hostap/hostapd/hostapd.c

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/*
* hostapd / Initialization and configuration
2009-01-06 19:11:15 +01:00
* 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 "includes.h"
#include "eloop.h"
#include "hostapd.h"
#include "ieee802_1x.h"
#include "beacon.h"
#include "hw_features.h"
#include "accounting.h"
#include "eapol_sm.h"
#include "iapp.h"
#include "common/ieee802_11_defs.h"
#include "ieee802_11_auth.h"
#include "sta_flags.h"
#include "sta_info.h"
#include "ap_list.h"
#include "driver_i.h"
#include "radius/radius_client.h"
#include "radius/radius_server.h"
#include "wpa.h"
#include "preauth.h"
#include "vlan_init.h"
#include "ctrl_iface.h"
#include "tls.h"
#include "eap_server/eap_sim_db.h"
#include "eap_server/eap.h"
#include "eap_server/tncs.h"
#include "l2_packet/l2_packet.h"
#include "wps_hostapd.h"
#include "tkip_countermeasures.h"
static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
size_t identity_len, int phase2,
struct eap_user *user);
static int hostapd_flush_old_stations(struct hostapd_data *hapd);
static int hostapd_setup_wpa(struct hostapd_data *hapd);
static int hostapd_setup_encryption(char *iface, struct hostapd_data *hapd);
extern int wpa_debug_level;
#ifdef EAP_SERVER
static int hostapd_sim_db_cb_sta(struct hostapd_data *hapd,
struct sta_info *sta, void *ctx)
{
if (eapol_auth_eap_pending_cb(sta->eapol_sm, ctx) == 0)
return 1;
return 0;
}
static void hostapd_sim_db_cb(void *ctx, void *session_ctx)
{
struct hostapd_data *hapd = ctx;
if (ap_for_each_sta(hapd, hostapd_sim_db_cb_sta, session_ctx) == 0)
radius_server_eap_pending_cb(hapd->radius_srv, session_ctx);
}
#endif /* EAP_SERVER */
static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
struct wpa_auth_config *wconf)
{
wconf->wpa = conf->wpa;
wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
wconf->wpa_pairwise = conf->wpa_pairwise;
wconf->wpa_group = conf->wpa_group;
wconf->wpa_group_rekey = conf->wpa_group_rekey;
wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
wconf->rsn_pairwise = conf->rsn_pairwise;
wconf->rsn_preauth = conf->rsn_preauth;
wconf->eapol_version = conf->eapol_version;
wconf->peerkey = conf->peerkey;
wconf->wmm_enabled = conf->wmm_enabled;
wconf->okc = conf->okc;
#ifdef CONFIG_IEEE80211W
wconf->ieee80211w = conf->ieee80211w;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211R
wconf->ssid_len = conf->ssid.ssid_len;
if (wconf->ssid_len > SSID_LEN)
wconf->ssid_len = SSID_LEN;
os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
os_memcpy(wconf->mobility_domain, conf->mobility_domain,
MOBILITY_DOMAIN_ID_LEN);
if (conf->nas_identifier &&
os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
wconf->r0_key_holder_len);
}
os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
wconf->r0_key_lifetime = conf->r0_key_lifetime;
wconf->reassociation_deadline = conf->reassociation_deadline;
wconf->r0kh_list = conf->r0kh_list;
wconf->r1kh_list = conf->r1kh_list;
wconf->pmk_r1_push = conf->pmk_r1_push;
#endif /* CONFIG_IEEE80211R */
}
int hostapd_reload_config(struct hostapd_iface *iface)
{
struct hostapd_data *hapd = iface->bss[0];
struct hostapd_config *newconf, *oldconf;
struct wpa_auth_config wpa_auth_conf;
size_t j;
newconf = hostapd_config_read(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]);
/* TODO: update dynamic data based on changed configuration
* items (e.g., open/close sockets, etc.) */
radius_client_flush(hapd->radius, 0);
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->wpa && hapd->wpa_auth == NULL)
hostapd_setup_wpa(hapd);
else if (hapd->conf->wpa) {
hostapd_wpa_auth_conf(&newconf->bss[0], &wpa_auth_conf);
wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
} 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);
}
ieee802_11_set_beacon(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 */
}
if (hapd->conf->ieee802_1x || hapd->conf->wpa)
