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Current Path: /usr/src/contrib/wpa/src/ap

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📄 accounting.c(14.53 KB)
📄 accounting.h(1.12 KB)
📄 acs.c(29.71 KB)
📄 acs.h(764 B)
📄 airtime_policy.c(6.82 KB)
📄 airtime_policy.h(1.27 KB)
📄 ap_config.c(33.39 KB)
📄 ap_config.h(26.53 KB)
📄 ap_drv_ops.c(25.84 KB)
📄 ap_drv_ops.h(13.38 KB)
📄 ap_list.c(6.82 KB)
📄 ap_list.h(1.5 KB)
📄 ap_mlme.c(5.64 KB)
📄 ap_mlme.h(1007 B)
📄 authsrv.c(8.72 KB)
📄 authsrv.h(352 B)
📄 beacon.c(40.32 KB)
📄 beacon.h(1.25 KB)
📄 bss_load.c(2.4 KB)
📄 bss_load.h(376 B)
📄 ctrl_iface_ap.c(24.3 KB)
📄 ctrl_iface_ap.h(1.61 KB)
📄 dfs.c(29.35 KB)
📄 dfs.h(1.22 KB)
📄 dhcp_snoop.c(3.36 KB)
📄 dhcp_snoop.h(590 B)
📄 dpp_hostapd.c(48.28 KB)
📄 dpp_hostapd.h(1.74 KB)
📄 drv_callbacks.c(51.68 KB)
📄 eap_user_db.c(7.92 KB)
📄 eth_p_oui.c(4.44 KB)
📄 eth_p_oui.h(958 B)
📄 fils_hlp.c(16.82 KB)
📄 fils_hlp.h(547 B)
📄 gas_query_ap.c(19.53 KB)
📄 gas_query_ap.h(1.24 KB)
📄 gas_serv.c(50.48 KB)
📄 gas_serv.h(3.38 KB)
📄 hostapd.c(89.58 KB)
📄 hostapd.h(17.99 KB)
📄 hs20.c(6.27 KB)
📄 hs20.h(843 B)
📄 hw_features.c(24.77 KB)
📄 hw_features.h(1.93 KB)
📄 iapp.c(14.59 KB)
📄 iapp.h(833 B)
📄 ieee802_11.c(148.71 KB)
📄 ieee802_11.h(7.97 KB)
📄 ieee802_11_auth.c(18.3 KB)
📄 ieee802_11_auth.h(1.04 KB)
📄 ieee802_11_he.c(8.77 KB)
📄 ieee802_11_ht.c(16.22 KB)
📄 ieee802_11_shared.c(23.95 KB)
📄 ieee802_11_vht.c(13.4 KB)
📄 ieee802_1x.c(83.16 KB)
📄 ieee802_1x.h(2.84 KB)
📄 mbo_ap.c(5.22 KB)
📄 mbo_ap.h(1.16 KB)
📄 ndisc_snoop.c(4.3 KB)
📄 ndisc_snoop.h(838 B)
📄 neighbor_db.c(6.49 KB)
📄 neighbor_db.h(940 B)
📄 p2p_hostapd.c(2.57 KB)
📄 p2p_hostapd.h(888 B)
📄 pmksa_cache_auth.c(18.79 KB)
📄 pmksa_cache_auth.h(2.69 KB)
📄 preauth_auth.c(6.47 KB)
📄 preauth_auth.h(1.26 KB)
📄 rrm.c(17.27 KB)
📄 rrm.h(1.21 KB)
📄 sta_info.c(41.42 KB)
📄 sta_info.h(11.63 KB)
📄 taxonomy.c(7.45 KB)
📄 taxonomy.h(766 B)
📄 tkip_countermeasures.c(2.95 KB)
📄 tkip_countermeasures.h(451 B)
📄 utils.c(2.29 KB)
📄 vlan.c(756 B)
📄 vlan.h(727 B)
📄 vlan_full.c(18.35 KB)
📄 vlan_ifconfig.c(1.47 KB)
📄 vlan_init.c(5.88 KB)
📄 vlan_init.h(1.09 KB)
📄 vlan_ioctl.c(3.75 KB)
📄 vlan_util.c(3.9 KB)
📄 vlan_util.h(980 B)
📄 wmm.c(11.47 KB)
📄 wmm.h(653 B)
📄 wnm_ap.c(23.69 KB)
📄 wnm_ap.h(1.08 KB)
📄 wpa_auth.c(140.03 KB)
📄 wpa_auth.h(17.89 KB)
📄 wpa_auth_ft.c(120.89 KB)
📄 wpa_auth_glue.c(35.42 KB)
📄 wpa_auth_glue.h(443 B)
📄 wpa_auth_i.h(8.47 KB)
📄 wpa_auth_ie.c(32.38 KB)
📄 wpa_auth_ie.h(1.14 KB)
📄 wpa_auth_kay.c(12.26 KB)
📄 wpa_auth_kay.h(1.15 KB)
📄 wps_hostapd.c(54.66 KB)
📄 wps_hostapd.h(2.79 KB)
📄 x_snoop.c(3.21 KB)
📄 x_snoop.h(1.29 KB)

