2 * Copyright (C) 2021-2023 Mt.ZERO Software, Harry Godden - All Rights Reserved
5 #define _DEFAULT_SOURCE
10 volatile sig_atomic_t sig_stop
;
12 static void inthandler( int signum
) {
16 #include "gameserver.h"
17 #include "highscores.c"
18 #include "servermonitor_server.c"
19 #include "vg/vg_opt.h"
20 #include "network_common.h"
22 static const u64 k_connection_unauthorized
= 0xffffffffffffffff;
24 static u64_steamid
get_connection_authsteamid( SteamNetworkingMessage_t
*msg
){
25 i64 userdata
= SteamAPI_ISteamNetworkingSockets_GetConnectionUserData(
26 hSteamNetworkingSockets
, msg
->m_conn
);
28 return *((u64_steamid
*)&userdata
);
31 static void set_connection_authsteamid(HSteamNetConnection con
, u64_steamid id
){
32 i64 userdata
= *((i64
*)&id
);
34 SteamAPI_ISteamNetworkingSockets_SetConnectionUserData(
35 hSteamNetworkingSockets
, con
, userdata
);
38 static void gameserver_send_to_all( int ignore
,
39 const void *pData
, u32 cbData
,
41 for( int i
=0; i
<vg_list_size(gameserver
.clients
); i
++ ){
42 struct gameserver_client
*client
= &gameserver
.clients
[i
];
44 if( (i
==ignore
) || !client
->active
)
47 SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
48 hSteamNetworkingSockets
, client
->connection
,
49 pData
, cbData
, nSendFlags
, NULL
);
53 static void gameserver_player_join( int index
){
54 struct gameserver_client
*joiner
= &gameserver
.clients
[index
];
56 netmsg_playerjoin join
= { .inetmsg_id
= k_inetmsg_playerjoin
,
58 gameserver_send_to_all( index
, &join
, sizeof(join
),
59 k_nSteamNetworkingSend_Reliable
);
61 /* update the joining user about current connections */
63 netmsg_playerusername
*username
=
64 alloca( sizeof(netmsg_playerusername
) + NETWORK_USERNAME_MAX
);
65 username
->inetmsg_id
= k_inetmsg_playerusername
;
67 netmsg_playeritem
*item
=
68 alloca( sizeof(netmsg_playeritem
) + ADDON_UID_MAX
);
69 item
->inetmsg_id
= k_inetmsg_playeritem
;
71 for( int i
=0; i
<vg_list_size(gameserver
.clients
); i
++ ){
72 struct gameserver_client
*client
= &gameserver
.clients
[i
];
74 if( (i
==index
) || !client
->active
)
78 netmsg_playerjoin init
= { .inetmsg_id
= k_inetmsg_playerjoin
,
80 SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
81 hSteamNetworkingSockets
, joiner
->connection
,
82 &init
, sizeof(init
), k_nSteamNetworkingSend_Reliable
, NULL
);
86 u32 chs
= vg_strncpy( client
->username
, username
->name
,
88 k_strncpy_always_add_null
);
89 u32 size
= sizeof(netmsg_playerusername
) + chs
+ 1;
90 SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
91 hSteamNetworkingSockets
, joiner
->connection
,
92 username
, size
, k_nSteamNetworkingSend_Reliable
, NULL
);
95 chs
= vg_strncpy( client
->item_player
, item
->uid
, ADDON_UID_MAX
,
96 k_strncpy_always_add_null
);
97 item
->type
= k_addon_type_player
;
99 size
= sizeof(netmsg_playeritem
) + chs
+ 1;
100 SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
101 hSteamNetworkingSockets
, joiner
->connection
,
102 item
, size
, k_nSteamNetworkingSend_Reliable
, NULL
);
104 chs
= vg_strncpy( client
->item_board
, item
->uid
, ADDON_UID_MAX
,
105 k_strncpy_always_add_null
);
106 item
->type
= k_addon_type_board
;
108 size
= sizeof(netmsg_playeritem
) + chs
+ 1;
109 SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
110 hSteamNetworkingSockets
, joiner
->connection
,
111 item
, size
, k_nSteamNetworkingSend_Reliable
, NULL
);
115 static void gameserver_player_leave( int index
){
