X-Git-Url: http://git.xonotic.org/?a=blobdiff_plain;f=netconn.c;h=916dc6885ea85bd2e9834db53823bc06692b4a35;hb=f991f593b4e0aadd992f25c9ae5649532204dabc;hp=22f4e749d9f8ec55c7584d47e3010ac8a0b059cb;hpb=e7b5029b4590cf57fdc7a6d7b288b102efb06400;p=xonotic%2Fdarkplaces.git diff --git a/netconn.c b/netconn.c index 22f4e749..916dc688 100755 --- a/netconn.c +++ b/netconn.c @@ -27,7 +27,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. #define DPMASTER_PORT 27950 // note this defaults on for dedicated servers, off for listen servers -cvar_t sv_public = {0, "sv_public", "0", "advertises this server on the master server (so that players can find it in the server browser)"}; +cvar_t sv_public = {0, "sv_public", "0", "1: advertises this server on the master server (so that players can find it in the server browser); 0: allow direct queries only; -1: do not respond to direct queries; -2: do not allow anyone to connect"}; static cvar_t sv_heartbeatperiod = {CVAR_SAVE, "sv_heartbeatperiod", "120", "how often to send heartbeat in seconds (only used if sv_public is 1)"}; static cvar_t sv_masters [] = @@ -38,8 +38,7 @@ static cvar_t sv_masters [] = {CVAR_SAVE, "sv_master4", "", "user-chosen master server 4"}, {0, "sv_masterextra1", "ghdigital.com", "default master server 1 (admin: LordHavoc)"}, // admin: LordHavoc {0, "sv_masterextra2", "dpmaster.deathmask.net", "default master server 2 (admin: Willis)"}, // admin: Willis - {0, "sv_masterextra3", "12.166.196.192", "default master server 3 (admin: Venim)"}, // admin: Venim - {0, "sv_masterextra4", "excalibur.nvg.ntnu.no", "default master server 4 (admin: tChr)"}, // admin: tChr + {0, "sv_masterextra3", "excalibur.nvg.ntnu.no", "default master server 3 (admin: tChr)"}, // admin: tChr {0, NULL, NULL, NULL} }; @@ -71,13 +70,14 @@ sizebuf_t net_message; static unsigned char net_message_buf[NET_MAXMESSAGE]; cvar_t net_messagetimeout = {0, "net_messagetimeout","300", "drops players who have not sent any packets for this many seconds"}; -cvar_t net_messagerejointimeout = {0, "net_messagerejointimeout","10", "give a player this much time in seconds to rejoin and continue playing (not losing frags and such)"}; cvar_t net_connecttimeout = {0, "net_connecttimeout","10", "after requesting a connection, the client must reply within this many seconds or be dropped (cuts down on connect floods)"}; +cvar_t net_connectfloodblockingtimeout = {0, "net_connectfloodblockingtimeout", "5", "when a connection packet is received, it will block all future connect packets from that IP address for this many seconds (cuts down on connect floods)"}; cvar_t hostname = {CVAR_SAVE, "hostname", "UNNAMED", "server message to show in server browser"}; cvar_t developer_networking = {0, "developer_networking", "0", "prints all received and sent packets (recommended only for debugging)"}; cvar_t cl_netlocalping = {0, "cl_netlocalping","0", "lags local loopback connection by this much ping time (useful to play more fairly on your own server with people with higher pings)"}; -static cvar_t cl_netpacketloss = {0, "cl_netpacketloss","0", "drops this percentage of packets (incoming and outgoing), useful for testing network protocol robustness (effects failing to start, sounds failing to play, etc)"}; +static cvar_t cl_netpacketloss_send = {0, "cl_netpacketloss_send","0", "drops this percentage of outgoing packets, useful for testing network protocol robustness (jerky movement, prediction errors, etc)"}; +static cvar_t cl_netpacketloss_receive = {0, "cl_netpacketloss_receive","0", "drops this percentage of incoming packets, useful for testing network protocol robustness (jerky movement, effects failing to start, sounds failing to play, etc)"}; static cvar_t net_slist_queriespersecond = {0, "net_slist_queriespersecond", "20", "how many server information requests to send per second"}; static cvar_t net_slist_queriesperframe = {0, "net_slist_queriesperframe", "4", "maximum number of server information requests to send each rendered frame (guards against low framerates causing problems)"}; static cvar_t net_slist_timeout = {0, "net_slist_timeout", "4", "how long to listen for a server information response before giving up"}; @@ -126,6 +126,10 @@ cvar_t sv_netport = {0, "port", "26000", "server port for players to connect to" cvar_t net_address = {0, "net_address", "0.0.0.0", "network address to open ports on"}; //cvar_t net_netaddress_ipv6 = {0, "net_address_ipv6", "[0:0:0:0:0:0:0:0]", "network address to open ipv6 ports on"}; +char net_extresponse[NET_EXTRESPONSE_MAX][1400]; +int net_extresponse_count = 0; +int net_extresponse_last = 0; + // ServerList interface serverlist_mask_t serverlist_andmasks[SERVERLIST_ANDMASKCOUNT]; serverlist_mask_t serverlist_ormasks[SERVERLIST_ORMASKCOUNT]; @@ -181,6 +185,12 @@ static qboolean _ServerList_Entry_Compare( serverlist_entry_t *A, serverlist_ent case SLIF_NUMPLAYERS: result = A->info.numplayers - B->info.numplayers; break; + case SLIF_NUMBOTS: + result = A->info.numbots - B->info.numbots; + break; + case SLIF_NUMHUMANS: + result = A->info.numhumans - B->info.numhumans; + break; case SLIF_PROTOCOL: result = A->info.protocol - B->info.protocol; break; @@ -282,6 +292,10 @@ static qboolean _ServerList_Entry_Mask( serverlist_mask_t *mask, serverlist_info return false; if( !_ServerList_CompareInt( info->numplayers, mask->tests[SLIF_NUMPLAYERS], mask->info.numplayers ) ) return false; + if( !_ServerList_CompareInt( info->numbots, mask->tests[SLIF_NUMBOTS], mask->info.numbots ) ) + return false; + if( !_ServerList_CompareInt( info->numhumans, mask->tests[SLIF_NUMHUMANS], mask->info.numhumans ) ) + return false; if( !