1 /* 2 Copyright (C) 1996-1997 Id Software, Inc. 3 4 This program is free software; you can redistribute it and/or 5 modify it under the terms of the GNU General Public License 6 as published by the Free Software Foundation; either version 2 7 of the License, or (at your option) any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 12 13 See the GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software 17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18 19 */ 20 // server.h 21 22 #define QW_SERVER 23 24 #define MAX_MASTERS 8 // max recipients for heartbeat packets 25 26 #define MAX_SIGNON_BUFFERS 8 27 28 typedef enum { 29 ss_dead, // no map loaded 30 ss_loading, // spawning level edicts 31 ss_active // actively running 32 } server_state_t; 33 // some qc commands are only valid before the server has finished 34 // initializing (precache commands, static sounds / objects, etc) 35 36 typedef struct 37 { 38 qboolean active; // false when server is going down 39 server_state_t state; // precache commands are only valid during load 40 41 double time; 42 43 int lastcheck; // used by PF_checkclient 44 double lastchecktime; // for monster ai 45 46 qboolean paused; // are we paused? 47 48 //check player/eyes models for hacks 49 unsigned model_player_checksum; 50 unsigned eyes_player_checksum; 51 52 char name[64]; // map name 53 char modelname[MAX_QPATH]; // maps/<name>.bsp, for model_precache[0] 54 struct model_s *worldmodel; 55 char *model_precache[MAX_MODELS]; // NULL terminated 56 char *sound_precache[MAX_SOUNDS]; // NULL terminated 57 char *lightstyles[MAX_LIGHTSTYLES]; 58 struct model_s *models[MAX_MODELS]; 59 60 int num_edicts; // increases towards MAX_EDICTS 61 edict_t *edicts; // can NOT be array indexed, because 62 // edict_t is variable sized, but can 63 // be used to reference the world ent 64 65 byte *pvs, *phs; // fully expanded and decompressed 66 67 // added to every client's unreliable buffer each frame, then cleared 68 sizebuf_t datagram; 69 byte datagram_buf[MAX_DATAGRAM]; 70 71 // added to every client's reliable buffer each frame, then cleared 72 sizebuf_t reliable_datagram; 73 byte reliable_datagram_buf[MAX_MSGLEN]; 74 75 // the multicast buffer is used to send a message to a set of clients 76 sizebuf_t multicast; 77 byte multicast_buf[MAX_MSGLEN]; 78 79 // the master buffer is used for building log packets 80 sizebuf_t master; 81 byte master_buf[MAX_DATAGRAM]; 82 83 // the signon buffer will be sent to each client as they connect 84 // includes the entity baselines, the static entities, etc 85 // large levels will have >MAX_DATAGRAM sized signons, so 86 // multiple signon messages are kept 87 sizebuf_t signon; 88 int num_signon_buffers; 89 int signon_buffer_size[MAX_SIGNON_BUFFERS]; 90 byte signon_buffers[MAX_SIGNON_BUFFERS][MAX_DATAGRAM]; 91 } server_t; 92 93 94 #define NUM_SPAWN_PARMS 16 95 96 typedef enum 97 { 98 cs_free, // can be reused for a new connection 99 cs_zombie, // client has been disconnected, but don't reuse 100 // connection for a couple seconds 101 cs_connected, // has been assigned to a client_t, but not in game yet 102 cs_spawned // client is fully in game 103 } client_state_t; 104 105 typedef struct 106 { 107 // received from client 108 109 // reply 110 double senttime; 111 float ping_time; 112 packet_entities_t entities; 113 } client_frame_t; 114 115 #define MAX_BACK_BUFFERS 4 116 117 typedef struct client_s 118 { 119 client_state_t state; 120 121 int spectator; // non-interactive 122 123 qboolean sendinfo; // at end of frame, send info to all 124 // this prevents malicious multiple broadcasts 125 float lastnametime; // time of last name change 126 int lastnamecount; // time of last name change 127 unsigned checksum; // checksum for calcs 128 qboolean drop; // lose this guy next opportunity 129 int lossage; // loss percentage 130 131 int userid; // identifying number 132 char userinfo[MAX_INFO_STRING]; // infostring 133 134 usercmd_t lastcmd; // for filling in big drops and partial predictions 135 double localtime; // of last message 136 int oldbuttons; 137 138 float maxspeed; // localized maxspeed 139 float entgravity; // localized ent gravity 140 141 edict_t *edict; // EDICT_NUM(clientnum+1) 142 char name[32]; // for printing to other people 143 // extracted from userinfo 144 int messagelevel; // for filtering printed messages 145 146 // the datagram is written to after every frame, but only cleared 147 // when it is sent out to the client. overflow is tolerated. 