hostapd_set_ieee8021x(hapd->conf->iface, hapd, 1);
hostapd_config_free(oldconf);
wpa_printf(MSG_DEBUG, "Reconfigured interface %s", hapd->conf->iface);
return 0;
}
int handle_reload_iface(struct hostapd_iface *iface, void *ctx)
{
if (hostapd_reload_config(iface) < 0) {
wpa_printf(MSG_WARNING, "Failed to read new configuration "
"file - continuing with old.");
}
return 0;
}
#ifdef HOSTAPD_DUMP_STATE
/**
* hostapd_dump_state - SIGUSR1 handler to dump hostapd state to a text file
*/
static void hostapd_dump_state(struct hostapd_data *hapd)
{
FILE *f;
time_t now;
struct sta_info *sta;
int i;
char *buf;
if (!hapd->conf->dump_log_name) {
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wpa_printf(MSG_DEBUG, "Dump file not defined - ignoring dump "
"request");
return;
}
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wpa_printf(MSG_DEBUG, "Dumping hostapd state to '%s'",
hapd->conf->dump_log_name);
f = fopen(hapd->conf->dump_log_name, "w");
if (f == NULL) {
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wpa_printf(MSG_WARNING, "Could not open dump file '%s' for "
"writing.", hapd->conf->dump_log_name);
return;
}
time(&now);
fprintf(f, "hostapd state dump - %s", ctime(&now));
fprintf(f, "num_sta=%d num_sta_non_erp=%d "
"num_sta_no_short_slot_time=%d\n"
"num_sta_no_short_preamble=%d\n",
hapd->num_sta, hapd->iface->num_sta_non_erp,
hapd->iface->num_sta_no_short_slot_time,
hapd->iface->num_sta_no_short_preamble);
for (sta = hapd->sta_list; sta != NULL; sta = sta->next) {
fprintf(f, "\nSTA=" MACSTR "\n", MAC2STR(sta->addr));
fprintf(f,
" AID=%d flags=0x%x %s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
" capability=0x%x listen_interval=%d\n",
sta->aid,
sta->flags,
(sta->flags & WLAN_STA_AUTH ? "[AUTH]" : ""),
(sta->flags & WLAN_STA_ASSOC ? "[ASSOC]" : ""),
(sta->flags & WLAN_STA_PS ? "[PS]" : ""),
(sta->flags & WLAN_STA_TIM ? "[TIM]" : ""),
(sta->flags & WLAN_STA_PERM ? "[PERM]" : ""),
(sta->flags & WLAN_STA_AUTHORIZED ? "[AUTHORIZED]" :
""),
(sta->flags & WLAN_STA_PENDING_POLL ? "[PENDING_POLL" :
""),
(sta->flags & WLAN_STA_SHORT_PREAMBLE ?
"[SHORT_PREAMBLE]" : ""),
(sta->flags & WLAN_STA_PREAUTH ? "[PREAUTH]" : ""),
(sta->flags & WLAN_STA_WMM ? "[WMM]" : ""),
(sta->flags & WLAN_STA_MFP ? "[MFP]" : ""),
(sta->flags & WLAN_STA_WPS ? "[WPS]" : ""),
(sta->flags & WLAN_STA_MAYBE_WPS ? "[MAYBE_WPS]" : ""),
(sta->flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
sta->capability,
sta->listen_interval);
fprintf(f, " supported_rates=");
for (i = 0; i < sta->supported_rates_len; i++)
fprintf(f, "%02x ", sta->supported_rates[i]);
fprintf(f, "\n");
fprintf(f,
" timeout_next=%s\n",
(sta->timeout_next == STA_NULLFUNC ? "NULLFUNC POLL" :
(sta->timeout_next == STA_DISASSOC ? "DISASSOC" :
"DEAUTH")));
ieee802_1x_dump_state(f, " ", sta);
}
buf = os_malloc(4096);
if (buf) {
int count = radius_client_get_mib(hapd->radius, buf, 4096);
if (count < 0)
count = 0;
else if (count > 4095)
count = 4095;
buf[count] = '\0';
fprintf(f, "%s", buf);
count = radius_server_get_mib(hapd->radius_srv, buf, 4096);
if (count < 0)
count = 0;
else if (count > 4095)
count = 4095;
buf[count] = '\0';
fprintf(f, "%s", buf);
os_free(buf);
}
fclose(f);
}
int handle_dump_state_iface(struct hostapd_iface *iface, void *ctx)
{
size_t i;
for (i = 0; i < iface->num_bss; i++)
hostapd_dump_state(iface->bss[i]);
return 0;
}
#endif /* HOSTAPD_DUMP_STATE */
static void hostapd_broadcast_key_clear_iface(struct hostapd_data *hapd,
char *ifname)
{
int i;
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (hostapd_set_key(ifname, hapd, WPA_ALG_NONE, NULL, i,
i == 0 ? 1 : 0, NULL, 0, NULL, 0)) {
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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 (hostapd_set_key(ifname, hapd, WPA_ALG_NONE, NULL,
i, i == 0 ? 1 : 0, NULL, 0,
NULL, 0)) {
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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 &&
