Exemplo n.º 1
0
/**
 * \brief Check if we need to drop-log this packet
 *
 * \param tv    Pointer the current thread variables
 * \param p     Pointer the packet which is tested
 *
 * \retval bool TRUE or FALSE
 */
static int JsonDropLogCondition(ThreadVars *tv, const Packet *p)
{
    if (!EngineModeIsIPS()) {
        SCLogDebug("engine is not running in inline mode, so returning");
        return FALSE;
    }
    if (PKT_IS_PSEUDOPKT(p)) {
        SCLogDebug("drop log doesn't log pseudo packets");
        return FALSE;
    }

    if (g_droplog_flows_start && p->flow != NULL) {
        int ret = FALSE;

        /* for a flow that will be dropped fully, log just once per direction */
        if (p->flow->flags & FLOW_ACTION_DROP) {
            if (PKT_IS_TOSERVER(p) && !(p->flow->flags & FLOW_TOSERVER_DROP_LOGGED))
                ret = TRUE;
            else if (PKT_IS_TOCLIENT(p) && !(p->flow->flags & FLOW_TOCLIENT_DROP_LOGGED))
                ret = TRUE;
        }

        /* if drop is caused by signature, log anyway */
        if (p->alerts.drop.action != 0)
            ret = TRUE;

        return ret;
    } else if (PACKET_TEST_ACTION(p, ACTION_DROP)) {
        return TRUE;
    }

    return FALSE;
}
Exemplo n.º 2
0
/**
 * \brief Check if we need to drop-log this packet
 *
 * \param tv    Pointer the current thread variables
 * \param p     Pointer the packet which is tested
 *
 * \retval bool TRUE or FALSE
 */
static int LogDropCondition(ThreadVars *tv, const Packet *p)
{
    if (!EngineModeIsIPS()) {
        SCLogDebug("engine is not running in inline mode, so returning");
        return FALSE;
    }
    if (PKT_IS_PSEUDOPKT(p)) {
        SCLogDebug("drop log doesn't log pseudo packets");
        return FALSE;
    }

    if (p->flow != NULL) {
        int ret = FALSE;
        FLOWLOCK_RDLOCK(p->flow);
        if (p->flow->flags & FLOW_ACTION_DROP) {
            if (PKT_IS_TOSERVER(p) && !(p->flow->flags & FLOW_TOSERVER_DROP_LOGGED))
                ret = TRUE;
            else if (PKT_IS_TOCLIENT(p) && !(p->flow->flags & FLOW_TOCLIENT_DROP_LOGGED))
                ret = TRUE;
        }
        FLOWLOCK_UNLOCK(p->flow);
        return ret;
    } else if (PACKET_TEST_ACTION(p, ACTION_DROP)) {
        return TRUE;
    }

    return FALSE;
}
Exemplo n.º 3
0
/**
 * \brief   Log the dropped packets when engine is running in inline mode
 *
 * \param tv    Pointer the current thread variables
 * \param p     Pointer the packet which is being logged
 * \param data  Pointer to the droplog struct
 * \param pq    Pointer the packet queue
 * \param postpq Pointer the packet queue where this packet will be sent
 *
 * \return return TM_EODE_OK on success
 */
TmEcode LogDropLog (ThreadVars *tv, Packet *p, void *data, PacketQueue *pq,
                      PacketQueue *postpq)
{
    /* Check if we are in inline mode or not, if not then no need to log */
    extern uint8_t engine_mode;
    if (!IS_ENGINE_MODE_IPS(engine_mode)) {
        SCLogDebug("engine is not running in inline mode, so returning");
        return TM_ECODE_OK;
    }

    if ((p->flow != NULL) && (p->flow->flags & FLOW_ACTION_DROP)) {
        if (PKT_IS_TOSERVER(p) && !(p->flow->flags & FLOW_TOSERVER_DROP_LOGGED)) {
            p->flow->flags |= FLOW_TOSERVER_DROP_LOGGED;
            return LogDropLogNetFilter(tv, p, data, pq, NULL);

        } else if (PKT_IS_TOCLIENT(p) && !(p->flow->flags & FLOW_TOCLIENT_DROP_LOGGED)) {
            p->flow->flags |= FLOW_TOCLIENT_DROP_LOGGED;
            return LogDropLogNetFilter(tv, p, data, pq, NULL);
        }
    } else {
        return LogDropLogNetFilter(tv, p, data, pq, postpq);
    }

    return TM_ECODE_OK;

