00001
00002
00003
00004
00005
00006
00007
00008
00009
00012 #include "../stdafx.h"
00013
00014 #ifdef ENABLE_NETWORK
00015
00016 #include "../strings_func.h"
00017 #include "../command_func.h"
00018 #include "../date_func.h"
00019 #include "network_admin.h"
00020 #include "network_client.h"
00021 #include "network_server.h"
00022 #include "network_content.h"
00023 #include "network_udp.h"
00024 #include "network_gamelist.h"
00025 #include "network_base.h"
00026 #include "core/udp.h"
00027 #include "core/host.h"
00028 #include "network_gui.h"
00029 #include "../console_func.h"
00030 #include "../3rdparty/md5/md5.h"
00031 #include "../core/random_func.hpp"
00032 #include "../window_func.h"
00033 #include "../company_func.h"
00034 #include "../company_base.h"
00035 #include "../landscape_type.h"
00036 #include "../rev.h"
00037 #include "../core/pool_func.hpp"
00038 #include "../gfx_func.h"
00039 #include "../error.h"
00040 #include "table/strings.h"
00041
00042 #ifdef DEBUG_DUMP_COMMANDS
00043 #include "../fileio_func.h"
00045 bool _ddc_fastforward = true;
00046 #endif
00047
00049 assert_compile(NetworkClientInfoPool::MAX_SIZE == NetworkClientSocketPool::MAX_SIZE);
00050
00052 NetworkClientInfoPool _networkclientinfo_pool("NetworkClientInfo");
00053 INSTANTIATE_POOL_METHODS(NetworkClientInfo)
00054
00055 bool _networking;
00056 bool _network_server;
00057 bool _network_available;
00058 bool _network_dedicated;
00059 bool _is_network_server;
00060 NetworkServerGameInfo _network_game_info;
00061 NetworkCompanyState *_network_company_states = NULL;
00062 ClientID _network_own_client_id;
00063 ClientID _redirect_console_to_client;
00064 bool _network_need_advertise;
00065 uint32 _network_last_advertise_frame;
00066 uint8 _network_reconnect;
00067 StringList _network_bind_list;
00068 StringList _network_host_list;
00069 StringList _network_ban_list;
00070 uint32 _frame_counter_server;
00071 uint32 _frame_counter_max;
00072 uint32 _frame_counter;
00073 uint32 _last_sync_frame;
00074 NetworkAddressList _broadcast_list;
00075 uint32 _sync_seed_1;
00076 #ifdef NETWORK_SEND_DOUBLE_SEED
00077 uint32 _sync_seed_2;
00078 #endif
00079 uint32 _sync_frame;
00080 bool _network_first_time;
00081 bool _network_udp_server;
00082 uint16 _network_udp_broadcast;
00083 uint8 _network_advertise_retries;
00084 CompanyMask _network_company_passworded;
00085
00086
00087 assert_compile((int)NETWORK_NUM_LANDSCAPES == (int)NUM_LANDSCAPE);
00088 assert_compile((int)NETWORK_COMPANY_NAME_LENGTH == MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH);
00089
00090 extern NetworkUDPSocketHandler *_udp_client_socket;
00091 extern NetworkUDPSocketHandler *_udp_server_socket;
00092 extern NetworkUDPSocketHandler *_udp_master_socket;
00093
00095 byte _network_clients_connected = 0;
00096
00097
00098 extern void StateGameLoop();
00099
00103 NetworkClientInfo::~NetworkClientInfo()
00104 {
00105
00106 InvalidateWindowData(WC_SEND_NETWORK_MSG, DESTTYPE_CLIENT, this->client_id);
00107 }
00108
00114 NetworkClientInfo *NetworkClientInfo::GetByClientID(ClientID client_id)
00115 {
00116 NetworkClientInfo *ci;
00117
00118 FOR_ALL_CLIENT_INFOS(ci) {
00119 if (ci->client_id == client_id) return ci;
00120 }
00121
00122 return NULL;
00123 }
00124
00130 ServerNetworkGameSocketHandler *ServerNetworkGameSocketHandler::GetByClientID(ClientID client_id)
00131 {
00132 NetworkClientSocket *cs;
00133
00134 FOR_ALL_CLIENT_SOCKETS(cs) {
00135 if (cs->client_id == client_id) return cs;
00136 }
00137
00138 return NULL;
00139 }
00140
00141 byte NetworkSpectatorCount()
00142 {
00143 const NetworkClientInfo *ci;
