/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file config.h Configuration options of the network stuff. It is used even when compiling without network support.
*/
#ifndef NETWORK_CORE_CONFIG_H
#define NETWORK_CORE_CONFIG_H
const char *NetworkCoordinatorConnectionString();
const char *NetworkContentServerConnectionString();
const char *NetworkContentMirrorConnectionString();
/** URL of the HTTP mirror system */
static const char * const NETWORK_CONTENT_MIRROR_URL = "/bananas";
static const uint16 NETWORK_COORDINATOR_SERVER_PORT = 3976; ///< The default port of the Game Coordinator server (TCP)
static const uint16 NETWORK_CONTENT_SERVER_PORT = 3978; ///< The default port of the content server (TCP)
static const uint16 NETWORK_CONTENT_MIRROR_PORT = 80; ///< The default port of the content mirror (TCP)
static const uint16 NETWORK_DEFAULT_PORT = 3979; ///< The default port of the game server (TCP & UDP)
static const uint16 NETWORK_ADMIN_PORT = 3977; ///< The default port for admin network
static const uint16 NETWORK_DEFAULT_DEBUGLOG_PORT = 3982; ///< The default port debug-log is sent to (TCP)
static const uint16 UDP_MTU = 1460; ///< Number of bytes we can pack in a single UDP packet
/*
* Technically a TCP packet could become 64kiB, however the high bit is kept so it becomes possible in the future
* to go to (significantly) larger packets if needed. This would entail a strategy such as employed for UTF-8.
*
* Packets up to 32 KiB have the high bit not set:
* 00000000 00000000 0bbbbbbb aaaaaaaa -> aaaaaaaa 0bbbbbbb
* Send_uint16(GB(size, 0, 15)
*
* Packets up to 1 GiB, first uint16 has high bit set so it knows to read a
* next uint16 for the remaining bits of the size.
* 00dddddd cccccccc bbbbbbbb aaaaaaaa -> cccccccc 10dddddd aaaaaaaa bbbbbbbb
* Send_uint16(GB(size, 16, 14) | 0b10 << 14)
* Send_uint16(GB(size, 0, 16))
*/
static const uint16 TCP_MTU = 32767; ///< Number of bytes we can pack in a single TCP packet
static const uint16 COMPAT_MTU = 1460; ///< Number of bytes we can pack in a single packet for backward compatibility
static const byte NETWORK_GAME_ADMIN_VERSION = 1; ///< What version of the admin network do we use?
static const byte NETWORK_GAME_INFO_VERSION = 4; ///< What version of game-info do we use?
static const byte NETWORK_COMPANY_INFO_VERSION = 6; ///< What version of company info is this?
static const byte NETWORK_COORDINATOR_VERSION = 1; ///< What version of game-coordinator-protocol do we use?
static const uint NETWORK_NAME_LENGTH = 80; ///< The maximum length of the server name and map name, in bytes including '\0'
static const uint NETWORK_COMPANY_NAME_LENGTH = 128; ///< The maximum length of the company name, in bytes including '\0'
static const uint NETWORK_HOSTNAME_LENGTH = 80; ///< The maximum length of the host name, in bytes including '\0'
static const uint NETWORK_HOSTNAME_PORT_LENGTH = 80 + 6; ///< The maximum length of the host name + port, in bytes including '\0'. The extra six is ":" + port number (with a max of 65536)
static const uint NETWORK_SERVER_ID_LENGTH = 33; ///< The maximum length of the network id of the servers, in bytes including '\0'
static const uint NETWORK_REVISION_LENGTH = 33; ///< The maximum length of the revision, in bytes including '\0'
static const uint NETWORK_PASSWORD_LENGTH = 33; ///< The maximum length of the password, in bytes including '\0' (must be >= NETWORK_SERVER_ID_LENGTH)
static const uint NETWORK_CLIENTS_LENGTH = 200; ///< The maximum length for the list of clients that controls a company, in bytes including '\0'
static const uint NETWORK_CLIENT_NAME_LENGTH = 25; ///< The maximum length of a client's name, in bytes including '\0'
static const uint NETWORK_RCONCOMMAND_LENGTH = 500; ///< The maximum length of a rconsole command, in bytes including '\0'
static const uint NETWORK_GAMESCRIPT_JSON_LENGTH = COMPAT_MTU - 3; ///< The maximum length of a gamescript json string, in bytes including '\0'. Must not be longer than COMPAT_MTU including header (3 bytes)
static const uint NETWORK_CHAT_LENGTH = 900; ///< The maximum length of a chat message, in bytes including '\0'
static const uint NETWORK_CONTENT_FILENAME_LENGTH = 48; ///< The maximum length of a content's filename, in bytes including '\0'.
static const uint NETWORK_CONTENT_NAME_LENGTH = 32; ///< The maximum length of a content's name, in bytes including '\0'.
static const uint NETWORK_CONTENT_VERSION_LENGTH = 16; ///< The maximum length of a content's version, in bytes including '\0'.
static const uint NETWORK_CONTENT_URL_LENGTH = 96; ///< The maximum length of a content's url, in bytes including '\0'.
static const uint NETWORK_CONTENT_DESC_LENGTH = 512; ///< The maximum length of a content's description, in bytes including '\0'.
static const uint NETWORK_CONTENT_TAG_LENGTH = 32; ///< The maximum length of a content's tag, in bytes including '\0'.
static const uint NETWORK_ERROR_DETAIL_LENGTH = 100; ///< The maximum length of the error detail, in bytes including '\0'
static const uint NETWORK_GRF_NAME_LENGTH = 80; ///< Maximum length of the name of a GRF
/**
* Maximum number of GRFs that can be sent.
*
* This limit exists to avoid that the SERVER_INFO packet exceeding the
* maximum MTU. At the time of writing this limit is 32767 (TCP_MTU).
*
* In the SERVER_INFO packet is the NetworkGameInfo struct, which is
* 142 bytes + 100 per NewGRF (under the assumption strings are used to
* their max). This brings us to roughly 326 possible NewGRFs. Round it
* down so people don't freak out because they see a weird value, and you
* get the limit: 255.
*
* PS: in case you ever want to raise this number, please be mindful that
* "amount of NewGRFs" in NetworkGameInfo is currently an uint8.
*/
static const uint NETWORK_MAX_GRF_COUNT = 255;
/**
* The number of landscapes in OpenTTD.
* This number must be equal to NUM_LANDSCAPE, but as this number is used
* within the network code and that the network code is shared with the
* masterserver/updater, it has to be declared in here too. In network.cpp
* there is a compile assertion to check that this NUM_LANDSCAPE is equal
* to NETWORK_NUM_LANDSCAPES.
*/
static const uint NETWORK_NUM_LANDSCAPES = 4;
#endif /* NETWORK_CORE_CONFIG_H */