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- /*
- Copyright (C) 1996-1997 Id Software, Inc.
-
- This program 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; either version 2
- of the License, or (at your option) any later version.
-
- This program 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 this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
- // net.h -- quake's interface to the networking layer
-
- struct qsockaddr
- {
- short sa_family;
- unsigned char sa_data[14];
- };
-
-
- #define NET_NAMELEN 64
-
- #define NET_MAXMESSAGE 8192
- #define NET_HEADERSIZE (2 * sizeof(unsigned int))
- #define NET_DATAGRAMSIZE (MAX_DATAGRAM + NET_HEADERSIZE)
-
- // NetHeader flags
- #define NETFLAG_LENGTH_MASK 0x0000ffff
- #define NETFLAG_DATA 0x00010000
- #define NETFLAG_ACK 0x00020000
- #define NETFLAG_NAK 0x00040000
- #define NETFLAG_EOM 0x00080000
- #define NETFLAG_UNRELIABLE 0x00100000
- #define NETFLAG_CTL 0x80000000
-
-
- #define NET_PROTOCOL_VERSION 3
-
- // This is the network info/connection protocol. It is used to find Quake
- // servers, get info about them, and connect to them. Once connected, the
- // Quake game protocol (documented elsewhere) is used.
- //
- //
- // General notes:
- // game_name is currently always "QUAKE", but is there so this same protocol
- // can be used for future games as well; can you say Quake2?
- //
- // CCREQ_CONNECT
- // string game_name "QUAKE"
- // byte net_protocol_version NET_PROTOCOL_VERSION
- //
- // CCREQ_SERVER_INFO
- // string game_name "QUAKE"
- // byte net_protocol_version NET_PROTOCOL_VERSION
- //
- // CCREQ_PLAYER_INFO
- // byte player_number
- //
- // CCREQ_RULE_INFO
- // string rule
- //
- //
- //
- // CCREP_ACCEPT
- // long port
- //
- // CCREP_REJECT
- // string reason
- //
- // CCREP_SERVER_INFO
- // string server_address
- // string host_name
- // string level_name
- // byte current_players
- // byte max_players
- // byte protocol_version NET_PROTOCOL_VERSION
- //
- // CCREP_PLAYER_INFO
- // byte player_number
- // string name
- // long colors
- // long frags
- // long connect_time
- // string address
- //
- // CCREP_RULE_INFO
- // string rule
- // string value
-
- // note:
- // There are two address forms used above. The short form is just a
- // port number. The address that goes along with the port is defined as
- // "whatever address you receive this reponse from". This lets us use
- // the host OS to solve the problem of multiple host addresses (possibly
- // with no routing between them); the host will use the right address
- // when we reply to the inbound connection request. The long from is
- // a full address and port in a string. It is used for returning the
- // address of a server that is not running locally.
-
- #define CCREQ_CONNECT 0x01
- #define CCREQ_SERVER_INFO 0x02
- #define CCREQ_PLAYER_INFO 0x03
- #define CCREQ_RULE_INFO 0x04
-
- #define CCREP_ACCEPT 0x81
- #define CCREP_REJECT 0x82
- #define CCREP_SERVER_INFO 0x83
- #define CCREP_PLAYER_INFO 0x84
- #define CCREP_RULE_INFO 0x85
-
- typedef struct qsocket_s
- {
- struct qsocket_s *next;
- double connecttime;
- double lastMessageTime;
- double lastSendTime;
-
- qboolean disconnected;
- qboolean canSend;
- qboolean sendNext;
-
- int driver;
- int landriver;
- int socket;
- void *driverdata;
-
- unsigned int ackSequence;
- unsigned int sendSequence;
- unsigned int unreliableSendSequence;
- int sendMessageLength;
- byte sendMessage [NET_MAXMESSAGE];
-
- unsigned int receiveSequence;
- unsigned int unreliableReceiveSequence;
- int receiveMessageLength;
- byte receiveMessage [NET_MAXMESSAGE];
-
- struct qsockaddr addr;
- char address[NET_NAMELEN];
-
- } qsocket_t;
-
- extern qsocket_t *net_activeSockets;
- extern qsocket_t *net_freeSockets;
- extern int net_numsockets;
-
- typedef struct
- {
- char *name;
- qboolean initialized;
- int controlSock;
- int (*Init) (void);
- void (*Shutdown) (void);
- void (*Listen) (qboolean state);
- int (*OpenSocket) (int port);
- int (*CloseSocket) (int socket);
- int (*Connect) (int socket, struct qsockaddr *addr);
- int (*CheckNewConnections) (void);
- int (*Read) (int socket, byte *buf, int len, struct qsockaddr *addr);
- int (*Write) (int socket, byte *buf, int len, struct qsockaddr *addr);
- int (*Broadcast) (int socket, byte *buf, int len);
- char * (*AddrToString) (struct qsockaddr *addr);
- int (*StringToAddr) (char *string, struct qsockaddr *addr);
- int (*GetSocketAddr) (int socket, struct qsockaddr *addr);
- int (*GetNameFromAddr) (struct qsockaddr *addr, char *name);
- int (*GetAddrFromName) (char *name, struct qsockaddr *addr);
- int (*AddrCompare) (struct qsockaddr *addr1, struct qsockaddr *addr2);
- int (*GetSocketPort) (struct qsockaddr *addr);
- int (*SetSocketPort) (struct qsockaddr *addr, int port);
- } net_landriver_t;
-
- #define MAX_NET_DRIVERS 8