_ServerList_CompareInt( info->protocol, mask->tests[SLIF_PROTOCOL], mask->info.protocol )) return false; if( *mask->info.cname @@ -379,8 +393,15 @@ void ServerList_RebuildViewList(void) void ServerList_ResetMasks(void) { + int i; + memset( &serverlist_andmasks, 0, sizeof( serverlist_andmasks ) ); memset( &serverlist_ormasks, 0, sizeof( serverlist_ormasks ) ); + // numbots needs to be compared to -1 to always succeed + for(i = 0; i < SERVERLIST_ANDMASKCOUNT; ++i) + serverlist_andmasks[i].info.numbots = -1; + for(i = 0; i < SERVERLIST_ORMASKCOUNT; ++i) + serverlist_ormasks[i].info.numbots = -1; } #if 0 @@ -401,8 +422,7 @@ static void _ServerList_Test(void) void ServerList_QueryList(qboolean querydp, qboolean queryqw) { - //masterquerytime = realtime; - masterquerytime = Sys_DoubleTime(); + masterquerytime = realtime; masterquerycount = 0; masterreplycount = 0; serverquerycount = 0; @@ -424,9 +444,9 @@ int NetConn_Read(lhnetsocket_t *mysocket, void *data, int maxlength, lhnetaddres int i; if (length == 0) return 0; - if (cl_netpacketloss.integer) + if (cl_netpacketloss_receive.integer) for (i = 0;i < cl_numsockets;i++) - if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss.integer) + if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_receive.integer) return 0; if (developer_networking.integer) { @@ -448,9 +468,9 @@ int NetConn_Write(lhnetsocket_t *mysocket, const void *data, int length, const l { int ret; int i; - if (cl_netpacketloss.integer) + if (cl_netpacketloss_send.integer) for (i = 0;i < cl_numsockets;i++) - if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss.integer) + if (cl_sockets[i] == mysocket && (rand() % 100) < cl_netpacketloss_send.integer) return length; ret = LHNET_Write(mysocket, data, length, peeraddress); if (developer_networking.integer) @@ -470,8 +490,31 @@ int NetConn_WriteString(lhnetsocket_t *mysocket, const char *string, const lhnet return NetConn_Write(mysocket, string, (int)strlen(string), peeraddress); } -int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol) +qboolean NetConn_CanSend(netconn_t *conn) +{ + conn->outgoing_packetcounter = (conn->outgoing_packetcounter + 1) % NETGRAPH_PACKETS; + conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET; + conn->outgoing_reliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET; + conn->outgoing_acksize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET; + if (realtime > conn->cleartime) + return true; + else + { + conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_CHOKEDPACKET; + return false; + } +} + +int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolversion_t protocol, int rate) { + int totallen = 0; + + // if this packet was supposedly choked, but we find ourselves sending one + // anyway, make sure the size counting starts at zero + // (this mostly happens on level changes and disconnects and such) + if (conn->outgoing_unreliablesize[conn->outgoing_packetcounter] == NETGRAPH_CHOKEDPACKET) + conn->outgoing_unreliablesize[conn->outgoing_packetcounter] = NETGRAPH_NOPACKET; + if (protocol == PROTOCOL_QUAKEWORLD) { int packetLen; @@ -512,16 +555,22 @@ int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolvers Con_Printf ("NetConn_SendUnreliableMessage: reliable message too big %u\n", data->cursize); return -1; } + + conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen; + // add the reliable message if there is one if (sendreliable) { + conn->outgoing_reliablesize[conn->outgoing_packetcounter] += conn->sendMessageLength; memcpy(sendbuffer + packetLen, conn->sendMessage, conn->sendMessageLength); packetLen += conn->sendMessageLength; conn->qw.last_reliable_sequence = conn->qw.outgoing_sequence; } + // add the unreliable message if possible if (packetLen + data->cursize <= 1400) { + conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += data->cursize; memcpy(sendbuffer + packetLen, data->data, data->cursize); packetLen += data->cursize; } @@ -531,10 +580,7 @@ int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolvers packetsSent++; unreliableMessagesSent++; - // delay later packets to obey rate limit - conn->qw.cleartime = max(conn->qw.cleartime, realtime) + packetLen * conn->qw.rate; - - return 0; + totallen += packetLen + 28; } else { @@ -564,11 +610,15 @@ int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolvers header[1] = BigLong(conn->nq.sendSequence - 1); memcpy(sendbuffer + NET_HEADERSIZE, conn->sendMessage, dataLen); + conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen; + if (NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress) == (int)packetLen) { conn->lastSendTime = realtime; packetsReSent++; } + + totallen += packetLen + 28; } // if we have a new reliable message to send, do so @@ -576,7 +626,7 @@ int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolvers { if (conn->message.cursize > (int)sizeof(conn->sendMessage)) { - Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, sizeof(conn->sendMessage)); + Con_Printf("NetConn_SendUnreliableMessage: reliable message too big (%u > %u)\n", conn->message.cursize, (int)sizeof(conn->sendMessage)); conn->message.overflowed = true; return -1; } @@ -611,15 +661,19 @@ int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolvers conn->nq.sendSequence++; + conn->outgoing_reliablesize[conn->outgoing_packetcounter] += packetLen; + NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress); conn->lastSendTime = realtime; packetsSent++; reliableMessagesSent++; + + totallen += packetLen + 28; } // if we have an unreliable message to send, do so - if (data->cursize) + //if (data->cursize) { packetLen = NET_HEADERSIZE + data->cursize; @@ -636,13 +690,25 @@ int NetConn_SendUnreliableMessage(netconn_t *conn, sizebuf_t *data, protocolvers conn->nq.unreliableSendSequence++; + conn->outgoing_unreliablesize[conn->outgoing_packetcounter] += packetLen; + NetConn_Write(conn->mysocket, (void *)&sendbuffer, packetLen, &conn->peeraddress); packetsSent++; unreliableMessagesSent++; + + totallen += packetLen + 28; } - return 0; } + + // delay later packets to obey rate limit + if (conn->cleartime < realtime - 0.1) + conn->cleartime = realtime - 0.1; + conn->cleartime = conn->cleartime + (double)totallen / (double)rate; + if (conn->cleartime < realtime) + conn->cleartime = realtime; + + return 0; } void NetConn_CloseClientPorts(void) @@ -787,10 +853,15 @@ netconn_t *NetConn_Open(lhnetsocket_t *mysocket, lhnetaddress_t *peeraddress) return conn; } +void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress); void NetConn_Close(netconn_t *conn) { netconn_t *c; // remove connection from list + + // allow the client to reconnect immediately + NetConn_ClearConnectFlood(&(conn->peeraddress)); + if (conn == netconn_list) netconn_list = conn->next; else @@ -841,8 +912,9 @@ void NetConn_UpdateSockets(void) } } -static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol) +static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int length, protocolversion_t protocol, double newtimeout) { + int originallength = length; if (length < 8) return 0; @@ -876,15 +948,26 @@ static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int len sequence_ack &= ~(1<<31); if (sequence <= conn->qw.incoming_sequence) { - Con_DPrint("Got a stale datagram\n"); + //Con_DPrint("Got a stale datagram\n"); return 0; } count = sequence - (conn->qw.incoming_sequence + 1); if (count > 0) { droppedDatagrams += count; - Con_DPrintf("Dropped %u datagram(s)\n", count); + //Con_DPrintf("Dropped %u datagram(s)\n", count); + while (count--) + { + conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS; + conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET; + conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET; + conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET; + } } + conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS; + conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength; + conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET; + conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET; if (reliable_ack == conn->qw.reliable_sequence) { // received, now we will be able to send another reliable message @@ -899,7 +982,7 @@ static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int len if (reliable_message) conn->qw.incoming_reliable_sequence ^= 1; conn->lastMessageTime = realtime; - conn->timeout = realtime + net_messagetimeout.value; + conn->timeout = realtime + newtimeout; unreliableMessagesReceived++; SZ_Clear(&net_message); SZ_Write(&net_message, data, length); @@ -931,11 +1014,22 @@ static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int len { count = sequence - conn->nq.unreliableReceiveSequence; droppedDatagrams += count; - Con_DPrintf("Dropped %u datagram(s)\n", count); + //Con_DPrintf("Dropped %u datagram(s)\n", count); + while (count--) + { + conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS; + conn->incoming_unreliablesize[conn->incoming_packetcounter] = NETGRAPH_LOSTPACKET; + conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET; + conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET; + } } + conn->incoming_packetcounter = (conn->incoming_packetcounter + 1) % NETGRAPH_PACKETS; + conn->incoming_unreliablesize[conn->incoming_packetcounter] = originallength; + conn->incoming_reliablesize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET; + conn->incoming_acksize[conn->incoming_packetcounter] = NETGRAPH_NOPACKET; conn->nq.unreliableReceiveSequence = sequence + 1; conn->lastMessageTime = realtime; - conn->timeout = realtime + net_messagetimeout.value; + conn->timeout = realtime + newtimeout; unreliableMessagesReceived++; if (length > 0) { @@ -945,12 +1039,13 @@ static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int len return 2; } } - else - Con_DPrint("Got a stale datagram\n"); + //else + // Con_DPrint("Got a stale datagram\n"); return 1; } else if (flags & NETFLAG_ACK) { + conn->incoming_acksize[conn->incoming_packetcounter] += originallength; if (sequence == (conn->nq.sendSequence - 1)) { if (sequence == conn->nq.ackSequence) @@ -959,7 +1054,7 @@ static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int len if (conn->nq.ackSequence != conn->nq.sendSequence) Con_DPrint("ack sequencing error\n"); conn->lastMessageTime = realtime; - conn->timeout = realtime + net_messagetimeout.value; + conn->timeout = realtime + newtimeout; if (conn->sendMessageLength > MAX_PACKETFRAGMENT) { unsigned int packetLen; @@ -999,23 +1094,25 @@ static int NetConn_ReceivedMessage(netconn_t *conn, unsigned char *data, int len else conn->sendMessageLength = 0; } - else - Con_DPrint("Duplicate ACK received\n"); + //else + // Con_DPrint("Duplicate ACK received\n"); } - else - Con_DPrint("Stale ACK received\n"); + //else + // Con_DPrint("Stale ACK received\n"); return 1; } else if (flags & NETFLAG_DATA) { unsigned int temppacket[2]; + conn->incoming_reliablesize[conn->incoming_packetcounter] += originallength; + conn->outgoing_acksize[conn->outgoing_packetcounter] += 8; temppacket[0] = BigLong(8 | NETFLAG_ACK); temppacket[1] = BigLong(sequence); NetConn_Write(conn->mysocket, (unsigned char *)temppacket, 8, &conn->peeraddress); if (sequence == conn->nq.receiveSequence) { conn->lastMessageTime = realtime; - conn->timeout = realtime + net_messagetimeout.value; + conn->timeout = realtime + newtimeout; conn->nq.receiveSequence++; if( conn->receiveMessageLength + length <= (int)sizeof( conn->receiveMessage ) ) { memcpy(conn->receiveMessage + conn->receiveMessageLength, data, length); @@ -1067,8 +1164,23 @@ void NetConn_ConnectionEstablished(lhnetsocket_t *mysocket, lhnetaddress_t *peer cls.state = ca_connected; cls.signon = 0; // need all the signon messages before playing cls.protocol = initialprotocol; + // reset move sequence numbering on this new connection + cls.movesequence = 1; + cls.servermovesequence = 0; if (cls.protocol == PROTOCOL_QUAKEWORLD) Cmd_ForwardStringToServer("new"); + if (cls.protocol == PROTOCOL_QUAKE) + { + // write a keepalive (clc_nop) as it seems to greatly improve the + // chances of connecting to a netquake server + sizebuf_t msg; + unsigned char buf[4]; + memset(&msg, 0, sizeof(msg)); + msg.data = buf; + msg.maxsize = sizeof(buf); + MSG_WriteChar(&msg, clc_nop); + NetConn_SendUnreliableMessage(cls.netcon, &msg, cls.protocol, 10000); + } } int NetConn_IsLocalGame(void) @@ -1099,8 +1211,7 @@ static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *address // store the data the engine cares about (address and ping) strlcpy(serverlist_cache[serverlist_cachecount].info.cname, addressstring, sizeof(serverlist_cache[serverlist_cachecount].info.cname)); serverlist_cache[serverlist_cachecount].info.ping = 100000; - //serverlist_cache[serverlist_cachecount].querytime = realtime; - serverlist_cache[serverlist_cachecount].querytime = Sys_DoubleTime(); + serverlist_cache[serverlist_cachecount].querytime = realtime; // if not in the slist menu we should print the server to console if (serverlist_consoleoutput) Con_Printf("querying %s\n", addressstring); @@ -1109,7 +1220,7 @@ static int NetConn_ClientParsePacket_ServerList_ProcessReply(const char *address // if this is the first reply from this server, count it as having replied if (serverlist_cache[n].info.ping == 100000) serverreplycount++; - pingtime = (int)((Sys_DoubleTime() - serverlist_cache[n].querytime) * 1000.0 + 0.5); + pingtime = (int)((realtime - serverlist_cache[n].querytime) * 1000.0 + 0.5); pingtime = bound(0, pingtime, 9999); // update the ping serverlist_cache[n].info.ping = min(serverlist_cache[n].info.ping, pingtime); @@ -1121,7 +1232,7 @@ static void NetConn_ClientParsePacket_ServerList_UpdateCache(int n) { serverlist_info_t *info = &serverlist_cache[n].info; // update description strings for engine menu and console output - dpsnprintf(serverlist_cache[n].line1, sizeof(serverlist_cache[n].line1), "^%c%5d^7 ^%c%3u^7/%3u %-65.65s", info->ping >= 300 ? '1' : (info->ping >= 200 ? '3' : '7'), (int)info->ping, ((info->numplayers > 0 && info->numplayers < info->maxplayers) ? (info->numplayers >= 4 ? '7' : '3') : '1'), info->numplayers, info->maxplayers, info->name); + dpsnprintf(serverlist_cache[n].line1, sizeof(serverlist_cache[n].line1), "^%c%5d^7 ^%c%3u^7/%3u %-65.65s", info->ping >= 300 ? '1' : (info->ping >= 200 ? '3' : '7'), (int)info->ping, ((info->numhumans > 0 && info->numhumans < info->maxplayers) ? (info->numhumans >= 4 ? '7' : '3') : '1'), info->numplayers, info->maxplayers, info->name); dpsnprintf(serverlist_cache[n].line2, sizeof(serverlist_cache[n].line2), "^4%-21.21s %-19.19s ^%c%-17.17s^4 %-20.20s", info->cname, info->game, (info->gameversion != gameversion.integer) ? '1' : '4', info->mod, info->map); if (serverlist_cache[n].query == SQS_QUERIED) ServerList_ViewList_Remove(&serverlist_cache[n]); @@ -1207,14 +1318,25 @@ static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *dat return true; info = &serverlist_cache[n].info; - if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game));else info->game[0] = 0; - if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod ));else info->mod[0] = 0; - if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map ));else info->map[0] = 0; - if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name));else info->name[0] = 0; - if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s);else info->protocol = -1; - if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s);else info->numplayers = 0; - if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s);else info->maxplayers = 0; - if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s);else info->gameversion = 0; + info->game[0] = 0; + info->mod[0] = 0; + info->map[0] = 0; + info->name[0] = 0; + info->protocol = -1; + info->numplayers = 0; + info->numbots = -1; + info->maxplayers = 0; + info->gameversion = 0; + if ((s = SearchInfostring(string, "gamename" )) != NULL) strlcpy(info->game, s, sizeof (info->game)); + if ((s = SearchInfostring(string, "modname" )) != NULL) strlcpy(info->mod , s, sizeof (info->mod )); + if ((s = SearchInfostring(string, "mapname" )) != NULL) strlcpy(info->map , s, sizeof (info->map )); + if ((s = SearchInfostring(string, "hostname" )) != NULL) strlcpy(info->name, s, sizeof (info->name)); + if ((s = SearchInfostring(string, "protocol" )) != NULL) info->protocol = atoi(s); + if ((s = SearchInfostring(string, "clients" )) != NULL) info->numplayers = atoi(s); + if ((s = SearchInfostring(string, "bots" )) != NULL) info->numbots = atoi(s); + if ((s = SearchInfostring(string, "sv_maxclients")) != NULL) info->maxplayers = atoi(s); + if ((s = SearchInfostring(string, "gameversion" )) != NULL) info->gameversion = atoi(s); + info->numhumans = info->numplayers - max(0, info->numbots); NetConn_ClientParsePacket_ServerList_UpdateCache(n); @@ -1310,6 +1432,15 @@ static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *dat serverlist_querywaittime = realtime + 3; return true; } + if (!strncmp(string, "extResponse ", 12)) + { + ++net_extresponse_count; + if(net_extresponse_count > NET_EXTRESPONSE_MAX) + net_extresponse_count = NET_EXTRESPONSE_MAX; + net_extresponse_last = (net_extresponse_last + 1) % NET_EXTRESPONSE_MAX; + dpsnprintf(net_extresponse[net_extresponse_last], sizeof(net_extresponse[net_extresponse_last]), "'%s' %s", addressstring2, string + 12); + return true; + } if (!strncmp(string, "ping", 4)) { if (developer.integer >= 10) @@ -1394,7 +1525,7 @@ static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *dat return true; } // quakeworld ingame packet - if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol)) == 2) + if (fromserver && cls.protocol == PROTOCOL_QUAKEWORLD && length >= 8 && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2) { ret = 0; CL_ParseServerMessage(); @@ -1406,9 +1537,12 @@ static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *dat int n; serverlist_info_t *info; - c = data[4]; - data += 5; - length -= 5; + data += 4; + length -= 4; + SZ_Clear(&net_message); + SZ_Write(&net_message, data, length); + MSG_BeginReading(); + c = MSG_ReadByte(); switch (c) { case CCREP_ACCEPT: @@ -1418,16 +1552,10 @@ static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *dat { lhnetaddress_t clientportaddress; clientportaddress = *peeraddress; - if (length >= 4) - { - unsigned int port = (data[0] << 0) | (data[1] << 8) | (data[2] << 16) | (data[3] << 24); - data += 4; - length -= 4; - LHNETADDRESS_SetPort(&clientportaddress, port); - } - M_Update_Return_Reason("Accepted"); + LHNETADDRESS_SetPort(&clientportaddress, MSG_ReadLong()); // update the server IP in the userinfo (QW servers expect this, and it is used by the reconnect command) InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), "*ip", addressstring2); + M_Update_Return_Reason("Accepted"); NetConn_ConnectionEstablished(mysocket, &clientportaddress, PROTOCOL_QUAKE); } break; @@ -1435,9 +1563,8 @@ static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *dat if (developer.integer >= 10) Con_Printf("Datagram_ParseConnectionless: received CCREP_REJECT from %s.\n", addressstring2); cls.connect_trying = false; - M_Update_Return_Reason((char *)data); + M_Update_Return_Reason((char *)MSG_ReadString()); break; - // TODO: fix this code so that lan searches for quake servers will work case CCREP_SERVER_INFO: if (developer.integer >= 10) Con_Printf("Datagram_ParseConnectionless: received CCREP_SERVER_INFO from %s.\n", addressstring2); @@ -1474,12 +1601,13 @@ static int NetConn_ClientParsePacket(lhnetsocket_t *mysocket, unsigned char *dat default: break; } + SZ_Clear(&net_message); // we may not have liked the packet, but it was a valid control // packet, so we're done processing this packet now return true; } ret = 0; - if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol)) == 2) + if (fromserver && length >= (int)NET_HEADERSIZE && (ret = NetConn_ReceivedMessage(cls.netcon, data, length, cls.protocol, net_messagetimeout.value)) == 2) CL_ParseServerMessage(); return ret; } @@ -1545,8 +1673,7 @@ void NetConn_QueryQueueFrame(void) NetConn_WriteString(cl_sockets[socket], "\377\377\377\377getinfo", &address); } - //entry->querytime = realtime; - entry->querytime = Sys_DoubleTime(); + entry->querytime = realtime; entry->querycounter++; // if not in the slist menu we should print the server to console @@ -1630,24 +1757,30 @@ static void NetConn_BuildChallengeString(char *buffer, int bufferlength) static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg, size_t out_size, qboolean fullstatus) { - unsigned int nb_clients = 0, i; + unsigned int nb_clients = 0, nb_bots = 0, i; int length; // How many clients are there? for (i = 0;i < (unsigned int)svs.maxclients;i++) + { if (svs.clients[i].active) + { nb_clients++; + if (!svs.clients[i].netconnection) + nb_bots++; + } + } // TODO: we should add more information for the full status