148 sizebuf_t datagram; 149 byte datagram_buf[MAX_DATAGRAM]; 150 151 // back buffers for client reliable data 152 sizebuf_t backbuf; 153 int num_backbuf; 154 int backbuf_size[MAX_BACK_BUFFERS]; 155 byte backbuf_data[MAX_BACK_BUFFERS][MAX_MSGLEN]; 156 157 double connection_started; // or time of disconnect for zombies 158 qboolean send_message; // set on frames a datagram arived on 159 160 // spawn parms are carried from level to level 161 float spawn_parms[NUM_SPAWN_PARMS]; 162 163 // client known data for deltas 164 int old_frags; 165 166 int stats[MAX_CL_STATS]; 167 168 169 client_frame_t frames[UPDATE_BACKUP]; // updates can be deltad from here 170 171 FILE *download; // file being downloaded 172 int downloadsize; // total bytes 173 int downloadcount; // bytes sent 174 175 int spec_track; // entnum of player tracking 176 177 double whensaid[10]; // JACK: For floodprots 178 int whensaidhead; // Head value for floodprots 179 double lockedtill; 180 181 qboolean upgradewarn; // did we warn him? 182 183 FILE *upload; 184 char uploadfn[MAX_QPATH]; 185 netadr_t snap_from; 186 qboolean remote_snap; 187 188 //===== NETWORK ============ 189 int chokecount; 190 int delta_sequence; // -1 = no compression 191 netchan_t netchan; 192 } client_t; 193 194 // a client can leave the server in one of four ways: 195 // dropping properly by quiting or disconnecting 196 // timing out if no valid messages are received for timeout.value seconds 197 // getting kicked off by the server operator 198 // a program error, like an overflowed reliable buffer 199 200 //============================================================================= 201 202 203 #define STATFRAMES 100 204 typedef struct 205 { 206 double active; 207 double idle; 208 int count; 209 int packets; 210 211 double latched_active; 212 double latched_idle; 213 int latched_packets; 214 } svstats_t; 215 216 // MAX_CHALLENGES is made large to prevent a denial 217 // of service attack that could cycle all of them 218 // out before legitimate users connected 219 #define MAX_CHALLENGES 1024 220 221 typedef struct 222 { 223 netadr_t adr; 224 int challenge; 225 int time; 226 } challenge_t; 227 228 typedef struct 229 { 230 int spawncount; // number of servers spawned since start, 231 // used to check late spawns 232 client_t clients[MAX_CLIENTS]; 233 int serverflags; // episode completion information 234 235 double last_heartbeat; 236 int heartbeat_sequence; 237 svstats_t stats; 238 239 char info[MAX_SERVERINFO_STRING]; 240 241 // log messages are used so that fraglog processes can get stats 242 int logsequence; // the message currently being filled 243 double logtime; // time of last swap 244 sizebuf_t log[2]; 245 byte log_buf[2][MAX_DATAGRAM]; 246 247 challenge_t challenges[MAX_CHALLENGES]; // to prevent invalid IPs from connecting 248 } server_static_t; 249 250 //============================================================================= 251 252 // edict->movetype values 253 #define MOVETYPE_NONE 0 // never moves 254 #define MOVETYPE_ANGLENOCLIP 1 255 #define MOVETYPE_ANGLECLIP 2 256 #define MOVETYPE_WALK 3 // gravity 257 #define MOVETYPE_STEP 4 // gravity, special edge handling 258 #define MOVETYPE_FLY 5 259 #define MOVETYPE_TOSS 6 // gravity 260 #define MOVETYPE_PUSH 7 // no clip to world, push and crush 261 #define MOVETYPE_NOCLIP 8 262 #define MOVETYPE_FLYMISSILE 9 // extra size to monsters 263 #define MOVETYPE_BOUNCE 10 264 265 // edict->solid values 266 #define SOLID_NOT 0 // no interaction with other objects 267 #define SOLID_TRIGGER 1 // touch on edge, but not blocking 268 #define SOLID_BBOX 2 // touch on edge, block 269 #define SOLID_SLIDEBOX 3 // touch on edge, but not an onground 270 #define SOLID_BSP 4 // bsp clip, touch on edge, block 271 272 // edict->deadflag values 273 #define DEAD_NO 0 274 #define DEAD_DYING 1 275 #define DEAD_DEAD 2 276 277 #define DAMAGE_NO 0 278 #define DAMAGE_YES 1 279 #define DAMAGE_AIM 2 280 281 // edict->flags 282 #define FL_FLY 1 283 #define FL_SWIM 2 284 #define FL_GLIMPSE 4 285 #define FL_CLIENT 8 286 #define FL_INWATER 16 287 #define FL_MONSTER 32 288 #define FL_GODMODE 64 289 #define FL_NOTARGET 128 290 #define FL_ITEM 256 291 #define FL_ONGROUND 512 292 #define FL_PARTIALGROUND 1024 // not all corners are valid 293 #define FL_WATERJUMP 2048 // player jumping out of water 294 295 // entity effects 296 297 //define EF_BRIGHTFIELD 1 298 //define EF_MUZZLEFLASH 