freebsd-dev/sys/dev/wtap/if_wtapvar.h
2015-12-13 20:53:51 +00:00

158 lines
4.8 KiB
C

/*-
* 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 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 *);
void wtap_rx_deliver(struct wtap_softc *, struct mbuf *);
#endif