| Current Path : /usr/src/contrib/wpa/src/ap/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/contrib/wpa/src/ap/hostapd.c |
/*
* hostapd / Initialization and configuration
* Copyright (c) 2002-2009, 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 "utils/eloop.h"
#include "common/ieee802_11_defs.h"
#include "radius/radius_client.h"
#include "drivers/driver.h"
#include "hostapd.h"
#include "authsrv.h"
#include "sta_info.h"
#include "accounting.h"
#include "ap_list.h"
#include "beacon.h"
#include "iapp.h"
#include "ieee802_1x.h"
#include "ieee802_11_auth.h"
#include "vlan_init.h"
#include "wpa_auth.h"
#include "wps_hostapd.h"
#include "hw_features.h"
#include "wpa_auth_glue.h"
#include "ap_drv_ops.h"
#include "ap_config.h"
static int hostapd_flush_old_stations(struct hostapd_data *hapd);
static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd);
extern int wpa_debug_level;
int hostapd_reload_config(struct hostapd_iface *iface)
{
struct hostapd_data *hapd = iface->bss[0];
struct hostapd_config *newconf, *oldconf;
size_t j;
if (iface->config_read_cb == NULL)
return -1;
newconf = iface->config_read_cb(iface->config_fname);
if (newconf == NULL)
return -1;
/*
* Deauthenticate all stations since the new configuration may not
* allow them to use the BSS anymore.
*/
for (j = 0; j < iface->num_bss; j++)
hostapd_flush_old_stations(iface->bss[j]);
#ifndef CONFIG_NO_RADIUS
/* TODO: update dynamic data based on changed configuration
* items (e.g., open/close sockets, etc.) */
radius_client_flush(hapd->radius, 0);
#endif /* CONFIG_NO_RADIUS */
oldconf = hapd->iconf;
hapd->iconf = newconf;
hapd->conf = &newconf->bss[0];
iface->conf = newconf;
if (hostapd_setup_wpa_psk(hapd->conf)) {
wpa_printf(MSG_ERROR, "Failed to re-configure WPA PSK "
"after reloading configuration");
}
if (hapd->conf->ieee802_1x || hapd->conf->wpa)
hapd->drv.set_drv_ieee8021x(hapd, hapd->conf->iface, 1);
else
hapd->drv.set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
if (hapd->conf->wpa && hapd->wpa_auth == NULL)
hostapd_setup_wpa(hapd);
else if (hapd->conf->wpa) {
const u8 *wpa_ie;
size_t wpa_ie_len;
hostapd_reconfig_wpa(hapd);
wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len))
wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
"the kernel driver.");
} else if (hapd->wpa_auth) {
wpa_deinit(hapd->wpa_auth);
hapd->wpa_auth = NULL;
hostapd_set_privacy(hapd, 0);
hostapd_setup_encryption(hapd->conf->iface, hapd);
hostapd_set_generic_elem(hapd, (u8 *) "", 0);
}
ieee802_11_set_beacon(hapd);
hostapd_update_wps(hapd);
if (hapd->conf->ssid.ssid_set &&
hostapd_set_ssid(hapd, (u8 *) hapd->conf->ssid.ssid,
hapd->conf->ssid.ssid_len)) {
wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
/* try to continue */
}
hostapd_config_free(oldconf);
wpa_printf(MSG_DEBUG, "Reconfigured interface %s", hapd->conf->iface);
return 0;
}
static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
char *ifname)
{
int i;
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (hapd->drv.set_key(ifname, hapd, WPA_ALG_NONE, NULL, i,
i == 0 ? 1 : 0, NULL, 0, NULL, 0)) {