00144 byte count = 0;
00145
00146 FOR_ALL_CLIENT_INFOS(ci) {
00147 if (ci->client_playas == COMPANY_SPECTATOR) count++;
00148 }
00149
00150
00151 if (_network_dedicated) count--;
00152
00153 return count;
00154 }
00155
00162 const char *NetworkChangeCompanyPassword(CompanyID company_id, const char *password)
00163 {
00164 if (strcmp(password, "*") == 0) password = "";
00165
00166 if (_network_server) {
00167 NetworkServerSetCompanyPassword(company_id, password, false);
00168 } else {
00169 NetworkClientSetCompanyPassword(password);
00170 }
00171
00172 return password;
00173 }
00174
00182 const char *GenerateCompanyPasswordHash(const char *password, const char *password_server_id, uint32 password_game_seed)
00183 {
00184 if (StrEmpty(password)) return password;
00185
00186 char salted_password[NETWORK_SERVER_ID_LENGTH];
00187
00188 memset(salted_password, 0, sizeof(salted_password));
00189 snprintf(salted_password, sizeof(salted_password), "%s", password);
00190
00191 for (uint i = 0; i < NETWORK_SERVER_ID_LENGTH - 1; i++) {
00192 salted_password[i] ^= password_server_id[i] ^ (password_game_seed >> (i % 32));
00193 }
00194
00195 Md5 checksum;
00196 uint8 digest[16];
00197 static char hashed_password[NETWORK_SERVER_ID_LENGTH];
00198
00199
00200 checksum.Append(salted_password, sizeof(salted_password) - 1);
00201 checksum.Finish(digest);
00202
00203 for (int di = 0; di < 16; di++) sprintf(hashed_password + di * 2, "%02x", digest[di]);
00204 hashed_password[lengthof(hashed_password) - 1] = '\0';
00205
00206 return hashed_password;
00207 }
00208
00214 bool NetworkCompanyIsPassworded(CompanyID company_id)
00215 {
00216 return HasBit(_network_company_passworded, company_id);
00217 }
00218
00219
00220
00221
00222 void NetworkTextMessage(NetworkAction action, TextColour colour, bool self_send, const char *name, const char *str, int64 data)
00223 {
00224 StringID strid;
00225 switch (action) {
00226 case NETWORK_ACTION_SERVER_MESSAGE:
00227
00228 strid = STR_NETWORK_SERVER_MESSAGE;
00229 colour = CC_DEFAULT;
00230 break;
00231 case NETWORK_ACTION_COMPANY_SPECTATOR:
00232 colour = CC_DEFAULT;
00233 strid = STR_NETWORK_MESSAGE_CLIENT_COMPANY_SPECTATE;
00234 break;
00235 case NETWORK_ACTION_COMPANY_JOIN:
00236 colour = CC_DEFAULT;
00237 strid = STR_NETWORK_MESSAGE_CLIENT_COMPANY_JOIN;
00238 break;
00239 case NETWORK_ACTION_COMPANY_NEW:
00240 colour = CC_DEFAULT;
00241 strid = STR_NETWORK_MESSAGE_CLIENT_COMPANY_NEW;
00242 break;
00243 case NETWORK_ACTION_JOIN:
00244
00245 strid = _network_server ? STR_NETWORK_MESSAGE_CLIENT_JOINED_ID : STR_NETWORK_MESSAGE_CLIENT_JOINED;
00246 break;
00247 case NETWORK_ACTION_LEAVE: strid = STR_NETWORK_MESSAGE_CLIENT_LEFT; break;
00248 case NETWORK_ACTION_NAME_CHANGE: strid = STR_NETWORK_MESSAGE_NAME_CHANGE; break;
00249 case NETWORK_ACTION_GIVE_MONEY: strid = self_send ? STR_NETWORK_MESSAGE_GAVE_MONEY_AWAY : STR_NETWORK_MESSAGE_GIVE_MONEY; break;
00250 case NETWORK_ACTION_CHAT_COMPANY: strid = self_send ? STR_NETWORK_CHAT_TO_COMPANY : STR_NETWORK_CHAT_COMPANY; break;
00251 case NETWORK_ACTION_CHAT_CLIENT: strid = self_send ? STR_NETWORK_CHAT_TO_CLIENT : STR_NETWORK_CHAT_CLIENT; break;
00252 default: strid = STR_NETWORK_CHAT_ALL; break;
00253 }
00254
00255 char message[1024];
00256 SetDParamStr(0, name);
00257 SetDParamStr(1, str);
00258 SetDParam(2, data);
00259
00260
00261
00262
00263
00264 char *msg_ptr = message + Utf8Encode(message, _current_text_dir == TD_LTR ? CHAR_TD_LRM : CHAR_TD_RLM);
00265 GetString(msg_ptr, strid, lastof(message));
00266
00267 DEBUG(desync, 1, "msg: %08x; %02x; %s", _date, _date_fract, message);