116 netmsg_playerjoin leave
;
117 leave
.inetmsg_id
= k_inetmsg_playerleave
;
120 vg_info( "Player leave (%d)\n", index
);
121 gameserver_send_to_all( index
, &leave
, sizeof(leave
),
122 k_nSteamNetworkingSend_Reliable
);
125 static void new_client_connecting( HSteamNetConnection client
){
129 for( int i
=0; i
<vg_list_size(gameserver
.clients
); i
++ ){
130 if( !gameserver
.clients
[i
].active
){
137 vg_error( "Server full\n" );
138 SteamAPI_ISteamNetworkingSockets_CloseConnection(
139 hSteamNetworkingSockets
, client
,
145 EResult accept_status
= SteamAPI_ISteamNetworkingSockets_AcceptConnection(
146 hSteamNetworkingSockets
, client
);
147 if( accept_status
== k_EResultOK
){
148 vg_success( "Accepted client (id: %u, index: %d)\n", client
, index
);
150 gameserver
.clients
[index
].active
= 1;
151 gameserver
.clients
[index
].connection
= client
;
153 SteamAPI_ISteamNetworkingSockets_SetConnectionPollGroup(
154 hSteamNetworkingSockets
,
155 client
, gameserver
.client_group
);
157 /* Just to be sure */
158 set_connection_authsteamid( client
, -1 );
159 gameserver_player_join( index
);
162 vg_warn( "Error accepting client (id: %u)\n", client
);
163 SteamAPI_ISteamNetworkingSockets_CloseConnection(
164 hSteamNetworkingSockets
, client
,
165 k_ESteamNetConnectionEnd_Misc_InternalError
,
167 gameserver
.clients
[index
].active
= 0;
168 gameserver
.clients
[index
].connection
= 0;
172 static void on_auth_status( CallbackMsg_t
*msg
){
173 SteamNetAuthenticationStatus_t
*info
= (void *)msg
->m_pubParam
;
174 vg_info( " Authentication availibility: %s\n",
175 string_ESteamNetworkingAvailability(info
->m_eAvail
) );
176 vg_info( " %s\n", info
->m_debugMsg
);
179 static int gameserver_client_index( HSteamNetConnection hconn
){
180 for( int i
=0; i
<vg_list_size(gameserver
.clients
); i
++ ){
181 struct gameserver_client
*client
= &gameserver
.clients
[i
];
183 if( client
->active
){
184 if( client
->connection
== hconn
){
192 static void on_connect_status( CallbackMsg_t
*msg
){
193 SteamNetConnectionStatusChangedCallback_t
*info
= (void *)msg
->m_pubParam
;
194 vg_info( " Connection status changed for %lu\n", info
->m_hConn
);
196 vg_info( " %s -> %s\n",
197 string_ESteamNetworkingConnectionState(info
->m_eOldState
),
198 string_ESteamNetworkingConnectionState(info
->m_info
.m_eState
) );
200 if( info
->m_info
.m_eState
==k_ESteamNetworkingConnectionState_Connecting
){
201 new_client_connecting( info
->m_hConn
);
204 if( (info
->m_info
.m_eState
==
205 k_ESteamNetworkingConnectionState_ClosedByPeer
) ||
206 (info
->m_info
.m_eState
==
207 k_ESteamNetworkingConnectionState_ProblemDetectedLocally
) ){
209 int client_id
= gameserver_client_index( info
->m_hConn
);
210 if( client_id
!= -1 ){
211 struct gameserver_client
*client
= &gameserver
.clients
[client_id
];
212 client
->connection
= 0;
214 gameserver_player_leave(client_id
);
217 vg_info( "End reason: %d\n", info
->m_info
.m_eEndReason
);
218 SteamAPI_ISteamNetworkingSockets_CloseConnection(
219 hSteamNetworkingSockets
, info
->m_hConn
, 0, NULL
, 0 );
223 static void gameserver_rx_auth( SteamNetworkingMessage_t
*msg
){
224 if( gameserver
.auth_mode
!= eServerModeAuthentication
){
225 vg_error( "Running server without authentication. "
226 "Connection %u tried to authenticate.\n", msg
->m_conn
);
230 if( get_connection_authsteamid( msg
) != k_connection_unauthorized
){
231 vg_warn( "Already authorized this user but app ticket was sent"