wpa_printf(MSG_DEBUG, "Failed to clear default "
"encryption keys (ifname=%s keyidx=%d)",
ifname, i);
}
}
#ifdef CONFIG_IEEE80211W
if (hapd->conf->ieee80211w) {
for (i = NUM_WEP_KEYS; i < NUM_WEP_KEYS + 2; i++) {
if (hapd->drv.set_key(ifname, hapd, WPA_ALG_NONE, NULL,
i, i == 0 ? 1 : 0, NULL, 0,
NULL, 0)) {
wpa_printf(MSG_DEBUG, "Failed to clear "
"default mgmt encryption keys "
"(ifname=%s keyidx=%d)", ifname, i);
}
}
}
#endif /* CONFIG_IEEE80211W */
}
static int hostapd_broadcast_wep_clear(struct hostapd_data *hapd)
{
hostapd_broadcast_key_clear_iface(hapd, hapd->conf->iface);
return 0;
}
static int hostapd_broadcast_wep_set(struct hostapd_data *hapd)
{
int errors = 0, idx;
struct hostapd_ssid *ssid = &hapd->conf->ssid;
idx = ssid->wep.idx;
if (ssid->wep.default_len &&
hapd->drv.set_key(hapd->conf->iface,
hapd, WPA_ALG_WEP, NULL, idx,
idx == ssid->wep.idx,
NULL, 0, ssid->wep.key[idx],
ssid->wep.len[idx])) {
wpa_printf(MSG_WARNING, "Could not set WEP encryption.");
errors++;
}
if (ssid->dyn_vlan_keys) {
size_t i;
for (i = 0; i <= ssid->max_dyn_vlan_keys; i++) {
const char *ifname;
struct hostapd_wep_keys *key = ssid->dyn_vlan_keys[i];
if (key == NULL)
continue;
ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan,
i);
if (ifname == NULL)
continue;
idx = key->idx;
if (hapd->drv.set_key(ifname, hapd, WPA_ALG_WEP, NULL,
idx, idx == key->idx, NULL, 0,
key->key[idx], key->len[idx])) {
wpa_printf(MSG_WARNING, "Could not set "
"dynamic VLAN WEP encryption.");
errors++;
}
}
}
return errors;
}
/**
* hostapd_cleanup - Per-BSS cleanup (deinitialization)
* @hapd: Pointer to BSS data
*
* This function is used to free all per-BSS data structures and resources.
* This gets called in a loop for each BSS between calls to
* hostapd_cleanup_iface_pre() and hostapd_cleanup_iface() when an interface
* is deinitialized. Most of the modules that are initialized in
* hostapd_setup_bss() are deinitialized here.
*/
static void hostapd_cleanup(struct hostapd_data *hapd)
{
if (hapd->iface->ctrl_iface_deinit)
hapd->iface->ctrl_iface_deinit(hapd);
iapp_deinit(hapd->iapp);
hapd->iapp = NULL;
accounting_deinit(hapd);
hostapd_deinit_wpa(hapd);
vlan_deinit(hapd);
hostapd_acl_deinit(hapd);
#ifndef CONFIG_NO_RADIUS
radius_client_deinit(hapd->radius);
hapd->radius = NULL;
#endif /* CONFIG_NO_RADIUS */
hostapd_deinit_wps(hapd);
authsrv_deinit(hapd);
if (hapd->interface_added &&
hostapd_if_remove(hapd, WPA_IF_AP_BSS, hapd->conf->iface)) {
wpa_printf(MSG_WARNING, "Failed to remove BSS interface %s",
hapd->conf->iface);
}
os_free(hapd->probereq_cb);
hapd->probereq_cb = NULL;
}
/**
* hostapd_cleanup_iface_pre - Preliminary per-interface cleanup
* @iface: Pointer to interface data
*
* This function is called before per-BSS data structures are deinitialized
* with hostapd_cleanup().
*/
static void hostapd_cleanup_iface_pre(struct hostapd_iface *iface)
{
}
/**
* hostapd_cleanup_iface - Complete per-interface cleanup
* @iface: Pointer to interface data
*
* This function is called after per-BSS data structures are deinitialized
* with hostapd_cleanup().
