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/param.h> 36 #include <sys/conf.h> 37 #include <sys/module.h> 38 #include <sys/kernel.h> 39 #include <sys/systm.h> 40 #include <sys/sysctl.h> 41 #include <sys/mbuf.h> 42 #include <sys/malloc.h> 43 #include <sys/lock.h> 44 #include <sys/mutex.h> 45 46 #include <sys/sockio.h> 47 #include <sys/socket.h> 48 #include <sys/socketvar.h> 49 #include <sys/errno.h> 50 #include <sys/callout.h> 51 #include <sys/endian.h> 52 #include <sys/kthread.h> 53 #include <sys/taskqueue.h> 54 #include <sys/priv.h> 55 #include <sys/sysctl.h> 56 57 #include <machine/bus.h> 58 59 #include <net/if.h> 60 #include <net/if_dl.h> 61 #include <net/if_media.h> 62 #include <net/if_types.h> 63 #include <net/if_arp.h> 64 #include <net/ethernet.h> 65 #include <net/if_llc.h> 66 67 #include <net80211/ieee80211_var.h> 68 #include <net80211/ieee80211_regdomain.h> 69 70 #include <net/bpf.h> 71 72 #include <net/vnet.h> 73 74 #include <netinet/in.h> 75 #include <netinet/if_ether.h> 76 77 #if 0 78 #define DWTAP_PRINTF(...) printf(__VA_ARGS__) 79 #else 80 #define DWTAP_PRINTF(...) 81 #endif 82 83 #include "if_wtapioctl.h" 84 85 #define MAX_NBR_WTAP (64) 86 #define BEACON_INTRERVAL (1000) 87 88 MALLOC_DECLARE(M_WTAP); 89 MALLOC_DECLARE(M_WTAP_PACKET); 90 MALLOC_DECLARE(M_WTAP_BEACON); 91 MALLOC_DECLARE(M_WTAP_RXBUF); 92 MALLOC_DECLARE(M_WTAP_PLUGIN); 93 94 /* driver-specific node state */ 95 struct wtap_node { 96 struct ieee80211_node an_node; /* base class */ 97 /* future addons */ 98 }; 99 #define WTAP_NODE(ni) ((struct ath_node *)(ni)) 100 #define WTAP_NODE_CONST(ni) ((const struct ath_node *)(ni)) 101 102 struct wtap_buf { 103 STAILQ_ENTRY(wtap_buf) bf_list; 104 struct mbuf *m; /* mbuf for buf */ 105 }; 106 typedef STAILQ_HEAD(, wtap_buf) wtap_bufhead; 107 108 #define WTAP_BUF_BUSY 0x00000002 /* (tx) desc owned by h/w */ 109 110 struct wtap_vap { 111 struct ieee80211vap av_vap; /* base class */ 112 int32_t id; /* wtap id */ 113 struct cdev *av_dev; /* userspace injecting frames */ 114 struct wtap_medium *av_md; /* back pointer */ 115 struct mbuf *beacon; /* beacon */ 116 struct ieee80211_node *bf_node; /* pointer to the node */ 117 struct callout av_swba; /* software beacon alert */ 118 uint32_t av_bcinterval; /* beacon interval */ 119 void (*av_recv_mgmt)(struct ieee80211_node *, 120 struct mbuf *, int, const struct ieee80211_rx_stats *, int, int); 121 int (*av_newstate)(struct ieee80211vap *, 122 enum ieee80211_state, int); 123 void (*av_bmiss)(struct ieee80211vap *); 124 }; 125 #define WTAP_VAP(vap) ((struct wtap_vap *)(vap)) 126 127 struct taskqueue; 128 129 struct wtap_softc { 130 struct ieee80211com sc_ic; 131 char name[7]; /* wtapXX\0 */ 132 int32_t id; 133 int32_t up; 134 struct wtap_medium *sc_md; /* interface medium */ 135 struct ieee80211_node* (* sc_node_alloc) 136 (struct ieee80211vap *, const uint8_t [IEEE80211_ADDR_LEN]); 137 void (*sc_node_free)(struct ieee80211_node *); 138 struct mtx sc_mtx; /* master lock (recursive) */ 139 struct taskqueue *sc_tq; /* private task queue */ 140 wtap_bufhead sc_rxbuf; /* receive buffer */ 141 struct task sc_rxtask; /* rx int processing */ 142 struct wtap_tx_radiotap_header sc_tx_th; 143 int sc_tx_th_len; 144 struct wtap_rx_radiotap_header sc_rx_th; 145 int sc_rx_th_len; 146 }; 147 148 int32_t wtap_attach(struct wtap_softc *, const uint8_t *macaddr); 149 int32_t wtap_detach(struct wtap_softc *); 150 void wtap_resume(struct wtap_softc *); 151 void wtap_suspend(struct wtap_softc *); 152 void wtap_shutdown(struct wtap_softc *); 153 void wtap_intr(struct wtap_softc *); 154 void wtap_inject(struct wtap_softc *, struct mbuf *); 155 void wtap_rx_deliver(struct wtap_softc *, struct mbuf *); 156 157 #endif 158