Editing: ap_list.c

/*
 * hostapd / AP table
 * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
 * Copyright (c) 2003-2004, Instant802 Networks, Inc.
 * Copyright (c) 2006, Devicescape Software, Inc.
 *
 * This software may be distributed under the terms of the BSD license.
 * See README for more details.
 */

#include "utils/includes.h"

#include "utils/common.h"
#include "utils/eloop.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#include "hostapd.h"
#include "ap_config.h"
#include "ieee802_11.h"
#include "sta_info.h"
#include "beacon.h"
#include "ap_list.h"

/* AP list is a double linked list with head->prev pointing to the end of the
 * list and tail->next = NULL. Entries are moved to the head of the list
 * whenever a beacon has been received from the AP in question. The tail entry
 * in this link will thus be the least recently used entry. */

static int ap_list_beacon_olbc(struct hostapd_iface *iface, struct ap_info *ap)
{
	int i;

if (iface->current_mode == NULL ||
	    iface->current_mode->mode != HOSTAPD_MODE_IEEE80211G ||
	    iface->conf->channel != ap->channel)
		return 0;

if (ap->erp != -1 && (ap->erp & ERP_INFO_NON_ERP_PRESENT))
		return 1;

for (i = 0; i < WLAN_SUPP_RATES_MAX; i++) {
		int rate = (ap->supported_rates[i] & 0x7f) * 5;
		if (rate == 60 || rate == 90 || rate > 110)
			return 0;
	}

return 1;
}

static struct ap_info * ap_get_ap(struct hostapd_iface *iface, const u8 *ap)
{
	struct ap_info *s;

s = iface->ap_hash[STA_HASH(ap)];
	while (s != NULL && os_memcmp(s->addr, ap, ETH_ALEN) != 0)
		s = s->hnext;
	return s;
}

static void ap_ap_list_add(struct hostapd_iface *iface, struct ap_info *ap)
{
	if (iface->ap_list) {
		ap->prev = iface->ap_list->prev;
		iface->ap_list->prev = ap;
	} else
		ap->prev = ap;
	ap->next = iface->ap_list;
	iface->ap_list = ap;
}

static void ap_ap_list_del(struct hostapd_iface *iface, struct ap_info *ap)
{
	if (iface->ap_list == ap)
		iface->ap_list = ap->next;
	else
		ap->prev->next = ap->next;

if (ap->next)
		ap->next->prev = ap->prev;
	else if (iface->ap_list)
		iface->ap_list->prev = ap->prev;
}

static void ap_ap_hash_add(struct hostapd_iface *iface, struct ap_info *ap)
{
	ap->hnext = iface->ap_hash[STA_HASH(ap->addr)];
	iface->ap_hash[STA_HASH(ap->addr)] = ap;
}

static void ap_ap_hash_del(struct hostapd_iface *iface, struct ap_info *ap)
{
	struct ap_info *s;

s = iface->ap_hash[STA_HASH(ap->addr)];
	if (s == NULL) return;
	if (os_memcmp(s->addr, ap->addr, ETH_ALEN) == 0) {
		iface->ap_hash[STA_HASH(ap->addr)] = s->hnext;
		return;
	}

while (s->hnext != NULL &&
	       os_memcmp(s->hnext->addr, ap->addr, ETH_ALEN) != 0)
		s = s->hnext;
	if (s->hnext != NULL)
		s->hnext = s->hnext->hnext;
	else
		wpa_printf(MSG_INFO, "AP: could not remove AP " MACSTR
			   " from hash table",  MAC2STR(ap->addr));
}

static void ap_free_ap(struct hostapd_iface *iface, struct ap_info *ap)
{
	ap_ap_hash_del(iface, ap);
	ap_ap_list_del(iface, ap);

iface->num_ap--;
	os_free(ap);
}

static void hostapd_free_aps(struct hostapd_iface *iface)
{
	struct ap_info *ap, *prev;

ap = iface->ap_list;

while (ap) {
		prev = ap;
		ap = ap->next;
		ap_free_ap(iface, prev);
	}

iface->ap_list = NULL;
}

static struct ap_info * ap_ap_add(struct hostapd_iface *iface, const u8 *addr)
{
	struct ap_info *ap;

ap = os_zalloc(sizeof(struct ap_info));
	if (ap == NULL)
		return NULL;

