/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB
 * All rights reserved.
 *
 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
 *    redistribution must be conditioned upon including a substantially
 *    similar Disclaimer requirement for further binary redistribution.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGES.
 */
#include "if_wtapvar.h"
#include <sys/uio.h>    /* uio struct */
#include <net/if_var.h>

#include "if_medium.h"
#include "wtap_hal/hal.h"

/*
 * This _requires_ vimage to be useful.
 */
#ifndef VIMAGE
#error  if_wtap requires VIMAGE.
#endif  /* VIMAGE */

/* device for IOCTL and read/write for debuggin purposes */
/* Function prototypes */
static  d_open_t        wtap_node_open;
static  d_close_t       wtap_node_close;
static  d_write_t       wtap_node_write;
static  d_ioctl_t       wtap_node_ioctl;

static struct cdevsw wtap_cdevsw = {
        .d_version =    D_VERSION,
        .d_flags =      0,
        .d_open =       wtap_node_open,
        .d_close =      wtap_node_close,
        .d_write =      wtap_node_write,
        .d_ioctl =      wtap_node_ioctl,
        .d_name =       "wtapnode",
};

static int
wtap_node_open(struct cdev *dev, int oflags, int devtype, struct thread *p)
{

        int err = 0;
        uprintf("Opened device \"echo\" successfully.\n");
        return(err);
}

static int
wtap_node_close(struct cdev *dev, int fflag, int devtype, struct thread *p)
{

        uprintf("Closing device \"echo.\"\n");
        return(0);
}

static int
wtap_node_write(struct cdev *dev, struct uio *uio, int ioflag)
{
        int err = 0;
        struct mbuf *m;
        struct wtap_softc *sc;
        uint8_t buf[1024];
        struct epoch_tracker et;
        int buf_len;

        uprintf("write device %s \"echo.\"\n", devtoname(dev));
        buf_len = MIN(uio->uio_iov->iov_len, 1024);
        err = copyin(uio->uio_iov->iov_base, buf, buf_len);

        if (err != 0) {
                uprintf("Write failed: bad address!\n");
                return (err);
        }

        MGETHDR(m, M_NOWAIT, MT_DATA);
        m_copyback(m, 0, buf_len, buf);

        NET_EPOCH_ENTER(et);

        sc = (struct wtap_softc *)dev->si_drv1;
        printf("wtap id = %d\n", sc->id);
        wtap_inject(sc, m);

        NET_EPOCH_EXIT(et);

        return(err);
}

int
wtap_node_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
    int fflag, struct thread *td)
{
        int error = 0;

        switch(cmd) {
        default:
                DWTAP_PRINTF("Unknown WTAP IOCTL\n");
                error = EINVAL;
        }
        return error;
}

static int wtap_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
        const struct ieee80211_bpf_params *params);

static int
wtap_medium_enqueue(struct wtap_vap *avp, struct mbuf *m)
{

        return medium_transmit(avp->av_md, avp->id, m);
}

/*
 * Intercept management frames to collect beacon rssi data
 * and to do ibss merges.
 */
static void
wtap_recv_mgmt(struct ieee80211_node *ni, struct mbuf *m,
    int subtype, const struct ieee80211_rx_stats *stats, int rssi, int nf)
{
        struct ieee80211vap *vap = ni->ni_vap;
        struct wtap_softc *sc = vap->iv_ic->ic_softc;
#if 0
        DWTAP_PRINTF("[%d] %s\n", myath_id(ni), __func__);
#endif
        /*
         * Call up first so subsequent work can use information
         * potentially stored in the node (e.g. for ibss merge).
         */
        WTAP_VAP(vap)->av_recv_mgmt(ni, m, subtype, stats, rssi, nf);

        switch (subtype) {
        case IEEE80211_FC0_SUBTYPE_BEACON:
        case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
                if (vap->iv_opmode == IEEE80211_M_IBSS &&
                    vap->iv_state == IEEE80211_S_RUN &&
                    ieee80211_ibss_merge_check(ni)) {
                        uint64_t tsf = wtap_hal_get_tsf(sc->hal);

