718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
189 lines
5.1 KiB
C
189 lines
5.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/module.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/sysctl.h>
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#include <sys/mbuf.h>
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#include <sys/malloc.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/proc.h>
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#include <sys/ucred.h>
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#include <sys/jail.h>
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#include <sys/sockio.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/errno.h>
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#include <sys/callout.h>
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#include <sys/endian.h>
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#include <sys/kthread.h>
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#include <sys/taskqueue.h>
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#include <sys/priv.h>
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#include <sys/sysctl.h>
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#include <machine/bus.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net/if_arp.h>
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#include <net/ethernet.h>
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#include <net/if_llc.h>
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#include <net/vnet.h>
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#include <net80211/ieee80211_var.h>
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#include <net80211/ieee80211_regdomain.h>
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#include <net/bpf.h>
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#include <sys/errno.h>
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#include <sys/conf.h> /* cdevsw struct */
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#include <sys/uio.h> /* uio struct */
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include "if_wtapvar.h"
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#include "if_wtapioctl.h"
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#include "if_medium.h"
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#include "wtap_hal/hal.h"
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/* WTAP PLUGINS */
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#include "plugins/visibility.h"
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MALLOC_DEFINE(M_WTAP, "wtap", "wtap wireless simulator");
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MALLOC_DEFINE(M_WTAP_PACKET, "wtap packet", "wtap wireless simulator packet");
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MALLOC_DEFINE(M_WTAP_RXBUF, "wtap rxbuf",
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"wtap wireless simulator receive buffer");
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MALLOC_DEFINE(M_WTAP_PLUGIN, "wtap plugin", "wtap wireless simulator plugin");
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static struct wtap_hal *hal;
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/* Function prototypes */
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static d_ioctl_t wtap_ioctl;
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static struct cdev *sdev;
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static struct cdevsw wtap_cdevsw = {
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.d_version = D_VERSION,
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.d_flags = 0,
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.d_ioctl = wtap_ioctl,
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.d_name = "wtapctl",
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};
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int
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wtap_ioctl(struct cdev *dev, u_long cmd, caddr_t data,
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int fflag, struct thread *td)
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{
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int error = 0;
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CURVNET_SET(CRED_TO_VNET(curthread->td_ucred));
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switch(cmd) {
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case WTAPIOCTLCRT:
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if(new_wtap(hal, *(int *)data))
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error = EINVAL;
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break;
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case WTAPIOCTLDEL:
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if(free_wtap(hal, *(int *)data))
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error = EINVAL;
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break;
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default:
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DWTAP_PRINTF("Unknown WTAP IOCTL\n");
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error = EINVAL;
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}
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CURVNET_RESTORE();
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return error;
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}
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/* The function called at load/unload. */
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static int
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event_handler(module_t module, int event, void *arg)
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{
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struct visibility_plugin *plugin;
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int e = 0; /* Error, 0 for normal return status */
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switch (event) {
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case MOD_LOAD:
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sdev = make_dev(&wtap_cdevsw,0,UID_ROOT,
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GID_WHEEL,0600,(const char *)"wtapctl");
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hal = (struct wtap_hal *)malloc(sizeof(struct wtap_hal),
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M_WTAP, M_NOWAIT | M_ZERO);
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bzero(hal, sizeof(struct wtap_hal));
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init_hal(hal);
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/* Setting up a simple plugin */
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plugin = (struct visibility_plugin *)malloc
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(sizeof(struct visibility_plugin), M_WTAP_PLUGIN,
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M_NOWAIT | M_ZERO);
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plugin->base.wp_hal = hal;
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plugin->base.init = visibility_init;
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plugin->base.deinit = visibility_deinit;
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plugin->base.work = visibility_work;
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register_plugin(hal, (struct wtap_plugin *)plugin);
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printf("Loaded wtap wireless simulator\n");
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break;
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case MOD_UNLOAD:
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destroy_dev(sdev);
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deregister_plugin(hal);
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deinit_hal(hal);
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free(hal, M_WTAP);
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printf("Unloading wtap wireless simulator\n");
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break;
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default:
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e = EOPNOTSUPP; /* Error, Operation Not Supported */
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break;
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}
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return(e);
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}
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/* The second argument of DECLARE_MODULE. */
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static moduledata_t wtap_conf = {
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"wtap", /* module name */
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event_handler, /* event handler */
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NULL /* extra data */
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};
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DECLARE_MODULE(wtap, wtap_conf, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
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MODULE_DEPEND(wtap, wlan, 1, 1, 1); /* 802.11 media layer */
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