}
Exemplo n.º 4
0
static void DBLogAlState(void *alstate, AppProto proto,
		const Packet *p, json_t *js, const char *name) {
    if ((PKT_IS_TOCLIENT(p))) { /* drop server -> client log */ 
		return;
	}

    char timebuf[64];
    CreateTimeString(&p->ts, timebuf, sizeof(timebuf));
    char srcip[46], dstip[46];

	json_t *dbjs = json_object();
	if (dbjs == NULL)
		return;

	if (PKT_IS_IPV4(p)) {
		PrintInet(AF_INET, (const void *)GET_IPV4_SRC_ADDR_PTR(p), srcip, sizeof(srcip));
		PrintInet(AF_INET, (const void *)GET_IPV4_DST_ADDR_PTR(p), dstip, sizeof(dstip));
	} else {
		PrintInet(AF_INET6, (const void *)GET_IPV6_SRC_ADDR(p), srcip, sizeof(srcip));
		PrintInet(AF_INET6, (const void *)GET_IPV6_DST_ADDR(p), dstip, sizeof(dstip));
	}

#if 0
	char *dbtype = AlstateGetDBType(alstate, proto);
	char *username = AlstateGetUsername(alstate, proto);
	char *dbname = AlstateGetDBname(alstate, proto);
	char *dbopr = AlstateGetDBOpr(alstate, proto);
	char *action = AlstateGetAction(alstate, proto);
	char *meta = AlstateGetMetaInfo(alstate, proto);

	if (dbtype != NULL) {
		json_object_set_new(dbjs, "time", timebuf);
	}

	if (username != NULL) {
		json_object_set_new(dbjs, "user", username);
	}

	if (dbname != NULL) {
		json_object_set_new(dbjs, "db_name", dbname);
	}

	if (dbopr != NULL) {
		json_object_set_new(dbjs, "db_operation", dbopr);
	}

	if (action != NULL) {
		json_object_set_new(dbjs, "action", action);
	}

	if (meta != NULL) {
		json_object_set_new(dbjs, "meta_info", meta);
	}
#endif

	json_object_set_new(js, name, dbjs);
}
Exemplo n.º 5
0
/**
 * \brief   Log the dropped packets when engine is running in inline mode
 *
 * \param tv    Pointer the current thread variables
 * \param data  Pointer to the droplog struct
 * \param p     Pointer the packet which is being logged
 *
 * \retval 0 on succes
 */
static int LogDropLogger(ThreadVars *tv, void *thread_data, const Packet *p)
{

    int r = LogDropLogNetFilter(tv, p, thread_data);
    if (r < 0)
        return -1;

    if (p->flow) {
        if (p->flow->flags & FLOW_ACTION_DROP) {
            if (PKT_IS_TOSERVER(p) && !(p->flow->flags & FLOW_TOSERVER_DROP_LOGGED))
                p->flow->flags |= FLOW_TOSERVER_DROP_LOGGED;
            else if (PKT_IS_TOCLIENT(p) && !(p->flow->flags & FLOW_TOCLIENT_DROP_LOGGED))
                p->flow->flags |= FLOW_TOCLIENT_DROP_LOGGED;
        }
    }
    return 0;
}
Exemplo n.º 6
0
/**
 * \brief   Log the dropped packets when engine is running in inline mode
 *
 * \param tv    Pointer the current thread variables
 * \param data  Pointer to the droplog struct
 * \param p     Pointer the packet which is being logged
 *
 * \retval 0 on succes
 */
static int JsonDropLogger(ThreadVars *tv, void *thread_data, const Packet *p)
{
    JsonDropLogThread *td = thread_data;
    int r = DropLogJSON(td, p);
    if (r < 0)
        return -1;

    if (p->flow) {
        FLOWLOCK_RDLOCK(p->flow);
        if (p->flow->flags & FLOW_ACTION_DROP) {
            if (PKT_IS_TOSERVER(p) && !(p->flow->flags & FLOW_TOSERVER_DROP_LOGGED))
                p->flow->flags |= FLOW_TOSERVER_DROP_LOGGED;
            else if (PKT_IS_TOCLIENT(p) && !(p->flow->flags & FLOW_TOCLIENT_DROP_LOGGED))
                p->flow->flags |= FLOW_TOCLIENT_DROP_LOGGED;
        }
        FLOWLOCK_UNLOCK(p->flow);
    }
    return 0;
}
Exemplo n.º 7
0
static TmEcode FlowWorker(ThreadVars *tv, Packet *p, void *data, PacketQueue *preq, PacketQueue *unused)
{
    FlowWorkerThreadData *fw = data;
    void *detect_thread = SC_ATOMIC_GET(fw->detect_thread);

