457 lines
11 KiB
C++
457 lines
11 KiB
C++
#include <std_include.hpp>
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#include "loader/component_loader.hpp"
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#include <utils/hook.hpp>
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#include <utils/thread.hpp>
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#include "game/game.hpp"
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#include "game/demonware/servers/lobby_server.hpp"
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#include "game/demonware/servers/auth3_server.hpp"
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#include "game/demonware/servers/stun_server.hpp"
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#include "game/demonware/servers/umbrella_server.hpp"
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#include "game/demonware/server_registry.hpp"
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#include <game/dvars.hpp>
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#define TCP_BLOCKING true
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#define UDP_BLOCKING false
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namespace demonware
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{
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namespace
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{
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volatile bool exit_server;
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std::thread server_thread;
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utils::concurrency::container<std::unordered_map<SOCKET, bool>> blocking_sockets;
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utils::concurrency::container<std::unordered_map<SOCKET, tcp_server*>> socket_map;
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server_registry<tcp_server> tcp_servers;
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server_registry<udp_server> udp_servers;
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tcp_server* find_server(const SOCKET socket)
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{
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return socket_map.access<tcp_server*>([&](const std::unordered_map<SOCKET, tcp_server*>& map) -> tcp_server*
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{
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const auto entry = map.find(socket);
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if (entry == map.end())
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{
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return nullptr;
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}
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return entry->second;
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});
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}
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bool socket_link(const SOCKET socket, const uint32_t address)
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{
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auto* server = tcp_servers.find(address);
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if (!server)
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{
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return false;
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}
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socket_map.access([&](std::unordered_map<SOCKET, tcp_server*>& map)
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{
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map[socket] = server;
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});
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return true;
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}
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void socket_unlink(const SOCKET socket)
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{
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socket_map.access([&](std::unordered_map<SOCKET, tcp_server*>& map)
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{
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const auto entry = map.find(socket);
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if (entry != map.end())
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{
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map.erase(entry);
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}
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});
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}
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bool is_socket_blocking(const SOCKET socket, const bool def)
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{
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return blocking_sockets.access<bool>([&](std::unordered_map<SOCKET, bool>& map)
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{
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const auto entry = map.find(socket);
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if (entry == map.end())
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{
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return def;
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}
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return entry->second;
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});
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}
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void remove_blocking_socket(const SOCKET socket)
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{
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blocking_sockets.access([&](std::unordered_map<SOCKET, bool>& map)
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{
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const auto entry = map.find(socket);
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if (entry != map.end())
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{
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map.erase(entry);
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}
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});
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}
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void add_blocking_socket(const SOCKET socket, const bool block)
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{
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blocking_sockets.access([&](std::unordered_map<SOCKET, bool>& map)
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{
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map[socket] = block;
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});
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}
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void server_main()
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{
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exit_server = false;
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while (!exit_server)
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{
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tcp_servers.frame();
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udp_servers.frame();
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std::this_thread::sleep_for(50ms);
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}
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}
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namespace io
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{
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hostent* gethostbyname_stub(const char* name)
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{
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#ifdef DEBUG
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printf("[ network ]: [gethostbyname]: \"%s\"\n", name);
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#endif
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base_server* server = tcp_servers.find(name);
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if (!server)
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{
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server = udp_servers.find(name);
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}
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if (!server)
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{
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#pragma warning(push)
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#pragma warning(disable: 4996)
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return gethostbyname(name);
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#pragma warning(pop)
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}
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static thread_local in_addr address{};
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address.s_addr = server->get_address();
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static thread_local in_addr* addr_list[2]{};
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addr_list[0] = &address;
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addr_list[1] = nullptr;
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static thread_local hostent host{};
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host.h_name = const_cast<char*>(name);
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host.h_aliases = nullptr;
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host.h_addrtype = AF_INET;
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host.h_length = sizeof(in_addr);
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host.h_addr_list = reinterpret_cast<char**>(addr_list);
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return &host;
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}
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int connect_stub(const SOCKET s, const struct sockaddr* addr, const int len)
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{
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if (len == sizeof(sockaddr_in))
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{
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const auto* in_addr = reinterpret_cast<const sockaddr_in*>(addr);
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if (socket_link(s, in_addr->sin_addr.s_addr)) return 0;
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}
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return connect(s, addr, len);
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}
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int closesocket_stub(const SOCKET s)
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{