00268 IConsolePrintF(colour, "%s", message);
00269 NetworkAddChatMessage((TextColour)colour, _settings_client.gui.network_chat_timeout, "%s", message);
00270 }
00271
00272
00273 uint NetworkCalculateLag(const NetworkClientSocket *cs)
00274 {
00275 int lag = cs->last_frame_server - cs->last_frame;
00276
00277
00278
00279 if (cs->last_frame_server + DAY_TICKS + _settings_client.network.frame_freq < _frame_counter) {
00280 lag += _frame_counter - (cs->last_frame_server + DAY_TICKS + _settings_client.network.frame_freq);
00281 }
00282 return lag;
00283 }
00284
00285
00286
00287
00288 void NetworkError(StringID error_string)
00289 {
00290 _switch_mode = SM_MENU;
00291 ShowErrorMessage(error_string, INVALID_STRING_ID, WL_CRITICAL);
00292 }
00293
00299 StringID GetNetworkErrorMsg(NetworkErrorCode err)
00300 {
00301
00302
00303 static const StringID network_error_strings[] = {
00304 STR_NETWORK_ERROR_CLIENT_GENERAL,
00305 STR_NETWORK_ERROR_CLIENT_DESYNC,
00306 STR_NETWORK_ERROR_CLIENT_SAVEGAME,
00307 STR_NETWORK_ERROR_CLIENT_CONNECTION_LOST,
00308 STR_NETWORK_ERROR_CLIENT_PROTOCOL_ERROR,
00309 STR_NETWORK_ERROR_CLIENT_NEWGRF_MISMATCH,
00310 STR_NETWORK_ERROR_CLIENT_NOT_AUTHORIZED,
00311 STR_NETWORK_ERROR_CLIENT_NOT_EXPECTED,
00312 STR_NETWORK_ERROR_CLIENT_WRONG_REVISION,
00313 STR_NETWORK_ERROR_CLIENT_NAME_IN_USE,
00314 STR_NETWORK_ERROR_CLIENT_WRONG_PASSWORD,
00315 STR_NETWORK_ERROR_CLIENT_COMPANY_MISMATCH,
00316 STR_NETWORK_ERROR_CLIENT_KICKED,
00317 STR_NETWORK_ERROR_CLIENT_CHEATER,
00318 STR_NETWORK_ERROR_CLIENT_SERVER_FULL,
00319 STR_NETWORK_ERROR_CLIENT_TOO_MANY_COMMANDS
00320 };
00321
00322 if (err >= (ptrdiff_t)lengthof(network_error_strings)) err = NETWORK_ERROR_GENERAL;
00323
00324 return network_error_strings[err];
00325 }
00326
00332 void NetworkHandlePauseChange(PauseMode prev_mode, PauseMode changed_mode)
00333 {
00334 if (!_networking) return;
00335
00336 switch (changed_mode) {
00337 case PM_PAUSED_NORMAL:
00338 case PM_PAUSED_JOIN:
00339 case PM_PAUSED_ACTIVE_CLIENTS: {
00340 bool changed = ((_pause_mode == PM_UNPAUSED) != (prev_mode == PM_UNPAUSED));
00341 bool paused = (_pause_mode != PM_UNPAUSED);
00342 if (!paused && !changed) return;
00343
00344 StringID str;
00345 if (!changed) {
00346 int i = -1;
00347 if ((_pause_mode & PM_PAUSED_NORMAL) != PM_UNPAUSED) SetDParam(++i, STR_NETWORK_SERVER_MESSAGE_GAME_REASON_MANUAL);
00348 if ((_pause_mode & PM_PAUSED_JOIN) != PM_UNPAUSED) SetDParam(++i, STR_NETWORK_SERVER_MESSAGE_GAME_REASON_CONNECTING_CLIENTS);
00349 if ((_pause_mode & PM_PAUSED_ACTIVE_CLIENTS) != PM_UNPAUSED) SetDParam(++i, STR_NETWORK_SERVER_MESSAGE_GAME_REASON_NOT_ENOUGH_PLAYERS);
00350 str = STR_NETWORK_SERVER_MESSAGE_GAME_STILL_PAUSED_1 + i;
00351 } else {
00352 switch (changed_mode) {
00353 case PM_PAUSED_NORMAL: SetDParam(0, STR_NETWORK_SERVER_MESSAGE_GAME_REASON_MANUAL); break;
00354 case PM_PAUSED_JOIN: SetDParam(0, STR_NETWORK_SERVER_MESSAGE_GAME_REASON_CONNECTING_CLIENTS); break;
00355 case PM_PAUSED_ACTIVE_CLIENTS: SetDParam(0, STR_NETWORK_SERVER_MESSAGE_GAME_REASON_NOT_ENOUGH_PLAYERS); break;
00356 default: NOT_REACHED();
00357 }
00358 str = paused ? STR_NETWORK_SERVER_MESSAGE_GAME_PAUSED : STR_NETWORK_SERVER_MESSAGE_GAME_UNPAUSED;
00359 }
00360
00361 char buffer[DRAW_STRING_BUFFER];
00362 GetString(buffer, str, lastof(buffer));
00363 NetworkTextMessage(NETWORK_ACTION_SERVER_MESSAGE, CC_DEFAULT, false, NULL, buffer);
00364 break;
00365 }
00366
00367 default:
00368 return;
00369 }
00370 }
00371
00372
00381 static void CheckPauseHelper(bool pause, PauseMode pm)
00382 {