hostapd_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])) {
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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 (hostapd_set_key(ifname, hapd, WPA_ALG_WEP, NULL,
idx, idx == key->idx, NULL, 0,
key->key[idx], key->len[idx])) {
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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)
{
hostapd_ctrl_iface_deinit(hapd);
iapp_deinit(hapd->iapp);
hapd->iapp = NULL;
accounting_deinit(hapd);
rsn_preauth_iface_deinit(hapd);
if (hapd->wpa_auth) {
wpa_deinit(hapd->wpa_auth);
hapd->wpa_auth = NULL;
if (hostapd_set_privacy(hapd, 0)) {
wpa_printf(MSG_DEBUG, "Could not disable "
"PrivacyInvoked for interface %s",
hapd->conf->iface);
}
if (hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
wpa_printf(MSG_DEBUG, "Could not remove generic "
"information element from interface %s",
hapd->conf->iface);
}
}
ieee802_1x_deinit(hapd);
vlan_deinit(hapd);
hostapd_acl_deinit(hapd);
radius_client_deinit(hapd->radius);
hapd->radius = NULL;
radius_server_deinit(hapd->radius_srv);
hapd->radius_srv = NULL;
#ifdef CONFIG_IEEE80211R
l2_packet_deinit(hapd->l2);
#endif /* CONFIG_IEEE80211R */
hostapd_deinit_wps(hapd);
#ifdef EAP_TLS_FUNCS
if (hapd->ssl_ctx) {
tls_deinit(hapd->ssl_ctx);
hapd->ssl_ctx = NULL;
}
#endif /* EAP_TLS_FUNCS */
#ifdef EAP_SERVER
if (hapd->eap_sim_db_priv) {
eap_sim_db_deinit(hapd->eap_sim_db_priv);
hapd->eap_sim_db_priv = NULL;
}
#endif /* EAP_SERVER */
if (hapd->interface_added &&
hostapd_bss_remove(hapd, hapd->conf->iface)) {
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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)
return 0;
for (i = 0; i < 4; i++) {
if (hapd->conf->ssid.wep.key[i] &&
hostapd_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])) {
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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))
return 0;
wpa_printf(MSG_DEBUG, "Flushing old station entries");
if (hostapd_flush(hapd)) {
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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);
hostapd_sta_deauth(hapd, addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
}
return ret;
}
static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
logger_level level, const char *txt)
{
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#ifndef CONFIG_NO_HOSTAPD_LOGGER
struct hostapd_data *hapd = ctx;
int hlevel;
switch (level) {
case LOGGER_WARNING:
hlevel = HOSTAPD_LEVEL_WARNING;
break;
case LOGGER_INFO:
hlevel = HOSTAPD_LEVEL_INFO;
break;
case LOGGER_DEBUG:
default:
hlevel = HOSTAPD_LEVEL_DEBUG;
break;
}
hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
2009-01-12 20:21:31 +01:00
#endif /* CONFIG_NO_HOSTAPD_LOGGER */
}
static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
u16 reason)
{
struct hostapd_data *hapd = ctx;
struct sta_info *sta;
wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
"STA " MACSTR " reason %d",
__func__, MAC2STR(addr), reason);
sta = ap_get_sta(hapd, addr);
hostapd_sta_deauth(hapd, addr, reason);
if (sta == NULL)
return;
sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_AUTHORIZED);
eloop_cancel_timeout(ap_handle_timer, hapd, sta);
eloop_register_timeout(0, 0, ap_handle_timer, hapd, sta);
sta->timeout_next = STA_REMOVE;
}
static void hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
{
struct hostapd_data *hapd = ctx;
michael_mic_failure(hapd, addr, 0);
}
static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
wpa_eapol_variable var, int value)
{
struct hostapd_data *hapd = ctx;
struct sta_info *sta = ap_get_sta(hapd, addr);
if (sta == NULL)
return;
switch (var) {
case WPA_EAPOL_portEnabled:
ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
break;
case WPA_EAPOL_portValid:
ieee802_1x_notify_port_valid(sta->eapol_sm, value);
break;
case WPA_EAPOL_authorized:
