Function isMACInCache

src/modules/wifi/karma_attack.cpp:862–875

void initMACCache() { macRingBuffer = xRingbufferCreate(MAC_CACHE_SIZE * 18, RINGBUF_TYPE_NOSPLIT); }

bool isMACInCache(const String &mac) {
    if (!macRingBuffer) return false;
    size_t itemSize;
    char *item = (char *)xRingbufferReceive(macRingBuffer, &itemSize, 0);
    while (item) {
        if (String(item) == mac) {
            vRingbufferReturnItem(macRingBuffer, item);
            return true;
        }
        vRingbufferReturnItem(macRingBuffer, item);
        item = (char *)xRingbufferReceive(macRingBuffer, &itemSize, 0);
    }
    return false;
}

void addMACToCache(const String &mac) {
    if (!macRingBuffer) return;