/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES.
*
* $FreeBSD$
*/
#include "hal.h"
#include "../if_medium.h"
#include "handler.h"
static void
hal_tx_proc(void *arg, int npending)
{
struct wtap_hal *hal = (struct wtap_hal *)arg;
struct packet *p;
#if 0
DWTAP_PRINTF("%s\n", __func__);
#endif
hal = (struct wtap_hal *)arg;
for(;;){
p = medium_get_next_packet(hal->hal_md);
if(p == NULL)
return;
hal->plugin->work(hal->plugin, p);
#if 0
DWTAP_PRINTF("[%d] freeing m=%p\n", p->id, p->m);
#endif
m_free(p->m);
free(p, M_WTAP_PACKET);
}
}
void
init_hal(struct wtap_hal *hal)
{
DWTAP_PRINTF("%s\n", __func__);
mtx_init(&hal->hal_mtx, "wtap_hal mtx", NULL, MTX_DEF | MTX_RECURSE);
hal->hal_md = (struct wtap_medium *)malloc(sizeof(struct wtap_medium),
M_WTAP, M_NOWAIT | M_ZERO);
bzero(hal->hal_md, sizeof(struct wtap_medium));
init_medium(hal->hal_md);
/* register event handler for packets */
TASK_INIT(&hal->hal_md->tx_handler->proc, 0, hal_tx_proc, hal);
}
void
register_plugin(struct wtap_hal *hal, struct wtap_plugin *plugin)
{
plugin->init(plugin);
hal->plugin = plugin;
}
void
deregister_plugin(struct wtap_hal *hal)
{
hal->plugin->deinit(hal->plugin);
hal->plugin = NULL; /* catch illegal usages */
}
void
deinit_hal(struct wtap_hal *hal)
{
DWTAP_PRINTF("%s\n", __func__);
deinit_medium(hal->hal_md);
free(hal->hal_md, M_WTAP);
mtx_destroy(&hal->hal_mtx);
}
int32_t
new_wtap(struct wtap_hal *hal, int32_t id)
{
static const uint8_t mac_pool[64][IEEE80211_ADDR_LEN] = {
{0,152,154,152,150,151},
{0,152,154,152,150,152},
{0,152,154,152,150,153},
{0,152,154,152,150,154},
{0,152,154,152,150,155},
{0,152,154,152,150,156},
{0,152,154,152,150,157},
{0,152,154,152,150,158},
{0,152,154,152,151,151},
{0,152,154,152,151,152},
{0,152,154,152,151,153},
{0,152,154,152,151,154},
{0,152,154,152,151,155},
{0,152,154,152,151,156},
{0,152,154,152,151,157},
{0,152,154,152,151,158},
{0,152,154,152,152,151},
{0,152,154,152,152,152},
{0,152,154,152,152,153},
{0,152,154,152,152,154},
{0,152,154,152,152,155},
{0,152,154,152,152,156},
{0,152,154,152,152,157},
{0,152,154,152,152,158},
{0,152,154,152,153,151},
{0,152,154,152,153,152},
{0,152,154,152,153,153},
{0,152,154,152,153,154},
{0,152,154,152,153,155},
{0,152,154,152,153,156},
{0,152,154,152,153,157},
{0,152,154,152,153,158},
{0,152,154,152,154,151},
{0,152,154,152,154,152},
{0,152,154,152,154,153},
{0,152,154,152,154,154},
{0,152,154,152,154,155},
{0,152,154,152,154,156},
{0,152,154,152,154,157},
{0,152,154,152,154,158},
{0,152,154,152,155,151},
{0,152,154,152,155,152},
{0,152,154,152,155,153},
{0,152,154,152,155,154},
{0,152,154,152,155,155},
{0,152,154,152,155,156},
{0,152,154,152,155,157},
{0,152,154,152,155,158},
{0,152,154,152,156,151},
{0,152,154,152,156,152},
{0,152,154,152,156,153},
{0,152,154,152,156,154},
{0,152,154,152,156,155},
{0,152,154,152,156,156},
{0,152,154,152,156,157},
{0,152,154,152,156,158},
{0,152,154,152,157,151},
{0,152,154,152,157,152},
{0,152,154,152,157,153},
{0,152,154,152,157,154},
{0,152,154,152,157,155},
{0,152,154,152,157,156},
{0,152,154,152,157,157},
{0,152,154,152,157,158}
};
DWTAP_PRINTF("%s\n", __func__);
uint8_t const *macaddr = mac_pool[id];
if(hal->hal_devs[id] != NULL){
printf("error, wtap_id=%d already created\n", id);
return -1;
}
hal->hal_devs[id] = (struct wtap_softc *)malloc(
sizeof(struct wtap_softc), M_WTAP, M_NOWAIT | M_ZERO);
bzero(hal->hal_devs[id], sizeof(struct wtap_softc));
hal->hal_devs[id]->sc_md = hal->hal_md;
hal->hal_devs[id]->id = id;
snprintf(hal->hal_devs[id]->name, sizeof(hal->hal_devs[id]->name),
"wlan%d", id);
mtx_init(&hal->hal_devs[id]->sc_mtx, "wtap_softc mtx", NULL,
MTX_DEF | MTX_RECURSE);
if(wtap_attach(hal->hal_devs[id], macaddr)){
printf("%s, cant alloc new wtap\n", __func__);
return -1;
}
return 0;
}
int32_t
free_wtap(struct wtap_hal *hal, int32_t id)
{
DWTAP_PRINTF("%s\n", __func__);
if(hal->hal_devs[id] == NULL){
printf("error, wtap_id=%d never created\n", id);
return -1;
}
if(wtap_detach(hal->hal_devs[id]))
printf("%s, cant alloc new wtap\n", __func__);
mtx_destroy(&hal->hal_devs[id]->sc_mtx);
free(hal->hal_devs[id], M_WTAP);
hal->hal_devs[id] = NULL;
return 0;
}
