lokinet/llarp/net/net.hpp

123 lines
2.4 KiB
C++

#pragma once
#include "uint128.hpp"
#include "address_info.hpp"
#include "ip_address.hpp"
#include "net_int.hpp"
#include "net.h"
#include "ip_range.hpp"
#include <llarp/util/mem.hpp>
#include <llarp/util/bits.hpp>
#include <functional>
#include <cstdlib> // for itoa
#include <vector>
// for addrinfo
#ifndef _WIN32
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#else
#include <winsock2.h>
#include <ws2tcpip.h>
#include <wspiapi.h>
#define inet_aton(x, y) inet_pton(AF_INET, x, y)
#endif
#ifndef _WIN32
#include <arpa/inet.h>
#endif
bool
operator==(const sockaddr& a, const sockaddr& b);
bool
operator==(const sockaddr_in& a, const sockaddr_in& b);
bool
operator==(const sockaddr_in6& a, const sockaddr_in6& b);
bool
operator<(const sockaddr_in6& a, const sockaddr_in6& b);
bool
operator<(const in6_addr& a, const in6_addr& b);
bool
operator==(const in6_addr& a, const in6_addr& b);
namespace llarp
{
bool
IsIPv4Bogon(const huint32_t& addr);
inline bool
IsIPv4Bogon(const nuint32_t& addr)
{
return IsIPv4Bogon(ToHost(addr));
}
bool
IsBogon(const in6_addr& addr);
bool
IsBogon(const huint128_t addr);
bool
IsBogonRange(const in6_addr& host, const in6_addr& mask);
/// get a sock addr we can use for all interfaces given our public address
namespace net
{
std::optional<SockAddr>
AllInterfaces(SockAddr pubaddr);
}
/// compat shim
// TODO: remove me
inline bool
AllInterfaces(int af, SockAddr& addr)
{
if (auto maybe = net::AllInterfaces(SockAddr{af == AF_INET ? "0.0.0.0" : "::"}))
{
addr = *maybe;
return true;
}
return false;
}
/// get first network interface with public address
bool
GetBestNetIF(std::string& ifname, int af = AF_INET);
/// look at adapter ranges and find a free one
std::optional<IPRange>
FindFreeRange();
/// look at adapter names and find a free one
std::optional<std::string>
FindFreeTun();
/// get network interface address for network interface with ifname
std::optional<SockAddr>
GetInterfaceAddr(const std::string& ifname, int af = AF_INET);
/// get an interface's ip6 address
std::optional<huint128_t>
GetInterfaceIPv6Address(std::string ifname);
#ifdef _WIN32
namespace net
{
std::optional<int>
GetInterfaceIndex(huint32_t ip);
}
#endif
/// return true if we have a network interface with this ip
bool
HasInterfaceAddress(std::variant<nuint32_t, nuint128_t> ip);
} // namespace llarp