                        /*
                         * Handle ibss merge as needed; check the tsf on the
                         * frame before attempting the merge.  The 802.11 spec
                         * says the station should change it's bssid to match
                         * the oldest station with the same ssid, where oldest
                         * is determined by the tsf.  Note that hardware
                         * reconfiguration happens through callback to
                         * ath_newstate as the state machine will go from
                         * RUN -> RUN when this happens.
                         */
                        if (le64toh(ni->ni_tstamp.tsf) >= tsf)
                                (void) ieee80211_ibss_merge(ni);
                }
                break;
        }
}

static int
wtap_reset_vap(struct ieee80211vap *vap, u_long cmd)
{

        DWTAP_PRINTF("%s\n", __func__);
        return 0;
}

static void
wtap_beacon_update(struct ieee80211vap *vap, int item)
{
        struct ieee80211_beacon_offsets *bo = &vap->iv_bcn_off;

        DWTAP_PRINTF("%s\n", __func__);
        setbit(bo->bo_flags, item);
}

/*
 * Allocate and setup an initial beacon frame.
 */
static int
wtap_beacon_alloc(struct wtap_softc *sc, struct ieee80211_node *ni)
{
        struct ieee80211vap *vap = ni->ni_vap;
        struct wtap_vap *avp = WTAP_VAP(vap);

        DWTAP_PRINTF("[%s] %s\n", ether_sprintf(ni->ni_macaddr), __func__);

        /*
         * NB: the beacon data buffer must be 32-bit aligned;
         * we assume the mbuf routines will return us something
         * with this alignment (perhaps should assert).
         */
        avp->beacon = ieee80211_beacon_alloc(ni);
        if (avp->beacon == NULL) {
                printf("%s: cannot get mbuf\n", __func__);
                return ENOMEM;
        }
        avp->bf_node = ieee80211_ref_node(ni);

        return 0;
}

static void
wtap_beacon_config(struct wtap_softc *sc, struct ieee80211vap *vap)
{
        DWTAP_PRINTF("%s\n", __func__);
}

static void
wtap_beacon_intrp(void *arg)
{
        struct wtap_vap *avp = arg;
        struct ieee80211vap *vap = arg;
        struct wtap_softc *sc = vap->iv_ic->ic_softc;
        struct ieee80211_frame *wh;
        struct mbuf *m;
        uint64_t tsf;

        if (vap->iv_state < IEEE80211_S_RUN) {
            DWTAP_PRINTF("Skip beacon, not running, state %d", vap->iv_state);
            return ;
        }
        DWTAP_PRINTF("[%d] beacon intrp\n", avp->id);   //burst mode
        /*
         * Update dynamic beacon contents.  If this returns
         * non-zero then we need to remap the memory because
         * the beacon frame changed size (probably because
         * of the TIM bitmap).
         */
        m = m_dup(avp->beacon, M_NOWAIT);
        if (ieee80211_beacon_update(avp->bf_node, m, 0)) {
                printf("%s, need to remap the memory because the beacon frame"
                    " changed size.\n",__func__);
        }

        /* Get TSF from HAL, and insert it into beacon frame */
        tsf = wtap_hal_get_tsf(sc->hal);
        wh = mtod(m, struct ieee80211_frame *);
        memcpy(&wh[1], &tsf, sizeof(tsf));

        if (ieee80211_radiotap_active_vap(vap))
            ieee80211_radiotap_tx(vap, m);

#if 0
        medium_transmit(avp->av_md, avp->id, m);
#endif
        wtap_medium_enqueue(avp, m);
        callout_schedule(&avp->av_swba, avp->av_bcinterval);
}

static int
wtap_newstate(struct ieee80211vap *vap, enum ieee80211_state nstate, int arg)
{
        struct ieee80211com *ic = vap->iv_ic;
        struct wtap_softc *sc = ic->ic_softc;
        struct wtap_vap *avp = WTAP_VAP(vap);
        struct ieee80211_node *ni = NULL;
        int error;