00383 if (pause == ((_pause_mode & pm) != PM_UNPAUSED)) return;
00384
00385 DoCommandP(0, pm, pause ? 1 : 0, CMD_PAUSE);
00386 }
00387
00393 static uint NetworkCountActiveClients()
00394 {
00395 const NetworkClientSocket *cs;
00396 uint count = 0;
00397
00398 FOR_ALL_CLIENT_SOCKETS(cs) {
00399 if (cs->status != NetworkClientSocket::STATUS_ACTIVE) continue;
00400 if (!Company::IsValidID(cs->GetInfo()->client_playas)) continue;
00401 count++;
00402 }
00403
00404 return count;
00405 }
00406
00410 static void CheckMinActiveClients()
00411 {
00412 if ((_pause_mode & PM_PAUSED_ERROR) != PM_UNPAUSED ||
00413 !_network_dedicated ||
00414 (_settings_client.network.min_active_clients == 0 && (_pause_mode & PM_PAUSED_ACTIVE_CLIENTS) == PM_UNPAUSED)) {
00415 return;
00416 }
00417 CheckPauseHelper(NetworkCountActiveClients() < _settings_client.network.min_active_clients, PM_PAUSED_ACTIVE_CLIENTS);
00418 }
00419
00424 static bool NetworkHasJoiningClient()
00425 {
00426 const NetworkClientSocket *cs;
00427 FOR_ALL_CLIENT_SOCKETS(cs) {
00428 if (cs->status >= NetworkClientSocket::STATUS_AUTHORIZED && cs->status < NetworkClientSocket::STATUS_ACTIVE) return true;
00429 }
00430
00431 return false;
00432 }
00433
00437 static void CheckPauseOnJoin()
00438 {
00439 if ((_pause_mode & PM_PAUSED_ERROR) != PM_UNPAUSED ||
00440 (!_settings_client.network.pause_on_join && (_pause_mode & PM_PAUSED_JOIN) == PM_UNPAUSED)) {
00441 return;
00442 }
00443 CheckPauseHelper(NetworkHasJoiningClient(), PM_PAUSED_JOIN);
00444 }
00445
00454 void ParseConnectionString(const char **company, const char **port, char *connection_string)
00455 {
00456 bool ipv6 = (strchr(connection_string, ':') != strrchr(connection_string, ':'));
00457 char *p;
00458 for (p = connection_string; *p != '\0'; p++) {
00459 switch (*p) {
00460 case '[':
00461 ipv6 = true;
00462 break;
00463
00464 case ']':
00465 ipv6 = false;
00466 break;
00467
00468 case '#':
00469 *company = p + 1;
00470 *p = '\0';
00471 break;
00472
00473 case ':':
00474 if (ipv6) break;
00475 *port = p + 1;
00476 *p = '\0';
00477 break;
00478 }
00479 }
00480 }
00481
00487 void ServerNetworkGameSocketHandler::AcceptConnection(SOCKET s, const NetworkAddress &address)
00488 {
00489
00490 _network_clients_connected++;
00491
00492 SetWindowDirty(WC_CLIENT_LIST, 0);
00493 ServerNetworkGameSocketHandler *cs = new ServerNetworkGameSocketHandler(s);
00494 cs->client_address = address;
00495 }
00496
00501 static void InitializeNetworkPools(bool close_admins = true)
00502 {
00503 PoolBase::Clean(PT_NCLIENT | (close_admins ? PT_NADMIN : PT_NONE));
00504 }
00505
00510 void NetworkClose(bool close_admins)
00511 {
00512 if (_network_server) {
00513 if (close_admins) {
00514 ServerNetworkAdminSocketHandler *as;
00515 FOR_ALL_ADMIN_SOCKETS(as) {
00516 as->CloseConnection(true);
00517 }
00518 }
00519
00520 NetworkClientSocket *cs;
00521 FOR_ALL_CLIENT_SOCKETS(cs) {
00522 cs->CloseConnection(NETWORK_RECV_STATUS_CONN_LOST);
00523 }
00524 ServerNetworkGameSocketHandler::CloseListeners();
00525 ServerNetworkAdminSocketHandler::CloseListeners();
00526 } else if (MyClient::my_client != NULL) {
00527 MyClient::SendQuit();
00528 MyClient::my_client->CloseConnection(NETWORK_RECV_STATUS_CONN_LOST);
00529 }
00530
00531 TCPConnecter::KillAll();
00532
00533 _networking = false;
00534 _network_server = false;
00535
00536 NetworkFreeLocalCommandQueue();
00537
00538 free(_network_company_states);
00539 _network_company_states = NULL;
00540
00541 InitializeNetworkPools(close_admins);
00542 }
00543
00544
00545 static void NetworkInitialize(bool close_admins = true)
00546 {
