hostap/wlantest/bss.c
Jouni Malinen d84d389351 wlantest: Maintain table of BSS information
Whenever a Beacon or Probe Response frame is observed, add or update
a BSS entry to maintain current information about the active BSSes.
2010-11-07 23:29:00 +02:00

49 lines
1.1 KiB
C

/*
* BSS list
* Copyright (c) 2010, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#include "utils/includes.h"
#include "utils/common.h"
#include "wlantest.h"
struct wlantest_bss * bss_get(struct wlantest *wt, const u8 *bssid)
{
struct wlantest_bss *bss;
if (bssid[0] & 0x01)
return NULL; /* Skip group addressed frames */
dl_list_for_each(bss, &wt->bss, struct wlantest_bss, list) {
if (os_memcmp(bss->bssid, bssid, ETH_ALEN) == 0)
return bss;
}
bss = os_zalloc(sizeof(*bss));
if (bss == NULL)
return NULL;
os_memcpy(bss->bssid, bssid, ETH_ALEN);
dl_list_add(&wt->bss, &bss->list);
wpa_printf(MSG_DEBUG, "Discovered new BSS - " MACSTR,
MAC2STR(bss->bssid));
return bss;
}
void bss_deinit(struct wlantest_bss *bss)
{
dl_list_del(&bss->list);
os_free(bss);
}