        DWTAP_PRINTF("%s\n", __func__);

        ni = ieee80211_ref_node(vap->iv_bss);
        /*
         * Invoke the parent method to do net80211 work.
         */
        error = avp->av_newstate(vap, nstate, arg);
        if (error != 0)
                goto bad;

        if (nstate == IEEE80211_S_RUN) {
                /* NB: collect bss node again, it may have changed */
                ieee80211_free_node(ni);
                ni = ieee80211_ref_node(vap->iv_bss);
                switch (vap->iv_opmode) {
                case IEEE80211_M_IBSS:
                case IEEE80211_M_MBSS:
                        /*
                         * Stop any previous beacon callout. This may be
                         * necessary, for example, when an ibss merge
                         * causes reconfiguration; there will be a state
                         * transition from RUN->RUN that means we may
                         * be called with beacon transmission active.
                         */
                        callout_stop(&avp->av_swba);

                        error = wtap_beacon_alloc(sc, ni);
                        if (error != 0)
                                goto bad;

                        /*
                         * If joining an adhoc network defer beacon timer
                         * configuration to the next beacon frame so we
                         * have a current TSF to use.  Otherwise we're
                         * starting an ibss/bss so there's no need to delay;
                         * if this is the first vap moving to RUN state, then
                         * beacon state needs to be [re]configured.
                         */
                        if (vap->iv_opmode == IEEE80211_M_IBSS &&
                            ni->ni_tstamp.tsf != 0)
                                break;

                        wtap_beacon_config(sc, vap);

                        /* Start TSF timer from now, and start s/w beacon alert */
                        wtap_hal_reset_tsf(sc->hal);
                        callout_reset(&avp->av_swba, avp->av_bcinterval,
                            wtap_beacon_intrp, vap);
                        break;
                default:
                        goto bad;
                }
        } else if (nstate == IEEE80211_S_INIT) {
                callout_stop(&avp->av_swba);
        }
        ieee80211_free_node(ni);
        return 0;
bad:
        printf("%s: bad\n", __func__);
        ieee80211_free_node(ni);
        return error;
}

static void
wtap_bmiss(struct ieee80211vap *vap)
{
        struct wtap_vap *avp = (struct wtap_vap *)vap;

        DWTAP_PRINTF("%s\n", __func__);
        avp->av_bmiss(vap);
}

static struct ieee80211vap *
wtap_vap_create(struct ieee80211com *ic, const char name[IFNAMSIZ],
    int unit, enum ieee80211_opmode opmode, int flags,
    const uint8_t bssid[IEEE80211_ADDR_LEN],
    const uint8_t mac[IEEE80211_ADDR_LEN])
{
         struct wtap_softc *sc = ic->ic_softc;
         struct ieee80211vap *vap;
         struct wtap_vap *avp;
         int error;
        struct ieee80211_node *ni;

         DWTAP_PRINTF("%s\n", __func__);

        avp = malloc(sizeof(struct wtap_vap), M_80211_VAP, M_WAITOK | M_ZERO);
        avp->id = sc->id;
        avp->av_md = sc->sc_md;
        avp->av_bcinterval = msecs_to_ticks(BEACON_INTRERVAL + 100*sc->id);
        vap = (struct ieee80211vap *) avp;
        error = ieee80211_vap_setup(ic, vap, name, unit, opmode,
            flags | IEEE80211_CLONE_NOBEACONS, bssid);
        if (error) {
                free(avp, M_80211_VAP);
                return (NULL);
        }

        /* override various methods */
        avp->av_recv_mgmt = vap->iv_recv_mgmt;
        vap->iv_recv_mgmt = wtap_recv_mgmt;
        vap->iv_reset = wtap_reset_vap;
        vap->iv_update_beacon = wtap_beacon_update;
        avp->av_newstate = vap->iv_newstate;
        vap->iv_newstate = wtap_newstate;
        avp->av_bmiss = vap->iv_bmiss;
        vap->iv_bmiss = wtap_bmiss;

        /* complete setup */
        ieee80211_vap_attach(vap, ieee80211_media_change,
            ieee80211_media_status, mac);
        avp->av_dev = make_dev(&wtap_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600,
            "%s", if_name(vap->iv_ifp));
        avp->av_dev->si_drv1 = sc;
        callout_init(&avp->av_swba, 0);

