/*
 * Copyright 2009, Colin Günther, coling@gmx.de. All rights reserved.
 * Copyright 2018-2024, Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 */


/*-
 * Copyright (c) 2003-2009 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.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, 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 DAMAGE.
 */


/*
 * IEEE 802.11 support (Haiku-specific code)
 */


#include "ieee80211_haiku.h"

extern "C" {
#       include <sys/kernel.h>
#       include <sys/mbuf.h>
#       include <sys/bus.h>
#       include <sys/sockio.h>

#       include <net/if.h>
#       include <net/if_media.h>
#       include <net/if_types.h>
#       include <net/if_var.h>

#       include "ieee80211_var.h"
};

#include <SupportDefs.h>

#include <util/KMessage.h>

#include <ether_driver.h>
#include <net_notifications.h>

#include <shared.h>


#define TRACE_WLAN
#ifdef TRACE_WLAN
#       define TRACE(x...) dprintf(x);
#else
#       define TRACE(x...) ;
#endif


#define MC_ALIGN(m, len)                                                                        \
do {                                                                                                            \
        (m)->m_data += (MCLBYTES - (len)) &~ (sizeof(long) - 1);\
} while (/* CONSTCOND */ 0)


static net_notifications_module_info* sNotificationModule;


/*
 * priv(9) NET80211 checks.
 * Return 0 if operation is allowed, E* (usually EPERM) otherwise.
 */
int
ieee80211_priv_check_vap_getkey(u_long cmd __unused,
     struct ieee80211vap *vap __unused, struct ifnet *ifp __unused)
{
        return 0;
}

int
ieee80211_priv_check_vap_manage(u_long cmd __unused,
     struct ieee80211vap *vap __unused, struct ifnet *ifp __unused)
{
        return 0;
}

int
ieee80211_priv_check_vap_setmac(u_long cmd __unused,
     struct ieee80211vap *vap __unused, struct ifnet *ifp __unused)
{
        return 0;
}

int
ieee80211_priv_check_create_vap(u_long cmd __unused,
    struct ieee80211vap *vap __unused, struct ifnet *ifp __unused)
{
        return 0;
}


static struct ifnet*
get_ifnet(device_t device, int& i)
{
        int unit = device_get_unit(device);

        for (i = 0; i < MAX_DEVICES; i++) {
                if (gDevices[i] != NULL && gDevices[i]->if_dunit == unit)
                        return gDevices[i];
        }

        return NULL;
}


status_t
init_wlan_stack(void)
{
        get_module(NET_NOTIFICATIONS_MODULE_NAME,
                (module_info**)&sNotificationModule);

        return B_OK;
}


void
uninit_wlan_stack(void)
{
        if (sNotificationModule != NULL)
                put_module(NET_NOTIFICATIONS_MODULE_NAME);
}


status_t
start_wlan(device_t device)
{
        struct ieee80211com* ic = ieee80211_find_com(device->nameunit);
        if (ic == NULL)
                return B_BAD_VALUE;

        struct ieee80211vap* vap = ic->ic_vap_create(ic, "wlan",
                device_get_unit(device),
                IEEE80211_M_STA,                // mode
                0,                                              // flags
                NULL,                                   // BSSID
                ic->ic_macaddr);                // MAC address

        if (vap == NULL)
                return B_ERROR;

        // ic_vap_create() established that gDevices[i] links to vap->iv_ifp now
        KASSERT(gDevices[gDeviceCount - 1] == vap->iv_ifp,
                ("start_wlan: gDevices[i] != vap->iv_ifp"));

        vap->iv_ifp->scan_done_sem = create_sem(0, "wlan scan done");

        // We aren't connected to a WLAN, yet.
        if_link_state_change(vap->iv_ifp, LINK_STATE_DOWN);

        dprintf("%s: wlan started.\n", __func__);

        return B_OK;
}


status_t
stop_wlan(device_t device)
{
        int i;
        struct ifnet* ifp = get_ifnet(device, i);
        if (ifp == NULL)
                return B_BAD_VALUE;

        delete_sem(ifp->scan_done_sem);

        struct ieee80211vap* vap = (ieee80211vap*)ifp->if_softc;
        struct ieee80211com* ic = vap->iv_ic;

        ic->ic_vap_delete(vap);