*/
static void hostapd_cleanup_iface(struct hostapd_iface *iface)
{
hostapd_free_hw_features(iface->hw_features, iface->num_hw_features);
iface->hw_features = NULL;
os_free(iface->current_rates);
iface->current_rates = NULL;
ap_list_deinit(iface);
hostapd_config_free(iface->conf);
iface->conf = NULL;
os_free(iface->config_fname);
os_free(iface->bss);
os_free(iface);
}
static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd)
{
int i;
hostapd_broadcast_wep_set(hapd);
if (hapd->conf->ssid.wep.default_len) {
hostapd_set_privacy(hapd, 1);
return 0;
}
for (i = 0; i < 4; i++) {
if (hapd->conf->ssid.wep.key[i] &&
hapd->drv.set_key(iface, hapd, WPA_ALG_WEP, NULL, i,
i == hapd->conf->ssid.wep.idx, NULL, 0,
hapd->conf->ssid.wep.key[i],
hapd->conf->ssid.wep.len[i])) {
wpa_printf(MSG_WARNING, "Could not set WEP "
"encryption.");
return -1;
}
if (hapd->conf->ssid.wep.key[i] &&
i == hapd->conf->ssid.wep.idx)
hostapd_set_privacy(hapd, 1);
}
return 0;
}
static int hostapd_flush_old_stations(struct hostapd_data *hapd)
{
int ret = 0;
if (hostapd_drv_none(hapd) || hapd->drv_priv == NULL)
return 0;
wpa_printf(MSG_DEBUG, "Flushing old station entries");
if (hostapd_flush(hapd)) {
wpa_printf(MSG_WARNING, "Could not connect to kernel driver.");
ret = -1;
}
wpa_printf(MSG_DEBUG, "Deauthenticate all stations");
/* New Prism2.5/3 STA firmware versions seem to have issues with this
* broadcast deauth frame. This gets the firmware in odd state where
* nothing works correctly, so let's skip sending this for the hostap
* driver. */
if (hapd->driver && os_strcmp(hapd->driver->name, "hostap") != 0) {
u8 addr[ETH_ALEN];
os_memset(addr, 0xff, ETH_ALEN);
hapd->drv.sta_deauth(hapd, addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
}
return ret;
}
/**
* hostapd_validate_bssid_configuration - Validate BSSID configuration
* @iface: Pointer to interface data
* Returns: 0 on success, -1 on failure
*
* This function is used to validate that the configured BSSIDs are valid.
*/
static int hostapd_validate_bssid_configuration(struct hostapd_iface *iface)
{
u8 mask[ETH_ALEN] = { 0 };
struct hostapd_data *hapd = iface->bss[0];
unsigned int i = iface->conf->num_bss, bits = 0, j;
int res;
int auto_addr = 0;
if (hostapd_drv_none(hapd))
return 0;
/* Generate BSSID mask that is large enough to cover the BSSIDs. */
/* Determine the bits necessary to cover the number of BSSIDs. */
for (i--; i; i >>= 1)
bits++;
/* Determine the bits necessary to any configured BSSIDs,
if they are higher than the number of BSSIDs. */
for (j = 0; j < iface->conf->num_bss; j++) {
if (hostapd_mac_comp_empty(iface->conf->bss[j].bssid) == 0) {
if (j)
auto_addr++;
continue;
}
for (i = 0; i < ETH_ALEN; i++) {
mask[i] |=
iface->conf->bss[j].bssid[i] ^
hapd->own_addr[i];
}
}
if (!auto_addr)
goto skip_mask_ext;
for (i = 0; i < ETH_ALEN && mask[i] == 0; i++)
;
j = 0;
if (i < ETH_ALEN) {
j = (5 - i) * 8;
while (mask[i] != 0) {
mask[i] >>= 1;
j++;
}
}
if (bits < j)
bits = j;
if (bits > 40) {
wpa_printf(MSG_ERROR, "Too many bits in the BSSID mask (%u)",
bits);
return -1;
}
os_memset(mask, 0xff, ETH_ALEN);
j = bits / 8;
for (i = 5; i > 5 - j; i--)
mask[i] = 0;
j = bits % 8;
while (j--)
mask[i] <<= 1;
skip_mask_ext:
wpa_printf(MSG_DEBUG, "BSS count %lu, BSSID mask " MACSTR " (%d bits)",
(unsigned long) iface->conf->num_bss, MAC2STR(mask), bits);
res = hostapd_valid_bss_mask(hapd, hapd->own_addr, mask);
if (res == 0)
return 0;
if (res < 0) {
wpa_printf(MSG_ERROR, "Driver did not accept BSSID mask "
MACSTR " for start address " MACSTR ".",
MAC2STR(mask), MAC2STR(hapd->own_addr));
return -1;
}
if (!auto_addr)
return 0;
for (i = 0; i < ETH_ALEN; i++) {
if ((hapd->own_addr[i] & mask[i]) != hapd->own_addr[i]) {
wpa_printf(MSG_ERROR, "Invalid BSSID mask " MACSTR
" for start address " MACSTR ".",
MAC2STR(mask), MAC2STR(hapd->own_addr));
wpa_printf(MSG_ERROR, "Start address must be the "
"first address in the block (i.e., addr "
"AND mask == addr).");
return -1;
}
}
return 0;
}
static int mac_in_conf(struct hostapd_config *conf, const void *a)
{
size_t i;
for (i = 0; i < conf->num_bss; i++) {
if (hostapd_mac_comp(conf->bss[i].bssid, a) == 0) {
return 1;
}
}
return 0;
}
/**
* hostapd_setup_bss - Per-BSS setup (initialization)
* @hapd: Pointer to BSS data
* @first: Whether this BSS is the first BSS of an interface
*
* This function is used to initialize all per-BSS data structures and
* resources. This gets called in a loop for each BSS when an interface is
* initialized. Most of the modules that are initialized here will be
* deinitialized in hostapd_cleanup().