        /* TODO this is a hack to force it to choose the rate we want */
        ni = ieee80211_ref_node(vap->iv_bss);
        ieee80211_node_set_txrate_ht_mcsrate(ni, 2);
        ieee80211_free_node(ni);
        return vap;
}

static void
wtap_vap_delete(struct ieee80211vap *vap)
{
        struct wtap_vap *avp = WTAP_VAP(vap);

        DWTAP_PRINTF("%s\n", __func__);
        destroy_dev(avp->av_dev);
        callout_stop(&avp->av_swba);
        ieee80211_vap_detach(vap);
        free(avp, M_80211_VAP);
}

static void
wtap_parent(struct ieee80211com *ic)
{
        struct wtap_softc *sc = ic->ic_softc;

        if (ic->ic_nrunning > 0) {
                sc->up = 1;
                ieee80211_start_all(ic);
        } else
                sc->up = 0;
}

static void
wtap_scan_start(struct ieee80211com *ic)
{

#if 0
        DWTAP_PRINTF("%s\n", __func__);
#endif
}

static void
wtap_scan_end(struct ieee80211com *ic)
{

#if 0
        DWTAP_PRINTF("%s\n", __func__);
#endif
}

static void
wtap_set_channel(struct ieee80211com *ic)
{

#if 0
        DWTAP_PRINTF("%s\n", __func__);
#endif
}

static int
wtap_raw_xmit(struct ieee80211_node *ni, struct mbuf *m,
        const struct ieee80211_bpf_params *params)
{
#if 0
        DWTAP_PRINTF("%s, %p\n", __func__, m);
#endif
        struct ieee80211vap     *vap = ni->ni_vap;
        struct wtap_vap         *avp = WTAP_VAP(vap);

        if (ieee80211_radiotap_active_vap(vap)) {
                ieee80211_radiotap_tx(vap, m);
        }
        if (m->m_flags & M_TXCB)
                ieee80211_process_callback(ni, m, 0);
        ieee80211_free_node(ni);
        return wtap_medium_enqueue(avp, m);
}

void
wtap_inject(struct wtap_softc *sc, struct mbuf *m)
{
      struct wtap_buf *bf = (struct wtap_buf *)malloc(sizeof(struct wtap_buf),
          M_WTAP_RXBUF, M_NOWAIT | M_ZERO);
      KASSERT(bf != NULL, ("could not allocated a new wtap_buf\n"));
      bf->m = m;

      mtx_lock(&sc->sc_mtx);
      STAILQ_INSERT_TAIL(&sc->sc_rxbuf, bf, bf_list);
      taskqueue_enqueue(sc->sc_tq, &sc->sc_rxtask);
      mtx_unlock(&sc->sc_mtx);
}

static void
wtap_rx_proc(void *arg, int npending)
{
        struct wtap_softc *sc = (struct wtap_softc *)arg;
        struct ieee80211com *ic = &sc->sc_ic;
        struct mbuf *m;
        struct ieee80211_node *ni;
        struct wtap_buf *bf;

#if 0
        DWTAP_PRINTF("%s\n", __func__);
#endif

        for(;;) {
                mtx_lock(&sc->sc_mtx);
                bf = STAILQ_FIRST(&sc->sc_rxbuf);
                if (bf == NULL) {
                        mtx_unlock(&sc->sc_mtx);
                        return;
                }
                STAILQ_REMOVE_HEAD(&sc->sc_rxbuf, bf_list);
                mtx_unlock(&sc->sc_mtx);
                KASSERT(bf != NULL, ("wtap_buf is NULL\n"));
                m = bf->m;
                DWTAP_PRINTF("[%d] receiving m=%p\n", sc->id, bf->m);
                if (m == NULL) {                /* NB: shouldn't happen */
                        ic_printf(ic, "%s: no mbuf!\n", __func__);
                        free(bf, M_WTAP_RXBUF);
                        return;
                }

                /*
                 * It's weird to do this, but sometimes wtap will
                 * receive AMPDU packets (like ping(8)) even when
                 * the ic does not supports 11n HT.
                 */
                m->m_flags &= ~M_AMPDU;
#if 0
                ieee80211_dump_pkt(ic, mtod(m, caddr_t), 0,0,0);
#endif