        // ic_vap_delete freed gDevices[i]
        KASSERT(gDevices[i] == NULL, ("stop_wlan: gDevices[i] != NULL"));

        return B_OK;
}


status_t
wlan_open(void* cookie)
{
        dprintf("wlan_open(%p)\n", cookie);
        struct ifnet* ifp = (struct ifnet*)cookie;

        ifp->if_init(ifp->if_softc);

        ifp->if_flags |= IFF_UP;
        ifp->if_ioctl(ifp, SIOCSIFFLAGS, NULL);

        return B_OK;
}


status_t
wlan_close(void* cookie)
{
        dprintf("wlan_close(%p)\n", cookie);
        struct ifnet* ifp = (struct ifnet*)cookie;

        ifp->if_flags &= ~IFF_UP;
        ifp->if_ioctl(ifp, SIOCSIFFLAGS, NULL);

        return release_sem_etc(ifp->scan_done_sem, 1, B_RELEASE_ALL);
}


status_t
wlan_control(void* cookie, uint32 op, void* arg, size_t length)
{
        struct ifnet* ifp = (struct ifnet*)cookie;

        switch (op) {
                case SIOCG80211:
                case SIOCS80211:
                {
                        // FreeBSD drivers assume that the request structure has already
                        // been copied into kernel space
                        struct ieee80211req request;
                        if (user_memcpy(&request, arg, sizeof(struct ieee80211req)) != B_OK)
                                return B_BAD_ADDRESS;

                        if (request.i_type == IEEE80211_IOC_HAIKU_COMPAT_WLAN_UP)
                                return wlan_open(cookie);
                        else if (request.i_type == IEEE80211_IOC_HAIKU_COMPAT_WLAN_DOWN)
                                return wlan_close(cookie);

                        TRACE("wlan_control: %" B_PRIu32 ", %d\n", op, request.i_type);
                        status_t status = ifp->if_ioctl(ifp, op, (caddr_t)&request);
                        if (status != B_OK)
                                return status;

                        if (op == SIOCG80211 && user_memcpy(arg, &request,
                                        sizeof(struct ieee80211req)) != B_OK)
                                return B_BAD_ADDRESS;
                        return B_OK;
                }
        }

        return B_BAD_VALUE;
}


void
net80211_get_random_bytes(void* p, size_t n)
{
        uint8_t* dp = (uint8_t*)p;

        while (n > 0) {
                uint32_t v = arc4random();
                size_t nb = n > sizeof(uint32_t) ? sizeof(uint32_t) : n;
                bcopy(&v, dp, n > sizeof(uint32_t) ? sizeof(uint32_t) : n);
                dp += sizeof(uint32_t), n -= nb;
        }
}


struct mbuf *
ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen)
{
        struct mbuf *m;
        u_int len;

        /*
         * NB: we know the mbuf routines will align the data area
         *     so we don't need to do anything special.
         */
        len = roundup2(headroom + pktlen, 4);
        KASSERT(len <= MCLBYTES, ("802.11 mgt frame too large: %u", len));
        if (len < MINCLSIZE) {
                m = m_gethdr(M_NOWAIT, MT_DATA);
                /*
                 * Align the data in case additional headers are added.
                 * This should only happen when a WEP header is added
                 * which only happens for shared key authentication mgt
                 * frames which all fit in MHLEN.
                 */
                if (m != NULL)
                        M_ALIGN(m, len);
        } else {
                m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
                if (m != NULL)
                        MC_ALIGN(m, len);
        }
        if (m != NULL) {
                m->m_data += headroom;
                *frm = (uint8_t*)m->m_data;
        }
        return m;
}


int
ieee80211_com_vincref(struct ieee80211vap *vap)
{
        uint32_t ostate;

