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97 lines
7.2 KiB
C
97 lines
7.2 KiB
C
/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/**
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* @file config.h Configuration options of the network stuff. It is used even when compiling without network support.
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*/
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#ifndef NETWORK_CORE_CONFIG_H
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#define NETWORK_CORE_CONFIG_H
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/** DNS hostname of the masterserver */
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static const char * const NETWORK_MASTER_SERVER_HOST = "master.openttd.org";
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/** DNS hostname of the content server */
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static const char * const NETWORK_CONTENT_SERVER_HOST = "content.openttd.org";
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/** DNS hostname of the HTTP-content mirror server */
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static const char * const NETWORK_CONTENT_MIRROR_HOST = "binaries.openttd.org";
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/** URL of the HTTP mirror system */
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static const char * const NETWORK_CONTENT_MIRROR_URL = "/bananas";
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/** Message sent to the masterserver to 'identify' this client as OpenTTD */
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static const char * const NETWORK_MASTER_SERVER_WELCOME_MESSAGE = "OpenTTDRegister";
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static const uint16 NETWORK_MASTER_SERVER_PORT = 3978; ///< The default port of the master server (UDP)
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static const uint16 NETWORK_CONTENT_SERVER_PORT = 3978; ///< The default port of the content server (TCP)
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static const uint16 NETWORK_CONTENT_MIRROR_PORT = 80; ///< The default port of the content mirror (TCP)
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static const uint16 NETWORK_DEFAULT_PORT = 3979; ///< The default port of the game server (TCP & UDP)
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static const uint16 NETWORK_ADMIN_PORT = 3977; ///< The default port for admin network
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static const uint16 NETWORK_DEFAULT_DEBUGLOG_PORT = 3982; ///< The default port debug-log is sent to (TCP)
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static const uint16 UDP_MTU = 1460; ///< Number of bytes we can pack in a single UDP packet
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static const uint16 UDP_MTU_SHORT = 1400; ///< Number of bytes we can pack in a single UDP packet (conservative)
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/*
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* Technically a TCP packet could become 64kiB, however the high bit is kept so it becomes possible in the future
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* to go to (significantly) larger packets if needed. This would entail a strategy such as employed for UTF-8.
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*
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* Packets up to 32 KiB have the high bit not set:
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* 00000000 00000000 0bbbbbbb aaaaaaaa -> aaaaaaaa 0bbbbbbb
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* Send_uint16(GB(size, 0, 15)
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*
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* Packets up to 1 GiB, first uint16 has high bit set so it knows to read a
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* next uint16 for the remaining bits of the size.
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* 00dddddd cccccccc bbbbbbbb aaaaaaaa -> cccccccc 10dddddd aaaaaaaa bbbbbbbb
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* Send_uint16(GB(size, 16, 14) | 0b10 << 14)
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* Send_uint16(GB(size, 0, 16))
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*/
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static const uint16 TCP_MTU = 32767; ///< Number of bytes we can pack in a single TCP packet
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static const uint16 COMPAT_MTU = 1460; ///< Number of bytes we can pack in a single packet for backward compatibility
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static const byte NETWORK_GAME_ADMIN_VERSION = 1; ///< What version of the admin network do we use?
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static const byte NETWORK_GAME_INFO_VERSION = 4; ///< What version of game-info do we use?
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static const byte NETWORK_COMPANY_INFO_VERSION = 6; ///< What version of company info is this?
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static const byte NETWORK_MASTER_SERVER_VERSION = 2; ///< What version of master-server-protocol do we use?
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static const uint NETWORK_NAME_LENGTH = 80; ///< The maximum length of the server name and map name, in bytes including '\0'
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static const uint NETWORK_COMPANY_NAME_LENGTH = 128; ///< The maximum length of the company name, in bytes including '\0'
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static const uint NETWORK_HOSTNAME_LENGTH = 80; ///< The maximum length of the host name, in bytes including '\0'
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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)
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static const uint NETWORK_SERVER_ID_LENGTH = 33; ///< The maximum length of the network id of the servers, in bytes including '\0'
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static const uint NETWORK_REVISION_LENGTH = 33; ///< The maximum length of the revision, in bytes including '\0'
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static const uint NETWORK_LONG_REVISION_LENGTH = 64; ///< The maximum length of the revision, in bytes including '\0'
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static const uint NETWORK_PASSWORD_LENGTH = 33; ///< The maximum length of the password, in bytes including '\0' (must be >= NETWORK_SERVER_ID_LENGTH)
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static const uint NETWORK_CLIENTS_LENGTH = 200; ///< The maximum length for the list of clients that controls a company, in bytes including '\0'
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static const uint NETWORK_CLIENT_NAME_LENGTH = 25; ///< The maximum length of a client's name, in bytes including '\0'
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static const uint NETWORK_RCONCOMMAND_LENGTH = 500; ///< The maximum length of a rconsole command, in bytes including '\0'
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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)
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static const uint NETWORK_CHAT_LENGTH = 900; ///< The maximum length of a chat message, in bytes including '\0'
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static const uint NETWORK_CONTENT_FILENAME_LENGTH = 48; ///< The maximum length of a content's filename, in bytes including '\0'.
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static const uint NETWORK_CONTENT_NAME_LENGTH = 64; ///< The maximum length of a content's name, in bytes including '\0'.
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static const uint NETWORK_CONTENT_VERSION_LENGTH = 16; ///< The maximum length of a content's version, in bytes including '\0'.
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static const uint NETWORK_CONTENT_URL_LENGTH = 96; ///< The maximum length of a content's url, in bytes including '\0'.
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static const uint NETWORK_CONTENT_DESC_LENGTH = 512; ///< The maximum length of a content's description, in bytes including '\0'.
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static const uint NETWORK_CONTENT_TAG_LENGTH = 32; ///< The maximum length of a content's tag, in bytes including '\0'.
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static const uint NETWORK_GRF_NAME_LENGTH = 80; ///< Maximum length of the name of a GRF
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/**
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* Maximum number of GRFs that can be sent.
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* This limit is reached when PACKET_UDP_SERVER_RESPONSE reaches the maximum size of UDP_MTU bytes.
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*/
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static const uint NETWORK_MAX_GRF_COUNT = 62;
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static const uint NETWORK_MAX_GRF_COUNT_SHORT = 59;
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/**
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* The number of landscapes in OpenTTD.
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* This number must be equal to NUM_LANDSCAPE, but as this number is used
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* within the network code and that the network code is shared with the
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* masterserver/updater, it has to be declared in here too. In network.cpp
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* there is a compile assertion to check that this NUM_LANDSCAPE is equal
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* to NETWORK_NUM_LANDSCAPES.
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*/
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static const uint NETWORK_NUM_LANDSCAPES = 4;
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#endif /* NETWORK_CORE_CONFIG_H */
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