toe_utils.cpp

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/*
 * Copyright 2016 -- 2021 IBM Corporation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
 
#include "toe_utils.hpp"
 
 
#define THIS_NAME "ToeUtils"
 
 
const char *getEventName(EventType evType) {
    switch (evType) {
    case TX_EVENT:
        return "TX";
    case RT_EVENT:
        return "RT";
    case ACK_EVENT:
        return "ACK";
    case SYN_EVENT:
        return "SYN";
    case SYN_ACK_EVENT:
        return "SYN_ACK";
    case FIN_EVENT:
        return "";
    case RST_EVENT:
        return "";
    case ACK_NODELAY_EVENT:
        return "ACK_NODELAY";
    default:
        return "ERROR: UNKNOWN EVENT!";
    }
}
 
 
void printFourTuple(const char *callerName, int src, FourTuple fourTuple) {
    SocketPair socketPair;
    switch (src) {
        case FROM_RXe:
            socketPair.src.addr = byteSwap32(fourTuple.theirIp);
            socketPair.src.port = byteSwap16(fourTuple.theirPort);
            socketPair.dst.addr = byteSwap32(fourTuple.myIp);
            socketPair.dst.port = byteSwap16(fourTuple.myPort);
            break;
        case FROM_TAi:
            socketPair.src.addr = byteSwap32(fourTuple.myIp);
            socketPair.src.port = byteSwap16(fourTuple.myPort);
            socketPair.dst.addr = byteSwap32(fourTuple.theirIp);
            socketPair.dst.port = byteSwap16(fourTuple.theirPort);
            break;
        default:
            printFatal(callerName, "Unknown request source %d.\n", src);
            break;
    }
    printSockPair(callerName, socketPair);
}