        ostate = atomic_fetchadd_32(&vap->iv_com_state, IEEE80211_COM_REF_ADD);

        if (ostate & IEEE80211_COM_DETACHED) {
                atomic_subtract_32(&vap->iv_com_state, IEEE80211_COM_REF_ADD);
                return (ENETDOWN);
        }

        if (_IEEE80211_MASKSHIFT(ostate, IEEE80211_COM_REF) ==
            IEEE80211_COM_REF_MAX) {
                atomic_subtract_32(&vap->iv_com_state, IEEE80211_COM_REF_ADD);
                return (EOVERFLOW);
        }

        return (0);
}


void
ieee80211_com_vdecref(struct ieee80211vap *vap)
{
        uint32_t ostate;

        ostate = atomic_fetchadd_32(&vap->iv_com_state, -IEEE80211_COM_REF_ADD);

        KASSERT(_IEEE80211_MASKSHIFT(ostate, IEEE80211_COM_REF) != 0,
            ("com reference counter underflow"));

        (void) ostate;
}


void
ieee80211_com_vdetach(struct ieee80211vap *vap)
{
        int sleep_time;

        sleep_time = msecs_to_ticks(250);
        atomic_set_32(&vap->iv_com_state, IEEE80211_COM_DETACHED);
        while (_IEEE80211_MASKSHIFT(atomic_load_32(&vap->iv_com_state),
            IEEE80211_COM_REF) != 0)
                pause("comref", sleep_time);
}


/*
 * Decrements the reference-counter and
 * tests whether it became zero. If so, sets it to one.
 *
 * @return 1 reference-counter became zero
 * @return 0 reference-counter didn't became zero
 */
int
ieee80211_node_dectestref(struct ieee80211_node* ni)
{
        atomic_subtract_int(&ni->ni_refcnt, 1);
        return atomic_cmpset_int(&ni->ni_refcnt, 0, 1);
}


void
ieee80211_drain_ifq(struct ifqueue* ifq)
{
        struct ieee80211_node* ni;
        struct mbuf* m;

        for (;;) {
                IF_DEQUEUE(ifq, m);
                if (m == NULL)
                        break;

                ni = (struct ieee80211_node*)m->m_pkthdr.rcvif;
                KASSERT(ni != NULL, ("frame w/o node"));
                ieee80211_free_node(ni);
                m->m_pkthdr.rcvif = NULL;

                m_freem(m);
        }
}


void
ieee80211_flush_ifq(struct ifqueue* ifq, struct ieee80211vap* vap)
{
        struct ieee80211_node* ni;
        struct mbuf* m;
        struct mbuf** mprev;

        IF_LOCK(ifq);
        mprev = &ifq->ifq_head;
        while ((m = *mprev) != NULL) {
                ni = (struct ieee80211_node*)m->m_pkthdr.rcvif;
                if (ni != NULL && ni->ni_vap == vap) {
                        *mprev = m->m_nextpkt;
                                // remove from list
                        ifq->ifq_len--;

                        m_freem(m);
                        ieee80211_free_node(ni);
                                // reclaim ref
                } else
                        mprev = &m->m_nextpkt;
        }
        // recalculate tail ptr
        m = ifq->ifq_head;
        for (; m != NULL && m->m_nextpkt != NULL; m = m->m_nextpkt);
        ifq->ifq_tail = m;
        IF_UNLOCK(ifq);
}


#ifndef __NO_STRICT_ALIGNMENT
/*
 * Re-align the payload in the mbuf.  This is mainly used (right now)
 * to handle IP header alignment requirements on certain architectures.
 */
extern "C" struct mbuf *
ieee80211_realign(struct ieee80211vap *vap, struct mbuf *m, size_t align)
{
        int pktlen, space;
        struct mbuf *n;