string length = dpsnprintf(out_msg, out_size, "\377\377\377\377%s\x0A" "\\gamename\\%s\\modname\\%s\\gameversion\\%d\\sv_maxclients\\%d" - "\\clients\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d" + "\\clients\\%d\\bots\\%d\\mapname\\%s\\hostname\\%s\\protocol\\%d" "%s%s" "%s", fullstatus ? "statusResponse" : "infoResponse", gamename, com_modname, gameversion.integer, svs.maxclients, - nb_clients, sv.name, hostname.string, NET_PROTOCOL_VERSION, + nb_clients, nb_bots, sv.name, hostname.string, NET_PROTOCOL_VERSION, challenge ? "\\challenge\\" : "", challenge ? challenge : "", fullstatus ? "\n" : ""); @@ -1668,7 +1801,7 @@ static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg client_t *cl = &svs.clients[i]; if (cl->active) { - int nameind, cleanind; + int nameind, cleanind, pingvalue; char curchar; char cleanname [sizeof(cl->name)]; @@ -1686,9 +1819,14 @@ static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg } } while (curchar != '\0'); + pingvalue = (int)(cl->ping * 1000.0f); + if(cl->netconnection) + pingvalue = bound(1, pingvalue, 9999); + else + pingvalue = 0; length = dpsnprintf(ptr, left, "%d %d \"%s\"\n", cl->frags, - (int)(cl->ping * 1000.0f), + pingvalue, cleanname); if(length < 0) return false; @@ -1701,14 +1839,74 @@ static qboolean NetConn_BuildStatusResponse(const char* challenge, char* out_msg return true; } +static qboolean NetConn_PreventConnectFlood(lhnetaddress_t *peeraddress) +{ + int floodslotnum, bestfloodslotnum; + double bestfloodtime; + lhnetaddress_t noportpeeraddress; + // see if this is a connect flood + noportpeeraddress = *peeraddress; + LHNETADDRESS_SetPort(&noportpeeraddress, 0); + bestfloodslotnum = 0; + bestfloodtime = sv.connectfloodaddresses[bestfloodslotnum].lasttime; + for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++) + { + if (bestfloodtime >= sv.connectfloodaddresses[floodslotnum].lasttime) + { + bestfloodtime = sv.connectfloodaddresses[floodslotnum].lasttime; + bestfloodslotnum = floodslotnum; + } + if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0) + { + // this address matches an ongoing flood address + if (realtime < sv.connectfloodaddresses[floodslotnum].lasttime + net_connectfloodblockingtimeout.value) + { + // renew the ban on this address so it does not expire + // until the flood has subsided + sv.connectfloodaddresses[floodslotnum].lasttime = realtime; + //Con_Printf("Flood detected!\n"); + return true; + } + // the flood appears to have subsided, so allow this + bestfloodslotnum = floodslotnum; // reuse the same slot + break; + } + } + // begin a new timeout on this address + sv.connectfloodaddresses[bestfloodslotnum].address = noportpeeraddress; + sv.connectfloodaddresses[bestfloodslotnum].lasttime = realtime; + //Con_Printf("Flood detection initiated!\n"); + return false; +} + +void NetConn_ClearConnectFlood(lhnetaddress_t *peeraddress) +{ + int floodslotnum; + lhnetaddress_t noportpeeraddress; + // see if this is a connect flood + noportpeeraddress = *peeraddress; + LHNETADDRESS_SetPort(&noportpeeraddress, 0); + for (floodslotnum = 0;floodslotnum < MAX_CONNECTFLOODADDRESSES;floodslotnum++) + { + if (sv.connectfloodaddresses[floodslotnum].lasttime && LHNETADDRESS_Compare(&noportpeeraddress, &sv.connectfloodaddresses[floodslotnum].address) == 0) + { + // this address matches an ongoing flood address + // remove the ban + sv.connectfloodaddresses[floodslotnum].address.addresstype = LHNETADDRESSTYPE_NONE; + sv.connectfloodaddresses[floodslotnum].lasttime = 0; + //Con_Printf("Flood cleared!\n"); + } + } +} + extern void SV_SendServerinfo (client_t *client); static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *data, int length, lhnetaddress_t *peeraddress) { int i, ret, clientnum, best; double besttime; client_t *client; - netconn_t *conn; char *s, *string, response[1400], addressstring2[128], stringbuf[16384]; + qboolean islocal = (LHNETADDRESS_GetAddressType(peeraddress) == LHNETADDRESSTYPE_LOOP); if (!sv.active) return false; @@ -1742,7 +1940,7 @@ static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *dat Com_HexDumpToConsole(data, length); } - if (length >= 12 && !memcmp(string, "getchallenge", 12)) + if (length >= 12 && !memcmp(string, "getchallenge", 12) && (islocal || sv_public.integer > -2)) { for (i = 0, best = 0, besttime = realtime;i < MAX_CHALLENGES;i++) { @@ -1764,88 +1962,90 @@ static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *dat NetConn_WriteString(mysocket, va("\377\377\377\377challenge %s", challenge[i].string), peeraddress); return true; } - if (length > 8 && !memcmp(string, "connect\\", 8)) + if (length > 8 && !memcmp(string, "connect\\", 8) && (islocal || sv_public.integer > -2)) { string += 7; length -= 7; - if ((s = SearchInfostring(string, "challenge"))) + + if (!(s = SearchInfostring(string, "challenge"))) + return true; + // validate the challenge + for (i = 0;i < MAX_CHALLENGES;i++) + if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s)) + break; + // if the challenge is not recognized, drop the packet + if (i == MAX_CHALLENGES) + return true; + + // check engine protocol + if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3")) { - // validate the challenge - for (i = 0;i < MAX_CHALLENGES;i++) - if (!LHNETADDRESS_Compare(peeraddress, &challenge[i].address) && !strcmp(challenge[i].string, s)) - break; - if (i < MAX_CHALLENGES) + if (developer.integer >= 10) + Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2); + NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress); + return true; + } + + // see if this is a duplicate connection request or a disconnected + // client who is rejoining to the same client slot + for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++) + { + if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0) { - // check engine protocol - if (strcmp(SearchInfostring(string, "protocol"), "darkplaces 3")) + // this is a known client... + if (client->spawned) { + // client crashed and is coming back, + // keep their stuff intact if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: sending \"reject Wrong game protocol.\" to %s.