1229970Sadrian/*- 2229970Sadrian * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB 3229970Sadrian * All rights reserved. 4229970Sadrian * 5229970Sadrian * Redistribution and use in source and binary forms, with or without 6229970Sadrian * modification, are permitted provided that the following conditions 7229970Sadrian * are met: 8229970Sadrian * 1. Redistributions of source code must retain the above copyright 9229970Sadrian * notice, this list of conditions and the following disclaimer, 10229970Sadrian * without modification. 11229970Sadrian * 2. Redistributions in binary form must reproduce at minimum a disclaimer 12229970Sadrian * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 13229970Sadrian * redistribution must be conditioned upon including a substantially 14229970Sadrian * similar Disclaimer requirement for further binary redistribution. 15229970Sadrian * 16229970Sadrian * NO WARRANTY 17229970Sadrian * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18229970Sadrian * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19229970Sadrian * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 20229970Sadrian * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 21229970Sadrian * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 22229970Sadrian * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23229970Sadrian * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24229970Sadrian * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 25229970Sadrian * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26229970Sadrian * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 27229970Sadrian * THE POSSIBILITY OF SUCH DAMAGES. 28229970Sadrian * 29229970Sadrian * $FreeBSD$ 30229970Sadrian */ 31229970Sadrian#include <sys/param.h> 32229970Sadrian#include <sys/module.h> 33229970Sadrian#include <sys/kernel.h> 34229970Sadrian#include <sys/systm.h> 35229970Sadrian#include <sys/sysctl.h> 36229970Sadrian#include <sys/mbuf.h> 37229970Sadrian#include <sys/malloc.h> 38229970Sadrian#include <sys/lock.h> 39229970Sadrian#include <sys/mutex.h> 40229970Sadrian#include <sys/proc.h> 41229970Sadrian#include <sys/ucred.h> 42229970Sadrian#include <sys/jail.h> 43229970Sadrian 44229970Sadrian#include <sys/types.h> 45229970Sadrian#include <sys/sockio.h> 46229970Sadrian#include <sys/socket.h> 47229970Sadrian#include <sys/socketvar.h> 48229970Sadrian#include <sys/errno.h> 49229970Sadrian#include <sys/callout.h> 50229970Sadrian#include <sys/endian.h> 51229970Sadrian#include <sys/kthread.h> 52229970Sadrian#include <sys/taskqueue.h> 53229970Sadrian#include <sys/priv.h> 54229970Sadrian#include <sys/sysctl.h> 55229970Sadrian 56229970Sadrian#include <machine/bus.h> 57229970Sadrian 58229970Sadrian#include <net/if.h> 59229970Sadrian#include <net/if_dl.h> 60229970Sadrian#include <net/if_media.h> 61229970Sadrian#include <net/if_types.h> 62229970Sadrian#include <net/if_arp.h> 63229970Sadrian#include <net/ethernet.h> 64229970Sadrian#include <net/if_llc.h> 65229970Sadrian#include <net/vnet.h> 66229970Sadrian 67229970Sadrian#include <net80211/ieee80211_var.h> 68229970Sadrian#include <net80211/ieee80211_regdomain.h> 69229970Sadrian 70229970Sadrian#include <net/bpf.h> 71229970Sadrian 72229970Sadrian 73229970Sadrian#include <sys/errno.h> 74229970Sadrian#include <sys/conf.h> /* cdevsw struct */ 75229970Sadrian#include <sys/uio.h> /* uio struct */ 76229970Sadrian 77229970Sadrian 78229970Sadrian#include <netinet/in.h> 79229970Sadrian#include <netinet/if_ether.h> 80229970Sadrian 81229970Sadrian#include "if_wtapvar.h" 82229970Sadrian#include "if_wtapioctl.h" 83229970Sadrian#include "if_medium.h" 84229970Sadrian#include "wtap_hal/hal.h" 85229970Sadrian 86229970Sadrian/* WTAP PLUGINS */ 87229970Sadrian#include "plugins/visibility.h" 88229970Sadrian 89229970SadrianMALLOC_DEFINE(M_WTAP, "wtap", "wtap wireless simulator"); 