/*-
 * Copyright (c) 2003-2008 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.
 *
 * $FreeBSD: head/sys/net80211/ieee80211_freebsd.h 195618 2009-07-11 15:02:45Z rpaulo $
 */
#ifndef _NET80211_IEEE80211_DRAGONFLY_H_
#define _NET80211_IEEE80211_DRAGONFLY_H_

#ifdef _KERNEL

#include <sys/param.h>
#include <sys/types.h>
#include <sys/serialize.h>
#include <sys/sysctl.h>
#include <sys/condvar.h>
#include <sys/lock.h>
#include <sys/taskqueue.h>

#include <sys/mutex2.h>
#include <sys/serialize2.h>

#ifndef IF_PREPEND_LIST

/* XXX all are prepended to normal queue */
#define _IF_PREPEND_LIST(ifq, mhead, mtail, mcount, bcnt) do {  \
        (mtail)->m_nextpkt = (ifq)->ifsq_norm_head;             \
        if ((ifq)->ifsq_norm_tail == NULL)                      \
                (ifq)->ifsq_norm_tail = (mtail);                \
        (ifq)->ifsq_norm_head = (mhead);                        \
        (ifq)->ifsq_len += (mcount);                            \
        (ifq)->ifsq_bcnt += (bcnt);                             \
} while (0)

#define IF_PREPEND_LIST(ifq, mhead, mtail, mcount, bcnt) do {   \
        wlan_assert_serialized();                               \
        _IF_PREPEND_LIST(ifq, mhead, mtail, mcount, bcnt);      \
} while (0)

#endif /* IF_PREPEND_LIST */

/*
 * Global serializer (operates like a non-reentrant lockmgr lock)
 */
extern struct lwkt_serialize wlan_global_serializer;
extern int ieee80211_force_swcrypto;

#define wlan_serialize_enter()  _wlan_serialize_enter(__func__)
#define wlan_serialize_exit()   _wlan_serialize_exit(__func__)
#define wlan_serialize_push()   _wlan_serialize_push(__func__)
#define wlan_serialize_pop(wst) _wlan_serialize_pop(__func__, wst)
#define wlan_is_serialized()    _wlan_is_serialized()
void _wlan_serialize_enter(const char *funcname);
void _wlan_serialize_exit(const char *funcname);
int  _wlan_serialize_push(const char *funcname);
void _wlan_serialize_pop(const char *funcname, int wst);
int  _wlan_is_serialized(void);
int wlan_serialize_sleep(void *ident, int flags, const char *wmesg, int timo);

static __inline void
wlan_assert_serialized(void)
{
        ASSERT_SERIALIZED(&wlan_global_serializer);
}

static __inline void
wlan_assert_notserialized(void)
{
        ASSERT_NOT_SERIALIZED(&wlan_global_serializer);
}

/*
 * Node reference counting definitions.
 *
 * ieee80211_node_initref       initialize the reference count to 1
 * ieee80211_node_incref        add a reference
 * ieee80211_node_decref        remove a reference
 * ieee80211_node_dectestref    remove a reference and return 1 if this
 *                              is the last reference, otherwise 0
 * ieee80211_node_refcnt        reference count for printing (only)
 */
#include <machine/atomic.h>

#define ieee80211_node_initref(_ni) \
        do { ((_ni)->ni_refcnt = 1); } while (0)
#define ieee80211_node_incref(_ni) \
        atomic_add_int(&(_ni)->ni_refcnt, 1)
#define ieee80211_node_decref(_ni) \
        atomic_subtract_int(&(_ni)->ni_refcnt, 1)
struct ieee80211_node;
int     ieee80211_node_dectestref(struct ieee80211_node *ni);
#define ieee80211_node_refcnt(_ni)      (_ni)->ni_refcnt

struct ifqueue;
struct ieee80211vap;
struct ieee80211com;
void    ieee80211_flush_ifq(struct ifaltq *, struct ieee80211vap *);

void    ieee80211_vap_destroy(struct ieee80211vap *);
int     ieee80211_vap_xmitpkt(struct ieee80211vap *vap, struct mbuf *m);
int     ieee80211_parent_xmitpkt(struct ieee80211com *ic, struct mbuf *m);
int     ieee80211_handoff(struct ifnet *, struct mbuf *);
uint16_t ieee80211_txtime(struct ieee80211_node *, u_int, uint8_t, uint32_t);