232 " again (%u)\n", msg
->m_conn
);
236 vg_low( "Attempting to verify user\n" );
238 if( msg
->m_cbSize
< sizeof(netmsg_auth
) ){
239 vg_error( "Malformed auth ticket, too small (%u)\n", msg
->m_conn
);
243 netmsg_auth
*auth
= msg
->m_pData
;
245 if( msg
->m_cbSize
< sizeof(netmsg_auth
)+auth
->ticket_length
||
246 auth
->ticket_length
> 1024 ){
247 vg_error( "Malformed auth ticket, ticket_length incorrect (%u)\n",
248 auth
->ticket_length
);
253 u32 ticket_len
= 1024;
255 int success
= SteamEncryptedAppTicket_BDecryptTicket(
256 auth
->ticket
, auth
->ticket_length
, decrypted
,
257 &ticket_len
, gameserver
.app_symmetric_key
,
258 k_nSteamEncryptedAppTicketSymmetricKeyLen
);
261 vg_error( "Failed to decrypt users ticket (client %u)\n", msg
->m_conn
);
262 vg_error( " ticket length: %u\n", auth
->ticket_length
);
264 SteamAPI_ISteamNetworkingSockets_CloseConnection(
265 hSteamNetworkingSockets
,
266 msg
->m_conn
, 0, NULL
, 1 );
270 if( SteamEncryptedAppTicket_GetTicketIssueTime( decrypted
, ticket_len
)){
271 RTime32 ctime
= time(NULL
),
272 tickettime
= SteamEncryptedAppTicket_GetTicketIssueTime(
273 decrypted
, ticket_len
),
274 expiretime
= tickettime
+ 24*3*60*60;
276 if( ctime
> expiretime
){
277 vg_error( "Ticket expired (client %u)\n", msg
->m_conn
);
279 /* TODO: Send expired information */
280 SteamAPI_ISteamNetworkingSockets_CloseConnection(
281 hSteamNetworkingSockets
,
282 msg
->m_conn
, 0, NULL
, 1 );
288 SteamEncryptedAppTicket_GetTicketSteamID( decrypted
, ticket_len
, &steamid
);
289 vg_success( "User is authenticated! steamid %lu (%u)\n",
290 steamid
.m_unAll64Bits
, msg
->m_conn
);
292 set_connection_authsteamid( msg
->m_conn
, steamid
.m_unAll64Bits
);
295 static int inet_require_auth( SteamNetworkingMessage_t
*msg
){
296 if( gameserver
.auth_mode
== eServerModeNoAuthentication
)
299 if( get_connection_authsteamid( msg
) == k_connection_unauthorized
){
300 vg_warn( "Unauthorized request! Disconnecting client: %u\n",
303 SteamAPI_ISteamNetworkingSockets_CloseConnection(
304 hSteamNetworkingSockets
,
305 msg
->m_conn
, 0, NULL
, 1 );
313 * Player updates sent to us
314 * -----------------------------------------------------------------------------
317 static int packet_minsize( SteamNetworkingMessage_t
*msg
, u32 size
){
318 if( msg
->m_cbSize
< size
) {
319 vg_error( "Invalid packet size (must be at least %u)\n", size
);
327 static void gameserver_rx_200_300( SteamNetworkingMessage_t
*msg
){
328 netmsg_blank
*tmp
= msg
->m_pData
;
330 int client_id
= gameserver_client_index( msg
->m_conn
);
331 if( client_id
== -1 ) return;
333 if( tmp
->inetmsg_id
== k_inetmsg_playerusername
){
334 if( !packet_minsize( msg
, sizeof(netmsg_playerusername
)+1 ))
337 struct gameserver_client
*client
= &gameserver
.clients
[ client_id
];
338 netmsg_playerusername
*src
= msg
->m_pData
;
340 u32 name_len
= network_msgstring( src
->name
, msg
->m_cbSize
,
341 sizeof(netmsg_playerusername
),
343 NETWORK_USERNAME_MAX
);
345 /* update other users about this change */
346 netmsg_playerusername
*prop
= alloca(sizeof(netmsg_playerusername
)+
347 NETWORK_USERNAME_MAX
);
349 prop
->inetmsg_id
= k_inetmsg_playerusername
;
350 prop
->index
= client_id
;
351 u32 chs
= vg_strncpy( client
->username
, prop
->name
, name_len
,
352 k_strncpy_always_add_null
);
354 vg_info( "client #%d changed name to: %s [%s]\n", client_id
,
355 client
->username
, prop
->name
);
357 u32 propsize