90229970SadrianMALLOC_DEFINE(M_WTAP_PACKET, "wtap packet", "wtap wireless simulator packet"); 91229970SadrianMALLOC_DEFINE(M_WTAP_RXBUF, "wtap rxbuf", 92300060Spfg "wtap wireless simulator receive buffer"); 93229970SadrianMALLOC_DEFINE(M_WTAP_PLUGIN, "wtap plugin", "wtap wireless simulator plugin"); 94229970Sadrian 95229970Sadrianstatic struct wtap_hal *hal; 96229970Sadrian 97229970Sadrian/* Function prototypes */ 98229970Sadrianstatic d_ioctl_t wtap_ioctl; 99229970Sadrian 100229970Sadrianstatic struct cdev *sdev; 101229970Sadrianstatic struct cdevsw wtap_cdevsw = { 102229970Sadrian .d_version = D_VERSION, 103229970Sadrian .d_flags = 0, 104229970Sadrian .d_ioctl = wtap_ioctl, 105229970Sadrian .d_name = "wtapctl", 106229970Sadrian}; 107229970Sadrian 108229970Sadrianint 109229970Sadrianwtap_ioctl(struct cdev *dev, u_long cmd, caddr_t data, 110229970Sadrian int fflag, struct thread *td) 111229970Sadrian{ 112229970Sadrian int error = 0; 113229970Sadrian 114229970Sadrian CURVNET_SET(CRED_TO_VNET(curthread->td_ucred)); 115229970Sadrian 116229970Sadrian switch(cmd) { 117229970Sadrian case WTAPIOCTLCRT: 118229970Sadrian if(new_wtap(hal, *(int *)data)) 119229970Sadrian error = EINVAL; 120229970Sadrian break; 121229970Sadrian case WTAPIOCTLDEL: 122229970Sadrian if(free_wtap(hal, *(int *)data)) 123229970Sadrian error = EINVAL; 124229970Sadrian break; 125229970Sadrian default: 126300060Spfg DWTAP_PRINTF("Unknown WTAP IOCTL\n"); 127229970Sadrian error = EINVAL; 128229970Sadrian } 129229970Sadrian 130229970Sadrian CURVNET_RESTORE(); 131229970Sadrian return error; 132229970Sadrian} 133229970Sadrian 134229970Sadrian 135229970Sadrian/* The function called at load/unload. */ 136229970Sadrianstatic int 137229970Sadrianevent_handler(module_t module, int event, void *arg) 138229970Sadrian{ 139229970Sadrian struct visibility_plugin *plugin; 140229970Sadrian int e = 0; /* Error, 0 for normal return status */ 141229970Sadrian 142229970Sadrian switch (event) { 143229970Sadrian case MOD_LOAD: 144229970Sadrian sdev = make_dev(&wtap_cdevsw,0,UID_ROOT, 145229970Sadrian GID_WHEEL,0600,(const char *)"wtapctl"); 146229970Sadrian hal = (struct wtap_hal *)malloc(sizeof(struct wtap_hal), 147229970Sadrian M_WTAP, M_NOWAIT | M_ZERO); 148229970Sadrian bzero(hal, sizeof(struct wtap_hal)); 149229970Sadrian 150229970Sadrian init_hal(hal); 151229970Sadrian 152229970Sadrian /* Setting up a simple plugin */ 153229970Sadrian plugin = (struct visibility_plugin *)malloc 154229970Sadrian (sizeof(struct visibility_plugin), M_WTAP_PLUGIN, 155229970Sadrian M_NOWAIT | M_ZERO); 156229970Sadrian plugin->base.wp_hal = hal; 157229970Sadrian plugin->base.init = visibility_init; 158229970Sadrian plugin->base.deinit = visibility_deinit; 159229970Sadrian plugin->base.work = visibility_work; 160229970Sadrian register_plugin(hal, (struct wtap_plugin *)plugin); 161229970Sadrian 162229970Sadrian printf("Loaded wtap wireless simulator\n"); 163229970Sadrian break; 164229970Sadrian case MOD_UNLOAD: 165229970Sadrian destroy_dev(sdev); 166229970Sadrian deregister_plugin(hal); 167229970Sadrian deinit_hal(hal); 168229970Sadrian free(hal, M_WTAP); 169229970Sadrian printf("Unloading wtap wireless simulator\n"); 170229970Sadrian break; 171229970Sadrian default: 172229970Sadrian e = EOPNOTSUPP; /* Error, Operation Not Supported */ 173229970Sadrian break; 174229970Sadrian } 175229970Sadrian 176229970Sadrian return(e); 177229970Sadrian} 178229970Sadrian 179229970Sadrian/* The second argument of DECLARE_MODULE. */ 180229970Sadrianstatic moduledata_t wtap_conf = { 181229970Sadrian "wtap", /* module name */ 182229970Sadrian event_handler, /* event handler */ 183229970Sadrian NULL /* extra data */ 184229970Sadrian}; 185229970Sadrian 186229970SadrianDECLARE_MODULE(wtap, wtap_conf, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 187231828SadrianMODULE_DEPEND(wtap, wlan, 1, 1, 1); /* 802.11 media layer */ 188