    SCLogDebug("packet %"PRIu64, p->pcap_cnt);

    /* update time */
    if (!(PKT_IS_PSEUDOPKT(p))) {
        TimeSetByThread(tv->id, &p->ts);
    }

    /* handle Flow */
    if (p->flags & PKT_WANTS_FLOW) {
        FLOWWORKER_PROFILING_START(p, PROFILE_FLOWWORKER_FLOW);

        FlowHandlePacket(tv, fw->dtv, p);
        if (likely(p->flow != NULL)) {
            DEBUG_ASSERT_FLOW_LOCKED(p->flow);
            if (FlowUpdate(p) == TM_ECODE_DONE) {
                FLOWLOCK_UNLOCK(p->flow);
                return TM_ECODE_OK;
            }
        }
        /* Flow is now LOCKED */

        FLOWWORKER_PROFILING_END(p, PROFILE_FLOWWORKER_FLOW);

    /* if PKT_WANTS_FLOW is not set, but PKT_HAS_FLOW is, then this is a
     * pseudo packet created by the flow manager. */
    } else if (p->flags & PKT_HAS_FLOW) {
        FLOWLOCK_WRLOCK(p->flow);
    }

    SCLogDebug("packet %"PRIu64" has flow? %s", p->pcap_cnt, p->flow ? "yes" : "no");

    /* handle TCP and app layer */
    if (p->flow && PKT_IS_TCP(p)) {
        SCLogDebug("packet %"PRIu64" is TCP. Direction %s", p->pcap_cnt, PKT_IS_TOSERVER(p) ? "TOSERVER" : "TOCLIENT");
        DEBUG_ASSERT_FLOW_LOCKED(p->flow);

        /* if detect is disabled, we need to apply file flags to the flow
         * here on the first packet. */
        if (detect_thread == NULL &&
                ((PKT_IS_TOSERVER(p) && (p->flowflags & FLOW_PKT_TOSERVER_FIRST)) ||
                 (PKT_IS_TOCLIENT(p) && (p->flowflags & FLOW_PKT_TOCLIENT_FIRST))))
        {
            DisableDetectFlowFileFlags(p->flow);
        }

        FLOWWORKER_PROFILING_START(p, PROFILE_FLOWWORKER_STREAM);
        StreamTcp(tv, p, fw->stream_thread, &fw->pq, NULL);
        FLOWWORKER_PROFILING_END(p, PROFILE_FLOWWORKER_STREAM);

        if (FlowChangeProto(p->flow)) {
            StreamTcpDetectLogFlush(tv, fw->stream_thread, p->flow, p, &fw->pq);
        }

        /* Packets here can safely access p->flow as it's locked */
        SCLogDebug("packet %"PRIu64": extra packets %u", p->pcap_cnt, fw->pq.len);
        Packet *x;
        while ((x = PacketDequeue(&fw->pq))) {
            SCLogDebug("packet %"PRIu64" extra packet %p", p->pcap_cnt, x);

            // TODO do we need to call StreamTcp on these pseudo packets or not?
            //StreamTcp(tv, x, fw->stream_thread, &fw->pq, NULL);
            if (detect_thread != NULL) {
                FLOWWORKER_PROFILING_START(x, PROFILE_FLOWWORKER_DETECT);
                Detect(tv, x, detect_thread, NULL, NULL);
                FLOWWORKER_PROFILING_END(x, PROFILE_FLOWWORKER_DETECT);
            }

            //  Outputs
            OutputLoggerLog(tv, x, fw->output_thread);

            /* put these packets in the preq queue so that they are
             * by the other thread modules before packet 'p'. */
            PacketEnqueue(preq, x);
        }

