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
;
98 size
= sizeof(netmsg_playeritem
) + chs
+ 1;
99 SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
100 hSteamNetworkingSockets
, joiner
->connection
,
101 item
, size
, k_nSteamNetworkingSend_Reliable
, NULL
);
103 chs
= vg_strncpy( client
->item_board
, item
->uid
, ADDON_UID_MAX
,
104 k_strncpy_always_add_null
);
105 item
->type
= k_addon_type_board
;
106 size
= sizeof(netmsg_playeritem
) + chs
+ 1;
107 SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
108 hSteamNetworkingSockets
, joiner
->connection
,
109 item
, size
, k_nSteamNetworkingSend_Reliable
, NULL
);
113 static void gameserver_player_leave( int index
){
114 netmsg_playerjoin leave
;
115 leave
.inetmsg_id
= k_inetmsg_playerleave
;
118 vg_info( "Player leave (%d)\n", index
);
119 gameserver_send_to_all( index
, &leave
, sizeof(leave
),
120 k_nSteamNetworkingSend_Reliable
);
123 static void new_client_connecting( HSteamNetConnection client
){
127 for( int i
=0; i
<vg_list_size(gameserver
.clients
); i
++ ){
128 if( !gameserver
.clients
[i
].active
){
135 vg_error( "Server full\n" );
136 SteamAPI_ISteamNetworkingSockets_CloseConnection(
137 hSteamNetworkingSockets
, client
,
143 EResult accept_status
= SteamAPI_ISteamNetworkingSockets_AcceptConnection(
144 hSteamNetworkingSockets
, client
);
145 if( accept_status
== k_EResultOK
){
146 vg_success( "Accepted client (id: %u, index: %d)\n", client
, index
);
148 gameserver
.clients
[index
].active
= 1;
149 gameserver
.clients
[index
].connection
= client
;
151 SteamAPI_ISteamNetworkingSockets_SetConnectionPollGroup(
152 hSteamNetworkingSockets
,
153 client
, gameserver
.client_group
);
155 /* Just to be sure */
156 set_connection_authsteamid( client
, -1 );
157 gameserver_player_join( index
);
160 vg_warn( "Error accepting client (id: %u)\n", client
);
161 SteamAPI_ISteamNetworkingSockets_CloseConnection(
162 hSteamNetworkingSockets
, client
,
163 k_ESteamNetConnectionEnd_Misc_InternalError
,
165 gameserver
.clients
[index
].active
= 0;
166 gameserver
.clients
[index
].connection
= 0;
170 static void on_auth_status( CallbackMsg_t
*msg
){
171 SteamNetAuthenticationStatus_t
*info
= (void *)msg
->m_pubParam
;
172 vg_info( " Authentication availibility: %s\n",
173 string_ESteamNetworkingAvailability(info
->m_eAvail
) );
174 vg_info( " %s\n", info
->m_debugMsg
);
177 static int gameserver_client_index( HSteamNetConnection hconn
){
178 for( int i
=0; i
<vg_list_size(gameserver
.clients
); i
++ ){
179 struct gameserver_client
*client
= &gameserver
.clients
[i
];
181 if( client
->active
){
182 if( client
->connection
== hconn
){
190 static void on_connect_status( CallbackMsg_t
*msg
){
191 SteamNetConnectionStatusChangedCallback_t
*info
= (void *)msg
->m_pubParam
;
192 vg_info( " Connection status changed for %lu\n", info
->m_hConn
);
194 vg_info( " %s -> %s\n",
195 string_ESteamNetworkingConnectionState(info
->m_eOldState
),
196 string_ESteamNetworkingConnectionState(info
->m_info
.m_eState
) );
198 if( info
->m_info
.m_eState
==k_ESteamNetworkingConnectionState_Connecting
){
199 new_client_connecting( info
->m_hConn
);
202 if( (info
->m_info
.m_eState
==
203 k_ESteamNetworkingConnectionState_ClosedByPeer
) ||
204 (info
->m_info
.m_eState
==
205 k_ESteamNetworkingConnectionState_ProblemDetectedLocally
) ){
207 int client_id
= gameserver_client_index( info
->m_hConn
);
208 if( client_id
!= -1 ){
209 struct gameserver_client
*client
= &gameserver
.clients
[client_id
];
210 client
->connection
= 0;
212 gameserver_player_leave(client_id
);
215 vg_info( "End reason: %d\n", info