        pktlen = m->m_pkthdr.len;
        space = pktlen + align;
        if (space < MINCLSIZE)
                n = m_gethdr(M_NOWAIT, MT_DATA);
        else {
                n = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR,
                    space <= MCLBYTES ?     MCLBYTES :
#if MJUMPAGESIZE != MCLBYTES
                    space <= MJUMPAGESIZE ? MJUMPAGESIZE :
#endif
                    space <= MJUM9BYTES ?   MJUM9BYTES : MJUM16BYTES);
        }
        if (__predict_true(n != NULL)) {
                m_move_pkthdr(n, m);
                n->m_data = (caddr_t)(ALIGN(n->m_data + align) - align);
                m_copydata(m, 0, pktlen, mtod(n, caddr_t));
                n->m_len = pktlen;
        } else {
                IEEE80211_DISCARD(vap, IEEE80211_MSG_ANY,
                    mtod(m, const struct ieee80211_frame *), NULL,
                    "%s", "no mbuf to realign");
                vap->iv_stats.is_rx_badalign++;
        }
        m_freem(m);
        return n;
}
#endif /* !__NO_STRICT_ALIGNMENT */


int
ieee80211_add_callback(struct mbuf* m,
        void (*func)(struct ieee80211_node*, void*, int), void* arg)
{
        struct m_tag* mtag;
        struct ieee80211_cb* cb;

        mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_CALLBACK,
                sizeof(struct ieee80211_cb), M_NOWAIT);
        if (mtag == NULL)
                return 0;

        cb = (struct ieee80211_cb*)(mtag+1);
        cb->func = func;
        cb->arg = arg;
        m_tag_prepend(m, mtag);
        m->m_flags |= M_TXCB;
        return 1;
}


void
ieee80211_process_callback(struct ieee80211_node* ni, struct mbuf* m,
        int status)
{
        struct m_tag* mtag;

        mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_CALLBACK, NULL);
        if (mtag != NULL) {
                struct ieee80211_cb* cb = (struct ieee80211_cb*)(mtag+1);
                cb->func(ni, cb->arg, status);
        }
}


int
ieee80211_add_xmit_params(struct mbuf *m,
        const struct ieee80211_bpf_params *params)
{
        struct m_tag *mtag;
        struct ieee80211_tx_params *tx;

        mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_XMIT_PARAMS,
                sizeof(struct ieee80211_tx_params), M_NOWAIT);
        if (mtag == NULL)
                return (0);

        tx = (struct ieee80211_tx_params *)(mtag+1);
        memcpy(&tx->params, params, sizeof(struct ieee80211_bpf_params));
        m_tag_prepend(m, mtag);
        return (1);
}


int
ieee80211_get_xmit_params(struct mbuf *m,
        struct ieee80211_bpf_params *params)
{
        struct m_tag *mtag;
        struct ieee80211_tx_params *tx;

        mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_XMIT_PARAMS,
                NULL);
        if (mtag == NULL)
                return (-1);
        tx = (struct ieee80211_tx_params *)(mtag + 1);
        memcpy(params, &tx->params, sizeof(struct ieee80211_bpf_params));
        return (0);
}


/*
 * Add RX parameters to the given mbuf.
 *
 * Returns 1 if OK, 0 on error.
 */
int
ieee80211_add_rx_params(struct mbuf *m, const struct ieee80211_rx_stats *rxs)
{
        struct m_tag *mtag;
        struct ieee80211_rx_params *rx;

        mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_RECV_PARAMS,
                sizeof(struct ieee80211_rx_stats), M_NOWAIT);
        if (mtag == NULL)
                return (0);

        rx = (struct ieee80211_rx_params *)(mtag + 1);
        memcpy(&rx->params, rxs, sizeof(*rxs));
        m_tag_prepend(m, mtag);
        return (1);
}


int
ieee80211_get_rx_params(struct mbuf *m, struct ieee80211_rx_stats *rxs)
{
        struct m_tag *mtag;
        struct ieee80211_rx_params *rx;

        mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_RECV_PARAMS,
                NULL);
        if (mtag == NULL)
                return (-1);
        rx = (struct ieee80211_rx_params *)(mtag + 1);
        memcpy(rxs, &rx->params, sizeof(*rxs));
        return (0);
}


const struct ieee80211_rx_stats *
ieee80211_get_rx_params_ptr(struct mbuf *m)
{
        struct m_tag *mtag;
        struct ieee80211_rx_params *rx;

        mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_RECV_PARAMS,
            NULL);
        if (mtag == NULL)
                return (NULL);
        rx = (struct ieee80211_rx_params *)(mtag + 1);
        return (&rx->params);
}