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remove_blocking_socket(s);
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socket_unlink(s);
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return closesocket(s);
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}
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int send_stub(const SOCKET s, const char* buf, const int len, const int flags)
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{
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auto* server = find_server(s);
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if (server)
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{
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server->handle_input(buf, len);
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return len;
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}
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return send(s, buf, len, flags);
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}
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int recv_stub(const SOCKET s, char* buf, const int len, const int flags)
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{
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auto* server = find_server(s);
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if (server)
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{
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if (server->pending_data())
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{
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return static_cast<int>(server->handle_output(buf, len));
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}
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else
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{
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WSASetLastError(WSAEWOULDBLOCK);
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return -1;
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}
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}
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return recv(s, buf, len, flags);
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}
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int sendto_stub(const SOCKET s, const char* buf, const int len, const int flags, const sockaddr* to,
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const int tolen)
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{
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const auto* in_addr = reinterpret_cast<const sockaddr_in*>(to);
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auto* server = udp_servers.find(in_addr->sin_addr.s_addr);
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if (server)
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{
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server->handle_input(buf, len, { s, to, tolen });
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return len;
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}
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return sendto(s, buf, len, flags, to, tolen);
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}
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int recvfrom_stub(const SOCKET s, char* buf, const int len, const int flags, struct sockaddr* from,
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int* fromlen)
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{
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// Not supported yet
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if (is_socket_blocking(s, UDP_BLOCKING))
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{
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return recvfrom(s, buf, len, flags, from, fromlen);
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}
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size_t result = 0;
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udp_servers.for_each([&](udp_server& server)
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{
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if (server.pending_data(s))
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{
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result = server.handle_output(
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s, buf, static_cast<size_t>(len), from, fromlen);
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}
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});
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if (result)
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{
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return static_cast<int>(result);
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}
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return recvfrom(s, buf, len, flags, from, fromlen);
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}
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int select_stub(const int nfds, fd_set* readfds, fd_set* writefds, fd_set* exceptfds,
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struct timeval* timeout)
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{
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if (exit_server)
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{
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return select(nfds, readfds, writefds, exceptfds, timeout);
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}
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auto result = 0;
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std::vector<SOCKET> read_sockets;
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std::vector<SOCKET> write_sockets;
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socket_map.access([&](std::unordered_map<SOCKET, tcp_server*>& sockets)
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{
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for (auto& s : sockets)
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{
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if (readfds)
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{
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if (FD_ISSET(s.first, readfds))
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{
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if (s.second->pending_data())
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{
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read_sockets.push_back(s.first);
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FD_CLR(s.first, readfds);
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}
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}
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}
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if (writefds)
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{
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if (FD_ISSET(s.first, writefds))
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{
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write_sockets.push_back(s.first);
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FD_CLR(s.first, writefds);
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}
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}
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if (exceptfds)
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{
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if (FD_ISSET(s.first, exceptfds))
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{
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FD_CLR(s.first, exceptfds);
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}
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}
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}
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});
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if ((!readfds || readfds->fd_count == 0) && (!writefds || writefds->fd_count == 0))
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{
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timeout->tv_sec = 0;
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timeout->tv_usec = 0;
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}
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result = select(nfds, readfds, writefds, exceptfds, timeout);
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if (result < 0) result = 0;
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for (const auto& socket : read_sockets)
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{
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if (readfds)
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{
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FD_SET(socket, readfds);
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result++;
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}
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}
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for (const auto& socket : write_sockets)
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{
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if (writefds)
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{
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FD_SET(socket, writefds);
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result++;
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}
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}
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return result;
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}
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int ioctlsocket_stub(const SOCKET s, const long cmd, u_long* argp)
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{
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if (static_cast<unsigned long>(cmd) == (FIONBIO))
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{
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add_blocking_socket(s, *argp == 0);
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}
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return ioctlsocket(s, cmd, argp);
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}
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BOOL internet_get_connected_state_stub(LPDWORD, DWORD)
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{
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// Allow offline play
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return TRUE;
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}
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}
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void bd_logger_stub(const char* const function, const char* const msg, ...)
