Initial commit.

2013-04-04 14:32:05 -07:00
parent ba5c81da32
commit d71d53e8ec
2180 changed files with 1393544 additions and 1 deletions
--- a/codemp/server/sv_net_chan.cpp
+++ b/codemp/server/sv_net_chan.cpp
@@ -0,0 +1,179 @@
+//Anything above this #include will be ignored by the compiler
+#include "../qcommon/exe_headers.h"
+
+#include "server.h"
+
+// TTimo: unused, commenting out to make gcc happy
+#if 1
+/*
+==============
+SV_Netchan_Encode
+
+	// first four bytes of the data are always:
+	long reliableAcknowledge;
+
+==============
+*/
+static void SV_Netchan_Encode( client_t *client, msg_t *msg ) {
+#ifdef _XBOX
+	return;
+#endif
+	long reliableAcknowledge, i, index;
+	byte key, *string;
+        int	srdc, sbit, soob;
+        
+	if ( msg->cursize < SV_ENCODE_START ) {
+		return;
+	}
+
+        srdc = msg->readcount;
+        sbit = msg->bit;
+        soob = msg->oob;
+        
+        msg->bit = 0;
+        msg->readcount = 0;
+        msg->oob = (qboolean)0;
+        
+	reliableAcknowledge = MSG_ReadLong(msg);
+
+        msg->oob = (qboolean)soob;
+        msg->bit = sbit;
+        msg->readcount = srdc;
+        
+	string = (byte *)client->lastClientCommandString;
+	index = 0;
+	// xor the client challenge with the netchan sequence number
+	key = client->challenge ^ client->netchan.outgoingSequence;
+	for (i = SV_ENCODE_START; i < msg->cursize; i++) {
+		// modify the key with the last received and with this message acknowledged client command
+		if (!string[index])
+			index = 0;
+		if (/*string[index] > 127 ||*/	// eurofix: remove this so we can chat in european languages...	-ste
+			string[index] == '%') 
+		{
+			key ^= '.' << (i & 1);
+		}
+		else {
+			key ^= string[index] << (i & 1);
+		}
+		index++;
+		// encode the data with this key
+		*(msg->data + i) = *(msg->data + i) ^ key;
+	}
+}
+
+/*
+==============
+SV_Netchan_Decode
+
+	// first 12 bytes of the data are always:
+	long serverId;
+	long messageAcknowledge;
+	long reliableAcknowledge;
+
+==============
+*/
+static void SV_Netchan_Decode( client_t *client, msg_t *msg ) {
+#ifdef _XBOX
+	return;
+#endif
+	int serverId, messageAcknowledge, reliableAcknowledge;
+	int i, index, srdc, sbit, soob;
+	byte key, *string;
+
+        srdc = msg->readcount;
+        sbit = msg->bit;
+        soob = msg->oob;
+        
+        msg->oob = (qboolean)0;
+        
+        serverId = MSG_ReadLong(msg);
+	messageAcknowledge = MSG_ReadLong(msg);
+	reliableAcknowledge = MSG_ReadLong(msg);
+
+        msg->oob = (qboolean)soob;
+        msg->bit = sbit;
+        msg->readcount = srdc;
+        
+	string = (byte *)client->reliableCommands[ reliableAcknowledge & (MAX_RELIABLE_COMMANDS-1) ];
+	index = 0;
+	//
+	key = client->challenge ^ serverId ^ messageAcknowledge;
+	for (i = msg->readcount + SV_DECODE_START; i < msg->cursize; i++) {
+		// modify the key with the last sent and acknowledged server command
+		if (!string[index])
+			index = 0;
+		if (/*string[index] > 127 || */	// eurofix: remove this so we can chat in european languages...	-ste
+			string[index] == '%') 
+		{
+			key ^= '.' << (i & 1);
+		}
+		else {
+			key ^= string[index] << (i & 1);
+		}
+		index++;
+		// decode the data with this key
+		*(msg->data + i) = *(msg->data + i) ^ key;
+	}
+}
+#endif
+
+/*
+=================
+SV_Netchan_TransmitNextFragment
+=================
+*/
+void SV_Netchan_TransmitNextFragment( netchan_t *chan ) {
+	Netchan_TransmitNextFragment( chan );
+}
+
+
+/*
+===============
+SV_Netchan_Transmit
+================
+*/
+
+//extern byte chksum[65536];
+void SV_Netchan_Transmit( client_t *client, msg_t *msg) {	//int length, const byte *data ) {
+
+	// To avoid endless recursion:
+	static bool droppingClient = false;
+
+	MSG_WriteByte( msg, svc_EOF );
+	SV_Netchan_Encode( client, msg );
+
+	if( !Netchan_Transmit( &client->netchan, msg->cursize, msg->data ) &&
+		!droppingClient )
+	{
+		// Don't fail when we get around to sending the removepeer to this person again!
+		droppingClient = true;
+
+		// Quick detection of dropped clients!
+		SV_DropClient( client, "@MENUS_LOST_CONNECTION" );
+
+		droppingClient = false;
+	}
+}
+
+/*
+=================
+Netchan_SV_Process
+=================
+*/
+qboolean SV_Netchan_Process( client_t *client, msg_t *msg ) {
+	int ret;
+//	int i;
+	ret = Netchan_Process( &client->netchan, msg );
+	if (!ret)
+		return qfalse;
+	SV_Netchan_Decode( client, msg );
+//	Huff_Decompress( msg, SV_DECODE_START );
+//	for(i=SV_DECODE_START+msg->readcount;i<msg->cursize;i++) {
+//		if (msg->data[i] != chksum[i-(SV_DECODE_START+msg->readcount)]) {
+//			Com_Error(ERR_DROP,"bad\n");
+//		}
+//	}
+	return qtrue;
+}
+