コード例 #1
0
ファイル: output-tx.c プロジェクト: bmeeks8/suricata
static TmEcode OutputTxLog(ThreadVars *tv, Packet *p, void *thread_data)
{
    BUG_ON(thread_data == NULL);
    if (list == NULL) {
        /* No child loggers registered. */
        return TM_ECODE_OK;
    }

    OutputLoggerThreadData *op_thread_data = (OutputLoggerThreadData *)thread_data;
    if (p->flow == NULL)
        return TM_ECODE_OK;

    Flow * const f = p->flow;
    const uint8_t ipproto = f->proto;
    const AppProto alproto = f->alproto;

    if (AppLayerParserProtocolIsTxAware(p->proto, alproto) == 0)
        goto end;
    if (AppLayerParserProtocolHasLogger(p->proto, alproto) == 0)
        goto end;
    const LoggerId logger_expectation = AppLayerParserProtocolGetLoggerBits(p->proto, alproto);
    if (logger_expectation == 0)
        goto end;

    void *alstate = f->alstate;
    if (alstate == NULL) {
        SCLogDebug("no alstate");
        goto end;
    }

    const uint8_t ts_disrupt_flags = FlowGetDisruptionFlags(f, STREAM_TOSERVER);
    const uint8_t tc_disrupt_flags = FlowGetDisruptionFlags(f, STREAM_TOCLIENT);
    const uint64_t total_txs = AppLayerParserGetTxCnt(f, alstate);
    uint64_t tx_id = AppLayerParserGetTransactionLogId(f->alparser);
    uint64_t max_id = tx_id;
    int logged = 0;
    int gap = 0;

    AppLayerGetTxIteratorFunc IterFunc = AppLayerGetTxIterator(ipproto, alproto);
    AppLayerGetTxIterState state;
    memset(&state, 0, sizeof(state));

    while (1) {
        AppLayerGetTxIterTuple ires = IterFunc(ipproto, alproto, alstate, tx_id, total_txs, &state);
        if (ires.tx_ptr == NULL)
            break;
        void * const tx = ires.tx_ptr;
        tx_id = ires.tx_id;

        LoggerId tx_logged = AppLayerParserGetTxLogged(f, alstate, tx);
        const LoggerId tx_logged_old = tx_logged;
        SCLogDebug("logger: expect %08x, have %08x", logger_expectation, tx_logged);
        if (tx_logged == logger_expectation) {
            /* tx already fully logged */
            goto next_tx;
        }

        int tx_progress_ts = AppLayerParserGetStateProgress(p->proto, alproto,
                tx, ts_disrupt_flags);
        int tx_progress_tc = AppLayerParserGetStateProgress(p->proto, alproto,
                tx, tc_disrupt_flags);
        SCLogDebug("tx_progress_ts %d tx_progress_tc %d",
                tx_progress_ts, tx_progress_tc);

        const OutputTxLogger *logger = list;
        const OutputLoggerThreadStore *store = op_thread_data->store;
#ifdef DEBUG_VALIDATION
        BUG_ON(logger == NULL && store != NULL);
        BUG_ON(logger != NULL && store == NULL);
        BUG_ON(logger == NULL && store == NULL);
#endif
        while (logger && store) {
            BUG_ON(logger->LogFunc == NULL);

            SCLogDebug("logger %p, LogCondition %p, ts_log_progress %d "
                    "tc_log_progress %d", logger, logger->LogCondition,
                    logger->ts_log_progress, logger->tc_log_progress);
            if (logger->alproto == alproto &&
                (tx_logged_old & (1<<logger->logger_id)) == 0)
            {
                SCLogDebug("alproto match, logging tx_id %"PRIu64, tx_id);

                if (!(AppLayerParserStateIssetFlag(f->alparser,
                                                   APP_LAYER_PARSER_EOF))) {
                    if (logger->LogCondition) {
                        int r = logger->LogCondition(tv, p, alstate, tx, tx_id);
                        if (r == FALSE) {
                            SCLogDebug("conditions not met, not logging");
                            goto next_logger;
                        }
                    } else {
                        if (tx_progress_tc < logger->tc_log_progress) {
                            SCLogDebug("progress not far enough, not logging");
                            goto next_logger;
                        }