/* initialize AP info data */
	os_memcpy(ap->addr, addr, ETH_ALEN);
	ap_ap_list_add(iface, ap);
	iface->num_ap++;
	ap_ap_hash_add(iface, ap);

if (iface->num_ap > iface->conf->ap_table_max_size && ap != ap->prev) {
		wpa_printf(MSG_DEBUG, "Removing the least recently used AP "
			   MACSTR " from AP table", MAC2STR(ap->prev->addr));
		ap_free_ap(iface, ap->prev);
	}

return ap;
}

void ap_list_process_beacon(struct hostapd_iface *iface,
			    const struct ieee80211_mgmt *mgmt,
			    struct ieee802_11_elems *elems,
			    struct hostapd_frame_info *fi)
{
	struct ap_info *ap;
	int new_ap = 0;
	int set_beacon = 0;

if (iface->conf->ap_table_max_size < 1)
		return;

ap = ap_get_ap(iface, mgmt->bssid);
	if (!ap) {
		ap = ap_ap_add(iface, mgmt->bssid);
		if (!ap) {
			wpa_printf(MSG_INFO,
				   "Failed to allocate AP information entry");
			return;
		}
		new_ap = 1;
	}

merge_byte_arrays(ap->supported_rates, WLAN_SUPP_RATES_MAX,
			  elems->supp_rates, elems->supp_rates_len,
			  elems->ext_supp_rates, elems->ext_supp_rates_len);

if (elems->erp_info)
		ap->erp = elems->erp_info[0];
	else
		ap->erp = -1;

if (elems->ds_params)
		ap->channel = elems->ds_params[0];
	else if (elems->ht_operation)
		ap->channel = elems->ht_operation[0];
	else if (fi)
		ap->channel = fi->channel;

if (elems->ht_capabilities)
		ap->ht_support = 1;
	else
		ap->ht_support = 0;

os_get_reltime(&ap->last_beacon);

if (!new_ap && ap != iface->ap_list) {
		/* move AP entry into the beginning of the list so that the
		 * oldest entry is always in the end of the list */
		ap_ap_list_del(iface, ap);
		ap_ap_list_add(iface, ap);
	}

if (!iface->olbc &&
	    ap_list_beacon_olbc(iface, ap)) {
		iface->olbc = 1;
		wpa_printf(MSG_DEBUG, "OLBC AP detected: " MACSTR
			   " (channel %d) - enable protection",
			   MAC2STR(ap->addr), ap->channel);
		set_beacon++;
	}

#ifdef CONFIG_IEEE80211N
	if (!iface->olbc_ht && !ap->ht_support &&
	    (ap->channel == 0 ||
	     ap->channel == iface->conf->channel ||
	     ap->channel == iface->conf->channel +
	     iface->conf->secondary_channel * 4)) {
		iface->olbc_ht = 1;
		hostapd_ht_operation_update(iface);
		wpa_printf(MSG_DEBUG, "OLBC HT AP detected: " MACSTR
			   " (channel %d) - enable protection",
			   MAC2STR(ap->addr), ap->channel);
		set_beacon++;
	}
#endif /* CONFIG_IEEE80211N */

if (set_beacon)
		ieee802_11_update_beacons(iface);
}

void ap_list_timer(struct hostapd_iface *iface)
{
	struct os_reltime now;
	struct ap_info *ap;
	int set_beacon = 0;

if (!iface->ap_list)
		return;

os_get_reltime(&now);

while (iface->ap_list) {
		ap = iface->ap_list->prev;
		if (!os_reltime_expired(&now, &ap->last_beacon,
					iface->conf->ap_table_expiration_time))
			break;

ap_free_ap(iface, ap);
	}

if (iface->olbc || iface->olbc_ht) {
		int olbc = 0;
		int olbc_ht = 0;

ap = iface->ap_list;
		while (ap && (olbc == 0 || olbc_ht == 0)) {
			if (ap_list_beacon_olbc(iface, ap))
				olbc = 1;
			if (!ap->ht_support)
				olbc_ht = 1;
			ap = ap->next;
		}
		if (!olbc && iface->olbc) {
			wpa_printf(MSG_DEBUG, "OLBC not detected anymore");
			iface->olbc = 0;
			set_beacon++;
		}
#ifdef CONFIG_IEEE80211N
		if (!olbc_ht && iface->olbc_ht) {
			wpa_printf(MSG_DEBUG, "OLBC HT not detected anymore");
			iface->olbc_ht = 0;
			hostapd_ht_operation_update(iface);
			set_beacon++;
		}
#endif /* CONFIG_IEEE80211N */
	}

if (set_beacon)
		ieee802_11_update_beacons(iface);
}

int ap_list_init(struct hostapd_iface *iface)
{
	return 0;
}

void ap_list_deinit(struct hostapd_iface *iface)
{
	hostapd_free_aps(iface);
}

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Editing: ap_list.c

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