#define IFNET_IS_UP_RUNNING(_ifp) \
        (((_ifp)->if_flags & IFF_UP) && \
         ((_ifp)->if_flags & IFF_RUNNING))

/* XXX TODO: cap these at 1, as hz may not be 1000 */
#define msecs_to_ticks(ms)      (((ms)*hz)/1000)
#define ticks_to_msecs(t)       (1000*(t) / hz)
#define ticks_to_secs(t)        ((t) / hz)

#define ieee80211_time_after(a,b)       ((long)(b) - (long)(a) < 0)
#define ieee80211_time_before(a,b)      ieee80211_time_after(b,a)
#define ieee80211_time_after_eq(a,b)    ((long)(a) - (long)(b) >= 0)
#define ieee80211_time_before_eq(a,b)   ieee80211_time_after_eq(b,a)

struct mbuf *ieee80211_getmgtframe(uint8_t **frm, int headroom, int pktlen);

/* tx path usage */
#define M_ENCAP         M_PROTO1                /* 802.11 encap done */
#define M_EAPOL         M_PROTO3                /* PAE/EAPOL frame */
#define M_PWR_SAV       M_PROTO4                /* bypass PS handling */
#define M_MORE_DATA     M_PROTO5                /* more data frames to follow */
#define M_FF            M_PROTO6                /* fast frame / A-MSDU */
#define M_TXCB          M_PROTO7                /* do tx complete callback */
#define M_AMPDU_MPDU    M_PROTO8                /* ok for A-MPDU aggregation */
#define M_80211_TX \
        (M_FRAG|M_FIRSTFRAG|M_LASTFRAG|M_ENCAP|M_EAPOL|M_PWR_SAV|\
         M_MORE_DATA|M_FF|M_TXCB|M_AMPDU_MPDU)

/* rx path usage */
#define M_AMPDU         M_PROTO1                /* A-MPDU subframe */
#define M_WEP           M_PROTO2                /* WEP done by hardware */
#if 0
#define M_AMPDU_MPDU    M_PROTO8                /* A-MPDU re-order done */
#endif
#define M_80211_RX      (M_AMPDU|M_WEP|M_AMPDU_MPDU)

#define IEEE80211_MBUF_TX_FLAG_BITS \
        "\20\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_ENCAP\6M_WEP\7M_EAPOL" \
        "\10M_PWR_SAV\11M_MORE_DATA\12M_BCAST\13M_MCAST\14M_FRAG\15M_FIRSTFRAG" \
        "\16M_LASTFRAG\17M_SKIP_FIREWALL\20M_FREELIST\21M_VLANTAG\22M_PROMISC" \
        "\23M_NOFREE\24M_FF\25M_TXCB\26M_AMPDU_MPDU\27M_FLOWID"

#define IEEE80211_MBUF_RX_FLAG_BITS \
        "\20\1M_EXT\2M_PKTHDR\3M_EOR\4M_RDONLY\5M_AMPDU\6M_WEP\7M_PROTO3" \
        "\10M_PROTO4\11M_PROTO5\12M_BCAST\13M_MCAST\14M_FRAG\15M_FIRSTFRAG" \
        "\16M_LASTFRAG\17M_SKIP_FIREWALL\20M_FREELIST\21M_VLANTAG\22M_PROMISC" \
        "\23M_NOFREE\24M_PROTO6\25M_PROTO7\26M_AMPDU_MPDU\27M_FLOWID"

/*
 * Store WME access control bits in the vlan tag.
 * This is safe since it's done after the packet is classified
 * (where we use any previous tag) and because it's passed
 * directly in to the driver and there's no chance someone
 * else will clobber them on us.
 */
#define M_WME_SETAC(m, ac) \
        ((m)->m_pkthdr.ether_vlantag = (ac))
#define M_WME_GETAC(m)  ((m)->m_pkthdr.ether_vlantag)

/*
 * Mbufs on the power save queue are tagged with an age and
 * timed out.  We reuse the hardware checksum field in the
 * mbuf packet header to store this data.
 */
#define M_AGE_SET(m,v)          (m->m_pkthdr.csum_data = v)
#define M_AGE_GET(m)            (m->m_pkthdr.csum_data)
#define M_AGE_SUB(m,adj)        (m->m_pkthdr.csum_data -= adj)

/*
 * Store the sequence number.
 */
#define M_SEQNO_SET(m, seqno) \
        ((m)->m_pkthdr.wlan_seqno = (seqno))
#define M_SEQNO_GET(m)  ((m)->m_pkthdr.wlan_seqno)