= sizeof(netmsg_playerusername
) + chs
+ 1;
358 gameserver_send_to_all( client_id
, prop
, propsize
,
359 k_nSteamNetworkingSend_Reliable
);
361 else if( tmp
->inetmsg_id
== k_inetmsg_playerframe
){
363 netmsg_playerframe
*frame
= alloca(msg
->m_cbSize
);
364 memcpy( frame
, msg
->m_pData
, msg
->m_cbSize
);
365 frame
->client
= client_id
;
366 gameserver_send_to_all( client_id
, frame
, msg
->m_cbSize
,
367 k_nSteamNetworkingSend_Unreliable
);
369 else if( tmp
->inetmsg_id
== k_inetmsg_playeritem
){
370 netmsg_playeritem
*item
= alloca(msg
->m_cbSize
);
371 memcpy( item
, msg
->m_pData
, msg
->m_cbSize
);
372 item
->client
= client_id
;
374 vg_info( "Client #%u equiped: [%u] %s\n",
375 item
->client
, item
->type
, item
->uid
);
377 gameserver_send_to_all( client_id
, item
, msg
->m_cbSize
,
378 k_nSteamNetworkingSend_Reliable
);
383 static void on_inet_score_request( SteamNetworkingMessage_t
*msg
){
384 if( !inet_require_auth(msg
) ) return;
386 SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
387 hSteamNetworkingSockets
, msg
->m_conn
,
388 &scoreboard_client_data
, sizeof(netmsg_scoreboard
),
389 k_nSteamNetworkingSend_Reliable
, NULL
);
392 static void on_inet_set_nickname( SteamNetworkingMessage_t
*msg
){
393 if(!inet_require_auth(msg
)) return;
395 u64_steamid steamid
= get_connection_authsteamid(msg
);
396 netmsg_set_nickname
*setnick
= msg
->m_pData
;
397 if( msg
->m_cbSize
< sizeof(netmsg_set_nickname
) ){
398 vg_warn( "Invalid nickname request from client: %u, steamid: %lu\n",
399 msg
->m_conn
, steamid
);
403 highscore_set_user_nickname( steamid
, setnick
->nickname
);
406 static void on_inet_set_score( SteamNetworkingMessage_t
*msg
){
407 if(!inet_require_auth(msg
)) return;
409 u64_steamid steamid
= get_connection_authsteamid(msg
);
411 if( msg
->m_cbSize
< sizeof(netmsg_set_score
) ){
412 vg_warn( "Invalid set score post from client: %u, steamid: %lu\n",
413 msg
->m_conn
, steamid
);
417 netmsg_set_score
*info
= msg
->m_pData
;
419 if( msg
->m_cbSize
< sizeof(netmsg_set_score
) +
420 sizeof(struct netmsg_score_record
)*info
->record_count
){
421 vg_warn( "Malformed set score post from client: %u, steamid: %lu\n",
422 msg
->m_conn
, steamid
);
426 for( int i
=0; i
<info
->record_count
; i
++ ){
427 highscore_record temp
;
428 temp
.trackid
= info
->records
[i
].trackid
;
429 temp
.datetime
= time(NULL
);
430 temp
.playerid
= steamid
;
431 temp
.points
= info
->records
[i
].points
;
432 temp
.time
= info
->records
[i
].time
;
434 highscores_push_record( &temp
);
439 static void poll_connections(void){
440 SteamNetworkingMessage_t
*messages
[32];
444 len
= SteamAPI_ISteamNetworkingSockets_ReceiveMessagesOnPollGroup(
445 hSteamNetworkingSockets
,
446 gameserver
.client_group
, messages
, vg_list_size(messages
) );
451 for( int i
=0; i
<len
; i
++ ){
452 SteamNetworkingMessage_t
*msg
= messages
[i
];
454 if( msg
->m_cbSize
< sizeof(netmsg_blank
) ){
455 vg_warn( "Discarding message (too small: %d)\n",
460 netmsg_blank
*tmp
= msg
->m_pData
;
462 if( (tmp
->inetmsg_id
>= 200) && (tmp
->inetmsg_id
< 300) ){
463 gameserver_rx_200_300( msg
);
466 if( tmp
->inetmsg_id
== k_inetmsg_auth
)
467 gameserver_rx_auth( msg
);
469 else if( tmp
->inetmsg_id
== k_inetmsg_scores_request
)
470 on_inet_score_request( msg
);
471 else if( tmp
->inetmsg_id
== k_inetmsg_set_nickname
)
472 on_inet_set_nickname( msg
);
473 else if( tmp
->inetmsg_id
== k_inetmsg_set_score
)