                        if (tx_progress_ts < logger->ts_log_progress) {
                            SCLogDebug("progress not far enough, not logging");
                            goto next_logger;
                        }
                    }
                }

                SCLogDebug("Logging tx_id %"PRIu64" to logger %d", tx_id,
                    logger->logger_id);
                PACKET_PROFILING_LOGGER_START(p, logger->logger_id);
                logger->LogFunc(tv, store->thread_data, p, f, alstate, tx, tx_id);
                PACKET_PROFILING_LOGGER_END(p, logger->logger_id);

                tx_logged |= (1<<logger->logger_id);
            }

next_logger:
            logger = logger->next;
            store = store->next;
#ifdef DEBUG_VALIDATION
            BUG_ON(logger == NULL && store != NULL);
            BUG_ON(logger != NULL && store == NULL);
#endif
        }

        if (tx_logged != tx_logged_old) {
            SCLogDebug("logger: storing %08x (was %08x)",
                tx_logged, tx_logged_old);
            AppLayerParserSetTxLogged(p->proto, alproto, alstate, tx,
                    tx_logged);
        }

        /* If all loggers logged set a flag and update the last tx_id
         * that was logged.
         *
         * If not all loggers were logged we flag that there was a gap
         * so any subsequent transactions in this loop don't increase
         * the maximum ID that was logged. */
        if (!gap && tx_logged == logger_expectation) {
            logged = 1;
            max_id = tx_id;
        } else {
            gap = 1;
        }
next_tx:
        if (!ires.has_next)
            break;
        tx_id++;
    }

    /* Update the the last ID that has been logged with all
     * transactions before it. */
    if (logged) {
        SCLogDebug("updating log tx_id %"PRIu64, max_id);
        AppLayerParserSetTransactionLogId(f->alparser, max_id + 1);
    }

end:
    return TM_ECODE_OK;
}
コード例 #2
0
static TmEcode OutputTxLog(ThreadVars *tv, Packet *p, void *thread_data)
{
    BUG_ON(thread_data == NULL);
    if (list == NULL) {
        /* No child loggers registered. */
        return TM_ECODE_OK;
    }

    OutputLoggerThreadData *op_thread_data = (OutputLoggerThreadData *)thread_data;
    OutputTxLogger *logger = list;
    OutputLoggerThreadStore *store = op_thread_data->store;

    BUG_ON(logger == NULL && store != NULL);
    BUG_ON(logger != NULL && store == NULL);
    BUG_ON(logger == NULL && store == NULL);

    if (p->flow == NULL)
        return TM_ECODE_OK;

    Flow * const f = p->flow;

    AppProto alproto = f->alproto;

    if (AppLayerParserProtocolIsTxAware(p->proto, alproto) == 0)
        goto end;
    if (AppLayerParserProtocolHasLogger(p->proto, alproto) == 0)
        goto end;

    void *alstate = f->alstate;
    if (alstate == NULL) {
        SCLogDebug("no alstate");
        goto end;
    }

    uint64_t total_txs = AppLayerParserGetTxCnt(p->proto, alproto, alstate);
    uint64_t tx_id = AppLayerParserGetTransactionLogId(f->alparser);

    for (; tx_id < total_txs; tx_id++)
    {
        int logger_not_logged = 0;

        void *tx = AppLayerParserGetTx(p->proto, alproto, alstate, tx_id);
        if (tx == NULL) {
            SCLogDebug("tx is NULL not logging");
            continue;
        }

        int tx_progress_ts = AppLayerParserGetStateProgress(p->proto, alproto,
                tx, FlowGetDisruptionFlags(f, STREAM_TOSERVER));

        int tx_progress_tc = AppLayerParserGetStateProgress(p->proto, alproto,
                tx, FlowGetDisruptionFlags(f, STREAM_TOCLIENT));