*/
static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
{
struct hostapd_bss_config *conf = hapd->conf;
u8 ssid[HOSTAPD_MAX_SSID_LEN + 1];
int ssid_len, set_ssid;
char force_ifname[IFNAMSIZ];
u8 if_addr[ETH_ALEN];
if (!first) {
if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0) {
/* Allocate the next available BSSID. */
do {
inc_byte_array(hapd->own_addr, ETH_ALEN);
} while (mac_in_conf(hapd->iconf, hapd->own_addr));
} else {
/* Allocate the configured BSSID. */
os_memcpy(hapd->own_addr, hapd->conf->bssid, ETH_ALEN);
if (hostapd_mac_comp(hapd->own_addr,
hapd->iface->bss[0]->own_addr) ==
0) {
wpa_printf(MSG_ERROR, "BSS '%s' may not have "
"BSSID set to the MAC address of "
"the radio", hapd->conf->iface);
return -1;
}
}
hapd->interface_added = 1;
if (hostapd_if_add(hapd->iface->bss[0], WPA_IF_AP_BSS,
hapd->conf->iface, hapd->own_addr, hapd,
&hapd->drv_priv, force_ifname, if_addr)) {
wpa_printf(MSG_ERROR, "Failed to add BSS (BSSID="
MACSTR ")", MAC2STR(hapd->own_addr));
return -1;
}
}
hostapd_flush_old_stations(hapd);
hostapd_set_privacy(hapd, 0);
hostapd_broadcast_wep_clear(hapd);
if (hostapd_setup_encryption(hapd->conf->iface, hapd))
return -1;
/*
* Fetch the SSID from the system and use it or,
* if one was specified in the config file, verify they
* match.
*/
ssid_len = hostapd_get_ssid(hapd, ssid, sizeof(ssid));
if (ssid_len < 0) {
wpa_printf(MSG_ERROR, "Could not read SSID from system");
return -1;
}
if (conf->ssid.ssid_set) {
/*
* If SSID is specified in the config file and it differs
* from what is being used then force installation of the
* new SSID.
*/
set_ssid = (conf->ssid.ssid_len != (size_t) ssid_len ||
os_memcmp(conf->ssid.ssid, ssid, ssid_len) != 0);
} else {
/*
* No SSID in the config file; just use the one we got
* from the system.
*/
set_ssid = 0;
conf->ssid.ssid_len = ssid_len;
os_memcpy(conf->ssid.ssid, ssid, conf->ssid.ssid_len);
conf->ssid.ssid[conf->ssid.ssid_len] = '\0';
}
if (!hostapd_drv_none(hapd)) {
wpa_printf(MSG_ERROR, "Using interface %s with hwaddr " MACSTR
" and ssid '%s'",
hapd->conf->iface, MAC2STR(hapd->own_addr),
hapd->conf->ssid.ssid);
}
if (hostapd_setup_wpa_psk(conf)) {
wpa_printf(MSG_ERROR, "WPA-PSK setup failed.");
return -1;
}
/* Set SSID for the kernel driver (to be used in beacon and probe
* response frames) */
if (set_ssid && hostapd_set_ssid(hapd, (u8 *) conf->ssid.ssid,
conf->ssid.ssid_len)) {
wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
return -1;
}
if (wpa_debug_level == MSG_MSGDUMP)
conf->radius->msg_dumps = 1;
#ifndef CONFIG_NO_RADIUS
hapd->radius = radius_client_init(hapd, conf->radius);
if (hapd->radius == NULL) {
wpa_printf(MSG_ERROR, "RADIUS client initialization failed.");
return -1;
}
#endif /* CONFIG_NO_RADIUS */
if (hostapd_acl_init(hapd)) {
wpa_printf(MSG_ERROR, "ACL initialization failed.");
return -1;
}
if (hostapd_init_wps(hapd, conf))
return -1;
if (authsrv_init(hapd) < 0)
return -1;
if (ieee802_1x_init(hapd)) {
wpa_printf(MSG_ERROR, "IEEE 802.1X initialization failed.");
return -1;
}
if (hapd->conf->wpa && hostapd_setup_wpa(hapd))
return -1;
if (accounting_init(hapd)) {
wpa_printf(MSG_ERROR, "Accounting initialization failed.");
return -1;
}
if (hapd->conf->ieee802_11f &&
(hapd->iapp = iapp_init(hapd, hapd->conf->iapp_iface)) == NULL) {
wpa_printf(MSG_ERROR, "IEEE 802.11F (IAPP) initialization "
"failed.");
return -1;
}
if (hapd->iface->ctrl_iface_init &&
hapd->iface->ctrl_iface_init(hapd)) {
wpa_printf(MSG_ERROR, "Failed to setup control interface");
return -1;
}