00547 InitializeNetworkPools(close_admins);
00548 NetworkUDPInitialize();
00549
00550 _sync_frame = 0;
00551 _network_first_time = true;
00552
00553 _network_reconnect = 0;
00554 }
00555
00557 class TCPQueryConnecter : TCPConnecter {
00558 public:
00559 TCPQueryConnecter(const NetworkAddress &address) : TCPConnecter(address) {}
00560
00561 virtual void OnFailure()
00562 {
00563 NetworkDisconnect();
00564 }
00565
00566 virtual void OnConnect(SOCKET s)
00567 {
00568 _networking = true;
00569 new ClientNetworkGameSocketHandler(s);
00570 MyClient::SendCompanyInformationQuery();
00571 }
00572 };
00573
00574
00575
00576
00577 void NetworkTCPQueryServer(NetworkAddress address)
00578 {
00579 if (!_network_available) return;
00580
00581 NetworkDisconnect();
00582 NetworkInitialize();
00583
00584 new TCPQueryConnecter(address);
00585 }
00586
00587
00588
00589
00590 void NetworkAddServer(const char *b)
00591 {
00592 if (*b != '\0') {
00593 const char *port = NULL;
00594 const char *company = NULL;
00595 char host[NETWORK_HOSTNAME_LENGTH];
00596 uint16 rport;
00597
00598 strecpy(host, b, lastof(host));
00599
00600 strecpy(_settings_client.network.connect_to_ip, b, lastof(_settings_client.network.connect_to_ip));
00601 rport = NETWORK_DEFAULT_PORT;
00602
00603 ParseConnectionString(&company, &port, host);
00604 if (port != NULL) rport = atoi(port);
00605
00606 NetworkUDPQueryServer(NetworkAddress(host, rport), true);
00607 }
00608 }
00609
00615 void GetBindAddresses(NetworkAddressList *addresses, uint16 port)
00616 {
00617 for (char **iter = _network_bind_list.Begin(); iter != _network_bind_list.End(); iter++) {
00618 *addresses->Append() = NetworkAddress(*iter, port);
00619 }
00620
00621
00622 if (addresses->Length() == 0) {
00623 *addresses->Append() = NetworkAddress("", port);
00624 }
00625 }
00626
00627
00628
00629
00630 void NetworkRebuildHostList()
00631 {
00632 _network_host_list.Clear();
00633
00634 for (NetworkGameList *item = _network_game_list; item != NULL; item = item->next) {
00635 if (item->manually) *_network_host_list.Append() = strdup(item->address.GetAddressAsString(false));
00636 }
00637 }
00638
00640 class TCPClientConnecter : TCPConnecter {
00641 public:
00642 TCPClientConnecter(const NetworkAddress &address) : TCPConnecter(address) {}
00643
00644 virtual void OnFailure()
00645 {
00646 NetworkError(STR_NETWORK_ERROR_NOCONNECTION);
00647 }
00648
00649 virtual void OnConnect(SOCKET s)
00650 {
00651 _networking = true;
00652 new ClientNetworkGameSocketHandler(s);
00653 IConsoleCmdExec("exec scripts/on_client.scr 0");
00654 NetworkClient_Connected();
00655 }
00656 };
00657
00658
00659
00660 void NetworkClientConnectGame(NetworkAddress address, CompanyID join_as, const char *join_server_password, const char *join_company_password)
00661 {
00662 if (!_network_available) return;
00663
00664 if (address.GetPort() == 0) return;
00665
00666 strecpy(_settings_client.network.last_host, address.GetHostname(), lastof(_settings_client.network.last_host));
00667 _settings_client.network.last_port = address.GetPort();
00668 _network_join_as = join_as;
00669 _network_join_server_password = join_server_password;
00670 _network_join_company_password = join_company_password;
00671
00672 NetworkDisconnect();
00673 NetworkInitialize();
00674
00675 _network_join_status = NETWORK_JOIN_STATUS_CONNECTING;
00676 ShowJoinStatusWindow();
00677
00678 new TCPClientConnecter(address);
00679 }
00680
00681 static void NetworkInitGameInfo()
00682 {
00683 if (StrEmpty(_settings_client.network.server_name)) {
00684 snprintf(_settings_client.network.server_name, sizeof(_settings_client.network.server_name), "Unnamed Server");