\n", addressstring2); - NetConn_WriteString(mysocket, "\377\377\377\377reject Wrong game protocol.", peeraddress); + Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", addressstring2); + NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress); + SV_VM_Begin(); + SV_SendServerinfo(client); + SV_VM_End(); } else { - // see if this is a duplicate connection request - for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++) - if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0) - break; - if (clientnum < svs.maxclients && realtime - client->connecttime < net_messagerejointimeout.value) - { - // client is still trying to connect, - // so we send a duplicate reply - if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2); - NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress); - } -#if 0 - else if (clientnum < svs.maxclients) - { - if (realtime - client->netconnection->lastMessageTime >= net_messagerejointimeout.value) - { - // client crashed and is coming back, keep their stuff intact - SV_SendServerinfo(client); - //host_client = client; - //SV_DropClient (true); - } - // else ignore them - } -#endif - else - { - // this is a new client, find a slot - for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++) - if (!client->active) - break; - if (clientnum < svs.maxclients) - { - // prepare the client struct - if ((conn = NetConn_Open(mysocket, peeraddress))) - { - // allocated connection - if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address); - NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress); - // now set up the client - SV_VM_Begin(); - SV_ConnectClient(clientnum, conn); - SV_VM_End(); - NetConn_Heartbeat(1); - } - } - else - { - // server is full - if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2); - NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress); - } - } + // client is still trying to connect, + // so we send a duplicate reply + if (developer.integer >= 10) + Con_Printf("Datagram_ParseConnectionless: sending duplicate accept to %s.\n", addressstring2); + NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress); } + return true; } } + + if (NetConn_PreventConnectFlood(peeraddress)) + return true; + + // find an empty client slot for this new client + for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++) + { + netconn_t *conn; + if (!client->active && (conn = NetConn_Open(mysocket, peeraddress))) + { + // allocated connection + if (developer.integer >= 10) + Con_Printf("Datagram_ParseConnectionless: sending \"accept\" to %s.\n", conn->address); + NetConn_WriteString(mysocket, "\377\377\377\377accept", peeraddress); + // now set up the client + SV_VM_Begin(); + SV_ConnectClient(clientnum, conn); + SV_VM_End(); + NetConn_Heartbeat(1); + return true; + } + } + + // no empty slots found - server is full + if (developer.integer >= 10) + Con_Printf("Datagram_ParseConnectionless: sending \"reject Server is full.\" to %s.\n", addressstring2); + NetConn_WriteString(mysocket, "\377\377\377\377reject Server is full.", peeraddress); + return true; } - if (length >= 7 && !memcmp(string, "getinfo", 7)) + if (length >= 7 && !memcmp(string, "getinfo", 7) && (islocal || sv_public.integer > -1)) { const char *challenge = NULL; @@ -1861,7 +2061,7 @@ static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *dat } return true; } - if (length >= 9 && !memcmp(string, "getstatus", 9)) + if (length >= 9 && !memcmp(string, "getstatus", 9) && (islocal || sv_public.integer > -1)) { const char *challenge = NULL; @@ -1930,213 +2130,229 @@ static int NetConn_ServerParsePacket(lhnetsocket_t *mysocket, unsigned char *dat // we're done processing this packet now return true; } - // LordHavoc: disabled netquake control packet support in server -#if 0 + // netquake control packets, supported for compatibility only, and only + // when running game protocols that are normally served via this connection + // protocol + // (this protects more modern protocols against being used for + // Quake packet flood Denial Of Service attacks) + if (length >= 5 && (i = BigLong(*((int *)data))) && (i & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (i & NETFLAG_LENGTH_MASK) == length && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)) { - int c, control; - // netquake control packets, supported for compatibility only - if (length >= 5 && (control = BigLong(*((int *)data))) && (control & (~NETFLAG_LENGTH_MASK)) == (int)NETFLAG_CTL && (control & NETFLAG_LENGTH_MASK) == length) + int c; + int protocolnumber; + const char *protocolname; + data += 4; + length -= 4; + SZ_Clear(&net_message); + SZ_Write(&net_message, data, length); + MSG_BeginReading(); + c = MSG_ReadByte(); + switch (c) { - c = data[4]; - data += 5; - length -= 5; - switch (c) + case CCREQ_CONNECT: + if (developer.integer >= 10) + Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2); + if(!islocal && sv_public.integer <= -2) + break; + + protocolname = MSG_ReadString(); + protocolnumber = MSG_ReadByte(); + if (strcmp(protocolname, "QUAKE") || protocolnumber != NET_PROTOCOL_VERSION) { - case CCREQ_CONNECT: if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: received CCREQ_CONNECT from %s.\n", addressstring2); - if (length >= (int)strlen("QUAKE") + 1 + 1) + Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2); + SZ_Clear(&net_message); + // save space for the header, filled in later + MSG_WriteLong(&net_message, 0); + MSG_WriteByte(&net_message, CCREP_REJECT); + MSG_WriteString(&net_message, "Incompatible version.\n"); + *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); + NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); + SZ_Clear(&net_message); + break; + } + + // see if this connect request comes from a known client + for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++) + { + if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0) { - if (memcmp(data, "QUAKE", strlen("QUAKE") + 1) != 0 || (int)data[strlen("QUAKE") + 1] != NET_PROTOCOL_VERSION) - { - if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Incompatible version.\" to %s.\n", addressstring2); - SZ_Clear(&net_message); - // save space for the header, filled in later - MSG_WriteLong(&net_message, 0); - MSG_WriteByte(&net_message, CCREP_REJECT); - MSG_WriteString(&net_message, "Incompatible version.\n"); - *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); - NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); - SZ_Clear(&net_message); - } - else + // this is either a duplicate connection request + // or coming back from a timeout + // (if so, keep their stuff intact) + + // send a reply + if (developer.integer >= 10) + Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2); + SZ_Clear(&net_message); + // save space for the header, filled in later + MSG_WriteLong(&net_message, 0); + MSG_WriteByte(&net_message, CCREP_ACCEPT); + MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket))); + *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); + NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); + SZ_Clear(&net_message); + + // if client is already spawned, re-send the + // serverinfo message as they'll need it to play + if (client->spawned) { - // see if this is a duplicate connection request - for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++) - if (client->netconnection && LHNETADDRESS_Compare(peeraddress, &client->netconnection->peeraddress) == 0) - break; - if (clientnum < svs.maxclients) - { - // duplicate connection request - if (realtime - client->connecttime < 2.0) - { - // client is still trying to connect, - // so we send a duplicate reply - if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: sending duplicate CCREP_ACCEPT to %s.