/*
 * Add TOA parameters to the given mbuf.
 */
int
ieee80211_add_toa_params(struct mbuf *m, const struct ieee80211_toa_params *p)
{
        struct m_tag *mtag;
        struct ieee80211_toa_params *rp;

        mtag = m_tag_alloc(MTAG_ABI_NET80211, NET80211_TAG_TOA_PARAMS,
            sizeof(struct ieee80211_toa_params), M_NOWAIT);
        if (mtag == NULL)
                return (0);

        rp = (struct ieee80211_toa_params *)(mtag + 1);
        memcpy(rp, p, sizeof(*rp));
        m_tag_prepend(m, mtag);
        return (1);
}


int
ieee80211_get_toa_params(struct mbuf *m, struct ieee80211_toa_params *p)
{
        struct m_tag *mtag;
        struct ieee80211_toa_params *rp;

        mtag = m_tag_locate(m, MTAG_ABI_NET80211, NET80211_TAG_TOA_PARAMS,
            NULL);
        if (mtag == NULL)
                return (0);
        rp = (struct ieee80211_toa_params *)(mtag + 1);
        if (p != NULL)
                memcpy(p, rp, sizeof(*p));
        return (1);
}


/*
 * Transmit a frame to the parent interface.
 */
int
ieee80211_parent_xmitpkt(struct ieee80211com *ic, struct mbuf *m)
{
        int error;

        /*
         * Assert the IC TX lock is held - this enforces the
         * processing -> queuing order is maintained
         */
        IEEE80211_TX_LOCK_ASSERT(ic);
        error = ic->ic_transmit(ic, m);
        if (error) {
                struct ieee80211_node *ni;

                ni = (struct ieee80211_node *)m->m_pkthdr.rcvif;

                /* XXX number of fragments */
                if_inc_counter(ni->ni_vap->iv_ifp, IFCOUNTER_OERRORS, 1);
                ieee80211_free_node(ni);
                ieee80211_free_mbuf(m);
        }
        return (error);
}


/*
 * Fetch the VAP name.
 *
 * This returns a const char pointer suitable for debugging,
 * but don't expect it to stick around for much longer.
 */
const char *
ieee80211_get_vap_ifname(struct ieee80211vap *vap)
{
        if (vap->iv_ifp == NULL)
                return "(none)";
        return vap->iv_ifp->if_xname;
}


void
ieee80211_vap_sync_mac_address(struct ieee80211vap *vap)
{
        const struct ifnet *ifp = vap->iv_ifp;

        /*
         * Check if the MAC address was changed
         * via SIOCSIFLLADDR ioctl.
         *
         * NB: device may be detached during initialization;
         * use if_ioctl for existence check.
         */
        if (ifp->if_ioctl == ieee80211_ioctl &&
                (ifp->if_flags & IFF_UP) == 0 &&
                !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp)))
                IEEE80211_ADDR_COPY(vap->iv_myaddr, IF_LLADDR(ifp));
}


void
ieee80211_vap_copy_mac_address(struct ieee80211vap *vap)
{
        IEEE80211_ADDR_COPY(vap->iv_myaddr, IF_LLADDR(vap->iv_ifp));
}


void
ieee80211_vap_deliver_data(struct ieee80211vap *vap, struct mbuf *m)
{
        if_input(vap->iv_ifp, m);
}


bool
ieee80211_vap_ifp_check_is_monitor(struct ieee80211vap *vap)
{
        return ((if_getflags(vap->iv_ifp) & IFF_MONITOR) != 0);
}


bool
ieee80211_vap_ifp_check_is_simplex(struct ieee80211vap *vap)
{
        return ((if_getflags(vap->iv_ifp) & IFF_SIMPLEX) != 0);
}