- extern int net_numlandrivers;
- extern net_landriver_t net_landrivers[MAX_NET_DRIVERS];
-
- typedef struct
- {
- char *name;
- qboolean initialized;
- int (*Init) (void);
- void (*Listen) (qboolean state);
- void (*SearchForHosts) (qboolean xmit);
- qsocket_t *(*Connect) (char *host);
- qsocket_t *(*CheckNewConnections) (void);
- int (*QGetMessage) (qsocket_t *sock);
- int (*QSendMessage) (qsocket_t *sock, sizebuf_t *data);
- int (*SendUnreliableMessage) (qsocket_t *sock, sizebuf_t *data);
- qboolean (*CanSendMessage) (qsocket_t *sock);
- qboolean (*CanSendUnreliableMessage) (qsocket_t *sock);
- void (*Close) (qsocket_t *sock);
- void (*Shutdown) (void);
- int controlSock;
- } net_driver_t;
-
- extern int net_numdrivers;
- extern net_driver_t net_drivers[MAX_NET_DRIVERS];
-
- extern int DEFAULTnet_hostport;
- extern int net_hostport;
-
- extern int net_driverlevel;
- extern cvar_t hostname;
- extern char playername[];
- extern int playercolor;
-
- extern int messagesSent;
- extern int messagesReceived;
- extern int unreliableMessagesSent;
- extern int unreliableMessagesReceived;
-
- qsocket_t *NET_NewQSocket (void);
- void NET_FreeQSocket(qsocket_t *);
- double SetNetTime(void);
-
-
- #define HOSTCACHESIZE 8
-
- typedef struct
- {
- char name[16];
- char map[16];
- char cname[32];
- int users;
- int maxusers;
- int driver;
- int ldriver;
- struct qsockaddr addr;
- } hostcache_t;
-
- extern int hostCacheCount;
- extern hostcache_t hostcache[HOSTCACHESIZE];
-
- #if !defined(_WIN32 ) && !defined (__linux__) && !defined (__sun__)
- #ifndef htonl
- extern unsigned long htonl (unsigned long hostlong);
- #endif
- #ifndef htons
- extern unsigned short htons (unsigned short hostshort);
- #endif
- #ifndef ntohl
- extern unsigned long ntohl (unsigned long netlong);
- #endif
- #ifndef ntohs
- extern unsigned short ntohs (unsigned short netshort);
- #endif
- #endif
-
- #ifdef IDGODS
- qboolean IsID(struct qsockaddr *addr);
- #endif
-
- //============================================================================
- //
- // public network functions
- //
- //============================================================================
-
- extern double net_time;
- extern sizebuf_t net_message;
- extern int net_activeconnections;
-
- void NET_Init (void);
- void NET_Shutdown (void);
-
- struct qsocket_s *NET_CheckNewConnections (void);
- // returns a new connection number if there is one pending, else -1
-
- struct qsocket_s *NET_Connect (char *host);
- // called by client to connect to a host. Returns -1 if not able to
-
- qboolean NET_CanSendMessage (qsocket_t *sock);
- // Returns true or false if the given qsocket can currently accept a
- // message to be transmitted.
-
- int NET_GetMessage (struct qsocket_s *sock);
- // returns data in net_message sizebuf
- // returns 0 if no data is waiting
- // returns 1 if a message was received
- // returns 2 if an unreliable message was received
- // returns -1 if the connection died
-
- int NET_SendMessage (struct qsocket_s *sock, sizebuf_t *data);
- int NET_SendUnreliableMessage (struct qsocket_s *sock, sizebuf_t *data);
- // returns 0 if the message connot be delivered reliably, but the connection
- // is still considered valid
- // returns 1 if the message was sent properly
- // returns -1 if the connection died
-
- int NET_SendToAll(sizebuf_t *data, int blocktime);
- // This is a reliable *blocking* send to all attached clients.
-
-
- void NET_Close (struct qsocket_s *sock);
- // if a dead connection is returned by a get or send function, this function
- // should be called when it is convenient
-
- // Server calls when a client is kicked off for a game related misbehavior
- // like an illegal protocal conversation. Client calls when disconnecting
- // from a server.
- // A netcon_t number will not be reused until this function is called for it
-
- void NET_Poll(void);
-
-
- typedef struct _PollProcedure
- {
- struct _PollProcedure *next;
- double nextTime;
- void (*procedure)(void *arg);
- void *arg;
- } PollProcedure;
-
- void SchedulePollProcedure(PollProcedure *pp, double timeOffset);
-
- extern qboolean serialAvailable;
- extern qboolean ipxAvailable;
- extern qboolean tcpipAvailable;
- extern char my_ipx_address[NET_NAMELEN];
- extern char my_tcpip_address[NET_NAMELEN];
- extern void (*GetComPortConfig) (int portNumber, int *port, int *irq, int *baud, qboolean *useModem);
- extern void (*SetComPortConfig) (int portNumber, int port, int irq, int baud, qboolean useModem);
- extern void (*GetModemConfig) (int portNumber, char *dialType, char *clear, char *init, char *hangup);
- extern void (*SetModemConfig) (int portNumber, char *dialType, char *clear, char *init, char *hangup);
-
- extern qboolean slistInProgress;
- extern qboolean slistSilent;
- extern qboolean slistLocal;
-
- void NET_Slist_f (void);
-