#define MTAG_ABI_NET80211       1132948340      /* net80211 ABI */

struct ieee80211_cb {
        void    (*func)(struct ieee80211_node *, void *, int status);
        void    *arg;
};
#define NET80211_TAG_CALLBACK   0       /* xmit complete callback */
int     ieee80211_add_callback(struct mbuf *m,
                void (*func)(struct ieee80211_node *, void *, int), void *arg);
void    ieee80211_process_callback(struct ieee80211_node *, struct mbuf *, int);

#define NET80211_TAG_XMIT_PARAMS        1
/* See below; this is after the bpf_params definition */

void    get_random_bytes(void *, size_t);

#define NET80211_TAG_RECV_PARAMS        2

void    ieee80211_sysctl_attach(struct ieee80211com *);
void    ieee80211_sysctl_detach(struct ieee80211com *);
void    ieee80211_sysctl_vattach(struct ieee80211vap *);
void    ieee80211_sysctl_vdetach(struct ieee80211vap *);

SYSCTL_DECL(_net_wlan);
int     ieee80211_sysctl_msecs_ticks(SYSCTL_HANDLER_ARGS);

void    ieee80211_load_module(const char *);

/*
 * A "policy module" is an adjunct module to net80211 that provides
 * functionality that typically includes policy decisions.  This
 * modularity enables extensibility and vendor-supplied functionality.
 */
#define _IEEE80211_POLICY_MODULE(policy, name, version)                 \
typedef void (*policy##_setup)(int);                                    \
SET_DECLARE(policy##_set, policy##_setup);                              \
static int                                                              \
wlan_##name##_modevent(module_t mod, int type, void *unused)            \
{                                                                       \
        policy##_setup * const *iter, f;                                \
        int error;                                                      \
                                                                        \
        switch (type) {                                                 \
        case MOD_LOAD:                                                  \
                SET_FOREACH(iter, policy##_set) {                       \
                        f = (void*) *iter;                              \
                        f(type);                                        \
                }                                                       \
                error = 0;                                              \
                break;                                                  \
        case MOD_UNLOAD:                                                \
                error = 0;                                              \
                if (nrefs) {                                            \
                        kprintf("wlan_" #name ": still in use (%u "     \
                                "dynamic refs)\n",                      \
                                nrefs);                                 \
                        error = EBUSY;                                  \
                } else if (type == MOD_UNLOAD) {                        \
                        SET_FOREACH(iter, policy##_set) {               \
                                f = (void*) *iter;                      \
                                f(type);                                \
                        }                                               \
                }                                                       \
                break;                                                  \
        default:                                                        \
                error = EINVAL;                                         \
                break;                                                  \
        }                                                               \
                                                                        \
        return error;                                                   \
}                                                                       \
static moduledata_t name##_mod = {                                      \
        "wlan_" #name,                                                  \
        wlan_##name##_modevent,                                         \
        0                                                               \
};                                                                      \
DECLARE_MODULE(wlan_##name, name##_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);\
MODULE_VERSION(wlan_##name, version);                                   \
MODULE_DEPEND(wlan_##name, wlan, 1, 1, 1)

/*
 * Crypto modules implement cipher support.
 */
#define IEEE80211_CRYPTO_MODULE(name, version)                          \
_IEEE80211_POLICY_MODULE(crypto, name, version);                        \
static void                                                             \
name##_modevent(int type)                                               \
{                                                                       \
        /* wlan already serialized! */                                  \
        if (type == MOD_LOAD)                                           \
                ieee80211_crypto_register(&name);                       \
        else                                                            \
                ieee80211_crypto_unregister(&name);                     \
}                                                                       \
TEXT_SET(crypto##_set, name##_modevent)

/*
 * Scanner modules provide scanning policy.
 */
#define IEEE80211_SCANNER_MODULE(name, version)                         \
        _IEEE80211_POLICY_MODULE(scanner, name, version)

#define IEEE80211_SCANNER_ALG(name, alg, v)                             \
static void                                                             \
name##_modevent(int type)                                               \
{                                                                       \
        /* wlan already serialized! */                                  \
        if (type == MOD_LOAD)                                           \
                ieee80211_scanner_register(alg, &v);                    \
        else                                                            \
                ieee80211_scanner_unregister(alg, &v);                  \
}                                                                       \
TEXT_SET(scanner_set, name##_modevent);                                 \