->m_info
.m_eEndReason
);
216 SteamAPI_ISteamNetworkingSockets_CloseConnection(
217 hSteamNetworkingSockets
, info
->m_hConn
, 0, NULL
, 0 );
221 static void gameserver_rx_auth( SteamNetworkingMessage_t
*msg
){
222 if( gameserver
.auth_mode
!= eServerModeAuthentication
){
223 vg_error( "Running server without authentication. "
224 "Connection %u tried to authenticate.\n", msg
->m_conn
);
228 if( get_connection_authsteamid( msg
) != k_connection_unauthorized
){
229 vg_warn( "Already authorized this user but app ticket was sent"
230 " again (%u)\n", msg
->m_conn
);
234 vg_low( "Attempting to verify user\n" );
236 if( msg
->m_cbSize
< sizeof(netmsg_auth
) ){
237 vg_error( "Malformed auth ticket, too small (%u)\n", msg
->m_conn
);
241 netmsg_auth
*auth
= msg
->m_pData
;
243 if( msg
->m_cbSize
< sizeof(netmsg_auth
)+auth
->ticket_length
||
244 auth
->ticket_length
> 1024 ){
245 vg_error( "Malformed auth ticket, ticket_length incorrect (%u)\n",
246 auth
->ticket_length
);
251 u32 ticket_len
= 1024;
253 int success
= SteamEncryptedAppTicket_BDecryptTicket(
254 auth
->ticket
, auth
->ticket_length
, decrypted
,
255 &ticket_len
, gameserver
.app_symmetric_key
,
256 k_nSteamEncryptedAppTicketSymmetricKeyLen
);
259 vg_error( "Failed to decrypt users ticket (client %u)\n", msg
->m_conn
);
260 vg_error( " ticket length: %u\n", auth
->ticket_length
);
262 SteamAPI_ISteamNetworkingSockets_CloseConnection(
263 hSteamNetworkingSockets
,
264 msg
->m_conn
, 0, NULL
, 1 );
268 if( SteamEncryptedAppTicket_GetTicketIssueTime( decrypted
, ticket_len
)){
269 RTime32 ctime
= time(NULL
),
270 tickettime
= SteamEncryptedAppTicket_GetTicketIssueTime(
271 decrypted
, ticket_len
),
272 expiretime
= tickettime
+ 24*3*60*60;
274 if( ctime
> expiretime
){
275 vg_error( "Ticket expired (client %u)\n", msg
->m_conn
);
277 /* TODO: Send expired information */
278 SteamAPI_ISteamNetworkingSockets_CloseConnection(
279 hSteamNetworkingSockets
,
280 msg
->m_conn
, 0, NULL
, 1 );
286 SteamEncryptedAppTicket_GetTicketSteamID( decrypted
, ticket_len
, &steamid
);
287 vg_success( "User is authenticated! steamid %lu (%u)\n",
288 steamid
.m_unAll64Bits
, msg
->m_conn
);
290 set_connection_authsteamid( msg
->m_conn
, steamid
.m_unAll64Bits
);
293 static int inet_require_auth( SteamNetworkingMessage_t
*msg
){
294 if( gameserver
.auth_mode
== eServerModeNoAuthentication
)
297 if( get_connection_authsteamid( msg
) == k_connection_unauthorized
){
298 vg_warn( "Unauthorized request! Disconnecting client: %u\n",
301 SteamAPI_ISteamNetworkingSockets_CloseConnection(
302 hSteamNetworkingSockets
,
303 msg
->m_conn
, 0, NULL
, 1 );
311 * Player updates sent to us
312 * -----------------------------------------------------------------------------
315 static int packet_minsize( SteamNetworkingMessage_t
*msg
, u32 size
){
316 if( msg
->m_cbSize
< size
) {
317 vg_error( "Invalid packet size (must be at least %u)\n", size
);
325 static void gameserver_rx_200_300( SteamNetworkingMessage_t
*msg
){
326 netmsg_blank
*tmp
= msg
->m_pData
;
328 int client_id
= gameserver_client_index( msg
->m_conn
);
329 if( client_id
== -1 ) return;
331 if( tmp
->inetmsg_id
== k_inetmsg_playerusername
){
332 if( !packet_minsize( msg
, sizeof(netmsg_playerusername
)+1 ))
335 struct gameserver_client
*client
= &gameserver
.clients
[ client_id
];
336 netmsg_playerusername
*src
= msg
->m_pData
;
338 u32 name_len
= network_msgstring( src
->name
, msg
->m_cbSize
,
339 sizeof(netmsg_playerusername
),
341 NETWORK_USERNAME_MAX
);
343 /* update other users about this change */
344 netmsg_playerusername
*prop