    /* handle the app layer part of the UDP packet payload */
    } else if (p->flow && p->proto == IPPROTO_UDP) {
        FLOWWORKER_PROFILING_START(p, PROFILE_FLOWWORKER_APPLAYERUDP);
        AppLayerHandleUdp(tv, fw->stream_thread->ra_ctx->app_tctx, p, p->flow);
        FLOWWORKER_PROFILING_END(p, PROFILE_FLOWWORKER_APPLAYERUDP);
    }

    /* handle Detect */
    DEBUG_ASSERT_FLOW_LOCKED(p->flow);
    SCLogDebug("packet %"PRIu64" calling Detect", p->pcap_cnt);

    if (detect_thread != NULL) {
        FLOWWORKER_PROFILING_START(p, PROFILE_FLOWWORKER_DETECT);
        Detect(tv, p, detect_thread, NULL, NULL);
        FLOWWORKER_PROFILING_END(p, PROFILE_FLOWWORKER_DETECT);
    }

    // Outputs.
    OutputLoggerLog(tv, p, fw->output_thread);

    /*  Release tcp segments. Done here after alerting can use them. */
    if (p->flow != NULL && p->proto == IPPROTO_TCP) {
        FLOWWORKER_PROFILING_START(p, PROFILE_FLOWWORKER_TCPPRUNE);
        StreamTcpPruneSession(p->flow, p->flowflags & FLOW_PKT_TOSERVER ?
                STREAM_TOSERVER : STREAM_TOCLIENT);
        FLOWWORKER_PROFILING_END(p, PROFILE_FLOWWORKER_TCPPRUNE);
    }

    if (p->flow) {
        DEBUG_ASSERT_FLOW_LOCKED(p->flow);
        FLOWLOCK_UNLOCK(p->flow);
    }

    return TM_ECODE_OK;
}
Exemplo n.º 8
0
json_t *CreateJSONHeader(Packet *p, int direction_sensitive, char *event_type)
{
    char timebuf[64];
    char srcip[46], dstip[46];
    Port sp, dp;

    json_t *js = json_object();
    if (unlikely(js == NULL))
        return NULL;

    CreateTimeString(&p->ts, timebuf, sizeof(timebuf));

    srcip[0] = '\0';
    dstip[0] = '\0';
    if (direction_sensitive) {
        if ((PKT_IS_TOCLIENT(p))) {
            if (PKT_IS_IPV4(p)) {
                PrintInet(AF_INET, (const void *)GET_IPV4_SRC_ADDR_PTR(p), srcip, sizeof(srcip));
                PrintInet(AF_INET, (const void *)GET_IPV4_DST_ADDR_PTR(p), dstip, sizeof(dstip));
            } else if (PKT_IS_IPV6(p)) {
                PrintInet(AF_INET6, (const void *)GET_IPV6_SRC_ADDR(p), srcip, sizeof(srcip));
                PrintInet(AF_INET6, (const void *)GET_IPV6_DST_ADDR(p), dstip, sizeof(dstip));
            }
            sp = p->sp;
            dp = p->dp;
        } else {
            if (PKT_IS_IPV4(p)) {
                PrintInet(AF_INET, (const void *)GET_IPV4_DST_ADDR_PTR(p), srcip, sizeof(srcip));
                PrintInet(AF_INET, (const void *)GET_IPV4_SRC_ADDR_PTR(p), dstip, sizeof(dstip));
            } else if (PKT_IS_IPV6(p)) {
                PrintInet(AF_INET6, (const void *)GET_IPV6_DST_ADDR(p), srcip, sizeof(srcip));
                PrintInet(AF_INET6, (const void *)GET_IPV6_SRC_ADDR(p), dstip, sizeof(dstip));
            }
            sp = p->dp;
            dp = p->sp;
        }
    } else {
        if (PKT_IS_IPV4(p)) {
            PrintInet(AF_INET, (const void *)GET_IPV4_SRC_ADDR_PTR(p), srcip, sizeof(srcip));
            PrintInet(AF_INET, (const void *)GET_IPV4_DST_ADDR_PTR(p), dstip, sizeof(dstip));
        } else if (PKT_IS_IPV6(p)) {
            PrintInet(AF_INET6, (const void *)GET_IPV6_SRC_ADDR(p), srcip, sizeof(srcip));
            PrintInet(AF_INET6, (const void *)GET_IPV6_DST_ADDR(p), dstip, sizeof(dstip));
        }
        sp = p->sp;
        dp = p->dp;
    }

    char proto[16];
    if (SCProtoNameValid(IP_GET_IPPROTO(p)) == TRUE) {
        strlcpy(proto, known_proto[IP_GET_IPPROTO(p)], sizeof(proto));
    } else {
        snprintf(proto, sizeof(proto), "%03" PRIu32, IP_GET_IPPROTO(p));
    }