/*
 * ACL modules implement acl policy.
 */
#define IEEE80211_ACL_MODULE(name, alg, version)                        \
_IEEE80211_POLICY_MODULE(acl, name, version);                           \
static void                                                             \
alg##_modevent(int type)                                                \
{                                                                       \
        /* wlan already serialized! */                                  \
        if (type == MOD_LOAD)                                           \
                ieee80211_aclator_register(&alg);                       \
        else                                                            \
                ieee80211_aclator_unregister(&alg);                     \
}                                                                       \
TEXT_SET(acl_set, alg##_modevent);                                      \

/*
 * Authenticator modules handle 802.1x/WPA authentication.
 */
#define IEEE80211_AUTH_MODULE(name, version)                            \
        _IEEE80211_POLICY_MODULE(auth, name, version)

#define IEEE80211_AUTH_ALG(name, alg, v)                                \
static void                                                             \
name##_modevent(int type)                                               \
{                                                                       \
        /* wlan already serialized! */                                  \
        if (type == MOD_LOAD)                                           \
                ieee80211_authenticator_register(alg, &v);              \
        else                                                            \
                ieee80211_authenticator_unregister(alg);                \
}                                                                       \
TEXT_SET(auth_set, name##_modevent)

/*
 * Rate control modules provide tx rate control support.
 */
#define IEEE80211_RATECTL_MODULE(alg, version)                          \
        _IEEE80211_POLICY_MODULE(ratectl, alg, version);                \

#define IEEE80211_RATECTL_ALG(name, alg, v)                             \
static void                                                             \
alg##_modevent(int type)                                                \
{                                                                       \
        /* wlan already serialized! */                                  \
        if (type == MOD_LOAD)                                           \
                ieee80211_ratectl_register(alg, &v);                    \
        else                                                            \
                ieee80211_ratectl_unregister(alg);                      \
}                                                                       \
TEXT_SET(ratectl##_set, alg##_modevent)

struct ieee80211req;
typedef int ieee80211_ioctl_getfunc(struct ieee80211vap *,
    struct ieee80211req *);
SET_DECLARE(ieee80211_ioctl_getset, ieee80211_ioctl_getfunc);
#define IEEE80211_IOCTL_GET(_name, _get) TEXT_SET(ieee80211_ioctl_getset, _get)

typedef int ieee80211_ioctl_setfunc(struct ieee80211vap *,
    struct ieee80211req *);
SET_DECLARE(ieee80211_ioctl_setset, ieee80211_ioctl_setfunc);
#define IEEE80211_IOCTL_SET(_name, _set) TEXT_SET(ieee80211_ioctl_setset, _set)
#endif /* _KERNEL */

/* XXX this stuff belongs elsewhere */
/*
 * Message formats for messages from the net80211 layer to user
 * applications via the routing socket.  These messages are appended
 * to an if_announcemsghdr structure.
 */
struct ieee80211_join_event {
        uint8_t         iev_addr[6];
};

struct ieee80211_leave_event {
        uint8_t         iev_addr[6];
};

struct ieee80211_replay_event {
        uint8_t         iev_src[6];     /* src MAC */
        uint8_t         iev_dst[6];     /* dst MAC */
        uint8_t         iev_cipher;     /* cipher type */
        uint8_t         iev_keyix;      /* key id/index */
        uint64_t        iev_keyrsc;     /* RSC from key */
        uint64_t        iev_rsc;        /* RSC from frame */
};

struct ieee80211_michael_event {
        uint8_t         iev_src[6];     /* src MAC */
        uint8_t         iev_dst[6];     /* dst MAC */
        uint8_t         iev_cipher;     /* cipher type */
        uint8_t         iev_keyix;      /* key id/index */
};

struct ieee80211_wds_event {
        uint8_t         iev_addr[6];
};

struct ieee80211_csa_event {
        uint32_t        iev_flags;      /* channel flags */
        uint16_t        iev_freq;       /* setting in Mhz */
        uint8_t         iev_ieee;       /* IEEE channel number */
        uint8_t         iev_mode;       /* CSA mode */
        uint8_t         iev_count;      /* CSA count */
};

struct ieee80211_cac_event {
        uint32_t        iev_flags;      /* channel flags */
        uint16_t        iev_freq;       /* setting in Mhz */
        uint8_t         iev_ieee;       /* IEEE channel number */
        /* XXX timestamp? */
        uint8_t         iev_type;       /* IEEE80211_NOTIFY_CAC_* */
};

