static int TCPGetWscaleTest01(void)
{
    int retval = 0;
    static uint8_t raw_tcp[] = {0xda, 0xc1, 0x00, 0x50, 0xb6, 0x21, 0x7f, 0x58,
                                0x00, 0x00, 0x00, 0x00, 0xa0, 0x02, 0x16, 0xd0,
                                0x8a, 0xaf, 0x00, 0x00, 0x02, 0x04, 0x05, 0xb4,
                                0x04, 0x02, 0x08, 0x0a, 0x00, 0x62, 0x88, 0x28,
                                0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x02};
    Packet *p = PacketGetFromAlloc();
    if (unlikely(p == NULL))
        return 0;
    IPV4Hdr ip4h;
    ThreadVars tv;
    DecodeThreadVars dtv;

    memset(&tv, 0, sizeof(ThreadVars));
    memset(&dtv, 0, sizeof(DecodeThreadVars));
    memset(&ip4h, 0, sizeof(IPV4Hdr));

    p->src.family = AF_INET;
    p->dst.family = AF_INET;
    p->ip4h = &ip4h;


    FlowInitConfig(FLOW_QUIET);
    DecodeTCP(&tv, &dtv, p, raw_tcp, sizeof(raw_tcp));

    if (p->tcph == NULL) {
        printf("tcp packet decode failed: ");
        goto end;
    }

    uint8_t wscale = TCP_GET_WSCALE(p);
    if (wscale != 2) {
        printf("wscale %"PRIu8", expected 2: ", wscale);
        goto end;
    }

    retval = 1;
end:
    PACKET_RECYCLE(p);
    FlowShutdown();
    SCFree(p);
    return retval;
}
static int TCPGetWscaleTest01(void)
{
    int retval = 0;
    static uint8_t raw_tcp[] = {0xda, 0xc1, 0x00, 0x50, 0xb6, 0x21, 0x7f, 0x58,
                                0x00, 0x00, 0x00, 0x00, 0xa0, 0x02, 0x16, 0xd0,
                                0x8a, 0xaf, 0x00, 0x00, 0x02, 0x04, 0x05, 0xb4,
                                0x04, 0x02, 0x08, 0x0a, 0x00, 0x62, 0x88, 0x28,
                                0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x02};
    Packet *p = PacketGetFromAlloc();
    if (unlikely(p == NULL))
        return 0;
    IPV4Hdr ip4h;
    ThreadVars tv;
    DecodeThreadVars dtv;

    memset(&tv, 0, sizeof(ThreadVars));
    memset(&dtv, 0, sizeof(DecodeThreadVars));
    memset(&ip4h, 0, sizeof(IPV4Hdr));

    p->src.family = AF_INET;
    p->dst.family = AF_INET;
    p->ip4h = &ip4h;


    FlowInitConfig(FLOW_QUIET);
    DecodeTCP(&tv, &dtv, p, raw_tcp, sizeof(raw_tcp));

    if (p->tcph == NULL) {
        printf("tcp packet decode failed: ");
        goto end;
    }

    uint8_t wscale = TCP_GET_WSCALE(p);
    if (wscale != 2) {
        printf("wscale %"PRIu8", expected 2: ", wscale);
        goto end;
    }

    retval = 1;
end:
    PACKET_RECYCLE(p);
    FlowShutdown();
    SCFree(p);
    return retval;
}