ieee802_1x_set_sta_authorized(hapd, sta, value);
break;
case WPA_EAPOL_portControl_Auto:
if (sta->eapol_sm)
sta->eapol_sm->portControl = Auto;
break;
case WPA_EAPOL_keyRun:
if (sta->eapol_sm)
sta->eapol_sm->keyRun = value ? TRUE : FALSE;
break;
case WPA_EAPOL_keyAvailable:
if (sta->eapol_sm)
sta->eapol_sm->eap_if->eapKeyAvailable =
value ? TRUE : FALSE;
break;
case WPA_EAPOL_keyDone:
if (sta->eapol_sm)
sta->eapol_sm->keyDone = value ? TRUE : FALSE;
break;
case WPA_EAPOL_inc_EapolFramesTx:
if (sta->eapol_sm)
sta->eapol_sm->dot1xAuthEapolFramesTx++;
break;
}
}
static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
wpa_eapol_variable var)
{
struct hostapd_data *hapd = ctx;
struct sta_info *sta = ap_get_sta(hapd, addr);
if (sta == NULL || sta->eapol_sm == NULL)
return -1;
switch (var) {
case WPA_EAPOL_keyRun:
return sta->eapol_sm->keyRun;
case WPA_EAPOL_keyAvailable:
return sta->eapol_sm->eap_if->eapKeyAvailable;
default:
return -1;
}
}
static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
const u8 *prev_psk)
{
struct hostapd_data *hapd = ctx;
return hostapd_get_psk(hapd->conf, addr, prev_psk);
}
static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
size_t *len)
{
struct hostapd_data *hapd = ctx;
const u8 *key;
size_t keylen;
struct sta_info *sta;
sta = ap_get_sta(hapd, addr);
if (sta == NULL)
return -1;
key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
if (key == NULL)
return -1;
if (keylen > *len)
keylen = *len;
os_memcpy(msk, key, keylen);
*len = keylen;
return 0;
}
static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, wpa_alg alg,
const u8 *addr, int idx, u8 *key,
size_t key_len)
{
struct hostapd_data *hapd = ctx;
const char *ifname = hapd->conf->iface;
if (vlan_id > 0) {
ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
if (ifname == NULL)
return -1;
}
return hostapd_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
key, key_len);
}
static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
u8 *seq)
{
struct hostapd_data *hapd = ctx;
return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
}
static int hostapd_wpa_auth_get_seqnum_igtk(void *ctx, const u8 *addr, int idx,
u8 *seq)
{
struct hostapd_data *hapd = ctx;
return hostapd_get_seqnum_igtk(hapd->conf->iface, hapd, addr, idx,
seq);
}
static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
const u8 *data, size_t data_len,
int encrypt)
{
struct hostapd_data *hapd = ctx;
return hostapd_send_eapol(hapd, addr, data, data_len, encrypt);
}
static int hostapd_wpa_auth_for_each_sta(
void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
void *cb_ctx)
{
struct hostapd_data *hapd = ctx;
struct sta_info *sta;
for (sta = hapd->sta_list; sta; sta = sta->next) {
if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
return 1;
}
return 0;
}
struct wpa_auth_iface_iter_data {
int (*cb)(struct wpa_authenticator *sm, void *ctx);
void *cb_ctx;
};
static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
{
struct wpa_auth_iface_iter_data *data = ctx;
size_t i;
for (i = 0; i < iface->num_bss; i++) {
if (data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
return 1;
}
return 0;
}
static int hostapd_wpa_auth_for_each_auth(
void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
void *cb_ctx)
{
struct wpa_auth_iface_iter_data data;
data.cb = cb;
data.cb_ctx = cb_ctx;
return hostapd_for_each_interface(wpa_auth_iface_iter, &data);
}
static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
const u8 *data, size_t data_len)
{
struct hostapd_data *hapd = ctx;
if (hapd->driver && hapd->driver->send_ether)
return hapd->driver->send_ether(hapd->drv_priv, dst,
hapd->own_addr, proto,
data, data_len);
if (hapd->l2 == NULL)
return -1;
return l2_packet_send(hapd->l2, dst, proto, data, data_len);
}
#ifdef CONFIG_IEEE80211R
static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
const u8 *data, size_t data_len)
{
struct hostapd_data *hapd = ctx;
int res;