struct ieee80211_radar_event {
        uint32_t        iev_flags;      /* channel flags */
        uint16_t        iev_freq;       /* setting in Mhz */
        uint8_t         iev_ieee;       /* IEEE channel number */
        /* XXX timestamp? */
};

struct ieee80211_auth_event {
        uint8_t         iev_addr[6];
};

struct ieee80211_deauth_event {
        uint8_t         iev_addr[6];
};

struct ieee80211_country_event {
        uint8_t         iev_addr[6];
        uint8_t         iev_cc[2];      /* ISO country code */
};

struct ieee80211_radio_event {
        uint8_t         iev_state;      /* 1 on, 0 off */
};

#define RTM_IEEE80211_ASSOC     100     /* station associate (bss mode) */
#define RTM_IEEE80211_REASSOC   101     /* station re-associate (bss mode) */
#define RTM_IEEE80211_DISASSOC  102     /* station disassociate (bss mode) */
#define RTM_IEEE80211_JOIN      103     /* station join (ap mode) */
#define RTM_IEEE80211_LEAVE     104     /* station leave (ap mode) */
#define RTM_IEEE80211_SCAN      105     /* scan complete, results available */
#define RTM_IEEE80211_REPLAY    106     /* sequence counter replay detected */
#define RTM_IEEE80211_MICHAEL   107     /* Michael MIC failure detected */
#define RTM_IEEE80211_REJOIN    108     /* station re-associate (ap mode) */
#define RTM_IEEE80211_WDS       109     /* WDS discovery (ap mode) */
#define RTM_IEEE80211_CSA       110     /* Channel Switch Announcement event */
#define RTM_IEEE80211_RADAR     111     /* radar event */
#define RTM_IEEE80211_CAC       112     /* Channel Availability Check event */
#define RTM_IEEE80211_DEAUTH    113     /* station deauthenticate */
#define RTM_IEEE80211_AUTH      114     /* station authenticate (ap mode) */
#define RTM_IEEE80211_COUNTRY   115     /* discovered country code (sta mode) */
#define RTM_IEEE80211_RADIO     116     /* RF kill switch state change */

/*
 * Structure prepended to raw packets sent through the bpf
 * interface when set to DLT_IEEE802_11_RADIO.  This allows
 * user applications to specify pretty much everything in
 * an Atheros tx descriptor.  XXX need to generalize.
 *
 * XXX cannot be more than 14 bytes as it is copied to a sockaddr's
 * XXX sa_data area.
 */
struct ieee80211_bpf_params {
        uint8_t         ibp_vers;       /* version */
#define IEEE80211_BPF_VERSION   0
        uint8_t         ibp_len;        /* header length in bytes */
        uint8_t         ibp_flags;
#define IEEE80211_BPF_SHORTPRE  0x01    /* tx with short preamble */
#define IEEE80211_BPF_NOACK     0x02    /* tx with no ack */
#define IEEE80211_BPF_CRYPTO    0x04    /* tx with h/w encryption */
#define IEEE80211_BPF_FCS       0x10    /* frame incldues FCS */
#define IEEE80211_BPF_DATAPAD   0x20    /* frame includes data padding */
#define IEEE80211_BPF_RTS       0x40    /* tx with RTS/CTS */
#define IEEE80211_BPF_CTS       0x80    /* tx with CTS only */
        uint8_t         ibp_pri;        /* WME/WMM AC+tx antenna */
        uint8_t         ibp_try0;       /* series 1 try count */
        uint8_t         ibp_rate0;      /* series 1 IEEE tx rate */
        uint8_t         ibp_power;      /* tx power (device units) */
        uint8_t         ibp_ctsrate;    /* IEEE tx rate for CTS */
        uint8_t         ibp_try1;       /* series 2 try count */
        uint8_t         ibp_rate1;      /* series 2 IEEE tx rate */
        uint8_t         ibp_try2;       /* series 3 try count */
        uint8_t         ibp_rate2;      /* series 3 IEEE tx rate */
        uint8_t         ibp_try3;       /* series 4 try count */
        uint8_t         ibp_rate3;      /* series 4 IEEE tx rate */
};

#ifdef _KERNEL
struct ieee80211_tx_params {
        struct ieee80211_bpf_params params;
};
int     ieee80211_add_xmit_params(struct mbuf *m,
            const struct ieee80211_bpf_params *);
int     ieee80211_get_xmit_params(struct mbuf *m,
            struct ieee80211_bpf_params *);