474 on_inet_set_score( msg
);
475 else if( tmp
->inetmsg_id
== k_inetmsg_playerframe
)
476 on_inet_playerframe( msg
);
479 vg_warn( "Unknown inetmsg_id recieved from client. (%u)\n",
485 SteamAPI_SteamNetworkingMessage_t_Release( msg
);
490 static u64
seconds_to_server_ticks( double s
){
494 static void generate_boards(void){
495 FILE *fp
= fopen( "www/html/srhighscores.txt", "w" );
498 vg_error( "Can't write boards to www/html/srhighscores.txt\n" );
502 for( int i
=0; i
<vg_list_size(track_infos
); i
++ ){
503 struct netmsg_board
*board
= &scoreboard_client_data
.boards
[i
];
505 highscores_board_generate( board
->data
, i
, 10 );
506 highscores_board_printf( fp
, board
->data
, 10 );
512 int main( int argc
, char *argv
[] ){
513 signal( SIGINT
, inthandler
);
514 signal( SIGQUIT
, inthandler
);
515 signal( SIGPIPE
, SIG_IGN
);
518 while( vg_argp( argc
, argv
) ){
519 if( vg_long_opt( "noauth" ) )
520 gameserver
.auth_mode
= eServerModeNoAuthentication
;
523 /* TODO: Options to override, ammend, remove etc */
525 vg_set_mem_quota( 80*1024*1024 );
528 highscores_init( 250000, 10000 );
530 if( !highscores_read() )
531 highscores_create_db();
533 steamworks_ensure_txt( "2103940" );
535 if( gameserver
.auth_mode
== eServerModeAuthentication
){
536 if( !vg_load_steam_symetric_key( "application_key",
537 gameserver
.app_symmetric_key
)){
542 vg_warn( "Running without user authentication.\n" );
545 if( !SteamGameServer_Init( 0, 27400, 27401,
546 gameserver
.auth_mode
, "1.0.0.0" ) ){
547 vg_error( "SteamGameServer_Init failed\n" );
551 void *hSteamGameServer
= SteamAPI_SteamGameServer();
552 SteamAPI_ISteamGameServer_LogOnAnonymous( hSteamGameServer
);
554 SteamAPI_ManualDispatch_Init();
555 HSteamPipe hsteampipe
= SteamGameServer_GetHSteamPipe();
557 //hSteamHTTP = SteamAPI_SteamGameServerHTTP();
558 hSteamNetworkingSockets
=
559 SteamAPI_SteamGameServerNetworkingSockets_SteamAPI();
565 steam_register_callback( k_iSteamNetAuthenticationStatus
, on_auth_status
);
566 steam_register_callback( k_iSteamNetConnectionStatusChangedCallBack
,
569 vg_success( "Steamworks API running\n" );
570 steamworks_event_loop( hsteampipe
);
576 HSteamListenSocket listener
;
577 SteamNetworkingIPAddr localAddr
;
578 SteamAPI_SteamNetworkingIPAddr_Clear( &localAddr
);
579 localAddr
.m_port
= 27402;
581 listener
= SteamAPI_ISteamNetworkingSockets_CreateListenSocketIP(
582 hSteamNetworkingSockets
, &localAddr
, 0, NULL
);
583 gameserver
.client_group
= SteamAPI_ISteamNetworkingSockets_CreatePollGroup(
584 hSteamNetworkingSockets
);
586 u64 server_ticks
= 8000,
587 last_record_save
= 8000,
588 last_scoreboard_gen
= 0,
589 last_monitor_heartbeat
= 0;
592 monitor_start_server();
595 monitor_event_loop();
596 steamworks_event_loop( hsteampipe
);
603 (last_monitor_heartbeat
+ seconds_to_server_ticks(10.0))){
604 last_monitor_heartbeat
= server_ticks
;
608 if( server_ticks
> last_scoreboard_gen
+ seconds_to_server_ticks(60.0) ){
609 last_scoreboard_gen
= server_ticks
;
613 if( server_ticks
> last_record_save
+ seconds_to_server_ticks(10.0*60.0)){
614 last_record_save
= server_ticks
;
615 highscores_serialize_all();
619 highscores_serialize_all();
621 SteamAPI_ISteamNetworkingSockets_DestroyPollGroup( hSteamNetworkingSockets
,
622 gameserver
.client_group
);
623 SteamAPI_ISteamNetworkingSockets_CloseListenSocket(
624 hSteamNetworkingSockets
, listener
);
626 vg_info( "Shutting down\n..." );
627 SteamGameServer_Shutdown();