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Diffstat (limited to 'src/common/Asio/IpNetwork.cpp')
| -rw-r--r-- | src/common/Asio/IpNetwork.cpp | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/src/common/Asio/IpNetwork.cpp b/src/common/Asio/IpNetwork.cpp deleted file mode 100644 index 85f176d21e4..00000000000 --- a/src/common/Asio/IpNetwork.cpp +++ /dev/null @@ -1,284 +0,0 @@ -/* - * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * 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 General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "IpNetwork.h" -#include "IpAddress.h" -#include <boost/asio/ip/network_v4.hpp> -#include <boost/asio/ip/network_v6.hpp> -#include <algorithm> - -namespace -{ -std::vector<boost::asio::ip::network_v4> LocalV4Networks; -std::vector<boost::asio::ip::network_v6> LocalV6Networks; -} - -namespace Trinity::Net -{ -bool IsInLocalNetwork(boost::asio::ip::address const& clientAddress) -{ - if (clientAddress.is_v4()) - { - return std::any_of(LocalV4Networks.begin(), LocalV4Networks.end(), [clientAddressV4 = clientAddress.to_v4()](boost::asio::ip::network_v4 const& network) - { - return IsInNetwork(network, clientAddressV4); - }); - } - - if (clientAddress.is_v6()) - { - return std::any_of(LocalV6Networks.begin(), LocalV6Networks.end(), [clientAddressV6 = clientAddress.to_v6()](boost::asio::ip::network_v6 const& network) - { - return IsInNetwork(network, clientAddressV6); - }); - } - - return false; -}; - -bool IsInNetwork(boost::asio::ip::network_v4 const& network, boost::asio::ip::address_v4 const& clientAddress) -{ - if (clientAddress == network.address()) - return true; - - boost::asio::ip::network_v4 endpointAsNetwork = boost::asio::ip::make_network_v4(clientAddress, 32); - return endpointAsNetwork.is_subnet_of(network); -} - -bool IsInNetwork(boost::asio::ip::network_v6 const& network, boost::asio::ip::address_v6 const& clientAddress) -{ - if (clientAddress == network.address()) - return true; - - boost::asio::ip::network_v6 endpointAsNetwork = boost::asio::ip::make_network_v6(clientAddress, 128); - return endpointAsNetwork.is_subnet_of(network); -} - -Optional<std::size_t> SelectAddressForClient(boost::asio::ip::address const& clientAddress, std::span<boost::asio::ip::address const> const& addresses) -{ - Optional<std::size_t> localIpv6Index; - Optional<std::size_t> externalIpv6Index; - Optional<std::size_t> loopbackIpv6Index; - Optional<std::size_t> localIpv4Index; - Optional<std::size_t> externalIpv4Index; - Optional<std::size_t> loopbackIpv4Index; - - for (std::size_t i = 0; i < addresses.size(); ++i) - { - boost::asio::ip::address const& address = addresses[i]; - - if (address.is_loopback()) - { - if (address.is_v6() && !loopbackIpv6Index) - loopbackIpv6Index = i; - - if (address.is_v4() && !loopbackIpv4Index) - loopbackIpv4Index = i; - } - else if (IsInLocalNetwork(address)) - { - if (address.is_v6() && !localIpv6Index) - localIpv6Index = i; - - if (address.is_v4() && !localIpv4Index) - localIpv4Index = i; - } - else - { - if (address.is_v6() && !externalIpv6Index) - externalIpv6Index = i; - - if (address.is_v4() && !externalIpv4Index) - externalIpv4Index = i; - } - } - - if (IsInLocalNetwork(clientAddress) || clientAddress.is_loopback()) - { - // client is in the same network as this process, prefer local addresses - - // first, try finding a local ipv6 address - if (clientAddress.is_v6() && localIpv6Index) - { - // we have a usable ipv6 local address - return localIpv6Index; - } - - // we dont have a local v6, return local v4 - if (localIpv4Index) - return localIpv4Index; - } - - if (clientAddress.is_loopback()) - { - // fallback, search for a loopback address in configuration - if (clientAddress.is_v6() && loopbackIpv6Index) - return loopbackIpv6Index; - - if (loopbackIpv4Index) - return loopbackIpv4Index; - } - - // client is NOT in the same network as this process - if (clientAddress.is_v6() && externalIpv6Index) - return externalIpv6Index; - - return externalIpv4Index; -} -} - -#if TRINITY_PLATFORM == TRINITY_PLATFORM_WINDOWS - -#include <boost/dll/shared_library.hpp> -#include <iphlpapi.h> - -void Trinity::Net::ScanLocalNetworks() -{ - LocalV4Networks.clear(); - LocalV6Networks.clear(); - - boost::system::error_code dllError; - boost::dll::shared_library iphlp("Iphlpapi.dll", dllError, boost::dll::load_mode::search_system_folders); - if (dllError || !iphlp.is_loaded()) - return; - - auto