2 299 #define EF_BRIGHTLIGHT 4 300 #define EF_DIMLIGHT 8 301 302 303 #define SPAWNFLAG_NOT_EASY 256 304 #define SPAWNFLAG_NOT_MEDIUM 512 305 #define SPAWNFLAG_NOT_HARD 1024 306 #define SPAWNFLAG_NOT_DEATHMATCH 2048 307 308 #define MULTICAST_ALL 0 309 #define MULTICAST_PHS 1 310 #define MULTICAST_PVS 2 311 312 #define MULTICAST_ALL_R 3 313 #define MULTICAST_PHS_R 4 314 #define MULTICAST_PVS_R 5 315 316 //============================================================================ 317 318 extern cvar_t sv_mintic, sv_maxtic; 319 extern cvar_t sv_maxspeed; 320 321 extern netadr_t master_adr[MAX_MASTERS]; // address of the master server 322 323 extern cvar_t spawn; 324 extern cvar_t teamplay; 325 extern cvar_t deathmatch; 326 extern cvar_t fraglimit; 327 extern cvar_t timelimit; 328 329 extern server_static_t svs; // persistant server info 330 extern server_t sv; // local server 331 332 extern client_t *host_client; 333 334 extern edict_t *sv_player; 335 336 extern char localmodels[MAX_MODELS][5]; // inline model names for precache 337 338 extern char localinfo[MAX_LOCALINFO_STRING+1]; 339 340 extern int host_hunklevel; 341 extern FILE *sv_logfile; 342 extern FILE *sv_fraglogfile; 343 344 //=========================================================== 345 346 // 347 // sv_main.c 348 // 349 void SV_Shutdown (void); 350 void SV_Frame (float time); 351 void SV_FinalMessage (char *message); 352 void SV_DropClient (client_t *drop); 353 354 int SV_CalcPing (client_t *cl); 355 void SV_FullClientUpdate (client_t *client, sizebuf_t *buf); 356 357 int SV_ModelIndex (char *name); 358 359 qboolean SV_CheckBottom (edict_t *ent); 360 qboolean SV_movestep (edict_t *ent, vec3_t move, qboolean relink); 361 362 void SV_WriteClientdataToMessage (client_t *client, sizebuf_t *msg); 363 364 void SV_MoveToGoal (void); 365 366 void SV_SaveSpawnparms (void); 367 368 void SV_Physics_Client (edict_t *ent); 369 370 void SV_ExecuteUserCommand (char *s); 371 void SV_InitOperatorCommands (void); 372 373 void SV_SendServerinfo (client_t *client); 374 void SV_ExtractFromUserinfo (client_t *cl); 375 376 377 void Master_Heartbeat (void); 378 void Master_Packet (void); 379 380 // 381 // sv_init.c 382 // 383 void SV_SpawnServer (char *server); 384 void SV_FlushSignon (void); 385 386 387 // 388 // sv_phys.c 389 // 390 void SV_ProgStartFrame (void); 391 void SV_Physics (void); 392 void SV_CheckVelocity (edict_t *ent); 393 void SV_AddGravity (edict_t *ent, float scale); 394 qboolean SV_RunThink (edict_t *ent); 395 void SV_Physics_Toss (edict_t *ent); 396 void SV_RunNewmis (void); 397 void SV_Impact (edict_t *e1, edict_t *e2); 398 void SV_SetMoveVars(void); 399 400 // 401 // sv_send.c 402 // 403 void SV_SendClientMessages (void); 404 405 void SV_Multicast (vec3_t origin, int to); 406 void SV_StartSound (edict_t *entity, int channel, char *sample, int volume, 407 float attenuation); 408 void SV_ClientPrintf (client_t *cl, int level, char *fmt, ...); 409 void SV_BroadcastPrintf (int level, char *fmt, ...); 410 void SV_BroadcastCommand (char *fmt, ...); 411 void SV_SendMessagesToAll (void); 412 void SV_FindModelNumbers (void); 413 414 // 415 // sv_user.c 416 // 417 void SV_ExecuteClientMessage (client_t *cl); 418 void SV_UserInit (void); 419 void SV_TogglePause (const char *msg); 420 421 422 // 423 // svonly.c 424 // 425 typedef enum {RD_NONE, RD_CLIENT, RD_PACKET} redirect_t; 426 void SV_BeginRedirect (redirect_t rd); 427 void SV_EndRedirect (void); 428 429 // 430 // sv_ccmds.c 431 // 432 void SV_Status_f (void); 433 434 // 435 // sv_ents.c 436 // 437 void SV_WriteEntitiesToClient (client_t *client, sizebuf_t *msg); 438 439 // 440 // sv_nchan.c 441 // 442 443 void ClientReliableCheckBlock(client_t *cl, int maxsize); 444 void ClientReliable_FinishWrite(client_t *cl); 445 void ClientReliableWrite_Begin(client_t *cl, int c, int maxsize); 446 void ClientReliableWrite_Angle(client_t *cl, float f); 447 void ClientReliableWrite_Angle16(client_t *cl, float f); 448 void ClientReliableWrite_Byte(client_t *cl, int c); 449 void ClientReliableWrite_Char(client_t *cl, int c); 450 void ClientReliableWrite_Float(client_t *cl, float f); 451 void ClientReliableWrite_Coord(client_t *cl, float f); 452 void ClientReliableWrite_Long(client_t *cl, int c); 453 void ClientReliableWrite_Short(client_t *cl, int c); 454 void ClientReliableWrite_String(client_t *cl, char *s); 455 void ClientReliableWrite_SZ(client_t *cl, void *data, int len); 456 457