00685 }
00686
00687
00688 _network_game_info.clients_on = _network_dedicated ? 0 : 1;
00689
00690
00691 assert(NetworkClientInfo::CanAllocateItem());
00692 NetworkClientInfo *ci = new NetworkClientInfo(CLIENT_ID_SERVER);
00693 ci->client_playas = _network_dedicated ? COMPANY_SPECTATOR : _local_company;
00694
00695 strecpy(ci->client_name, _settings_client.network.client_name, lastof(ci->client_name));
00696 }
00697
00698 bool NetworkServerStart()
00699 {
00700 if (!_network_available) return false;
00701
00702
00703 IConsoleCmdExec("exec scripts/pre_server.scr 0");
00704 if (_network_dedicated) IConsoleCmdExec("exec scripts/pre_dedicated.scr 0");
00705
00706 NetworkDisconnect(false, false);
00707 NetworkInitialize(false);
00708 if (!ServerNetworkGameSocketHandler::Listen(_settings_client.network.server_port)) return false;
00709
00710
00711 if (!StrEmpty(_settings_client.network.admin_password) && !ServerNetworkAdminSocketHandler::Listen(_settings_client.network.server_admin_port)) return false;
00712
00713
00714 _network_udp_server = _udp_server_socket->Listen();
00715
00716 _network_company_states = CallocT<NetworkCompanyState>(MAX_COMPANIES);
00717 _network_server = true;
00718 _networking = true;
00719 _frame_counter = 0;
00720 _frame_counter_server = 0;
00721 _frame_counter_max = 0;
00722 _last_sync_frame = 0;
00723 _network_own_client_id = CLIENT_ID_SERVER;
00724
00725 _network_clients_connected = 0;
00726 _network_company_passworded = 0;
00727
00728 NetworkInitGameInfo();
00729
00730
00731 IConsoleCmdExec("exec scripts/on_server.scr 0");
00732
00733 if (_network_dedicated) IConsoleCmdExec("exec scripts/on_dedicated.scr 0");
00734
00735
00736 _network_last_advertise_frame = 0;
00737 _network_need_advertise = true;
00738 NetworkUDPAdvertise();
00739
00740
00741 if (_network_dedicated) ServerNetworkAdminSocketHandler::WelcomeAll();
00742
00743 return true;
00744 }
00745
00746
00747
00748 void NetworkReboot()
00749 {
00750 if (_network_server) {
00751 NetworkClientSocket *cs;
00752 FOR_ALL_CLIENT_SOCKETS(cs) {
00753 cs->SendNewGame();
00754 cs->SendPackets();
00755 }
00756
00757 ServerNetworkAdminSocketHandler *as;
00758 FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
00759 as->SendNewGame();
00760 as->SendPackets();
00761 }
00762 }
00763
00764
00765
00766 NetworkClose(!_network_dedicated);
00767 }
00768
00774 void NetworkDisconnect(bool blocking, bool close_admins)
00775 {
00776 if (_network_server) {
00777 NetworkClientSocket *cs;
00778 FOR_ALL_CLIENT_SOCKETS(cs) {
00779 cs->SendShutdown();
00780 cs->SendPackets();
00781 }
00782
00783 if (close_admins) {
00784 ServerNetworkAdminSocketHandler *as;
00785 FOR_ALL_ACTIVE_ADMIN_SOCKETS(as) {
00786 as->SendShutdown();
00787 as->SendPackets();
00788 }
00789 }
00790 }
00791
00792 if (_settings_client.network.server_advertise) NetworkUDPRemoveAdvertise(blocking);
00793
00794 DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00795
00796 NetworkClose(close_admins);
00797
00798
00799 NetworkUDPInitialize();
00800 }
00801
00806 static bool NetworkReceive()
00807 {
00808 if (_network_server) {
00809 ServerNetworkAdminSocketHandler::Receive();
00810 return ServerNetworkGameSocketHandler::Receive();
00811 } else {
00812 return ClientNetworkGameSocketHandler::Receive();
00813 }
00814 }
00815
00816
00817 static void NetworkSend()
00818 {
00819 if (_network_server) {
00820 ServerNetworkAdminSocketHandler::Send();
00821 ServerNetworkGameSocketHandler::Send();
00822 } else {
00823 ClientNetworkGameSocketHandler::Send();
00824 }
00825 }
00826
