mirror of
https://git.code.sf.net/p/quake/quakeforge-old
synced 2024-11-14 16:31:17 +00:00
333 lines
9.4 KiB
C
333 lines
9.4 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// net.h -- quake's interface to the networking layer
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struct qsockaddr
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{
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short sa_family;
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unsigned char sa_data[14];
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};
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#define NET_NAMELEN 64
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#define NET_MAXMESSAGE 8192
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#define NET_HEADERSIZE (2 * sizeof(unsigned int))
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#define NET_DATAGRAMSIZE (MAX_DATAGRAM + NET_HEADERSIZE)
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// NetHeader flags
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#define NETFLAG_LENGTH_MASK 0x0000ffff
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#define NETFLAG_DATA 0x00010000
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#define NETFLAG_ACK 0x00020000
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#define NETFLAG_NAK 0x00040000
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#define NETFLAG_EOM 0x00080000
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#define NETFLAG_UNRELIABLE 0x00100000
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#define NETFLAG_CTL 0x80000000
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#define NET_PROTOCOL_VERSION 3
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// This is the network info/connection protocol. It is used to find Quake
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// servers, get info about them, and connect to them. Once connected, the
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// Quake game protocol (documented elsewhere) is used.
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//
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//
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// General notes:
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// game_name is currently always "QUAKE", but is there so this same protocol
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// can be used for future games as well; can you say Quake2?
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//
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// CCREQ_CONNECT
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// string game_name "QUAKE"
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// byte net_protocol_version NET_PROTOCOL_VERSION
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//
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// CCREQ_SERVER_INFO
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// string game_name "QUAKE"
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// byte net_protocol_version NET_PROTOCOL_VERSION
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//
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// CCREQ_PLAYER_INFO
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// byte player_number
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//
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// CCREQ_RULE_INFO
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// string rule
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//
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//
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//
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// CCREP_ACCEPT
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// long port
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//
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// CCREP_REJECT
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// string reason
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//
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// CCREP_SERVER_INFO
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// string server_address
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// string host_name
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// string level_name
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// byte current_players
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// byte max_players
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// byte protocol_version NET_PROTOCOL_VERSION
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//
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// CCREP_PLAYER_INFO
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// byte player_number
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// string name
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// long colors
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// long frags
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// long connect_time
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// string address
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//
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// CCREP_RULE_INFO
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// string rule
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// string value
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// note:
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// There are two address forms used above. The short form is just a
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// port number. The address that goes along with the port is defined as
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// "whatever address you receive this reponse from". This lets us use
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// the host OS to solve the problem of multiple host addresses (possibly
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// with no routing between them); the host will use the right address
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// when we reply to the inbound connection request. The long from is
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// a full address and port in a string. It is used for returning the
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// address of a server that is not running locally.
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#define CCREQ_CONNECT 0x01
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#define CCREQ_SERVER_INFO 0x02
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#define CCREQ_PLAYER_INFO 0x03
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#define CCREQ_RULE_INFO 0x04
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#define CCREP_ACCEPT 0x81
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#define CCREP_REJECT 0x82
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#define CCREP_SERVER_INFO 0x83
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#define CCREP_PLAYER_INFO 0x84
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#define CCREP_RULE_INFO 0x85
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typedef struct qsocket_s
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{
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struct qsocket_s *next;
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double connecttime;
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double lastMessageTime;
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double lastSendTime;
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qboolean disconnected;
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qboolean canSend;
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qboolean sendNext;
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int driver;
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int landriver;
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int socket;
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void *driverdata;
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unsigned int ackSequence;
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unsigned int sendSequence;
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unsigned int unreliableSendSequence;
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int sendMessageLength;
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byte sendMessage [NET_MAXMESSAGE];
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unsigned int receiveSequence;
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unsigned int unreliableReceiveSequence;
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int receiveMessageLength;
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byte receiveMessage [NET_MAXMESSAGE];
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struct qsockaddr addr;
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char address[NET_NAMELEN];
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} qsocket_t;
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extern qsocket_t *net_activeSockets;
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extern qsocket_t *net_freeSockets;
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extern int net_numsockets;
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typedef struct
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{
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char *name;
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qboolean initialized;
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int controlSock;
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int (*Init) (void);
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void (*Shutdown) (void);
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void (*Listen) (qboolean state);
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int (*OpenSocket) (int port);
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int (*CloseSocket) (int socket);
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int (*Connect) (int socket, struct qsockaddr *addr);
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int (*CheckNewConnections) (void);
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int (*Read) (int socket, byte *buf, int len, struct qsockaddr *addr);
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int (*Write) (int socket, byte *buf, int len, struct qsockaddr *addr);
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int (*Broadcast) (int socket, byte *buf, int len);
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char * (*AddrToString) (struct qsockaddr *addr);
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int (*StringToAddr) (char *string, struct qsockaddr *addr);
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int (*GetSocketAddr) (int socket, struct qsockaddr *addr);
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int (*GetNameFromAddr) (struct qsockaddr *addr, char *name);
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int (*GetAddrFromName) (char *name, struct qsockaddr *addr);
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int (*AddrCompare) (struct qsockaddr *addr1, struct qsockaddr *addr2);