struct ieee80211_mgmt *m;
size_t mlen;
struct sta_info *sta;
sta = ap_get_sta(hapd, dst);
if (sta == NULL || sta->wpa_sm == NULL)
return -1;
m = os_zalloc(sizeof(*m) + data_len);
if (m == NULL)
return -1;
mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_ACTION);
os_memcpy(m->da, dst, ETH_ALEN);
os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
os_memcpy(&m->u, data, data_len);
res = hostapd_send_mgmt_frame(hapd, (u8 *) m, mlen);
os_free(m);
return res;
}
static struct wpa_state_machine *
hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
{
struct hostapd_data *hapd = ctx;
struct sta_info *sta;
sta = ap_sta_add(hapd, sta_addr);
if (sta == NULL)
return NULL;
if (sta->wpa_sm)
return sta->wpa_sm;
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
if (sta->wpa_sm == NULL) {
ap_free_sta(hapd, sta);
return NULL;
}
sta->auth_alg = WLAN_AUTH_FT;
return sta->wpa_sm;
}
static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
size_t len)
{
struct hostapd_data *hapd = ctx;
wpa_ft_rrb_rx(hapd->wpa_auth, src_addr, buf, len);
}
#endif /* CONFIG_IEEE80211R */
/**
* 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) {
2009-01-08 15:57:04 +01:00
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]) {
2009-01-08 15:57:04 +01:00
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;
}
static int hostapd_setup_wpa(struct hostapd_data *hapd)
{
struct wpa_auth_config _conf;
struct wpa_auth_callbacks cb;
const u8 *wpa_ie;
size_t wpa_ie_len;
hostapd_wpa_auth_conf(hapd->conf, &_conf);
os_memset(&cb, 0, sizeof(cb));
cb.ctx = hapd;
cb.logger = hostapd_wpa_auth_logger;
cb.disconnect = hostapd_wpa_auth_disconnect;
cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
cb.set_eapol = hostapd_wpa_auth_set_eapol;
cb.get_eapol = hostapd_wpa_auth_get_eapol;
cb.get_psk = hostapd_wpa_auth_get_psk;
cb.get_msk = hostapd_wpa_auth_get_msk;
cb.set_key = hostapd_wpa_auth_set_key;
cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
cb.get_seqnum_igtk = hostapd_wpa_auth_get_seqnum_igtk;
cb.send_eapol = hostapd_wpa_auth_send_eapol;
cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
cb.send_ether = hostapd_wpa_auth_send_ether;
#ifdef CONFIG_IEEE80211R
cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
cb.add_sta = hostapd_wpa_auth_add_sta;
#endif /* CONFIG_IEEE80211R */
hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
if (hapd->wpa_auth == NULL) {
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wpa_printf(MSG_ERROR, "WPA initialization failed.");
return -1;
}
if (hostapd_set_privacy(hapd, 1)) {
wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
"for interface %s", hapd->conf->iface);
return -1;
}
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.");
return -1;
}
if (rsn_preauth_iface_init(hapd)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "Initialization of RSN "
"pre-authentication failed.");
return -1;
}
return 0;
}
static int hostapd_setup_radius_srv(struct hostapd_data *hapd,
struct hostapd_bss_config *conf)
{
struct radius_server_conf srv;
os_memset(&srv, 0, sizeof(srv));
srv.client_file = conf->radius_server_clients;
srv.auth_port = conf->radius_server_auth_port;
srv.conf_ctx = conf;
srv.eap_sim_db_priv = hapd->eap_sim_db_priv;
srv.ssl_ctx = hapd->ssl_ctx;
srv.pac_opaque_encr_key = conf->pac_opaque_encr_key;
srv.eap_fast_a_id = conf->eap_fast_a_id;
srv.eap_fast_a_id_len = conf->eap_fast_a_id_len;
srv.eap_fast_a_id_info = conf->eap_fast_a_id_info;
srv.eap_fast_prov = conf->eap_fast_prov;
srv.pac_key_lifetime = conf->pac_key_lifetime;
srv.pac_key_refresh_time = conf->pac_key_refresh_time;
srv.eap_sim_aka_result_ind = conf->eap_sim_aka_result_ind;
srv.tnc = conf->tnc;
srv.wps = hapd->wps;
srv.ipv6 = conf->radius_server_ipv6;
srv.get_eap_user = hostapd_radius_get_eap_user;
srv.eap_req_id_text = conf->eap_req_id_text;
srv.eap_req_id_text_len = conf->eap_req_id_text_len;
hapd->radius_srv = radius_server_init(&srv);