00827
00828 void NetworkUDPGameLoop()
00829 {
00830 _network_content_client.SendReceive();
00831 TCPConnecter::CheckCallbacks();
00832 NetworkHTTPSocketHandler::HTTPReceive();
00833
00834 if (_network_udp_server) {
00835 _udp_server_socket->ReceivePackets();
00836 _udp_master_socket->ReceivePackets();
00837 } else {
00838 _udp_client_socket->ReceivePackets();
00839 if (_network_udp_broadcast > 0) _network_udp_broadcast--;
00840 }
00841 }
00842
00843
00844
00845 void NetworkGameLoop()
00846 {
00847 if (!_networking) return;
00848
00849 if (!NetworkReceive()) return;
00850
00851 if (_network_server) {
00852
00853 if (_date_fract == 0) {
00854
00855 static Date last_log;
00856 if (last_log != _date) {
00857 DEBUG(desync, 1, "sync: %08x; %02x; %08x; %08x", _date, _date_fract, _random.state[0], _random.state[1]);
00858 last_log = _date;
00859 }
00860 }
00861
00862 #ifdef DEBUG_DUMP_COMMANDS
00863
00864 static FILE *f = FioFOpenFile("commands.log", "rb", SAVE_DIR);
00865 static Date next_date = 0;
00866 static uint32 next_date_fract;
00867 static CommandPacket *cp = NULL;
00868 static bool check_sync_state = false;
00869 static uint32 sync_state[2];
00870 if (f == NULL && next_date == 0) {
00871 DEBUG(net, 0, "Cannot open commands.log");
00872 next_date = 1;
00873 }
00874
00875 while (f != NULL && !feof(f)) {
00876 if (_date == next_date && _date_fract == next_date_fract) {
00877 if (cp != NULL) {
00878 NetworkSendCommand(cp->tile, cp->p1, cp->p2, cp->cmd & ~CMD_FLAGS_MASK, NULL, cp->text, cp->company);
00879 DEBUG(net, 0, "injecting: %08x; %02x; %02x; %06x; %08x; %08x; %08x; \"%s\" (%s)", _date, _date_fract, (int)_current_company, cp->tile, cp->p1, cp->p2, cp->cmd, cp->text, GetCommandName(cp->cmd));
00880 free(cp);
00881 cp = NULL;
00882 }
00883 if (check_sync_state) {
00884 if (sync_state[0] == _random.state[0] && sync_state[1] == _random.state[1]) {
00885 DEBUG(net, 0, "sync check: %08x; %02x; match", _date, _date_fract);
00886 } else {
00887 DEBUG(net, 0, "sync check: %08x; %02x; mismatch expected {%08x, %08x}, got {%08x, %08x}",
00888 _date, _date_fract, sync_state[0], sync_state[1], _random.state[0], _random.state[1]);
00889 NOT_REACHED();
00890 }
00891 check_sync_state = false;
00892 }
00893 }
00894
00895 if (cp != NULL || check_sync_state) break;
00896
00897 char buff[4096];
00898 if (fgets(buff, lengthof(buff), f) == NULL) break;
00899
00900 char *p = buff;
00901
00902 if (*p == '[') {
00903 p = strchr(p, ']');
00904 if (p == NULL) break;
00905 p += 2;
00906 }
00907
00908 if (strncmp(p, "cmd: ", 5) == 0) {
00909 cp = CallocT<CommandPacket>(1);
00910 int company;
00911 int ret = sscanf(p + 5, "%x; %x; %x; %x; %x; %x; %x; \"%[^\"]\"", &next_date, &next_date_fract, &company, &cp->tile, &cp->p1, &cp->p2, &cp->cmd, cp->text);
00912
00913
00914
00915 assert(ret == 8 || ret == 7);
00916 cp->company = (CompanyID)company;
00917 } else if (strncmp(p, "join: ", 6) == 0) {
00918
00919 int ret = sscanf(p + 6, "%x; %x", &next_date, &next_date_fract);
00920 assert(ret == 2);
00921 DEBUG(net, 0, "injecting pause for join at %08x:%02x; please join when paused", next_date, next_date_fract);
00922 cp = CallocT<CommandPacket>(1);
00923 cp->company = COMPANY_SPECTATOR;
00924 cp->cmd = CMD_PAUSE;
00925 cp->p1 = PM_PAUSED_NORMAL;
00926 cp->p2 = 1;
00927 _ddc_fastforward = false;
00928 } else if (strncmp(p, "sync: ", 6) == 0) {
00929 int ret = sscanf(p + 6, "%x; %x; %x; %x", &next_date, &next_date_fract, &sync_state[0], &sync_state[1]);
00930 assert(ret == 4);
00931 check_sync_state = true;
00932 } else if (strncmp(p, "msg: ", 5) == 0 || strncmp(p, "client: ", 8) == 0 ||