        SCLogDebug("tx_progress_ts %d tx_progress_tc %d",
                tx_progress_ts, tx_progress_tc);

        // call each logger here (pseudo code)
        logger = list;
        store = op_thread_data->store;
        while (logger && store) {
            BUG_ON(logger->LogFunc == NULL);

            SCLogDebug("logger %p, LogCondition %p, ts_log_progress %d "
                    "tc_log_progress %d", logger, logger->LogCondition,
                    logger->ts_log_progress, logger->tc_log_progress);
            if (logger->alproto == alproto) {
                SCLogDebug("alproto match, logging tx_id %"PRIu64, tx_id);

                if (AppLayerParserGetTxLogged(p->proto, alproto, alstate, tx,
                        logger->id)) {
                    SCLogDebug("logger has already logged this transaction");

                    goto next;
                }

                if (!(AppLayerParserStateIssetFlag(f->alparser,
                                                   APP_LAYER_PARSER_EOF))) {
                    if (logger->LogCondition) {
                        int r = logger->LogCondition(tv, p, alstate, tx, tx_id);
                        if (r == FALSE) {
                            SCLogDebug("conditions not met, not logging");
                            logger_not_logged = 1;
                            goto next;
                        }
                    } else {
                        if (tx_progress_tc < logger->tc_log_progress) {
                            SCLogDebug("progress not far enough, not logging");
                            logger_not_logged = 1;
                            goto next;
                        }

                        if (tx_progress_ts < logger->ts_log_progress) {
                            SCLogDebug("progress not far enough, not logging");
                            logger_not_logged = 1;
                            goto next;
                        }
                    }
                }

                PACKET_PROFILING_LOGGER_START(p, logger->logger_id);
                logger->LogFunc(tv, store->thread_data, p, f, alstate, tx, tx_id);
                PACKET_PROFILING_LOGGER_END(p, logger->logger_id);

                AppLayerParserSetTxLogged(p->proto, alproto, alstate, tx,
                                          logger->id);
            }

next:
            logger = logger->next;
            store = store->next;

            BUG_ON(logger == NULL && store != NULL);
            BUG_ON(logger != NULL && store == NULL);
        }

        if (!logger_not_logged) {
            SCLogDebug("updating log tx_id %"PRIu64, tx_id);
            AppLayerParserSetTransactionLogId(f->alparser);
        }
    }

end:
    return TM_ECODE_OK;
}
コード例 #3
0
ファイル: output-tx.c プロジェクト: norg/suricata
static TmEcode OutputTxLog(ThreadVars *tv, Packet *p, void *thread_data)
{
    BUG_ON(thread_data == NULL);
    if (list == NULL) {
        /* No child loggers registered. */
        return TM_ECODE_OK;
    }

    OutputLoggerThreadData *op_thread_data = (OutputLoggerThreadData *)thread_data;
    if (p->flow == NULL)
        return TM_ECODE_OK;

    Flow * const f = p->flow;
    const AppProto alproto = f->alproto;

    if (AppLayerParserProtocolIsTxAware(p->proto, alproto) == 0)
        goto end;
    if (AppLayerParserProtocolHasLogger(p->proto, alproto) == 0)
        goto end;

    void *alstate = f->alstate;
    if (alstate == NULL) {
        SCLogDebug("no alstate");
        goto end;
    }

    const uint8_t ts_disrupt_flags = FlowGetDisruptionFlags(f, STREAM_TOSERVER);
    const uint8_t tc_disrupt_flags = FlowGetDisruptionFlags(f, STREAM_TOCLIENT);
    const uint64_t total_txs = AppLayerParserGetTxCnt(f, alstate);
    uint64_t tx_id = AppLayerParserGetTransactionLogId(f->alparser);
    uint64_t max_id = tx_id;
    int logged = 0;
    int gap = 0;

