|
inline
|
|
ircd::net::ipport::ipport(const uint128_t &ip,
|
|
const uint16_t &p)
|
|
{
|
|
std::get<TYPE>(*this) = true;
|
|
host6(*this) = ip;
|
|
port(*this) = p;
|
|
}
|
|
|
|
inline ircd::net::ipport::operator
|
|
bool()
|
|
const
|
|
{
|
|
return std::get<PORT>(*this) != 0;
|
|
}
|
|
|
|
inline ircd::uint128_t &
|
|
ircd::net::host6(ipport &ipp)
|
|
{
|
|
auto &bytes{std::get<ipp.IP>(ipp)};
|
|
return *reinterpret_cast<uint128_t *>(bytes.data());
|
|
}
|
|
|
|
inline const ircd::uint128_t &
|
|
ircd::net::host6(const ipport &ipp)
|
|
{
|
|
const auto &bytes{std::get<ipp.IP>(ipp)};
|
|
return *reinterpret_cast<const uint128_t *>(bytes.data());
|
|
}
|
|
|
|
inline bool
|
|
ircd::net::is_v6(const ipport &ipp)
|
|
{
|
|
return std::get<ipp.TYPE>(ipp) == true;
|
|
}
|
|
|
|
inline uint32_t &
|
|
ircd::net::host4(ipport &ipp)
|
|
{
|
|
auto &bytes{std::get<ipp.IP>(ipp)};
|
|
return *reinterpret_cast<uint32_t *>(bytes.data());
|
|
}
|
|
|
|
inline const uint32_t &
|
|
ircd::net::host4(const ipport &ipp)
|
|
{
|
|
const auto &bytes{std::get<ipp.IP>(ipp)};
|
|
return *reinterpret_cast<const uint32_t *>(bytes.data());
|
|
}
|
|
|
|
inline bool
|
|
ircd::net::is_v4(const ipport &ipp)
|
|
{
|
|
return std::get<ipp.TYPE>(ipp) == false;
|
|
}
|
|
|
|
inline auto &
|
|
ircd::net::host(hostport &hp)
|
|
{
|
|
return hp.first;
|
|
}
|
|
|
|
inline const auto &
|
|
ircd::net::host(const hostport &hp)
|
|
{
|
|
return hp.first;
|
|
}
|
|
|
|
inline uint16_t &
|
|
ircd::net::port(ipport &ipp)
|
|
{
|
|
return std::get<ipp.PORT>(ipp);
|
|
}
|
|
|
|
inline const uint16_t &
|
|
ircd::net::port(const ipport &ipp)
|
|
{
|
|
return std::get<ipp.PORT>(ipp);
|
|
}
|
|
|
|
inline uint16_t &
|
|
ircd::net::port(hostport &hp)
|
|
{
|
|
return hp.second;
|
|
}
|
|
|
|
inline const uint16_t &
|
|
ircd::net::port(const hostport &hp)
|
|
{
|
|
return hp.second;
|
|
}
|