#define IEEE80211_MAX_CHAINS            3
#define IEEE80211_MAX_EVM_PILOTS        6

#define IEEE80211_R_NF          0x0000001       /* global NF value valid */
#define IEEE80211_R_RSSI        0x0000002       /* global RSSI value valid */
#define IEEE80211_R_C_CHAIN     0x0000004       /* RX chain count valid */
#define IEEE80211_R_C_NF        0x0000008       /* per-chain NF value valid */
#define IEEE80211_R_C_RSSI      0x0000010       /* per-chain RSSI value valid */
#define IEEE80211_R_C_EVM       0x0000020       /* per-chain EVM valid */
#define IEEE80211_R_C_HT40      0x0000040       /* RX'ed packet is 40mhz, pilots 4,5 valid */
#define IEEE80211_R_FREQ        0x0000080       /* Freq value populated, MHz */
#define IEEE80211_R_IEEE        0x0000100       /* IEEE value populated */
#define IEEE80211_R_BAND        0x0000200       /* Frequency band populated */

struct ieee80211_rx_stats {
        uint32_t r_flags;               /* IEEE80211_R_* flags */
        uint8_t c_chain;                /* number of RX chains involved */
        int16_t c_nf_ctl[IEEE80211_MAX_CHAINS]; /* per-chain NF */
        int16_t c_nf_ext[IEEE80211_MAX_CHAINS]; /* per-chain NF */
        int16_t c_rssi_ctl[IEEE80211_MAX_CHAINS];       /* per-chain RSSI */
        int16_t c_rssi_ext[IEEE80211_MAX_CHAINS];       /* per-chain RSSI */
        uint8_t c_nf;                   /* global NF */
        uint8_t c_rssi;                 /* global RSSI */
        uint8_t evm[IEEE80211_MAX_CHAINS][IEEE80211_MAX_EVM_PILOTS];
                                        /* per-chain, per-pilot EVM values */
        uint16_t c_freq;
        uint8_t c_ieee;
};

struct ieee80211_rx_params {
        struct ieee80211_rx_stats params;
};
int     ieee80211_add_rx_params(struct mbuf *m,
            const struct ieee80211_rx_stats *rxs);
int     ieee80211_get_rx_params(struct mbuf *m,
            struct ieee80211_rx_stats *rxs);
#endif /* _KERNEL */

/*
 * FreeBSD overrides
 */
const char *ether_sprintf(const u_char *buf);

#define V_ifnet ifnet
#define IFF_DRV_RUNNING IFF_RUNNING
#define if_drv_flags    if_flags

typedef struct lock     ieee80211_psq_lock_t;
typedef struct lock     ieee80211_ageq_lock_t;
typedef struct lock     ieee80211_node_lock_t;
typedef struct lock     ieee80211_scan_lock_t;
typedef struct lock     ieee80211_com_lock_t;
typedef struct lock     ieee80211_tx_lock_t;
typedef struct lock     ieee80211_scan_table_lock_t;
typedef struct lock     ieee80211_scan_iter_lock_t;
typedef struct lock     acl_lock_t;
typedef struct lock     ieee80211_rte_lock_t;
typedef struct lock     ieee80211_rt_lock_t;

#define IEEE80211_LOCK_OBJ(ic)                  (&(ic)->ic_comlock)

#define IEEE80211_LOCK_INIT(ic, name)           lockinit(&(ic)->ic_comlock, name, 0, LK_CANRECURSE)
#define IEEE80211_NODE_LOCK_INIT(ic, name)      lockinit(&(nt)->nt_nodelock, name, 0, LK_CANRECURSE)
#define IEEE80211_NODE_ITERATE_LOCK_INIT(ic, name)      lockinit(&(nt)->nt_scanlock, name, 0, LK_CANRECURSE)
#define IEEE80211_SCAN_TABLE_LOCK_INIT(st, name)        lockinit(&(st)->st_lock, name, 0, LK_CANRECURSE)
#define IEEE80211_SCAN_ITER_LOCK_INIT(st, name) lockinit(&(st)->st_scanlock, name, 0, LK_CANRECURSE)
#define IEEE80211_TX_LOCK_INIT(ic, name)        lockinit(&(ic)->ic_txlock, name, 0, LK_CANRECURSE)
#define IEEE80211_AGEQ_LOCK_INIT(aq, name)      lockinit(&(aq)->aq_lock, name, 0, LK_CANRECURSE)
#define IEEE80211_PSQ_INIT(psq, name)           lockinit(&(psq)->psq_lock, name, 0, LK_CANRECURSE)
#define ACL_LOCK_INIT(as, name)         lockinit(&(as)->as_lock, name, 0, LK_CANRECURSE)
#define MESH_RT_ENTRY_LOCK_INIT(st, name)       lockinit(&(st)->rt_lock, name, 0, LK_CANRECURSE)
#define MESH_RT_LOCK_INIT(ms, name)     lockinit(&(ms)->ms_rt_lock, name, 0, LK_CANRECURSE)