= alloca(sizeof(netmsg_playerusername
)+
345 NETWORK_USERNAME_MAX
);
347 prop
->inetmsg_id
= k_inetmsg_playerusername
;
348 prop
->index
= client_id
;
349 u32 chs
= vg_strncpy( client
->username
, prop
->name
, name_len
,
350 k_strncpy_always_add_null
);
352 vg_info( "client #%d changed name to: %s\n", client_id
,
355 u32 propsize
= sizeof(netmsg_playerusername
) + chs
+ 1;
356 gameserver_send_to_all( client_id
, prop
, propsize
,
357 k_nSteamNetworkingSend_Reliable
);
359 else if( tmp
->inetmsg_id
== k_inetmsg_playerframe
){
361 netmsg_playerframe
*frame
= alloca(msg
->m_cbSize
);
362 memcpy( frame
, msg
->m_pData
, msg
->m_cbSize
);
363 frame
->client
= client_id
;
364 gameserver_send_to_all( client_id
, frame
, msg
->m_cbSize
,
365 k_nSteamNetworkingSend_Unreliable
);
367 else if( tmp
->inetmsg_id
== k_inetmsg_playeritem
){
368 netmsg_playeritem
*item
= alloca(msg
->m_cbSize
);
369 memcpy( item
, msg
->m_pData
, msg
->m_cbSize
);
370 item
->client
= client_id
;
372 vg_info( "Client #%u equiped: [%u] %s\n",
373 item
->client
, item
->type
, item
->uid
);
375 gameserver_send_to_all( client_id
, item
, msg
->m_cbSize
,
376 k_nSteamNetworkingSend_Reliable
);
381 static void on_inet_score_request( SteamNetworkingMessage_t
*msg
){
382 if( !inet_require_auth(msg
) ) return;
384 SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
385 hSteamNetworkingSockets
, msg
->m_conn
,
386 &scoreboard_client_data
, sizeof(netmsg_scoreboard
),
387 k_nSteamNetworkingSend_Reliable
, NULL
);
390 static void on_inet_set_nickname( SteamNetworkingMessage_t
*msg
){
391 if(!inet_require_auth(msg
)) return;
393 u64_steamid steamid
= get_connection_authsteamid(msg
);
394 netmsg_set_nickname
*setnick
= msg
->m_pData
;
395 if( msg
->m_cbSize
< sizeof(netmsg_set_nickname
) ){
396 vg_warn( "Invalid nickname request from client: %u, steamid: %lu\n",
397 msg
->m_conn
, steamid
);
401 highscore_set_user_nickname( steamid
, setnick
->nickname
);
404 static void on_inet_set_score( SteamNetworkingMessage_t
*msg
){
405 if(!inet_require_auth(msg
)) return;
407 u64_steamid steamid
= get_connection_authsteamid(msg
);
409 if( msg
->m_cbSize
< sizeof(netmsg_set_score
) ){
410 vg_warn( "Invalid set score post from client: %u, steamid: %lu\n",
411 msg
->m_conn
, steamid
);
415 netmsg_set_score
*info
= msg
->m_pData
;
417 if( msg
->m_cbSize
< sizeof(netmsg_set_score
) +
418 sizeof(struct netmsg_score_record
)*info
->record_count
){
419 vg_warn( "Malformed set score post from client: %u, steamid: %lu\n",
420 msg
->m_conn
, steamid
);
424 for( int i
=0; i
<info
->record_count
; i
++ ){
425 highscore_record temp
;
426 temp
.trackid
= info
->records
[i
].trackid
;
427 temp
.datetime
= time(NULL
);
428 temp
.playerid
= steamid
;
429 temp
.points
= info
->records
[i
].points
;
430 temp
.time
= info
->records
[i
].time
;
432 highscores_push_record( &temp
);
437 static void poll_connections(void){
438 SteamNetworkingMessage_t
*messages
[32];
442 len
= SteamAPI_ISteamNetworkingSockets_ReceiveMessagesOnPollGroup(
443 hSteamNetworkingSockets
,
444 gameserver
.client_group
, messages
, vg_list_size(messages
) );
449 for( int i
=0; i
<len
; i
++ ){
450 SteamNetworkingMessage_t
*msg
= messages
[i
];
452 if( msg
->m_cbSize
< sizeof(netmsg_blank
) ){
453 vg_warn( "Discarding message (too small: %d)\n",
458 netmsg_blank
*tmp
= msg
->m_pData
;
460 if( (tmp
->inetmsg_id
>= 200) && (tmp
->inetmsg_id
< 300) ){
461 gameserver_rx_200_300( msg
);
464 if( tmp
->inetmsg_id
== k_inetmsg_auth
)
465 gameserver_rx_auth( msg
);
467 else if( tmp
->inetmsg_id
== k_inetmsg_scores_request
)
468 on_inet_score_request( msg
