okseby/Quake-III-Arena
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- Harden the client and server protocol against UDP spoofing attacks. This will defend ioquake3 against http://aluigi.altervista.org/papers/q3noclient.txt (#3041)

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- Retains full compatibility to the old but unsecure protocol between clients and servers
- Harden the connection process against DoS attacks, possibly connected to UDP spoofing
This commit is contained in:
Thilo Schulz 2011-04-27 16:03:35 +00:00
parent 06d12f6085
commit a5580d8974
11 changed files with 296 additions and 75 deletions
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6
code/client/cl_net_chan.c
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@ -147,9 +147,6 @@ void CL_Netchan_Transmit( netchan_t *chan, msg_t* msg ) {
Netchan_Transmit( chan, msg->cursize, msg->data );
}
extern int oldsize;
int newsize = 0;
/*
=================
CL_Netchan_Process
@ -161,7 +158,8 @@ qboolean CL_Netchan_Process( netchan_t *chan, msg_t *msg ) {
ret = Netchan_Process( chan, msg );
if (!ret)
return qfalse;
CL_Netchan_Decode( msg );
newsize += msg->cursize;
return qtrue;
}