    for (; tx_id < total_txs; tx_id++)
    {
        /* Track the number of loggers, of the eligible loggers that
         * actually logged this transaction. They all must have logged
         * before the transaction is considered logged. */
        int number_of_loggers = 0;
        int loggers_that_logged = 0;

        void *tx = AppLayerParserGetTx(p->proto, alproto, alstate, tx_id);
        if (tx == NULL) {
            SCLogDebug("tx is NULL not logging");
            continue;
        }

        int tx_progress_ts = AppLayerParserGetStateProgress(p->proto, alproto,
                tx, ts_disrupt_flags);

        int tx_progress_tc = AppLayerParserGetStateProgress(p->proto, alproto,
                tx, tc_disrupt_flags);

        SCLogDebug("tx_progress_ts %d tx_progress_tc %d",
                tx_progress_ts, tx_progress_tc);

        const OutputTxLogger *logger = list;
        const OutputLoggerThreadStore *store = op_thread_data->store;
#ifdef DEBUG_VALIDATION
        BUG_ON(logger == NULL && store != NULL);
        BUG_ON(logger != NULL && store == NULL);
        BUG_ON(logger == NULL && store == NULL);
#endif
        while (logger && store) {
            BUG_ON(logger->LogFunc == NULL);

            SCLogDebug("logger %p, LogCondition %p, ts_log_progress %d "
                    "tc_log_progress %d", logger, logger->LogCondition,
                    logger->ts_log_progress, logger->tc_log_progress);
            if (logger->alproto == alproto) {
                SCLogDebug("alproto match, logging tx_id %"PRIu64, tx_id);

                number_of_loggers++;

                if (AppLayerParserGetTxLogged(f, alstate, tx, logger->id)) {
                    SCLogDebug("logger has already logged this transaction");
                    loggers_that_logged++;
                    goto next;
                }

                if (!(AppLayerParserStateIssetFlag(f->alparser,
                                                   APP_LAYER_PARSER_EOF))) {
                    if (logger->LogCondition) {
                        int r = logger->LogCondition(tv, p, alstate, tx, tx_id);
                        if (r == FALSE) {
                            SCLogDebug("conditions not met, not logging");
                            goto next;
                        }
                    } else {
                        if (tx_progress_tc < logger->tc_log_progress) {
                            SCLogDebug("progress not far enough, not logging");
                            goto next;
                        }

                        if (tx_progress_ts < logger->ts_log_progress) {
                            SCLogDebug("progress not far enough, not logging");
                            goto next;
                        }
                    }
                }

                SCLogDebug("Logging tx_id %"PRIu64" to logger %d", tx_id,
                    logger->logger_id);
                PACKET_PROFILING_LOGGER_START(p, logger->logger_id);
                logger->LogFunc(tv, store->thread_data, p, f, alstate, tx, tx_id);
                PACKET_PROFILING_LOGGER_END(p, logger->logger_id);

                AppLayerParserSetTxLogged(p->proto, alproto, alstate, tx,
                                          logger->id);
                loggers_that_logged++;
            }

next:
            logger = logger->next;
            store = store->next;
#ifdef DEBUG_VALIDATION
            BUG_ON(logger == NULL && store != NULL);
            BUG_ON(logger != NULL && store == NULL);
#endif
        }

        /* If all loggers logged set a flag and update the last tx_id
         * that was logged.
         *
         * If not all loggers were logged we flag that there was a gap
         * so any subsequent transactions in this loop don't increase
         * the maximum ID that was logged. */
        if (!gap && loggers_that_logged == number_of_loggers) {
            logged = 1;
            max_id = tx_id;
        } else {
            gap = 1;
        }
    }

    /* Update the the last ID that has been logged with all
     * transactions before it. */
    if (logged) {
        SCLogDebug("updating log tx_id %"PRIu64, max_id);
        AppLayerParserSetTransactionLogId(f->alparser, max_id + 1);
    }

end:
    return TM_ECODE_OK;
}