\n", addressstring2); - SZ_Clear(&net_message); - // save space for the header, filled in later - MSG_WriteLong(&net_message, 0); - MSG_WriteByte(&net_message, CCREP_ACCEPT); - MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(client->netconnection->mysocket))); - *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); - NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); - SZ_Clear(&net_message); - } -#if 0 - else if (realtime - client->netconnection->lastMessageTime >= net_messagerejointimeout.value) - { - SV_SendServerinfo(client); - // the old client hasn't sent us anything - // in quite a while, so kick off and let - // the retry take care of it... - //host_client = client; - //SV_DropClient (true); - } -#endif - } - else - { - // this is a new client, find a slot - for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++) - if (!client->active) - break; - if (clientnum < svs.maxclients && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL) - { - // connect to the client - // everything is allocated, just fill in the details - strlcpy (conn->address, addressstring2, sizeof (conn->address)); - if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2); - // send back the info about the server connection - SZ_Clear(&net_message); - // save space for the header, filled in later - MSG_WriteLong(&net_message, 0); - MSG_WriteByte(&net_message, CCREP_ACCEPT); - MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket))); - *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); - NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); - SZ_Clear(&net_message); - // now set up the client struct - SV_VM_Begin(); - SV_ConnectClient(clientnum, conn); - SV_VM_End(); - NetConn_Heartbeat(1); - } - else - { - if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2); - // no room; try to let player know - SZ_Clear(&net_message); - // save space for the header, filled in later - MSG_WriteLong(&net_message, 0); - MSG_WriteByte(&net_message, CCREP_REJECT); - MSG_WriteString(&net_message, "Server is full.\n"); - *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); - NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); - SZ_Clear(&net_message); - } - } + SV_VM_Begin(); + SV_SendServerinfo(client); + SV_VM_End(); } + return true; } + } + + // this is a new client, check for connection flood + if (NetConn_PreventConnectFlood(peeraddress)) break; -#if 0 - case CCREQ_SERVER_INFO: - if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2); - if (sv.active && !strcmp(MSG_ReadString(), "QUAKE")) + + // find a slot for the new client + for (clientnum = 0, client = svs.clients;clientnum < svs.maxclients;clientnum++, client++) + { + netconn_t *conn; + if (!client->active && (client->netconnection = conn = NetConn_Open(mysocket, peeraddress)) != NULL) { + // connect to the client + // everything is allocated, just fill in the details + strlcpy (conn->address, addressstring2, sizeof (conn->address)); if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2); + Con_Printf("Datagram_ParseConnectionless: sending CCREP_ACCEPT to %s.\n", addressstring2); + // send back the info about the server connection SZ_Clear(&net_message); // save space for the header, filled in later MSG_WriteLong(&net_message, 0); - MSG_WriteByte(&net_message, CCREP_SERVER_INFO); - UDP_GetSocketAddr(UDP_acceptSock, &newaddr); - MSG_WriteString(&net_message, UDP_AddrToString(&newaddr)); - MSG_WriteString(&net_message, hostname.string); - MSG_WriteString(&net_message, sv.name); - MSG_WriteByte(&net_message, net_activeconnections); - MSG_WriteByte(&net_message, svs.maxclients); - MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION); + MSG_WriteByte(&net_message, CCREP_ACCEPT); + MSG_WriteLong(&net_message, LHNETADDRESS_GetPort(LHNET_AddressFromSocket(conn->mysocket))); *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); SZ_Clear(&net_message); + // now set up the client struct + SV_VM_Begin(); + SV_ConnectClient(clientnum, conn); + SV_VM_End(); + NetConn_Heartbeat(1); + return true; } - break; - case CCREQ_PLAYER_INFO: - if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2); - if (sv.active) - { - int playerNumber, activeNumber, clientNumber; - client_t *client; + } - playerNumber = MSG_ReadByte(); - activeNumber = -1; - for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++) - if (client->active && ++activeNumber == playerNumber) - break; - if (clientNumber != svs.maxclients) - { - SZ_Clear(&net_message); - // save space for the header, filled in later - MSG_WriteLong(&net_message, 0); - MSG_WriteByte(&net_message, CCREP_PLAYER_INFO); - MSG_WriteByte(&net_message, playerNumber); - MSG_WriteString(&net_message, client->name); - MSG_WriteLong(&net_message, client->colors); - MSG_WriteLong(&net_message, (int)client->edict->fields.server->frags); - MSG_WriteLong(&net_message, (int)(realtime - client->connecttime)); - MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient"); - *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); - NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); - SZ_Clear(&net_message); - } - } + if (developer.integer >= 10) + Con_Printf("Datagram_ParseConnectionless: sending CCREP_REJECT \"Server is full.\" to %s.\n", addressstring2); + // no room; try to let player know + SZ_Clear(&net_message); + // save space for the header, filled in later + MSG_WriteLong(&net_message, 0); + MSG_WriteByte(&net_message, CCREP_REJECT); + MSG_WriteString(&net_message, "Server is full.\n"); + *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); + NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); + SZ_Clear(&net_message); + break; + case CCREQ_SERVER_INFO: + if (developer.integer >= 10) + Con_Printf("Datagram_ParseConnectionless: received CCREQ_SERVER_INFO from %s.