                /*
                 * Locate the node for sender, track state, and then
                 * pass the (referenced) node up to the 802.11 layer
                 * for its use.
                 */
                ni = ieee80211_find_rxnode_withkey(ic,
                    mtod(m, const struct ieee80211_frame_min *),
                    IEEE80211_KEYIX_NONE);
                if (ni != NULL) {
                        /*
                         * Sending station is known, dispatch directly.
                         */
                        ieee80211_input(ni, m, 1<<7, 10);
                        ieee80211_free_node(ni);
                } else {
                        ieee80211_input_all(ic, m, 1<<7, 10);
                }
                
                /* The mbufs are freed by the Net80211 stack */
                free(bf, M_WTAP_RXBUF);
        }
}

static void
wtap_newassoc(struct ieee80211_node *ni, int isnew)
{

        DWTAP_PRINTF("%s\n", __func__);
}

/*
 * Callback from the 802.11 layer to update WME parameters.
 */
static int
wtap_wme_update(struct ieee80211com *ic)
{

        DWTAP_PRINTF("%s\n", __func__);
        return 0;
}

static void
wtap_update_mcast(struct ieee80211com *ic)
{

        DWTAP_PRINTF("%s\n", __func__);
}

static void
wtap_update_promisc(struct ieee80211com *ic)
{

        DWTAP_PRINTF("%s\n", __func__);
}

static int
wtap_transmit(struct ieee80211com *ic, struct mbuf *m)
{
        struct ieee80211_node *ni =
            (struct ieee80211_node *) m->m_pkthdr.rcvif;
        struct ieee80211vap *vap = ni->ni_vap;
        struct wtap_vap *avp = WTAP_VAP(vap);

        if(ni == NULL){
                printf("m->m_pkthdr.rcvif is NULL we can't radiotap_tx\n");
        }else{
                if (ieee80211_radiotap_active_vap(vap))
                        ieee80211_radiotap_tx(vap, m);
        }
        if (m->m_flags & M_TXCB)
                ieee80211_process_callback(ni, m, 0);
        ieee80211_free_node(ni);
        return wtap_medium_enqueue(avp, m);
}

static struct ieee80211_node *
wtap_node_alloc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN])
{
        struct ieee80211_node *ni;

        DWTAP_PRINTF("%s\n", __func__);

        ni = malloc(sizeof(struct ieee80211_node), M_80211_NODE,
            M_NOWAIT|M_ZERO);
        if (ni == NULL)
                return (NULL);
        ieee80211_node_set_txrate_ht_mcsrate(ni, 2);
        return ni;
}

static void
wtap_node_free(struct ieee80211_node *ni)
{
        struct ieee80211com *ic = ni->ni_ic;
        struct wtap_softc *sc = ic->ic_softc;

        DWTAP_PRINTF("%s\n", __func__);
        sc->sc_node_free(ni);
}

int32_t
wtap_attach(struct wtap_softc *sc, const uint8_t *macaddr)
{
        struct ieee80211com *ic = &sc->sc_ic;

        DWTAP_PRINTF("%s\n", __func__);

        sc->up = 0;
        STAILQ_INIT(&sc->sc_rxbuf);
        sc->sc_tq = taskqueue_create("wtap_taskq", M_NOWAIT | M_ZERO,
            taskqueue_thread_enqueue, &sc->sc_tq);
        taskqueue_start_threads(&sc->sc_tq, 1, PI_SOFT, "%s taskQ", sc->name);
        NET_TASK_INIT(&sc->sc_rxtask, 0, wtap_rx_proc, sc);

        ic->ic_softc = sc;
        ic->ic_name = sc->name;
        ic->ic_phytype = IEEE80211_T_DS;
        ic->ic_opmode = IEEE80211_M_MBSS;
        ic->ic_caps = IEEE80211_C_MBSS | IEEE80211_C_IBSS;

        ic->ic_max_keyix = 128; /* A value read from Atheros ATH_KEYMAX */

        ic->ic_regdomain.regdomain = SKU_ETSI;
        ic->ic_regdomain.country = CTRY_SWEDEN;
        ic->ic_regdomain.location = 1; /* Indoors */
        ic->ic_regdomain.isocc[0] = 'S';
        ic->ic_regdomain.isocc[1] = 'E';

        ic->ic_nchans = 1;
        ic->ic_channels[0].ic_flags = IEEE80211_CHAN_B;
        ic->ic_channels[0].ic_freq = 2412;