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{
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game::dvar_t* enabled;
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enabled = dvars::register_bool("bd_logger_enabled", false, game::DVAR_FLAG_SAVED, true);
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//game::Dvar_RegisterBool("bd_logger_enabled", false, game::DVAR_FLAG_SAVED, "bdLogger")
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if (!enabled->current.enabled)
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{
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return;
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}
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char buffer[2048];
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va_list ap;
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va_start(ap, msg);
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vsnprintf_s(buffer, sizeof(buffer), _TRUNCATE, msg, ap);
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printf("%s: %s\n", function, buffer);
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va_end(ap);
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}
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}
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class component final : public component_interface
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{
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public:
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component()
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{
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udp_servers.create<stun_server>("phoenix.stun.us.demonware.net");
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udp_servers.create<stun_server>("phoenix.stun.eu.demonware.net");
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udp_servers.create<stun_server>("phoenix.stun.jp.demonware.net");
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udp_servers.create<stun_server>("phoenix.stun.au.demonware.net");
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udp_servers.create<stun_server>("stun.us.demonware.net");
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udp_servers.create<stun_server>("stun.eu.demonware.net");
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udp_servers.create<stun_server>("stun.jp.demonware.net");
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udp_servers.create<stun_server>("stun.au.demonware.net");
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tcp_servers.create<auth3_server>("mwr-pc-steam-auth3.prod.demonware.net");
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tcp_servers.create<lobby_server>("mwr-pc-steam-lobby.prod.demonware.net");
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tcp_servers.create<umbrella_server>("prod.umbrella.demonware.net");
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}
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void post_load() override
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{
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server_thread = utils::thread::create_named_thread("Demonware", server_main);
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}
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void* load_import(const std::string& library, const std::string& function) override
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{
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if (library == "WS2_32.dll")
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{
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if (function == "#3") return io::closesocket_stub;
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if (function == "#4") return io::connect_stub;
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if (function == "#10") return io::ioctlsocket_stub;
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if (function == "#16") return io::recv_stub;
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if (function == "#17") return io::recvfrom_stub;
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if (function == "#18") return io::select_stub;
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if (function == "#19") return io::send_stub;
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if (function == "#20") return io::sendto_stub;
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if (function == "#52") return io::gethostbyname_stub;
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}
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if (function == "InternetGetConnectedState")
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{
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return io::internet_get_connected_state_stub;
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}
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return nullptr;
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}
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void post_unpack() override
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{
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/*
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mwr has upgraded some networking methods and the gethostbyname import from winsock library is no longer used
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gethostbyname has been replaced with getaddrinfo
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btw, still you can't get online..
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*/
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utils::hook::jump(SELECT_VALUE(0x140610320, 0x1407400B0), bd_logger_stub); // H1MP64(1.4)
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if (game::environment::is_sp())
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{
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utils::hook::set<uint8_t>(0x1405FCA00, 0xC3); // bdAuthSteam H1(1.4)
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utils::hook::set<uint8_t>(0x140333A00, 0xC3); // dwNet H1(1.4)
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return;
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}
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utils::hook::set<uint8_t>(0x140715039, 0x0); // CURLOPT_SSL_VERIFYPEER H1MP64(1.4)
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utils::hook::set<uint8_t>(0x140715025, 0xAF); // CURLOPT_SSL_VERIFYHOST H1MP64(1.4)
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utils::hook::set<uint8_t>(0x14095433C, 0x0); // HTTPS -> HTTP [MWR OK][S1X: 0x14088D0E8]
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//HTTPS -> HTTP
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utils::hook::inject(0x14006DDA9, "http://prod.umbrella.demonware.net/v1.0/"); // ---> [H1MP1.4 - S1X: 0x14003852E]
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utils::hook::inject(0x14006E11C, "http://prod.umbrella.demonware.net/v1.0/"); // ---> [H1MP1.4 - S1X: 0x14003884F]
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utils::hook::inject(0x14006E2FB, "http://prod.umbrella.demonware.net/v1.0/"); // ---> [H1MP1.4 - S1X: 0x140038A07]
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utils::hook::set<uint8_t>(0x14047F290, 0xC3); // SV_SendMatchData H1MP64(1.4)
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utils::hook::set<uint8_t>(0x140598990, 0xC3); // Live_CheckForFullDisconnect H1MP64(1.4)
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}
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void pre_destroy() override
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{
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exit_server = true;
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if (server_thread.joinable())
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{
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server_thread.join();
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}
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}
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};
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}
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REGISTER_COMPONENT(demonware::component) |