bool
ieee80211_vap_ifp_check_is_running(struct ieee80211vap *vap)
{
        return ((if_getdrvflags(vap->iv_ifp) & IFF_DRV_RUNNING) != 0);
}


void
ieee80211_vap_ifp_set_running_state(struct ieee80211vap *vap, bool state)
{
        if (state)
                if_setdrvflagbits(vap->iv_ifp, IFF_DRV_RUNNING, 0);
        else
                if_setdrvflagbits(vap->iv_ifp, 0, IFF_DRV_RUNNING);
}


const uint8_t *
ieee80211_vap_get_broadcast_address(struct ieee80211vap *vap)
{
        return (if_getbroadcastaddr(vap->iv_ifp));
}


#ifdef DEBUGNET
static void
ieee80211_debugnet_init(struct ifnet *ifp, int *nrxr, int *ncl, int *clsize)
{
        struct ieee80211vap *vap;
        struct ieee80211com *ic;

        vap = if_getsoftc(ifp);
        ic = vap->iv_ic;

        IEEE80211_LOCK(ic);
        ic->ic_debugnet_meth->dn8_init(ic, nrxr, ncl, clsize);
        IEEE80211_UNLOCK(ic);
}

static void
ieee80211_debugnet_event(struct ifnet *ifp, enum debugnet_ev ev)
{
        struct ieee80211vap *vap;
        struct ieee80211com *ic;

        vap = if_getsoftc(ifp);
        ic = vap->iv_ic;

        IEEE80211_LOCK(ic);
        ic->ic_debugnet_meth->dn8_event(ic, ev);
        IEEE80211_UNLOCK(ic);
}

static int
ieee80211_debugnet_transmit(struct ifnet *ifp, struct mbuf *m)
{
        return (ieee80211_vap_transmit(ifp, m));
}

static int
ieee80211_debugnet_poll(struct ifnet *ifp, int count)
{
        struct ieee80211vap *vap;
        struct ieee80211com *ic;

        vap = if_getsoftc(ifp);
        ic = vap->iv_ic;

        return (ic->ic_debugnet_meth->dn8_poll(ic, count));
}
#endif

/*
 * Transmit a frame to the VAP interface.
 */
int
ieee80211_vap_xmitpkt(struct ieee80211vap *vap, struct mbuf *m)
{
        struct ifnet *ifp = vap->iv_ifp;

        /*
         * When transmitting via the VAP, we shouldn't hold
         * any IC TX lock as the VAP TX path will acquire it.
         */
        IEEE80211_TX_UNLOCK_ASSERT(vap->iv_ic);

        return (ifp->if_transmit(ifp, m));

}


void
ieee80211_sysctl_vattach(struct ieee80211vap* vap)
{
        vap->iv_debug = IEEE80211_MSG_XRATE
                | IEEE80211_MSG_NODE
                | IEEE80211_MSG_ASSOC
                | IEEE80211_MSG_AUTH
                | IEEE80211_MSG_STATE
                | IEEE80211_MSG_WME
                | IEEE80211_MSG_DOTH
                | IEEE80211_MSG_INACT
                | IEEE80211_MSG_ROAM;
}


void
ieee80211_sysctl_vdetach(struct ieee80211vap* vap)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_vap_destroy(struct ieee80211vap* vap)
{
        struct ieee80211com* ic = vap->iv_ic;

        ic->ic_vap_delete(vap);
        dprintf("%s: done.\n", __func__);
}


void
ieee80211_load_module(const char* modname)
{
#if 0
        dprintf("%s not implemented, yet: modname %s\n", __func__, modname);
#endif
}


void
ieee80211_notify_node_join(struct ieee80211_node* ni, int newassoc)
{
        struct ieee80211vap* vap = ni->ni_vap;
        struct ifnet* ifp = vap->iv_ifp;