        IEEE80211_ADDR_COPY(ic->ic_macaddr, macaddr);
        ieee80211_ifattach(ic);

        /* override default methods */
        ic->ic_newassoc = wtap_newassoc;
        ic->ic_wme.wme_update = wtap_wme_update;
        ic->ic_vap_create = wtap_vap_create;
        ic->ic_vap_delete = wtap_vap_delete;
        ic->ic_raw_xmit = wtap_raw_xmit;
        ic->ic_update_mcast = wtap_update_mcast;
        ic->ic_update_promisc = wtap_update_promisc;
        ic->ic_transmit = wtap_transmit;
        ic->ic_parent = wtap_parent;

        sc->sc_node_alloc = ic->ic_node_alloc;
        ic->ic_node_alloc = wtap_node_alloc;
        sc->sc_node_free = ic->ic_node_free;
        ic->ic_node_free = wtap_node_free;

        ic->ic_scan_start = wtap_scan_start;
        ic->ic_scan_end = wtap_scan_end;
        ic->ic_set_channel = wtap_set_channel;

        ieee80211_radiotap_attach(ic,
            &sc->sc_tx_th.wt_ihdr, sizeof(sc->sc_tx_th),
            WTAP_TX_RADIOTAP_PRESENT,
            &sc->sc_rx_th.wr_ihdr, sizeof(sc->sc_rx_th),
            WTAP_RX_RADIOTAP_PRESENT);

        /* Work here, we must find a way to populate the rate table */
#if 0
        if(ic->ic_rt == NULL){
                printf("no table for ic_curchan\n");
                ic->ic_rt = ieee80211_get_ratetable(&ic->ic_channels[0]);
        }
        printf("ic->ic_rt =%p\n", ic->ic_rt);
        printf("rate count %d\n", ic->ic_rt->rateCount);

        uint8_t code = ic->ic_rt->info[0].dot11Rate;
        uint8_t cix = ic->ic_rt->info[0].ctlRateIndex;
        uint8_t ctl_rate = ic->ic_rt->info[cix].dot11Rate;
        printf("code=%d, cix=%d, ctl_rate=%d\n", code, cix, ctl_rate);

        uint8_t rix0 = ic->ic_rt->rateCodeToIndex[130];
        uint8_t rix1 = ic->ic_rt->rateCodeToIndex[132];
        uint8_t rix2 = ic->ic_rt->rateCodeToIndex[139];
        uint8_t rix3 = ic->ic_rt->rateCodeToIndex[150];
        printf("rix0 %u,rix1 %u,rix2 %u,rix3 %u\n", rix0,rix1,rix2,rix3);
        printf("lpAckDuration=%u\n", ic->ic_rt->info[0].lpAckDuration);
        printf("rate=%d\n", ic->ic_rt->info[0].rateKbps);
#endif
        return 0;
}

int32_t
wtap_detach(struct wtap_softc *sc)
{
        struct ieee80211com *ic = &sc->sc_ic;

        DWTAP_PRINTF("%s\n", __func__);
        ieee80211_ageq_drain(&ic->ic_stageq);
        ieee80211_ifdetach(ic);
        return 0;
}

void
wtap_resume(struct wtap_softc *sc)
{

        DWTAP_PRINTF("%s\n", __func__);
}

void
wtap_suspend(struct wtap_softc *sc)
{

        DWTAP_PRINTF("%s\n", __func__);
}

void
wtap_shutdown(struct wtap_softc *sc)
{

        DWTAP_PRINTF("%s\n", __func__);
}

void
wtap_intr(struct wtap_softc *sc)
{

        DWTAP_PRINTF("%s\n", __func__);
}