#define IEEE80211_LOCK_DESTROY(ic)              lockuninit(&(ic)->ic_comlock)
#define IEEE80211_NODE_LOCK_DESTROY(nt)         lockuninit(&(nt)->nt_nodelock)
#define IEEE80211_NODE_ITERATE_LOCK_DESTROY(nt) lockuninit(&(nt)->nt_scanlock)
#define IEEE80211_SCAN_TABLE_LOCK_DESTROY(st)   lockuninit(&(st)->st_lock)
#define IEEE80211_SCAN_ITER_LOCK_DESTROY(st)    lockuninit(&(st)->st_scanlock)
#define IEEE80211_TX_LOCK_DESTROY(ic)           lockuninit(&(ic)->ic_txlock)
#define IEEE80211_AGEQ_LOCK_DESTROY(aq)         lockuninit(&(aq)->aq_lock)
#define IEEE80211_PSQ_DESTROY(psq)              lockuninit(&(psq)->psq_lock)
#define ACL_LOCK_DESTROY(as)                    lockuninit(&(as)->as_lock)
#define MESH_RT_ENTRY_LOCK_DESTROY(rt)          lockuninit(&(rt)->rt_lock)
#define MESH_RT_LOCK_DESTROY(ms)                lockuninit(&(ms)->ms_rt_lock)

#define IEEE80211_LOCK(ic)                      lockmgr(&(ic)->ic_comlock, LK_EXCLUSIVE)
#define IEEE80211_NODE_LOCK(nt)                 lockmgr(&(nt)->nt_nodelock, LK_EXCLUSIVE)
#define IEEE80211_NODE_ITERATE_LOCK(nt)         lockmgr(&(nt)->nt_scanlock, LK_EXCLUSIVE)
#define IEEE80211_SCAN_TABLE_LOCK(st)           lockmgr(&(st)->st_lock, LK_EXCLUSIVE)
#define IEEE80211_SCAN_ITER_LOCK(st)            lockmgr(&(st)->st_scanlock, LK_EXCLUSIVE)
#define IEEE80211_TX_LOCK(ic)                   lockmgr(&(ic)->ic_txlock, LK_EXCLUSIVE)
#define IEEE80211_AGEQ_LOCK(aq)                 lockmgr(&(aq)->aq_lock, LK_EXCLUSIVE)
#define IEEE80211_PSQ_LOCK(psq)                 lockmgr(&(psq)->psq_lock, LK_EXCLUSIVE)
#define ACL_LOCK(as)                            lockmgr(&(as)->as_lock, LK_EXCLUSIVE)
#define MESH_RT_ENTRY_LOCK(rt)                  lockmgr(&(rt)->rt_lock, LK_EXCLUSIVE)
#define MESH_RT_LOCK(ms)                        lockmgr(&(ms)->ms_rt_lock, LK_EXCLUSIVE)

#define IEEE80211_UNLOCK(ic)                    lockmgr(&(ic)->ic_comlock, LK_RELEASE)
#define IEEE80211_NODE_UNLOCK(nt)               lockmgr(&(nt)->nt_nodelock, LK_RELEASE)
#define IEEE80211_NODE_ITERATE_UNLOCK(nt)       lockmgr(&(nt)->nt_scanlock, LK_RELEASE)
#define IEEE80211_SCAN_TABLE_UNLOCK(nt)         lockmgr(&(st)->st_lock, LK_RELEASE)
#define IEEE80211_SCAN_ITER_UNLOCK(nt)          lockmgr(&(st)->st_scanlock, LK_RELEASE)
#define IEEE80211_TX_UNLOCK(ic)                 lockmgr(&(ic)->ic_txlock, LK_RELEASE)
#define IEEE80211_AGEQ_UNLOCK(aq)               lockmgr(&(aq)->aq_lock, LK_RELEASE)
#define IEEE80211_PSQ_UNLOCK(psq)               lockmgr(&(psq)->psq_lock, LK_RELEASE)
#define ACL_UNLOCK(as)                          lockmgr(&(as)->as_lock, LK_RELEASE)
#define MESH_RT_ENTRY_UNLOCK(rt)                lockmgr(&(rt)->rt_lock, LK_RELEASE)
#define MESH_RT_UNLOCK(ms)                      lockmgr(&(ms)->ms_rt_lock, LK_RELEASE)