\n", addressstring2); + if(!islocal && sv_public.integer <= -1) break; - case CCREQ_RULE_INFO: + if (sv.active && !strcmp(MSG_ReadString(), "QUAKE")) + { + int numclients; + char myaddressstring[128]; if (developer.integer >= 10) - Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2); - if (sv.active) - { - char *prevCvarName; - cvar_t *var; - - // find the search start location - prevCvarName = MSG_ReadString(); - var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY); + Con_Printf("Datagram_ParseConnectionless: sending CCREP_SERVER_INFO to %s.\n", addressstring2); + SZ_Clear(&net_message); + // save space for the header, filled in later + MSG_WriteLong(&net_message, 0); + MSG_WriteByte(&net_message, CCREP_SERVER_INFO); + LHNETADDRESS_ToString(LHNET_AddressFromSocket(mysocket), myaddressstring, sizeof(myaddressstring), true); + MSG_WriteString(&net_message, myaddressstring); + MSG_WriteString(&net_message, hostname.string); + MSG_WriteString(&net_message, sv.name); + // How many clients are there? + for (i = 0, numclients = 0;i < svs.maxclients;i++) + if (svs.clients[i].active) + numclients++; + MSG_WriteByte(&net_message, numclients); + MSG_WriteByte(&net_message, svs.maxclients); + MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION); + *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); + NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); + SZ_Clear(&net_message); + } + break; + case CCREQ_PLAYER_INFO: + if (developer.integer >= 10) + Con_Printf("Datagram_ParseConnectionless: received CCREQ_PLAYER_INFO from %s.\n", addressstring2); + if(!islocal && sv_public.integer <= -1) + break; + if (sv.active) + { + int playerNumber, activeNumber, clientNumber; + client_t *client; - // send the response + playerNumber = MSG_ReadByte(); + activeNumber = -1; + for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++) + if (client->active && ++activeNumber == playerNumber) + break; + if (clientNumber != svs.maxclients) + { SZ_Clear(&net_message); // save space for the header, filled in later MSG_WriteLong(&net_message, 0); - MSG_WriteByte(&net_message, CCREP_RULE_INFO); - if (var) - { - MSG_WriteString(&net_message, var->name); - MSG_WriteString(&net_message, var->string); - } + MSG_WriteByte(&net_message, CCREP_PLAYER_INFO); + MSG_WriteByte(&net_message, playerNumber); + MSG_WriteString(&net_message, client->name); + MSG_WriteLong(&net_message, client->colors); + MSG_WriteLong(&net_message, client->frags); + MSG_WriteLong(&net_message, (int)(realtime - client->connecttime)); + MSG_WriteString(&net_message, client->netconnection ? client->netconnection->address : "botclient"); *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); SZ_Clear(&net_message); } + } + break; + case CCREQ_RULE_INFO: + if (developer.integer >= 10) + Con_Printf("Datagram_ParseConnectionless: received CCREQ_RULE_INFO from %s.\n", addressstring2); + if(!islocal && sv_public.integer <= -1) break; -#endif - default: - break; + if (sv.active) + { + char *prevCvarName; + cvar_t *var; + + // find the search start location + prevCvarName = MSG_ReadString(); + var = Cvar_FindVarAfter(prevCvarName, CVAR_NOTIFY); + + // send the response + SZ_Clear(&net_message); + // save space for the header, filled in later + MSG_WriteLong(&net_message, 0); + MSG_WriteByte(&net_message, CCREP_RULE_INFO); + if (var) + { + MSG_WriteString(&net_message, var->name); + MSG_WriteString(&net_message, var->string); + } + *((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK)); + NetConn_Write(mysocket, net_message.data, net_message.cursize, peeraddress); + SZ_Clear(&net_message); } - // we may not have liked the packet, but it was a valid control - // packet, so we're done processing this packet now - return true; + break; + default: + break; } + SZ_Clear(&net_message); + // we may not have liked the packet, but it was a valid control + // packet, so we're done processing this packet now + return true; } -#endif if (host_client) { - if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol)) == 2) + if ((ret = NetConn_ReceivedMessage(host_client->netconnection, data, length, sv.protocol, host_client->spawned ? net_messagetimeout.value : net_connecttimeout.value)) == 2) { SV_VM_Begin(); SV_ReadClientMessage(); @@ -2167,6 +2383,11 @@ void NetConn_ServerFrame(void) } } +void NetConn_SleepMicroseconds(int microseconds) +{ + LHNET_SleepUntilPacket_Microseconds(microseconds); +} + void NetConn_QueryMasters(qboolean querydp, qboolean queryqw) { int i; @@ -2209,7 +2430,7 @@ void NetConn_QueryMasters(qboolean querydp, qboolean queryqw) // search internet for (masternum = 0;sv_masters[masternum].name;masternum++) { - if (sv_masters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i]))) + if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && LHNETADDRESS_GetAddressType(&masteraddress) == LHNETADDRESS_GetAddressType(LHNET_AddressFromSocket(cl_sockets[i]))) { masterquerycount++; NetConn_WriteString(cl_sockets[i], request, &masteraddress); @@ -2280,11 +2501,11 @@ void NetConn_Heartbeat(int priority) // make advertising optional and don't advertise singleplayer games, and // only send a heartbeat as often as the admin wants - if (sv.active && sv_public.integer && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime)) + if (sv.active && sv_public.integer > 0 && svs.maxclients >= 2 && (priority > 1 || realtime > nextheartbeattime)) { nextheartbeattime = realtime + sv_heartbeatperiod.value; for (masternum = 0;sv_masters[masternum].name;masternum++) - if (sv_masters[masternum].string && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress))) + if (sv_masters[masternum].string && sv_masters[masternum].string[0] && LHNETADDRESS_FromString(&masteraddress, sv_masters[masternum].string, DPMASTER_PORT) && (mysocket = NetConn_ChooseServerSocketForAddress(&masteraddress))) NetConn_WriteString(mysocket, "\377\377\377\377heartbeat DarkPlaces\x0A", &masteraddress); } } @@ -2364,10 +2585,11 @@ void NetConn_Init(void) Cvar_RegisterVariable(&net_slist_timeout); Cvar_RegisterVariable(&net_slist_maxtries); Cvar_RegisterVariable(&net_messagetimeout); - Cvar_RegisterVariable(&net_messagerejointimeout); Cvar_RegisterVariable(&net_connecttimeout); + Cvar_RegisterVariable(&net_connectfloodblockingtimeout); Cvar_RegisterVariable(&cl_netlocalping); - Cvar_RegisterVariable(&cl_netpacketloss); + Cvar_RegisterVariable(&cl_netpacketloss_send); + Cvar_RegisterVariable(&cl_netpacketloss_receive); Cvar_RegisterVariable(&hostname); Cvar_RegisterVariable(&developer_networking); Cvar_RegisterVariable(&cl_netport); @@ -2384,7 +2606,7 @@ void NetConn_Init(void) { if (LHNETADDRESS_FromString(&tempaddress, com_argv[i + 1], 0) == 1) { - Con_Printf("-ip option used, setting net_address to \"%s\"\n"); + Con_Printf("-ip option used, setting net_address to \"%s\"\n", com_argv[i + 1]); Cvar_SetQuick(&net_address, com_argv[i + 1]); } else