FreeBSD/Linux Kernel Cross Reference
sys/dev/wtap/if_wtapvar.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB
      * 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.
     *
     * $FreeBSD$
     */
    
    #ifndef _DEV_WTAP_WTAPVAR_H
    #define _DEV_WTAP_WTAPVAR_H
    
    #include <sys/param.h>
    #include <sys/conf.h>
    #include <sys/module.h>
    #include <sys/kernel.h>
    #include <sys/systm.h>
    #include <sys/sysctl.h>
    #include <sys/mbuf.h>
    #include <sys/malloc.h>
    #include <sys/lock.h>
    #include <sys/mutex.h>
    
    #include <sys/sockio.h>
    #include <sys/socket.h>
    #include <sys/socketvar.h>
    #include <sys/errno.h>
    #include <sys/callout.h>
    #include <sys/endian.h>
    #include <sys/kthread.h>
    #include <sys/taskqueue.h>
    #include <sys/priv.h>
    #include <sys/sysctl.h>
    
    #include <machine/bus.h>
    
    #include <net/if.h>
    #include <net/if_dl.h>
    #include <net/if_media.h>
    #include <net/if_types.h>
    #include <net/if_arp.h>
    #include <net/ethernet.h>
    #include <net/if_llc.h>
    
    #include <net80211/ieee80211_var.h>
    #include <net80211/ieee80211_regdomain.h>
    
    #include <net/bpf.h>
    
    #include <net/vnet.h>
    
    #include <netinet/in.h>
    #include <netinet/if_ether.h>
    
    #if 0
    #define DWTAP_PRINTF(...) printf(__VA_ARGS__)
    #else
    #define DWTAP_PRINTF(...)
    #endif
    
    #include "if_wtapioctl.h"
    
    #define MAX_NBR_WTAP (64)
    #define BEACON_INTRERVAL (1000)
    
    MALLOC_DECLARE(M_WTAP);
    MALLOC_DECLARE(M_WTAP_PACKET);
    MALLOC_DECLARE(M_WTAP_BEACON);
    MALLOC_DECLARE(M_WTAP_RXBUF);
    MALLOC_DECLARE(M_WTAP_PLUGIN);
    
    /* driver-specific node state */
    struct wtap_node {
            struct ieee80211_node an_node;  /* base class */
            /* future addons */
   };
   #define WTAP_NODE(ni)   ((struct ath_node *)(ni))
   #define WTAP_NODE_CONST(ni)     ((const struct ath_node *)(ni))
   
   struct wtap_buf {
           STAILQ_ENTRY(wtap_buf)  bf_list;
           struct mbuf             *m;     /* mbuf for buf */
   };
   typedef STAILQ_HEAD(, wtap_buf) wtap_bufhead;
   
   #define WTAP_BUF_BUSY 0x00000002        /* (tx) desc owned by h/w */
   
   struct wtap_vap {
           struct ieee80211vap av_vap;             /* base class */
           int32_t                 id;             /* wtap id */
           struct cdev             *av_dev;        /* userspace injecting frames */
           struct wtap_medium      *av_md;         /* back pointer */
           struct mbuf *beacon;                    /* beacon */
           struct ieee80211_node   *bf_node;       /* pointer to the node */
           struct callout          av_swba;        /* software beacon alert */
           uint32_t                av_bcinterval;  /* beacon interval */
           void (*av_recv_mgmt)(struct ieee80211_node *,
               struct mbuf *, int, const struct ieee80211_rx_stats *, int, int);
           int (*av_newstate)(struct ieee80211vap *,
               enum ieee80211_state, int);
           void (*av_bmiss)(struct ieee80211vap *);
   };
   #define WTAP_VAP(vap)   ((struct wtap_vap *)(vap))
   
   struct taskqueue;
   
   struct wtap_softc {
           struct ieee80211com     sc_ic;
           char                    name[7];        /* wtapXX\0 */
           int32_t                 id;
           int32_t                 up;
           struct wtap_medium      *sc_md;         /* interface medium */
           struct wtap_hal         *hal;
           struct ieee80211_node*  (* sc_node_alloc)
               (struct ieee80211vap *, const uint8_t [IEEE80211_ADDR_LEN]);
           void (*sc_node_free)(struct ieee80211_node *);
           struct mtx              sc_mtx;         /* master lock (recursive) */
           struct taskqueue        *sc_tq;         /* private task queue */
           wtap_bufhead            sc_rxbuf;       /* receive buffer */
           struct task             sc_rxtask;      /* rx int processing */
           struct wtap_tx_radiotap_header sc_tx_th;
           int                     sc_tx_th_len;
           struct wtap_rx_radiotap_header sc_rx_th;
           int                     sc_rx_th_len;
   };
   
   int32_t wtap_attach(struct wtap_softc *, const uint8_t *macaddr);
   int32_t wtap_detach(struct wtap_softc *);
   void    wtap_resume(struct wtap_softc *);
   void    wtap_suspend(struct wtap_softc *);
   void    wtap_shutdown(struct wtap_softc *);
   void    wtap_intr(struct wtap_softc *);
   void    wtap_inject(struct wtap_softc *, struct mbuf *);
   
   #endif

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