int hostapd_ctrl_iface_disassociate(struct hostapd_data *hapd,
const char *txtaddr)
{
u8 addr[ETH_ALEN];
struct sta_info *sta;
const char *pos;
u16 reason = WLAN_REASON_PREV_AUTH_NOT_VALID;
wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "CTRL_IFACE DISASSOCIATE %s",
txtaddr);
if (hwaddr_aton(txtaddr, addr))
return -1;
pos = os_strstr(txtaddr, " test=");
if (pos) {
struct ieee80211_mgmt mgmt;
int encrypt;
if (hapd->driver->send_frame == NULL)
return -1;
pos += 6;
encrypt = atoi(pos);
os_memset(&mgmt, 0, sizeof(mgmt));
mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_DISASSOC);
os_memcpy(mgmt.da, addr, ETH_ALEN);
os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
mgmt.u.disassoc.reason_code =
host_to_le16(WLAN_REASON_PREV_AUTH_NOT_VALID);
if (hapd->driver->send_frame(hapd->drv_priv, (u8 *) &mgmt,
IEEE80211_HDRLEN +
sizeof(mgmt.u.deauth),
encrypt) < 0)
return -1;
return 0;
}
#ifdef CONFIG_P2P_MANAGER
pos = os_strstr(txtaddr, " p2p=");
if (pos) {
return p2p_manager_disconnect(hapd, WLAN_FC_STYPE_DISASSOC,
atoi(pos + 5), addr);
}
#endif /* CONFIG_P2P_MANAGER */
pos = os_strstr(txtaddr, " reason=");
if (pos)
reason = atoi(pos + 8);
hostapd_drv_sta_disassoc(hapd, addr, reason);
sta = ap_get_sta(hapd, addr);
if (sta)
ap_sta_disassociate(hapd, sta, reason);
else if (addr[0] == 0xff)
hostapd_free_stas(hapd);
return 0;
}
/**
* hostapd_config_reload_iface_start - Start interface reload
* @hapd_iface: Pointer to interface data.
* @cb: The function to callback when done.
* Returns: 0 if it starts successfully; cb will be called when done.
* -1 on failure; cb will not be called.
*/
static int hostapd_config_reload_iface_start(struct hostapd_iface *hapd_iface,
hostapd_iface_cb cb)
{
struct hostapd_config_change *change = hapd_iface->change;
struct hostapd_config *newconf = change->newconf;
struct hostapd_config *oldconf = change->oldconf;
struct hostapd_data *hapd = hapd_iface->bss[0];
if (hapd_iface->reload_iface_cb) {
wpa_printf(MSG_DEBUG,
"%s: Interface reload already in progress.",
hapd_iface->bss[0]->conf->iface);
return -1;
}
hapd_iface->reload_iface_cb = cb;
if (newconf->bridge_packets != oldconf->bridge_packets &&
hapd->iconf->bridge_packets != INTERNAL_BRIDGE_DO_NOT_CONTROL &&
hostapd_set_internal_bridge(hapd, hapd->iconf->bridge_packets))
printf("Failed to set bridge_packets for kernel driver\n");
if (newconf->channel != oldconf->channel ||
newconf->hw_mode != oldconf->hw_mode ||
rate_array_diff(newconf->supported_rates,
oldconf->supported_rates) ||
rate_array_diff(newconf->basic_rates, oldconf->basic_rates)) {
hostapd_free_stas(hapd);
if (hostapd_get_hw_features(hapd_iface)) {
printf("Could not read HW feature info from the kernel"
" driver.\n");
hapd_iface->reload_iface_cb = NULL;
return -1;
}
if (hostapd_select_hw_mode_start(hapd_iface,
reload_hw_mode_done)) {
printf("Failed to start select hw_mode.\n");
hapd_iface->reload_iface_cb = NULL;
return -1;
}
return 0;
}
eloop_register_timeout(0, 0, reload_iface2_handler, hapd_iface, NULL);
return 0;
}
static int hostapd_flush_old_stations(struct hostapd_data *hapd)
{
int ret = 0;
u8 addr[ETH_ALEN];
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");
os_memset(addr, 0xff, ETH_ALEN);
hostapd_drv_sta_deauth(hapd, addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
hostapd_free_stas(hapd);
return ret;
}
static int hostapd_flush_old_stations(struct hostapd_data *hapd, u16 reason)
{
int ret = 0;
u8 addr[ETH_ALEN];
if (hostapd_drv_none(hapd) || hapd->drv_priv == NULL)
return 0;
wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "Flushing old station entries");
if (hostapd_flush(hapd)) {
wpa_msg(hapd->msg_ctx, MSG_WARNING, "Could not connect to "
"kernel driver");
ret = -1;
}
wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "Deauthenticate all stations");
os_memset(addr, 0xff, ETH_ALEN);
hostapd_drv_sta_deauth(hapd, addr, reason);
hostapd_free_stas(hapd);
return ret;
}
int main(int argc, char *argv[])
{