if (hapd->radius_srv == NULL) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "RADIUS server initialization failed.");
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;
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) {
2009-01-08 15:57:04 +01:00
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_bss_add(hapd->iface->bss[0], hapd->conf->iface,
hapd->own_addr)) {
2009-01-08 15:57:04 +01:00
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) {
2009-01-08 15:57:04 +01:00
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)) {
2009-01-08 15:57:04 +01:00
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)) {
2009-01-08 15:57:04 +01:00
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)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "Could not set SSID for kernel driver");
return -1;
}
if (wpa_debug_level == MSG_MSGDUMP)
conf->radius->msg_dumps = 1;
hapd->radius = radius_client_init(hapd, conf->radius);
if (hapd->radius == NULL) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "RADIUS client initialization failed.");
return -1;
}
if (hostapd_acl_init(hapd)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "ACL initialization failed.");
return -1;
}
if (hostapd_init_wps(hapd, conf))
return -1;
if (ieee802_1x_init(hapd)) {
2009-01-08 15:57:04 +01:00
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)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "Accounting initialization failed.");
return -1;
}
if (hapd->conf->ieee802_11f &&
(hapd->iapp = iapp_init(hapd, hapd->conf->iapp_iface)) == NULL) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "IEEE 802.11F (IAPP) initialization "
"failed.");
return -1;
}
if (hostapd_ctrl_iface_init(hapd)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "Failed to setup control interface");
return -1;
}
if (!hostapd_drv_none(hapd) && vlan_init(hapd)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "VLAN initialization failed.");
return -1;
}
#ifdef CONFIG_IEEE80211R
if (!hostapd_drv_none(hapd)) {
hapd->l2 = l2_packet_init(hapd->conf->iface, NULL, ETH_P_RRB,
hostapd_rrb_receive, hapd, 0);
if (hapd->l2 == NULL &&
(hapd->driver == NULL ||
hapd->driver->send_ether == NULL)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "Failed to open l2_packet "
"interface");
return -1;
}
}
#endif /* CONFIG_IEEE80211R */
ieee802_11_set_beacon(hapd);
if (conf->radius_server_clients &&
hostapd_setup_radius_srv(hapd, conf))
return -1;
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)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_DEBUG, "Failed to set TX queue "
"parameters for queue %d.", i);
/* Continue anyway */
}
}
}
static int hostapd_radius_get_eap_user(void *ctx, const u8 *identity,
size_t identity_len, int phase2,
struct eap_user *user)
{
const struct hostapd_eap_user *eap_user;
int i, count;
eap_user = hostapd_get_eap_user(ctx, identity, identity_len, phase2);
if (eap_user == NULL)
return -1;
if (user == NULL)
return 0;
os_memset(user, 0, sizeof(*user));
count = EAP_USER_MAX_METHODS;
if (count > EAP_MAX_METHODS)
count = EAP_MAX_METHODS;
for (i = 0; i < count; i++) {
user->methods[i].vendor = eap_user->methods[i].vendor;
user->methods[i].method = eap_user->methods[i].method;
}
if (eap_user->password) {
user->password = os_malloc(eap_user->password_len);
if (user->password == NULL)
return -1;
os_memcpy(user->password, eap_user->password,
eap_user->password_len);
user->password_len = eap_user->password_len;
user->password_hash = eap_user->password_hash;
}
user->force_version = eap_user->force_version;
user->ttls_auth = eap_user->ttls_auth;
return 0;
}
static int setup_interface(struct hostapd_iface *iface)
{
struct hostapd_data *hapd = iface->bss[0];
struct hostapd_bss_config *conf = hapd->conf;
size_t i;
char country[4];
u8 *b = conf->bssid;
/*
* Initialize the driver interface and make sure that all BSSes get
* configured with a pointer to this driver interface.