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int (*GetSocketPort) (struct qsockaddr *addr);
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int (*SetSocketPort) (struct qsockaddr *addr, int port);
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} net_landriver_t;
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#define MAX_NET_DRIVERS 8
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extern int net_numlandrivers;
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extern net_landriver_t net_landrivers[MAX_NET_DRIVERS];
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typedef struct
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{
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char *name;
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qboolean initialized;
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int (*Init) (void);
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void (*Listen) (qboolean state);
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void (*SearchForHosts) (qboolean xmit);
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qsocket_t *(*Connect) (char *host);
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qsocket_t *(*CheckNewConnections) (void);
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int (*QGetMessage) (qsocket_t *sock);
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int (*QSendMessage) (qsocket_t *sock, sizebuf_t *data);
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int (*SendUnreliableMessage) (qsocket_t *sock, sizebuf_t *data);
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qboolean (*CanSendMessage) (qsocket_t *sock);
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qboolean (*CanSendUnreliableMessage) (qsocket_t *sock);
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void (*Close) (qsocket_t *sock);
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void (*Shutdown) (void);
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int controlSock;
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} net_driver_t;
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extern int net_numdrivers;
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extern net_driver_t net_drivers[MAX_NET_DRIVERS];
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extern int DEFAULTnet_hostport;
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extern int net_hostport;
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extern int net_driverlevel;
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extern cvar_t hostname;
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extern char playername[];
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extern int playercolor;
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extern int messagesSent;
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extern int messagesReceived;
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extern int unreliableMessagesSent;
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extern int unreliableMessagesReceived;
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qsocket_t *NET_NewQSocket (void);
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void NET_FreeQSocket(qsocket_t *);
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double SetNetTime(void);
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#define HOSTCACHESIZE 8
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typedef struct
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{
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char name[16];
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char map[16];
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char cname[32];
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int users;
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int maxusers;
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int driver;
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int ldriver;
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struct qsockaddr addr;
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} hostcache_t;
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extern int hostCacheCount;
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extern hostcache_t hostcache[HOSTCACHESIZE];
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#if !defined(_WIN32 ) && !defined (__linux__) && !defined (__sun__)
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#ifndef htonl
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extern unsigned long htonl (unsigned long hostlong);
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#endif
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#ifndef htons
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extern unsigned short htons (unsigned short hostshort);
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#endif
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#ifndef ntohl
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extern unsigned long ntohl (unsigned long netlong);
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#endif
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#ifndef ntohs
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extern unsigned short ntohs (unsigned short netshort);
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#endif
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#endif
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//============================================================================
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//
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// public network functions
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//
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//============================================================================
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extern double net_time;
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extern sizebuf_t net_message;
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extern int net_activeconnections;
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void NET_Init (void);
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void NET_Shutdown (void);
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struct qsocket_s *NET_CheckNewConnections (void);
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// returns a new connection number if there is one pending, else -1
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struct qsocket_s *NET_Connect (char *host);
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// called by client to connect to a host. Returns -1 if not able to
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qboolean NET_CanSendMessage (qsocket_t *sock);
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// Returns true or false if the given qsocket can currently accept a
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// message to be transmitted.
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int NET_GetMessage (struct qsocket_s *sock);
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// returns data in net_message sizebuf
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// returns 0 if no data is waiting
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// returns 1 if a message was received
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// returns 2 if an unreliable message was received
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// returns -1 if the connection died
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int NET_SendMessage (struct qsocket_s *sock, sizebuf_t *data);
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int NET_SendUnreliableMessage (struct qsocket_s *sock, sizebuf_t *data);
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// returns 0 if the message connot be delivered reliably, but the connection
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// is still considered valid
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// returns 1 if the message was sent properly
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// returns -1 if the connection died
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int NET_SendToAll(sizebuf_t *data, int blocktime);
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// This is a reliable *blocking* send to all attached clients.
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void NET_Close (struct qsocket_s *sock);
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// if a dead connection is returned by a get or send function, this function
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// should be called when it is convenient
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// Server calls when a client is kicked off for a game related misbehavior
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// like an illegal protocal conversation. Client calls when disconnecting
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// from a server.
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// A netcon_t number will not be reused until this function is called for it
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void NET_Poll(void);
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typedef struct _PollProcedure
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{
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struct _PollProcedure *next;
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double nextTime;
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void (*procedure)();
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void *arg;
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} PollProcedure;
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void SchedulePollProcedure(PollProcedure *pp, double timeOffset);
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extern qboolean serialAvailable;
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extern qboolean ipxAvailable;
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extern qboolean tcpipAvailable;
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extern char my_ipx_address[NET_NAMELEN];
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extern char my_tcpip_address[NET_NAMELEN];
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extern void (*GetComPortConfig) (int portNumber, int *port, int *irq, int *baud, qboolean *useModem);
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extern void (*SetComPortConfig) (int portNumber, int port, int irq, int baud, qboolean useModem);
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extern void (*GetModemConfig) (int portNumber, char *dialType, char *clear, char *init, char *hangup);
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extern void (*SetModemConfig) (int portNumber, char *dialType, char *clear, char *init, char *hangup);
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extern qboolean slistInProgress;
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extern qboolean slistSilent;
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extern qboolean slistLocal;
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void NET_Slist_f (void);
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