    /* time & tx */
    json_object_set_new(js, "time", json_string(timebuf));

    /* sensor id */
    if (sensor_id >= 0)
        json_object_set_new(js, "sensor_id", json_integer(sensor_id));

    /* pcap_cnt */
    if (p->pcap_cnt != 0) {
        json_object_set_new(js, "pcap_cnt", json_integer(p->pcap_cnt));
    }

    if (event_type) {
        json_object_set_new(js, "event_type", json_string(event_type));
    }

    /* vlan */
    if (p->vlan_idx > 0) {
        json_t *js_vlan;
        switch (p->vlan_idx) {
            case 1:
                json_object_set_new(js, "vlan",
                                    json_integer(ntohs(GET_VLAN_ID(p->vlanh[0]))));
                break;
            case 2:
                js_vlan = json_array();
                if (unlikely(js != NULL)) {
                    json_array_append_new(js_vlan,
                                    json_integer(ntohs(GET_VLAN_ID(p->vlanh[0]))));
                    json_array_append_new(js_vlan,
                                    json_integer(ntohs(GET_VLAN_ID(p->vlanh[1]))));
                    json_object_set_new(js, "vlan", js_vlan);
                }
                break;
            default:
                /* shouldn't get here */
                break;
        }
    }

    /* tuple */
    json_object_set_new(js, "src_ip", json_string(srcip));
    switch(p->proto) {
        case IPPROTO_ICMP:
            break;
        case IPPROTO_UDP:
        case IPPROTO_TCP:
        case IPPROTO_SCTP:
            json_object_set_new(js, "src_port", json_integer(sp));
            break;
    }
    json_object_set_new(js, "dest_ip", json_string(dstip));
    switch(p->proto) {
        case IPPROTO_ICMP:
            break;
        case IPPROTO_UDP:
        case IPPROTO_TCP:
        case IPPROTO_SCTP:
            json_object_set_new(js, "dest_port", json_integer(dp));
            break;
    }
    json_object_set_new(js, "proto", json_string(proto));
    switch (p->proto) {
        case IPPROTO_ICMP:
            if (p->icmpv4h) {
                json_object_set_new(js, "icmp_type",
                                    json_integer(p->icmpv4h->type));
                json_object_set_new(js, "icmp_code",
                                    json_integer(p->icmpv4h->code));
            }
            break;
        case IPPROTO_ICMPV6:
            if (p->icmpv6h) {
                json_object_set_new(js, "icmp_type",
                                    json_integer(p->icmpv6h->type));
                json_object_set_new(js, "icmp_code",
                                    json_integer(p->icmpv6h->code));
            }
            break;
    }

    return js;
}
Exemplo n.º 9
0
/**
 * \brief Add five tuple from packet to JSON object
 *
 * \param p Packet
 * \param dir log direction (packet or flow)
 * \param js JSON object
 */
void JsonFiveTuple(const Packet *p, enum OutputJsonLogDirection dir, json_t *js)
{
    char srcip[46] = {0}, dstip[46] = {0};
    Port sp, dp;
    char proto[16];