*/
if (!(b[0] | b[1] | b[2] | b[3] | b[4] | b[5]))
b = NULL;
hapd->drv_priv = hostapd_driver_init(hapd, b);
if (hapd->drv_priv == NULL) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "%s driver initialization failed.",
hapd->driver ? hapd->driver->name : "Unknown");
hapd->driver = NULL;
return -1;
}
for (i = 0; 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 (hapd->iconf->bridge_packets != INTERNAL_BRIDGE_DO_NOT_CONTROL &&
hostapd_set_internal_bridge(hapd, hapd->iconf->bridge_packets)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "Failed to set bridge_packets for "
"kernel driver");
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) {
2009-01-08 15:57:04 +01:00
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];
int freq;
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) {
freq = hostapd_hw_get_freq(hapd, hapd->iconf->channel);
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_DEBUG, "Mode: %s Channel: %d "
"Frequency: %d MHz",
hostapd_hw_mode_txt(hapd->iconf->hw_mode),
hapd->iconf->channel, freq);
if (hostapd_set_freq(hapd, hapd->iconf->hw_mode, freq,
hapd->iconf->channel,
hapd->iconf->ieee80211n,
hapd->iconf->secondary_channel)) {
2009-01-08 15:57:04 +01:00
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)) {
2009-01-08 15:57:04 +01:00
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)) {
2009-01-08 15:57:04 +01:00
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);
2009-03-26 18:09:25 +01:00
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_DEBUG, "%s: Unable to setup interface.",
iface->bss[0]->conf->iface);
eloop_terminate();
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.
*/
2009-03-26 18:23:41 +01:00
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;
hapd->iconf = conf;
hapd->conf = bss;
hapd->iface = hapd_iface;
#ifdef EAP_TLS_FUNCS
if (hapd->conf->eap_server &&
(hapd->conf->ca_cert || hapd->conf->server_cert ||
hapd->conf->dh_file)) {
struct tls_connection_params params;
hapd->ssl_ctx = tls_init(NULL);
if (hapd->ssl_ctx == NULL) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "Failed to initialize TLS");
goto fail;
}
os_memset(&params, 0, sizeof(params));
params.ca_cert = hapd->conf->ca_cert;
params.client_cert = hapd->conf->server_cert;
params.private_key = hapd->conf->private_key;
params.private_key_passwd = hapd->conf->private_key_passwd;
params.dh_file = hapd->conf->dh_file;
if (tls_global_set_params(hapd->ssl_ctx, &params)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "Failed to set TLS parameters");
goto fail;
}
if (tls_global_set_verify(hapd->ssl_ctx,
hapd->conf->check_crl)) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "Failed to enable check_crl");
goto fail;
}
}
#endif /* EAP_TLS_FUNCS */
#ifdef EAP_SERVER
if (hapd->conf->eap_sim_db) {
hapd->eap_sim_db_priv =
eap_sim_db_init(hapd->conf->eap_sim_db,
hostapd_sim_db_cb, hapd);
if (hapd->eap_sim_db_priv == NULL) {
2009-01-08 15:57:04 +01:00
wpa_printf(MSG_ERROR, "Failed to initialize EAP-SIM "
"database interface");
goto fail;
}
}
#endif /* EAP_SERVER */
hapd->driver = hapd->iconf->driver;
return hapd;
#if defined(EAP_TLS_FUNCS) || defined(EAP_SERVER)
fail:
#endif
/* TODO: cleanup allocated resources(?) */
os_free(hapd);
return NULL;
}
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);
if (j == iface->num_bss - 1 && hapd->driver)
hostapd_driver_deinit(hapd);
}
for (j = 0; j < iface->num_bss; j++)
os_free(iface->bss[j]);
hostapd_cleanup_iface(iface);
}
int hostapd_register_probereq_cb(struct hostapd_data *hapd,
void (*cb)(void *ctx, const u8 *sa,
const u8 *ie, size_t ie_len),
void *ctx)
{
struct hostapd_probereq_cb *n;
n = os_realloc(hapd->probereq_cb, (hapd->num_probereq_cb + 1) *
sizeof(struct hostapd_probereq_cb));
if (n == NULL)
return -1;
hapd->probereq_cb = n;
n = &hapd->probereq_cb[hapd->num_probereq_cb];
hapd->num_probereq_cb++;
n->cb = cb;
n->ctx = ctx;
return 0;
}