#define IEEE80211_LOCK_ASSERT(ic)               \
                                KKASSERT(lockstatus(&(ic)->ic_comlock, curthread) == LK_EXCLUSIVE)
#define IEEE80211_UNLOCK_ASSERT(ic)             \
                                KKASSERT(lockstatus(&(ic)->ic_comlock, curthread) != LK_EXCLUSIVE)
#define IEEE80211_NODE_LOCK_ASSERT(nt)          \
                                KKASSERT(lockstatus(&(nt)->nt_nodelock, curthread) == LK_EXCLUSIVE)
#define IEEE80211_NODE_ITERATE_LOCK_ASSERT(nt)          \
                                KKASSERT(lockstatus(&(nt)->nt_scanlock, curthread) == LK_EXCLUSIVE)
#define IEEE80211_TX_LOCK_ASSERT(ic)            \
                                KKASSERT(lockstatus(&(ic)->ic_txlock, curthread) == LK_EXCLUSIVE)
#define IEEE80211_TX_UNLOCK_ASSERT(ic)          \
                                KKASSERT(lockstatus(&(ic)->ic_txlock, curthread) != LK_EXCLUSIVE)
#define IEEE80211_AGEQ_LOCK_ASSERT(aq)          \
                                KKASSERT(lockstatus(&(aq)->aq_lock, curthread) == LK_EXCLUSIVE)
#define ACL_LOCK_ASSERT(as)             \
                                KKASSERT(lockstatus(&(as)->as_lock, curthread) == LK_EXCLUSIVE)
#define MESH_RT_ENTRY_LOCK_ASSERT(rt)           \
                                KKASSERT(lockstatus(&(rt)->rt_lock, curthread) == LK_EXCLUSIVE)
#define MESH_RT_LOCK_ASSERT(ms)         \
                                KKASSERT(lockstatus(&(ms)->ms_rt_lock, curthread) == LK_EXCLUSIVE)

#define IEEE80211_NODE_IS_LOCKED(nt)            \
                                (lockstatus(&(nt)->nt_nodelock, curthread) == LK_EXCLUSIVE)

#define arc4random      karc4random

#define IEEE80211_AGEQ_INIT(aq, name)
#define IEEE80211_AGEQ_DESTROY(aq)
#define CURVNET_SET(x)
#define CURVNET_RESTORE()
#define ifa_free(ifa)

#define ALIGNED_POINTER(p, t)   (((uintptr_t)(p) & (sizeof(t) - 1)) == 0)

#define osdep_va_list           __va_list
#define osdep_va_start          __va_start
#define osdep_va_end            __va_end

/*
 * DragonFly names the _SAFE macros as _MUTABLE because they are generally not
 * actually safe in a MP environment, and so it is bad programming practice
 * to use them.
 */
#define TAILQ_FOREACH_SAFE      TAILQ_FOREACH_MUTABLE

#define callout_init_mtx(callo, lk, flags)              \
                                callout_init_lk(callo, lk)
#define callout_schedule_dfly(callo, timo, func, args)  \
                                callout_reset(callo, timo, func, args)

/*
 * if_inc macros
 */
#define ifd_IFCOUNTER_IERRORS   ifd_ierrors
#define ifd_IFCOUNTER_IPACKETS  ifd_ipackets
#define ifd_IFCOUNTER_IBYTES    ifd_ibytes
#define ifd_IFCOUNTER_OERRORS   ifd_oerrors
#define ifd_IFCOUNTER_OPACKETS  ifd_opackets
#define ifd_IFCOUNTER_OMCASTS   ifd_omcasts
#define ifd_IFCOUNTER_OBYTES    ifd_obytes

#define if_inc_counter          IFNET_STAT_INC

#define IEEE80211_FREE(ptr, type)       kfree((ptr), (type))

#endif /* _NET80211_IEEE80211_DRAGONFLY_H_ */