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.
218 lines
5.9 KiB
C
218 lines
5.9 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 "hal.h"
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#include "../if_medium.h"
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#include "handler.h"
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static void
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hal_tx_proc(void *arg, int npending)
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{
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struct wtap_hal *hal = (struct wtap_hal *)arg;
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struct packet *p;
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#if 0
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DWTAP_PRINTF("%s\n", __func__);
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#endif
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hal = (struct wtap_hal *)arg;
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for(;;){
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p = medium_get_next_packet(hal->hal_md);
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if(p == NULL)
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return;
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hal->plugin->work(hal->plugin, p);
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#if 0
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DWTAP_PRINTF("[%d] freeing m=%p\n", p->id, p->m);
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#endif
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m_free(p->m);
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free(p, M_WTAP_PACKET);
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}
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}
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void
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init_hal(struct wtap_hal *hal)
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{
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DWTAP_PRINTF("%s\n", __func__);
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mtx_init(&hal->hal_mtx, "wtap_hal mtx", NULL, MTX_DEF | MTX_RECURSE);
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hal->hal_md = (struct wtap_medium *)malloc(sizeof(struct wtap_medium),
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M_WTAP, M_NOWAIT | M_ZERO);
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bzero(hal->hal_md, sizeof(struct wtap_medium));
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init_medium(hal->hal_md);
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/* register event handler for packets */
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TASK_INIT(&hal->hal_md->tx_handler->proc, 0, hal_tx_proc, hal);
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}
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void
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register_plugin(struct wtap_hal *hal, struct wtap_plugin *plugin)
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{
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plugin->init(plugin);
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hal->plugin = plugin;
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}
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void
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deregister_plugin(struct wtap_hal *hal)
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{
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hal->plugin->deinit(hal->plugin);
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hal->plugin = NULL; /* catch illegal usages */
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}
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void
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deinit_hal(struct wtap_hal *hal)
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{
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DWTAP_PRINTF("%s\n", __func__);
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deinit_medium(hal->hal_md);
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free(hal->hal_md, M_WTAP);
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mtx_destroy(&hal->hal_mtx);
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}
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int32_t
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new_wtap(struct wtap_hal *hal, int32_t id)
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{
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static const uint8_t mac_pool[64][IEEE80211_ADDR_LEN] = {
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{0,152,154,152,150,151},
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{0,152,154,152,150,152},
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{0,152,154,152,150,153},
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{0,152,154,152,150,154},
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{0,152,154,152,150,155},
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{0,152,154,152,150,156},
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{0,152,154,152,150,157},
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{0,152,154,152,150,158},
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{0,152,154,152,151,151},
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{0,152,154,152,151,152},
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{0,152,154,152,151,153},
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{0,152,154,152,151,154},
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{0,152,154,152,151,155},
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{0,152,154,152,151,156},
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{0,152,154,152,151,157},
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{0,152,154,152,151,158},
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{0,152,154,152,152,151},
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{0,152,154,152,152,152},
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{0,152,154,152,152,153},
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{0,152,154,152,152,154},
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{0,152,154,152,152,155},
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{0,152,154,152,152,156},
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{0,152,154,152,152,157},
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{0,152,154,152,152,158},
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{0,152,154,152,153,151},
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{0,152,154,152,153,152},
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{0,152,154,152,153,153},
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{0,152,154,152,153,154},
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{0,152,154,152,153,155},
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{0,152,154,152,153,156},
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{0,152,154,152,153,157},
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{0,152,154,152,153,158},
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{0,152,154,152,154,151},
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{0,152,154,152,154,152},
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{0,152,154,152,154,153},
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{0,152,154,152,154,154},
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{0,152,154,152,154,155},
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{0,152,154,152,154,156},
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{0,152,154,152,154,157},
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{0,152,154,152,154,158},
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{0,152,154,152,155,151},
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{0,152,154,152,155,152},
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{0,152,154,152,155,153},
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{0,152,154,152,155,154},
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{0,152,154,152,155,155},
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{0,152,154,152,155,156},
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{0,152,154,152,155,157},
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{0,152,154,152,155,158},
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{0,152,154,152,156,151},
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{0,152,154,152,156,152},
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{0,152,154,152,156,153},
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{0,152,154,152,156,154},
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{0,152,154,152,156,155},
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{0,152,154,152,156,156},
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{0,152,154,152,156,157},
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{0,152,154,152,156,158},
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{0,152,154,152,157,151},
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{0,152,154,152,157,152},
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{0,152,154,152,157,153},
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{0,152,154,152,157,154},
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{0,152,154,152,157,155},
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{0,152,154,152,157,156},
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{0,152,154,152,157,157},
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{0,152,154,152,157,158}
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};
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DWTAP_PRINTF("%s\n", __func__);
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uint8_t const *macaddr = mac_pool[id];
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if(hal->hal_devs[id] != NULL){
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printf("error, wtap_id=%d already created\n", id);
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return -1;
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}
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hal->hal_devs[id] = (struct wtap_softc *)malloc(
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sizeof(struct wtap_softc), M_WTAP, M_NOWAIT | M_ZERO);
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bzero(hal->hal_devs[id], sizeof(struct wtap_softc));
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hal->hal_devs[id]->sc_md = hal->hal_md;
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hal->hal_devs[id]->id = id;
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snprintf(hal->hal_devs[id]->name, sizeof(hal->hal_devs[id]->name),
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"wlan%d", id);
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mtx_init(&hal->hal_devs[id]->sc_mtx, "wtap_softc mtx", NULL,
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MTX_DEF | MTX_RECURSE);
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if(wtap_attach(hal->hal_devs[id], macaddr)){
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printf("%s, cant alloc new wtap\n", __func__);
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return -1;
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}
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return 0;
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}
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int32_t
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free_wtap(struct wtap_hal *hal, int32_t id)
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{
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DWTAP_PRINTF("%s\n", __func__);
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if(hal->hal_devs[id] == NULL){
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printf("error, wtap_id=%d never created\n", id);
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return -1;
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}
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if(wtap_detach(hal->hal_devs[id]))
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printf("%s, cant alloc new wtap\n", __func__);
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mtx_destroy(&hal->hal_devs[id]->sc_mtx);
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free(hal->hal_devs[id], M_WTAP);
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hal->hal_devs[id] = NULL;
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return 0;
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}
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