/**
* \brief This function passes off to link type decoders.
*
* DecodePcap reads packets from the PacketQueue and passes
* them off to the proper link type decoder.
*
* \param t pointer to ThreadVars
* \param p pointer to the current packet
* \param data pointer that gets cast into PcapThreadVars for ptv
* \param pq pointer to the current PacketQueue
*/
TmEcode DecodePcap(ThreadVars *tv, Packet *p, void *data, PacketQueue *pq, PacketQueue *postpq)
{
SCEnter();
DecodeThreadVars *dtv = (DecodeThreadVars *)data;
/* XXX HACK: flow timeout can call us for injected pseudo packets
* see bug: https://redmine.openinfosecfoundation.org/issues/1107 */
if (p->flags & PKT_PSEUDO_STREAM_END)
return TM_ECODE_OK;
/* update counters */
SCPerfCounterIncr(dtv->counter_pkts, tv->sc_perf_pca);
// SCPerfCounterIncr(dtv->counter_pkts_per_sec, tv->sc_perf_pca);
SCPerfCounterAddUI64(dtv->counter_bytes, tv->sc_perf_pca, GET_PKT_LEN(p));
#if 0
SCPerfCounterAddDouble(dtv->counter_bytes_per_sec, tv->sc_perf_pca, GET_PKT_LEN(p));
SCPerfCounterAddDouble(dtv->counter_mbit_per_sec, tv->sc_perf_pca,
(GET_PKT_LEN(p) * 8)/1000000.0);
#endif
SCPerfCounterAddUI64(dtv->counter_avg_pkt_size, tv->sc_perf_pca, GET_PKT_LEN(p));
SCPerfCounterSetUI64(dtv->counter_max_pkt_size, tv->sc_perf_pca, GET_PKT_LEN(p));
/* call the decoder */
switch(p->datalink) {
case LINKTYPE_LINUX_SLL:
DecodeSll(tv, dtv, p, GET_PKT_DATA(p), GET_PKT_LEN(p), pq);
break;
case LINKTYPE_ETHERNET:
DecodeEthernet(tv, dtv, p,GET_PKT_DATA(p), GET_PKT_LEN(p), pq);
break;
case LINKTYPE_PPP:
DecodePPP(tv, dtv, p, GET_PKT_DATA(p), GET_PKT_LEN(p), pq);
break;
case LINKTYPE_RAW:
DecodeRaw(tv, dtv, p, GET_PKT_DATA(p), GET_PKT_LEN(p), pq);
break;
default:
SCLogError(SC_ERR_DATALINK_UNIMPLEMENTED, "Error: datalink type %" PRId32 " not yet supported in module DecodePcap", p->datalink);
break;
}
PacketDecodeFinalize(tv, dtv, p);
SCReturnInt(TM_ECODE_OK);
}
/**
* \brief This function passes off to link type decoders.
*
* DecodePcap reads packets from the PacketQueue and passes
* them off to the proper link type decoder.
*
* \param t pointer to ThreadVars
* \param p pointer to the current packet
* \param data pointer that gets cast into PcapThreadVars for ptv
* \param pq pointer to the current PacketQueue
*/
TmEcode DecodePcap(ThreadVars *tv, Packet *p, void *data, PacketQueue *pq, PacketQueue *postpq)
{
SCEnter();
DecodeThreadVars *dtv = (DecodeThreadVars *)data;
/* XXX HACK: flow timeout can call us for injected pseudo packets
* see bug: https://redmine.openinfosecfoundation.org/issues/1107 */
if (p->flags & PKT_PSEUDO_STREAM_END)
return TM_ECODE_OK;
/* update counters */
DecodeUpdatePacketCounters(tv, dtv, p);
/* call the decoder */
switch(p->datalink) {
case LINKTYPE_LINUX_SLL:
DecodeSll(tv, dtv, p, GET_PKT_DATA(p), GET_PKT_LEN(p), pq);
break;
case LINKTYPE_ETHERNET:
DecodeEthernet(tv, dtv, p,GET_PKT_DATA(p), GET_PKT_LEN(p), pq);
break;
case LINKTYPE_PPP:
DecodePPP(tv, dtv, p, GET_PKT_DATA(p), GET_PKT_LEN(p), pq);
break;
case LINKTYPE_RAW:
DecodeRaw(tv, dtv, p, GET_PKT_DATA(p), GET_PKT_LEN(p), pq);
break;
case LINKTYPE_NULL:
DecodeNull(tv, dtv, p, GET_PKT_DATA(p), GET_PKT_LEN(p), pq);
break;
default:
SCLogError(SC_ERR_DATALINK_UNIMPLEMENTED, "Error: datalink type %" PRId32 " not yet supported in module DecodePcap", p->datalink);
break;
}
PacketDecodeFinalize(tv, dtv, p);
SCReturnInt(TM_ECODE_OK);
}
