int Norm_SetConfig (NormalizerContext* nc)
{
if ( !DAQ_CanReplace() )
{
LogMessage("WARNING: normalizations disabled because DAQ"
" can't replace packets.\n");
nc->normalizer_flags = 0x0;
return -1;
}
if ( !nc->normalizer_flags )
{
return 0;
}
if ( Norm_IsEnabled(nc, NORM_IP4) )
{
nc->normalizers[PROTO_IP4] = Norm_IP4;
}
if ( Norm_IsEnabled(nc, NORM_IP4_TRIM) )
{
if ( !DAQ_CanInject() )
{
LogMessage("WARNING: normalize_ip4: trim disabled since DAQ "
"can't inject packets.\n");
Norm_Disable(nc, NORM_IP4_TRIM);
}
}
if ( Norm_IsEnabled(nc, NORM_ICMP4) )
{
nc->normalizers[PROTO_ICMP4] = Norm_ICMP4;
}
if ( Norm_IsEnabled(nc, NORM_IP6) )
{
nc->normalizers[PROTO_IP6] = Norm_IP6;
nc->normalizers[PROTO_IP6_HOP_OPTS] = Norm_IP6_Opts;
nc->normalizers[PROTO_IP6_DST_OPTS] = Norm_IP6_Opts;
}
if ( Norm_IsEnabled(nc, NORM_ICMP6) )
{
nc->normalizers[PROTO_ICMP6] = Norm_ICMP6;
}
if ( Norm_IsEnabled(nc, NORM_TCP) )
{
nc->normalizers[PROTO_TCP] = Norm_TCP;
}
return 0;
}
int Active_Init (SnortConfig* sc)
{
s_attempts = sc->respond_attempts;
if ( s_attempts > MAX_ATTEMPTS ) s_attempts = MAX_ATTEMPTS;
if ( s_enabled && !s_attempts ) s_attempts = 1;
if ( s_enabled && (!DAQ_CanInject() || sc->respond_device) )
{
if ( ScReadMode() || Active_Open(sc->respond_device) )
{
LogMessage("WARNING: active responses disabled since DAQ "
"can't inject packets.\n");
#ifndef REG_TEST
s_attempts = s_enabled = 0;
#endif
}
if (NULL != sc->eth_dst)
Encode_SetDstMAC(sc->eth_dst);
}
return 0;
}
