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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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4
code/qcommon/q_shared.h
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@@ -34,6 +34,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#define GAMENAME_FOR_MASTER "iofoo3" // must NOT contain whitespaces
#define HEARTBEAT_FOR_MASTER GAMENAME_FOR_MASTER
#define FLATLINE_FOR_MASTER GAMENAME_FOR_MASTER "dead"
// #define PROTOCOL_SUPPORT_OLD // You probably don't need this for your standalone game
#else
#define PRODUCT_NAME "ioq3"
#define BASEGAME "baseq3"
@@ -42,6 +43,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#define GAMENAME_FOR_MASTER "Quake3Arena"
#define HEARTBEAT_FOR_MASTER "QuakeArena-1"
#define FLATLINE_FOR_MASTER HEARTBEAT_FOR_MASTER
#define PROTOCOL_SUPPORT_OLD
#endif
#define BASETA "missionpack"
@@ -682,7 +684,7 @@ void Parse2DMatrix (char **buf_p, int y, int x, float *m);
void Parse3DMatrix (char **buf_p, int z, int y, int x, float *m);
int Com_HexStrToInt( const char *str );
void QDECL Com_sprintf (char *dest, int size, const char *fmt, ...) __attribute__ ((format (printf, 3, 4)));
int QDECL Com_sprintf (char *dest, int size, const char *fmt, ...) __attribute__ ((format (printf, 3, 4)));
char *Com_SkipTokens( char *s, int numTokens, char *sep );
char *Com_SkipCharset( char *s, char *sep );