);
469 else if( tmp
->inetmsg_id
== k_inetmsg_set_nickname
)
470 on_inet_set_nickname( msg
);
471 else if( tmp
->inetmsg_id
== k_inetmsg_set_score
)
472 on_inet_set_score( msg
);
473 else if( tmp
->inetmsg_id
== k_inetmsg_playerframe
)
474 on_inet_playerframe( msg
);
477 vg_warn( "Unknown inetmsg_id recieved from client. (%u)\n",
483 SteamAPI_SteamNetworkingMessage_t_Release( msg
);
488 static u64
seconds_to_server_ticks( double s
){
492 static void generate_boards(void){
493 FILE *fp
= fopen( "www/html/srhighscores.txt", "w" );
496 vg_error( "Can't write boards to www/html/srhighscores.txt\n" );
500 for( int i
=0; i
<vg_list_size(track_infos
); i
++ ){
501 struct netmsg_board
*board
= &scoreboard_client_data
.boards
[i
];
503 highscores_board_generate( board
->data
, i
, 10 );
504 highscores_board_printf( fp
, board
->data
, 10 );
510 int main( int argc
, char *argv
[] ){
511 signal( SIGINT
, inthandler
);
512 signal( SIGQUIT
, inthandler
);
513 signal( SIGPIPE
, SIG_IGN
);
516 while( vg_argp( argc
, argv
) ){
517 if( vg_long_opt( "noauth" ) )
518 gameserver
.auth_mode
= eServerModeNoAuthentication
;
521 /* TODO: Options to override, ammend, remove etc */
523 vg_set_mem_quota( 80*1024*1024 );
526 highscores_init( 250000, 10000 );
528 if( !highscores_read() )
529 highscores_create_db();
531 steamworks_ensure_txt( "2103940" );
533 if( gameserver
.auth_mode
== eServerModeAuthentication
){
534 if( !vg_load_steam_symetric_key( "application_key",
535 gameserver
.app_symmetric_key
)){
540 vg_warn( "Running without user authentication.\n" );
543 if( !SteamGameServer_Init( 0, 27400, 27401,
544 gameserver
.auth_mode
, "1.0.0.0" ) ){
545 vg_error( "SteamGameServer_Init failed\n" );
549 void *hSteamGameServer
= SteamAPI_SteamGameServer();
550 SteamAPI_ISteamGameServer_LogOnAnonymous( hSteamGameServer
);
552 SteamAPI_ManualDispatch_Init();
553 HSteamPipe hsteampipe
= SteamGameServer_GetHSteamPipe();
555 //hSteamHTTP = SteamAPI_SteamGameServerHTTP();
556 hSteamNetworkingSockets
=
557 SteamAPI_SteamGameServerNetworkingSockets_SteamAPI();
563 steam_register_callback( k_iSteamNetAuthenticationStatus
, on_auth_status
);
564 steam_register_callback( k_iSteamNetConnectionStatusChangedCallBack
,
567 vg_success( "Steamworks API running\n" );
568 steamworks_event_loop( hsteampipe
);
574 HSteamListenSocket listener
;
575 SteamNetworkingIPAddr localAddr
;
576 SteamAPI_SteamNetworkingIPAddr_Clear( &localAddr
);
577 localAddr
.m_port
= 27402;
579 listener
= SteamAPI_ISteamNetworkingSockets_CreateListenSocketIP(
580 hSteamNetworkingSockets
, &localAddr
, 0, NULL
);
581 gameserver
.client_group
= SteamAPI_ISteamNetworkingSockets_CreatePollGroup(
582 hSteamNetworkingSockets
);
584 u64 server_ticks
= 8000,
585 last_record_save
= 8000,
586 last_scoreboard_gen
= 0,
587 last_monitor_heartbeat
= 0;
590 monitor_start_server();
593 monitor_event_loop();
594 steamworks_event_loop( hsteampipe
);
601 (last_monitor_heartbeat
+ seconds_to_server_ticks(10.0))){
602 last_monitor_heartbeat
= server_ticks
;
606 if( server_ticks
> last_scoreboard_gen
+ seconds_to_server_ticks(60.0) ){
607 last_scoreboard_gen
= server_ticks
;
611 if( server_ticks
> last_record_save
+ seconds_to_server_ticks(10.0*60.0)){
612 last_record_save
= server_ticks
;
613 highscores_serialize_all();
617 highscores_serialize_all();
619 SteamAPI_ISteamNetworkingSockets_DestroyPollGroup( hSteamNetworkingSockets
,
620 gameserver
.client_group
);
621 SteamAPI_ISteamNetworkingSockets_CloseListenSocket(
622 hSteamNetworkingSockets
, listener
);
624 vg_info( "Shutting down\n..." );
625 SteamGameServer_Shutdown();