00933 strncmp(p, "load: ", 6) == 0 || strncmp(p, "save: ", 6) == 0) {
00934
00935 } else {
00936
00937 DEBUG(net, 0, "trying to parse: %s", p);
00938 NOT_REACHED();
00939 }
00940 }
00941 if (f != NULL && feof(f)) {
00942 DEBUG(net, 0, "End of commands.log");
00943 fclose(f);
00944 f = NULL;
00945 }
00946 #endif
00947 if (_frame_counter >= _frame_counter_max) {
00948
00949
00950
00951 CheckPauseOnJoin();
00952 CheckMinActiveClients();
00953 NetworkDistributeCommands();
00954 }
00955
00956 bool send_frame = false;
00957
00958
00959 _frame_counter++;
00960
00961 if (_frame_counter > _frame_counter_max) {
00962 _frame_counter_max = _frame_counter + _settings_client.network.frame_freq;
00963 send_frame = true;
00964 }
00965
00966 NetworkExecuteLocalCommandQueue();
00967
00968
00969 StateGameLoop();
00970
00971 _sync_seed_1 = _random.state[0];
00972 #ifdef NETWORK_SEND_DOUBLE_SEED
00973 _sync_seed_2 = _random.state[1];
00974 #endif
00975
00976 NetworkServer_Tick(send_frame);
00977 } else {
00978
00979
00980
00981 if (_frame_counter_server > _frame_counter) {
00982
00983 while (_frame_counter_server > _frame_counter) {
00984 if (!ClientNetworkGameSocketHandler::GameLoop()) return;
00985 }
00986 } else {
00987
00988 if (_frame_counter_max > _frame_counter) {
00989
00990 if (!ClientNetworkGameSocketHandler::GameLoop()) return;
00991 }
00992 }
00993 }
00994
00995 NetworkSend();
00996 }
00997
00998 static void NetworkGenerateServerId()
00999 {
01000 Md5 checksum;
01001 uint8 digest[16];
01002 char hex_output[16 * 2 + 1];
01003 char coding_string[NETWORK_NAME_LENGTH];
01004 int di;
01005
01006 snprintf(coding_string, sizeof(coding_string), "%d%s", (uint)Random(), "OpenTTD Server ID");
01007
01008
01009 checksum.Append((const uint8*)coding_string, strlen(coding_string));
01010 checksum.Finish(digest);
01011
01012 for (di = 0; di < 16; ++di) {
01013 sprintf(hex_output + di * 2, "%02x", digest[di]);
01014 }
01015
01016
01017 snprintf(_settings_client.network.network_id, sizeof(_settings_client.network.network_id), "%s", hex_output);
01018 }
01019
01020 void NetworkStartDebugLog(NetworkAddress address)
01021 {
01022 extern SOCKET _debug_socket;
01023
01024 DEBUG(net, 0, "Redirecting DEBUG() to %s:%d", address.GetHostname(), address.GetPort());
01025
01026 SOCKET s = address.Connect();
01027 if (s == INVALID_SOCKET) {
01028 DEBUG(net, 0, "Failed to open socket for redirection DEBUG()");
01029 return;
01030 }
01031
01032 _debug_socket = s;
01033
01034 DEBUG(net, 0, "DEBUG() is now redirected");
01035 }
01036
01038 void NetworkStartUp()
01039 {
01040 DEBUG(net, 3, "[core] starting network...");
01041
01042
01043 _network_available = NetworkCoreInitialize();
01044 _network_dedicated = false;
01045 _network_last_advertise_frame = 0;
01046 _network_need_advertise = true;
01047 _network_advertise_retries = 0;
01048
01049
01050 if (StrEmpty(_settings_client.network.network_id)) NetworkGenerateServerId();
01051
01052 memset(&_network_game_info, 0, sizeof(_network_game_info));
01053
01054 NetworkInitialize();
01055 DEBUG(net, 3, "[core] network online, multiplayer available");
01056 NetworkFindBroadcastIPs(&_broadcast_list);
01057 }
01058
01060 void NetworkShutDown()
01061 {
01062 NetworkDisconnect(true);
01063 NetworkUDPClose();
01064
01065 DEBUG(net, 3, "[core] shutting down network");
01066
01067 _network_available = false;
01068
01069 NetworkCoreShutdown();
01070 }
01071
01076 bool IsNetworkCompatibleVersion(const char *other)
01077 {
01078 return strncmp(_openttd_revision, other, NETWORK_REVISION_LENGTH - 1) == 0;
01079 }
01080
01081 #endif