getAdaptersAddresses = iphlp.get<decltype(GetAdaptersAddresses)>("GetAdaptersAddresses"); - if (!getAdaptersAddresses) - return; - - ULONG queryFlags = GAA_FLAG_SKIP_UNICAST | GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST | GAA_FLAG_SKIP_DNS_SERVER | GAA_FLAG_INCLUDE_PREFIX | GAA_FLAG_SKIP_FRIENDLY_NAME; - ULONG bufferSize = 0; - - if (getAdaptersAddresses(AF_UNSPEC, queryFlags, nullptr, nullptr, &bufferSize) != ERROR_BUFFER_OVERFLOW) - return; - - std::unique_ptr<std::byte[]> addressesBuffer = std::make_unique<std::byte[]>(bufferSize); - if (getAdaptersAddresses(AF_UNSPEC, queryFlags, nullptr, reinterpret_cast<IP_ADAPTER_ADDRESSES*>(addressesBuffer.get()), &bufferSize) != ERROR_SUCCESS) - return; - - for (IP_ADAPTER_ADDRESSES* itr = reinterpret_cast<IP_ADAPTER_ADDRESSES*>(addressesBuffer.get()); itr; itr = itr->Next) - { - if (itr->IfType == IF_TYPE_SOFTWARE_LOOPBACK) - continue; - - if (itr->OperStatus != IfOperStatusUp) - continue; - - for (IP_ADAPTER_PREFIX_XP* prefix = itr->FirstPrefix; prefix; prefix = prefix->Next) - { - switch (prefix->Address.lpSockaddr->sa_family) - { - case AF_INET: - { - SOCKADDR_IN* ipv4raw = reinterpret_cast<SOCKADDR_IN*>(prefix->Address.lpSockaddr); - boost::asio::ip::address_v4::bytes_type addressBytes; - std::memcpy(addressBytes.data(), &ipv4raw->sin_addr.s_addr, addressBytes.size()); - boost::asio::ip::address_v4 address = make_address_v4(addressBytes); - if (address.is_unspecified() || address.is_multicast() || address == boost::asio::ip::address_v4::broadcast()) - continue; - - LocalV4Networks.push_back(boost::asio::ip::make_network_v4(address, prefix->PrefixLength)); - break; - } - case AF_INET6: - { - SOCKADDR_IN6* ipv6raw = reinterpret_cast<SOCKADDR_IN6*>(prefix->Address.lpSockaddr); - boost::asio::ip::address_v6::bytes_type addressBytes; - std::memcpy(addressBytes.data(), ipv6raw->sin6_addr.s6_addr, addressBytes.size()); - boost::asio::ip::address_v6 address = make_address_v6(addressBytes, ipv6raw->sin6_scope_id); - if (address.is_unspecified() || address.is_multicast()) - continue; - - LocalV6Networks.push_back(boost::asio::ip::make_network_v6(address, prefix->PrefixLength)); - break; - } - default: - break; - } - } - } -} - -#else - -#include <numeric> -#include <ifaddrs.h> - -void Trinity::Net::ScanLocalNetworks() -{ - LocalV4Networks.clear(); - LocalV6Networks.clear(); - - ifaddrs* addressesLinkedList = nullptr; - if (getifaddrs(&addressesLinkedList) == -1) - return; - - for (ifaddrs* itr = addressesLinkedList; itr; itr = itr->ifa_next) - { - if (!itr->ifa_addr) - continue; - - switch (itr->ifa_addr->sa_family) - { - case AF_INET: - { - sockaddr_in* ipv4raw = reinterpret_cast<sockaddr_in*>(itr->ifa_addr); - boost::asio::ip::address_v4::bytes_type addressBytes; - std::memcpy(addressBytes.data(), &ipv4raw->sin_addr.s_addr, addressBytes.size()); - boost::asio::ip::address_v4 address = make_address_v4(addressBytes); - if (address.is_unspecified() || address.is_loopback() || address.is_multicast() || address == boost::asio::ip::address_v4::broadcast()) - continue; - - if (sockaddr_in* netmask4raw = reinterpret_cast<sockaddr_in*>(itr->ifa_netmask)) - { - boost::asio::ip::address_v4::bytes_type netmaskBytes; - std::memcpy(netmaskBytes.data(), &netmask4raw->sin_addr.s_addr, netmaskBytes.size()); - boost::asio::ip::address_v4 netmask = make_address_v4(netmaskBytes); - LocalV4Networks.push_back(boost::asio::ip::make_network_v4(address, netmask)); - } - else - LocalV4Networks.push_back(boost::asio::ip::make_network_v4(address, 32)); - break; - } - case AF_INET6: - { - sockaddr_in6* ipv6raw = reinterpret_cast<sockaddr_in6*>(itr->ifa_addr); - boost::asio::ip::address_v6::bytes_type addressBytes; - std::memcpy(addressBytes.data(), ipv6raw->sin6_addr.s6_addr, addressBytes.size()); - boost::asio::ip::address_v6 address = make_address_v6(addressBytes, ipv6raw->sin6_scope_id); - if (address.is_unspecified() || address.is_loopback() || address.is_multicast()) - continue; - - if (sockaddr_in6* netmask6raw = reinterpret_cast<sockaddr_in6*>(itr->ifa_netmask)) - { - int32 prefixLength = 0; - for (uint8 addressByte : netmask6raw->sin6_addr.s6_addr) - prefixLength += std::countl_one(addressByte); - - LocalV6Networks.push_back(boost::asio::ip::make_network_v6(address, prefixLength)); - } - else - LocalV6Networks.push_back(boost::asio::ip::make_network_v6(address, 128)); - break; - } - } - } - - freeifaddrs(addressesLinkedList); -} - -#endif |