1 /*- 2 * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification. 11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 12 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 13 * redistribution must be conditioned upon including a substantially 14 * similar Disclaimer requirement for further binary redistribution. 15 * 16 * NO WARRANTY 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 21 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 27 * THE POSSIBILITY OF SUCH DAMAGES. 28 * 29 * $FreeBSD$ 30 */ 31 32 #ifndef _DEV_WTAP_WTAPVAR_H 33 #define _DEV_WTAP_WTAPVAR_H 34 35 #include <sys/cdefs.h> 36 #include <sys/param.h> 37 #include <sys/conf.h> 38 #include <sys/module.h> 39 #include <sys/kernel.h> 40 #include <sys/systm.h> 41 #include <sys/sysctl.h> 42 #include <sys/mbuf.h> 43 #include <sys/malloc.h> 44 #include <sys/lock.h> 45 #include <sys/mutex.h> 46 47 #include <sys/types.h> 48 #include <sys/sockio.h> 49 #include <sys/socket.h> 50 #include <sys/socketvar.h> 51 #include <sys/errno.h> 52 #include <sys/callout.h> 53 #include <sys/endian.h> 54 #include <sys/kthread.h> 55 #include <sys/taskqueue.h> 56 #include <sys/priv.h> 57 #include <sys/sysctl.h> 58 59 #include <machine/bus.h> 60 61 #include <net/if.h> 62 #include <net/if_dl.h> 63 #include <net/if_media.h> 64 #include <net/if_types.h> 65 #include <net/if_arp.h> 66 #include <net/ethernet.h> 67 #include <net/if_llc.h> 68 69 #include <net80211/ieee80211_var.h> 70 #include <net80211/ieee80211_regdomain.h> 71 72 #include <net/bpf.h> 73 74 #include <net/vnet.h> 75 76 #include <netinet/in.h> 77 #include <netinet/if_ether.h> 78 79 #if 0 80 #define DWTAP_PRINTF(...) printf(__VA_ARGS__) 81 #else 82 #define DWTAP_PRINTF(...) 83 #endif 84 85 #include "if_wtapioctl.h" 86 87 #define MAX_NBR_WTAP (64) 88 #define BEACON_INTRERVAL (1000) 89 90 MALLOC_DECLARE(M_WTAP); 91 MALLOC_DECLARE(M_WTAP_PACKET); 92 MALLOC_DECLARE(M_WTAP_BEACON); 93 MALLOC_DECLARE(M_WTAP_RXBUF); 94 MALLOC_DECLARE(M_WTAP_PLUGIN); 95 96 /* driver-specific node state */ 97 struct wtap_node { 98 struct ieee80211_node an_node; /* base class */ 99 /* future addons */ 100 }; 101 #define WTAP_NODE(ni) ((struct ath_node *)(ni)) 102 #define WTAP_NODE_CONST(ni) ((const struct ath_node *)(ni)) 103 104 struct wtap_buf { 105 STAILQ_ENTRY(wtap_buf) bf_list; 106 struct mbuf *m; /* mbuf for buf */ 107 }; 108 typedef STAILQ_HEAD(, wtap_buf) wtap_bufhead; 109 110 #define WTAP_BUF_BUSY 0x00000002 /* (tx) desc owned by h/w */ 111 112 struct wtap_vap { 113 struct ieee80211vap av_vap; /* base class */ 114 int32_t id; /* wtap id */ 115 struct cdev *av_dev; /* userspace injecting frames */ 116 struct wtap_medium *av_md; /* back pointer */ 117 struct mbuf *beacon; /* beacon */ 118 struct ieee80211_node *bf_node; /* pointer to the node */ 119 struct ieee80211_beacon_offsets av_boff;/* dynamic update state */ 120 struct callout av_swba; /* software beacon alert */ 121 uint32_t av_bcinterval; /* beacon interval */ 122 void (*av_recv_mgmt)(struct ieee80211_node *, 123 struct mbuf *, int, int, int); 124 int (*av_newstate)(struct ieee80211vap *, 125 enum ieee80211_state, int); 126 void (*av_bmiss)(struct ieee80211vap *); 127 }; 128 #define WTAP_VAP(vap) ((struct wtap_vap *)(vap)) 129 130 struct taskqueue; 131 132 struct wtap_softc { 133 int32_t id; 134 int32_t up; 135 struct ifnet *sc_ifp; /* interface common */ 136 struct wtap_medium *sc_md; /* interface medium */ 137 struct ieee80211_node* (* sc_node_alloc) 138 (struct ieee80211vap *, const uint8_t [IEEE80211_ADDR_LEN]); 139 void (*sc_node_free)(struct ieee80211_node *); 140 int (*if_output) /* output routine (enqueue) */ 141 (struct ifnet *, struct mbuf *, struct sockaddr *, struct route *); 142 void (*if_input) (struct ifnet *, struct mbuf *);/* from h/w driver */ 143 int (*if_transmit)(struct ifnet *, struct mbuf *);/* output routine */ 144 struct mtx sc_mtx; /* master lock (recursive) */ 145 struct taskqueue *sc_tq; /* private task queue */ 146 wtap_bufhead sc_rxbuf; /* receive buffer */ 147 struct task sc_rxtask; /* rx int processing */ 148 struct wtap_tx_radiotap_header sc_tx_th; 149 int sc_tx_th_len; 150 struct wtap_rx_radiotap_header sc_rx_th; 151 int sc_rx_th_len; 152 }; 153 154 int32_t wtap_attach(struct wtap_softc *, const uint8_t *macaddr); 155 int32_t wtap_detach(struct wtap_softc *); 156 void wtap_resume(struct wtap_softc *); 157 void wtap_suspend(struct wtap_softc *); 158 void wtap_shutdown(struct wtap_softc *); 159 void wtap_intr(struct wtap_softc *); 160 void wtap_inject(struct wtap_softc *, struct mbuf *); 161 void wtap_rx_deliver(struct wtap_softc *, struct mbuf *); 162 163 #endif 164