    switch (dir) {
        case LOG_DIR_PACKET:
            if (PKT_IS_IPV4(p)) {
                PrintInet(AF_INET, (const void *)GET_IPV4_SRC_ADDR_PTR(p),
                        srcip, sizeof(srcip));
                PrintInet(AF_INET, (const void *)GET_IPV4_DST_ADDR_PTR(p),
                        dstip, sizeof(dstip));
            } else if (PKT_IS_IPV6(p)) {
                PrintInet(AF_INET6, (const void *)GET_IPV6_SRC_ADDR(p),
                        srcip, sizeof(srcip));
                PrintInet(AF_INET6, (const void *)GET_IPV6_DST_ADDR(p),
                        dstip, sizeof(dstip));
            } else {
                /* Not an IP packet so don't do anything */
                return;
            }
            sp = p->sp;
            dp = p->dp;
            break;
        case LOG_DIR_FLOW:
        case LOG_DIR_FLOW_TOSERVER:
            if ((PKT_IS_TOSERVER(p))) {
                if (PKT_IS_IPV4(p)) {
                    PrintInet(AF_INET, (const void *)GET_IPV4_SRC_ADDR_PTR(p),
                            srcip, sizeof(srcip));
                    PrintInet(AF_INET, (const void *)GET_IPV4_DST_ADDR_PTR(p),
                            dstip, sizeof(dstip));
                } else if (PKT_IS_IPV6(p)) {
                    PrintInet(AF_INET6, (const void *)GET_IPV6_SRC_ADDR(p),
                            srcip, sizeof(srcip));
                    PrintInet(AF_INET6, (const void *)GET_IPV6_DST_ADDR(p),
                            dstip, sizeof(dstip));
                }
                sp = p->sp;
                dp = p->dp;
            } else {
                if (PKT_IS_IPV4(p)) {
                    PrintInet(AF_INET, (const void *)GET_IPV4_DST_ADDR_PTR(p),
                            srcip, sizeof(srcip));
                    PrintInet(AF_INET, (const void *)GET_IPV4_SRC_ADDR_PTR(p),
                            dstip, sizeof(dstip));
                } else if (PKT_IS_IPV6(p)) {
                    PrintInet(AF_INET6, (const void *)GET_IPV6_DST_ADDR(p),
                            srcip, sizeof(srcip));
                    PrintInet(AF_INET6, (const void *)GET_IPV6_SRC_ADDR(p),
                            dstip, sizeof(dstip));
                }
                sp = p->dp;
                dp = p->sp;
            }
            break;
        case LOG_DIR_FLOW_TOCLIENT:
            if ((PKT_IS_TOCLIENT(p))) {
                if (PKT_IS_IPV4(p)) {
                    PrintInet(AF_INET, (const void *)GET_IPV4_SRC_ADDR_PTR(p),
                            srcip, sizeof(srcip));
                    PrintInet(AF_INET, (const void *)GET_IPV4_DST_ADDR_PTR(p),
                            dstip, sizeof(dstip));
                } else if (PKT_IS_IPV6(p)) {
                    PrintInet(AF_INET6, (const void *)GET_IPV6_SRC_ADDR(p),
                            srcip, sizeof(srcip));
                    PrintInet(AF_INET6, (const void *)GET_IPV6_DST_ADDR(p),
                            dstip, sizeof(dstip));
                }
                sp = p->sp;
                dp = p->dp;
            } else {
                if (PKT_IS_IPV4(p)) {
                    PrintInet(AF_INET, (const void *)GET_IPV4_DST_ADDR_PTR(p),
                            srcip, sizeof(srcip));
                    PrintInet(AF_INET, (const void *)GET_IPV4_SRC_ADDR_PTR(p),
                            dstip, sizeof(dstip));
                } else if (PKT_IS_IPV6(p)) {
                    PrintInet(AF_INET6, (const void *)GET_IPV6_DST_ADDR(p),
                            srcip, sizeof(srcip));
                    PrintInet(AF_INET6, (const void *)GET_IPV6_SRC_ADDR(p),
                            dstip, sizeof(dstip));
                }
                sp = p->dp;
                dp = p->sp;
            }
            break;
        default:
            DEBUG_VALIDATE_BUG_ON(1);
            return;
    }

    if (SCProtoNameValid(IP_GET_IPPROTO(p)) == TRUE) {
        strlcpy(proto, known_proto[IP_GET_IPPROTO(p)], sizeof(proto));
    } else {
        snprintf(proto, sizeof(proto), "%03" PRIu32, IP_GET_IPPROTO(p));
    }

    json_object_set_new(js, "src_ip", json_string(srcip));

    switch(p->proto) {
        case IPPROTO_ICMP:
            break;
        case IPPROTO_UDP:
        case IPPROTO_TCP:
        case IPPROTO_SCTP:
            json_object_set_new(js, "src_port", json_integer(sp));
            break;
    }

    json_object_set_new(js, "dest_ip", json_string(dstip));

    switch(p->proto) {
        case IPPROTO_ICMP:
            break;
        case IPPROTO_UDP:
        case IPPROTO_TCP:
        case IPPROTO_SCTP:
            json_object_set_new(js, "dest_port", json_integer(dp));
            break;
    }

    json_object_set_new(js, "proto", json_string(proto));
}