        TRACE("%s\n", __FUNCTION__);

        if (ni == vap->iv_bss)
                if_link_state_change(ifp, LINK_STATE_UP);

        if (sNotificationModule != NULL) {
                char messageBuffer[512];
                KMessage message;
                message.SetTo(messageBuffer, sizeof(messageBuffer), B_NETWORK_MONITOR);
                message.AddInt32("opcode", B_NETWORK_WLAN_JOINED);
                message.AddString("interface", ifp->device_name);
                // TODO: add data about the node

                sNotificationModule->send_notification(&message);
        }
}


void
ieee80211_notify_node_leave(struct ieee80211_node* ni)
{
        struct ieee80211vap* vap = ni->ni_vap;
        struct ifnet* ifp = vap->iv_ifp;

        if (ni == vap->iv_bss)
                if_link_state_change(ifp, LINK_STATE_DOWN);

        TRACE("%s\n", __FUNCTION__);

        if (sNotificationModule != NULL) {
                char messageBuffer[512];
                KMessage message;
                message.SetTo(messageBuffer, sizeof(messageBuffer), B_NETWORK_MONITOR);
                message.AddInt32("opcode", B_NETWORK_WLAN_LEFT);
                message.AddString("interface", ifp->device_name);
                // TODO: add data about the node

                sNotificationModule->send_notification(&message);
        }
}


void
ieee80211_notify_scan_done(struct ieee80211vap* vap)
{
        release_sem_etc(vap->iv_ifp->scan_done_sem, 1,
                B_DO_NOT_RESCHEDULE | B_RELEASE_ALL);

        TRACE("%s\n", __FUNCTION__);

        if (sNotificationModule != NULL) {
                char messageBuffer[512];
                KMessage message;
                message.SetTo(messageBuffer, sizeof(messageBuffer), B_NETWORK_MONITOR);
                message.AddInt32("opcode", B_NETWORK_WLAN_SCANNED);
                message.AddString("interface", vap->iv_ifp->device_name);

                sNotificationModule->send_notification(&message);
        }
}


void
ieee80211_notify_replay_failure(struct ieee80211vap* vap,
        const struct ieee80211_frame* wh, const struct ieee80211_key* k,
        u_int64_t rsc, int tid)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_notify_michael_failure(struct ieee80211vap* vap,
        const struct ieee80211_frame* wh, ieee80211_keyix keyix)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_notify_wds_discover(struct ieee80211_node* ni)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_notify_csa(struct ieee80211com* ic,
        const struct ieee80211_channel* c, int mode, int count)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_notify_radar(struct ieee80211com* ic,
        const struct ieee80211_channel* c)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_notify_cac(struct ieee80211com* ic,
        const struct ieee80211_channel* c, enum ieee80211_notify_cac_event type)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_notify_node_deauth(struct ieee80211_node* ni)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_notify_node_auth(struct ieee80211_node* ni)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_notify_country(struct ieee80211vap* vap,
        const uint8_t bssid[IEEE80211_ADDR_LEN], const uint8_t cc[2])
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_notify_radio(struct ieee80211com* ic, int state)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


extern "C" void
ieee80211_notify_ifnet_change(struct ieee80211vap *vap, int if_flags_mask)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_sysctl_attach(struct ieee80211com* ic)
{
        dprintf("%s not implemented, yet.\n", __func__);
}


void
ieee80211_sysctl_detach(struct ieee80211com* ic)
{
        dprintf("%s not implemented, yet.\n", __func__);
}

void
net80211_printf(const char *fmt, ...)
{
        va_list ap;

        va_start(ap, fmt);
        vprintf(fmt, ap);
        va_end(ap);
}

void
net80211_vap_printf(const struct ieee80211vap *vap, const char *fmt, ...)
{
        va_list ap;
        printf("%s: ", if_name(vap->iv_ifp));
        va_start(ap, fmt);
        vprintf(fmt, ap);
        va_end(ap);
}

void
net80211_ic_printf(const struct ieee80211com *ic, const char *fmt, ...)
{
        va_list ap;
        printf("%s: ", ic->ic_name);
        va_start(ap, fmt);
        vprintf(fmt, ap);
        va_end(ap);
}