1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer, 12 * without modification. 13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 15 * redistribution must be conditioned upon including a substantially 16 * similar Disclaimer requirement for further binary redistribution. 17 * 18 * NO WARRANTY 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 23 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 27 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 29 * THE POSSIBILITY OF SUCH DAMAGES. 30 * 31 * $FreeBSD$ 32 */ 33 34 #ifndef _DEV_WTAP_WTAPVAR_H 35 #define _DEV_WTAP_WTAPVAR_H 36 37 #include <sys/param.h> 38 #include <sys/conf.h> 39 #include <sys/module.h> 40 #include <sys/kernel.h> 41 #include <sys/systm.h> 42 #include <sys/sysctl.h> 43 #include <sys/mbuf.h> 44 #include <sys/malloc.h> 45 #include <sys/lock.h> 46 #include <sys/mutex.h> 47 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 callout av_swba; /* software beacon alert */ 120 uint32_t av_bcinterval; /* beacon interval */ 121 void (*av_recv_mgmt)(struct ieee80211_node *, 122 struct mbuf *, int, const struct ieee80211_rx_stats *, int, int); 123 int (*av_newstate)(struct ieee80211vap *, 124 enum ieee80211_state, int); 125 void (*av_bmiss)(struct ieee80211vap *); 126 }; 127 #define WTAP_VAP(vap) ((struct wtap_vap *)(vap)) 128 129 struct taskqueue; 130 131 struct wtap_softc { 132 struct ieee80211com sc_ic; 133 char name[7]; /* wtapXX\0 */ 134 int32_t id; 135 int32_t up; 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 struct mtx sc_mtx; /* master lock (recursive) */ 141 struct taskqueue *sc_tq; /* private task queue */ 142 wtap_bufhead sc_rxbuf; /* receive buffer */ 143 struct task sc_rxtask; /* rx int processing */ 144 struct wtap_tx_radiotap_header sc_tx_th; 145 int sc_tx_th_len; 146 struct wtap_rx_radiotap_header sc_rx_th; 147 int sc_rx_th_len; 148 }; 149 150 int32_t wtap_attach(struct wtap_softc *, const uint8_t *macaddr); 151 int32_t wtap_detach(struct wtap_softc *); 152 void wtap_resume(struct wtap_softc *); 153 void wtap_suspend(struct wtap_softc *); 154 void wtap_shutdown(struct wtap_softc *); 155 void wtap_intr(struct wtap_softc *); 156 void wtap_inject(struct wtap_softc *, struct mbuf *); 157 158 #endif 159