if (!hostapd_drv_none(hapd) && vlan_init(hapd)) {
wpa_printf(MSG_ERROR, "VLAN initialization failed.");
return -1;
}
ieee802_11_set_beacon(hapd);
return 0;
}
static void hostapd_tx_queue_params(struct hostapd_iface *iface)
{
struct hostapd_data *hapd = iface->bss[0];
int i;
struct hostapd_tx_queue_params *p;
for (i = 0; i < NUM_TX_QUEUES; i++) {
p = &iface->conf->tx_queue[i];
if (!p->configured)
continue;
if (hostapd_set_tx_queue_params(hapd, i, p->aifs, p->cwmin,
p->cwmax, p->burst)) {
wpa_printf(MSG_DEBUG, "Failed to set TX queue "
"parameters for queue %d.", i);
/* Continue anyway */
}
}
}
static int setup_interface(struct hostapd_iface *iface)
{
struct hostapd_data *hapd = iface->bss[0];
size_t i;
char country[4];
/*
* Make sure that all BSSes get configured with a pointer to the same
* driver interface.
*/
for (i = 1; i < iface->num_bss; i++) {
iface->bss[i]->driver = hapd->driver;
iface->bss[i]->drv_priv = hapd->drv_priv;
}
if (hostapd_validate_bssid_configuration(iface))
return -1;
if (hapd->iconf->country[0] && hapd->iconf->country[1]) {
os_memcpy(country, hapd->iconf->country, 3);
country[3] = '\0';
if (hostapd_set_country(hapd, country) < 0) {
wpa_printf(MSG_ERROR, "Failed to set country code");
return -1;
}
}
if (hostapd_get_hw_features(iface)) {
/* Not all drivers support this yet, so continue without hw
* feature data. */
} else {
int ret = hostapd_select_hw_mode(iface);
if (ret < 0) {
wpa_printf(MSG_ERROR, "Could not select hw_mode and "
"channel. (%d)", ret);
return -1;
}
ret = hostapd_check_ht_capab(iface);
if (ret < 0)
return -1;
if (ret == 1) {
wpa_printf(MSG_DEBUG, "Interface initialization will "
"be completed in a callback");
return 0;
}
}
return hostapd_setup_interface_complete(iface, 0);
}
int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err)
{
struct hostapd_data *hapd = iface->bss[0];
size_t j;
u8 *prev_addr;
if (err) {
wpa_printf(MSG_ERROR, "Interface initialization failed");
eloop_terminate();
return -1;
}
wpa_printf(MSG_DEBUG, "Completing interface initialization");
if (hapd->iconf->channel) {
iface->freq = hostapd_hw_get_freq(hapd, hapd->iconf->channel);
wpa_printf(MSG_DEBUG, "Mode: %s Channel: %d "
"Frequency: %d MHz",
hostapd_hw_mode_txt(hapd->iconf->hw_mode),
hapd->iconf->channel, iface->freq);
if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, iface->freq,
hapd->iconf->channel,
hapd->iconf->ieee80211n,
hapd->iconf->secondary_channel)) {
wpa_printf(MSG_ERROR, "Could not set channel for "
"kernel driver");
return -1;
}
}
if (hapd->iconf->rts_threshold > -1 &&
hostapd_set_rts(hapd, hapd->iconf->rts_threshold)) {
wpa_printf(MSG_ERROR, "Could not set RTS threshold for "
"kernel driver");
return -1;
}
if (hapd->iconf->fragm_threshold > -1 &&
hostapd_set_frag(hapd, hapd->iconf->fragm_threshold)) {
wpa_printf(MSG_ERROR, "Could not set fragmentation threshold "
"for kernel driver");
return -1;
}
prev_addr = hapd->own_addr;
for (j = 0; j < iface->num_bss; j++) {
hapd = iface->bss[j];
if (j)
os_memcpy(hapd->own_addr, prev_addr, ETH_ALEN);
if (hostapd_setup_bss(hapd, j == 0))
return -1;
if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0)
prev_addr = hapd->own_addr;
}
hostapd_tx_queue_params(iface);
ap_list_init(iface);
if (hostapd_driver_commit(hapd) < 0) {
wpa_printf(MSG_ERROR, "%s: Failed to commit driver "
"configuration", __func__);
return -1;
}
wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
iface->bss[0]->conf->iface);
return 0;
}
/**
* hostapd_setup_interface - Setup of an interface
* @iface: Pointer to interface data.
