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Rate limit getchallenge

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This commit is contained in:
Tim Angus 2013-06-10 20:30:48 +01:00
parent 2937ac7661
commit 7b15415042
3 changed files with 39 additions and 20 deletions
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14
code/server/sv_client.c
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@ -67,6 +67,20 @@ void SV_GetChallenge(netadr_t from)
return;
}
// Prevent using getchallenge as an amplifier
if ( SVC_RateLimitAddress( from, 10, 1000 ) ) {
Com_DPrintf( "SV_GetChallenge: rate limit from %s exceeded, dropping request\n",
NET_AdrToString( from ) );
return;
}
// Allow getchallenge to be DoSed relatively easily, but prevent
// excess outbound bandwidth usage when being flooded inbound
if ( SVC_RateLimit( &outboundLeakyBucket, 10, 100 ) ) {
Com_DPrintf( "SV_GetChallenge: rate limit exceeded, dropping request\n" );
return;
}
gameName = Cmd_Argv(2);
#ifdef LEGACY_PROTOCOL