* Returns: 0 on success, -1 on failure
*
* Initializes the driver interface, validates the configuration,
* and sets driver parameters based on the configuration.
* Flushes old stations, sets the channel, encryption,
* beacons, and WDS links based on the configuration.
*/
int hostapd_setup_interface(struct hostapd_iface *iface)
{
int ret;
ret = setup_interface(iface);
if (ret) {
wpa_printf(MSG_ERROR, "%s: Unable to setup interface.",
iface->bss[0]->conf->iface);
return -1;
}
return 0;
}
/**
* hostapd_alloc_bss_data - Allocate and initialize per-BSS data
* @hapd_iface: Pointer to interface data
* @conf: Pointer to per-interface configuration
* @bss: Pointer to per-BSS configuration for this BSS
* Returns: Pointer to allocated BSS data
*
* This function is used to allocate per-BSS data structure. This data will be
* freed after hostapd_cleanup() is called for it during interface
* deinitialization.
*/
struct hostapd_data *
hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
struct hostapd_config *conf,
struct hostapd_bss_config *bss)
{
struct hostapd_data *hapd;
hapd = os_zalloc(sizeof(*hapd));
if (hapd == NULL)
return NULL;
hostapd_set_driver_ops(&hapd->drv);
hapd->new_assoc_sta_cb = hostapd_new_assoc_sta;
hapd->iconf = conf;
hapd->conf = bss;
hapd->iface = hapd_iface;
hapd->driver = hapd->iconf->driver;
return hapd;
}
void hostapd_interface_deinit(struct hostapd_iface *iface)
{
size_t j;
if (iface == NULL)
return;
hostapd_cleanup_iface_pre(iface);
for (j = 0; j < iface->num_bss; j++) {
struct hostapd_data *hapd = iface->bss[j];
hostapd_free_stas(hapd);
hostapd_flush_old_stations(hapd);
hostapd_cleanup(hapd);
}
}
void hostapd_interface_free(struct hostapd_iface *iface)
{
size_t j;
for (j = 0; j < iface->num_bss; j++)
os_free(iface->bss[j]);
hostapd_cleanup_iface(iface);
}
/**
* hostapd_new_assoc_sta - Notify that a new station associated with the AP
* @hapd: Pointer to BSS data
* @sta: Pointer to the associated STA data
* @reassoc: 1 to indicate this was a re-association; 0 = first association
*
* This function will be called whenever a station associates with the AP. It
* can be called from ieee802_11.c for drivers that export MLME to hostapd and
* from drv_callbacks.c based on driver events for drivers that take care of
* management frames (IEEE 802.11 authentication and association) internally.
*/
void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
int reassoc)
{
if (hapd->tkip_countermeasures) {
hapd->drv.sta_deauth(hapd, sta->addr,
WLAN_REASON_MICHAEL_MIC_FAILURE);
return;
}
hostapd_prune_associations(hapd, sta->addr);
/* IEEE 802.11F (IAPP) */
if (hapd->conf->ieee802_11f)
iapp_new_station(hapd->iapp, sta);
/* Start accounting here, if IEEE 802.1X and WPA are not used.
* IEEE 802.1X/WPA code will start accounting after the station has
* been authorized. */
if (!hapd->conf->ieee802_1x && !hapd->conf->wpa)
accounting_sta_start(hapd, sta);
/* Start IEEE 802.1X authentication process for new stations */
ieee802_1x_new_station(hapd, sta);
if (reassoc) {
if (sta->auth_alg != WLAN_AUTH_FT &&
!(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)))
wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH);
} else
wpa_auth_sta_associated(hapd->wpa_auth, sta->wpa_sm);
}