struct hapd_interfaces interfaces;
int ret = 1, i, j;
int c, debug = 0, daemonize = 0;
for (;;) {
c = getopt(argc, argv, "Bdh");
if (c < 0)
break;
switch (c) {
case 'h':
usage();
break;
case 'd':
debug++;
break;
case 'B':
daemonize++;
break;
default:
usage();
break;
}
}
if (optind == argc)
usage();
interfaces.count = argc - optind;
interfaces.hapd = malloc(interfaces.count * sizeof(hostapd *));
if (interfaces.hapd == NULL) {
printf("malloc failed\n");
exit(1);
}
eloop_init(&interfaces);
eloop_register_signal(SIGHUP, handle_reload, NULL);
eloop_register_signal(SIGINT, handle_term, NULL);
eloop_register_signal(SIGTERM, handle_term, NULL);
eloop_register_signal(SIGUSR1, handle_dump_state, NULL);
for (i = 0; i < interfaces.count; i++) {
printf("Configuration file: %s\n", argv[optind + i]);
interfaces.hapd[i] = hostapd_init(argv[optind + i]);
if (!interfaces.hapd[i])
goto out;
for (j = 0; j < debug; j++) {
if (interfaces.hapd[i]->conf->logger_stdout_level > 0)
interfaces.hapd[i]->conf->
logger_stdout_level--;
interfaces.hapd[i]->conf->debug++;
}
hostapd_set_broadcast_wep(interfaces.hapd[i]);
if (hostapd_setup_interface(interfaces.hapd[i]))
goto out;
}
if (daemonize && daemon(0, 0)) {
perror("daemon");
goto out;
}
openlog("hostapd", 0, LOG_DAEMON);
eloop_run();
for (i = 0; i < interfaces.count; i++) {
hostapd_free_stas(interfaces.hapd[i]);
hostapd_flush_old_stations(interfaces.hapd[i]);
}
ret = 0;
out:
for (i = 0; i < interfaces.count; i++) {
if (!interfaces.hapd[i])
continue;
hostapd_cleanup(interfaces.hapd[i]);
free(interfaces.hapd[i]);
}
free(interfaces.hapd);
eloop_destroy();
closelog();
return ret;
}
void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
union wpa_event_data *data)
{
struct hostapd_data *hapd = ctx;
#ifndef CONFIG_NO_STDOUT_DEBUG
int level = MSG_DEBUG;
if (event == EVENT_RX_MGMT && data->rx_mgmt.frame &&
data->rx_mgmt.frame_len >= 24) {
const struct ieee80211_hdr *hdr;
u16 fc;
hdr = (const struct ieee80211_hdr *) data->rx_mgmt.frame;
fc = le_to_host16(hdr->frame_control);
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_BEACON)
level = MSG_EXCESSIVE;
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_PROBE_REQ)
level = MSG_EXCESSIVE;
}
wpa_dbg(hapd->msg_ctx, level, "Event %s (%d) received",
event_to_string(event), event);
#endif /* CONFIG_NO_STDOUT_DEBUG */
switch (event) {
case EVENT_MICHAEL_MIC_FAILURE:
michael_mic_failure(hapd, data->michael_mic_failure.src, 1);
break;
case EVENT_SCAN_RESULTS:
if (hapd->iface->scan_cb)
hapd->iface->scan_cb(hapd->iface);
break;
case EVENT_WPS_BUTTON_PUSHED:
hostapd_wps_button_pushed(hapd, NULL);
break;
#ifdef NEED_AP_MLME
case EVENT_TX_STATUS:
switch (data->tx_status.type) {
case WLAN_FC_TYPE_MGMT:
hostapd_mgmt_tx_cb(hapd, data->tx_status.data,
data->tx_status.data_len,
data->tx_status.stype,
data->tx_status.ack);
break;
case WLAN_FC_TYPE_DATA:
hostapd_tx_status(hapd, data->tx_status.dst,
data->tx_status.data,
data->tx_status.data_len,
data->tx_status.ack);
break;
}
break;
case EVENT_EAPOL_TX_STATUS:
hostapd_eapol_tx_status(hapd, data->eapol_tx_status.dst,
data->eapol_tx_status.data,
data->eapol_tx_status.data_len,
data->eapol_tx_status.ack);
break;
case EVENT_DRIVER_CLIENT_POLL_OK:
hostapd_client_poll_ok(hapd, data->client_poll.addr);
break;
case EVENT_RX_FROM_UNKNOWN:
hostapd_rx_from_unknown_sta(hapd, data->rx_from_unknown.bssid,
data->rx_from_unknown.addr,
data->rx_from_unknown.wds);
break;
#endif /* NEED_AP_MLME */
case EVENT_RX_MGMT:
if (!data->rx_mgmt.frame)
break;
#ifdef NEED_AP_MLME
if (hostapd_mgmt_rx(hapd, &data->rx_mgmt) > 0)
break;
#endif /* NEED_AP_MLME */
hostapd_action_rx(hapd, &data->rx_mgmt);
break;
case EVENT_RX_PROBE_REQ:
if (data->rx_probe_req.sa == NULL ||
data->rx_probe_req.ie == NULL)
break;
hostapd_probe_req_rx(hapd, data->rx_probe_req.sa,
data->rx_probe_req.da,
data->rx_probe_req.bssid,
data->rx_probe_req.ie,
data->rx_probe_req.ie_len,
data->rx_probe_req.ssi_signal);
break;
case EVENT_NEW_STA:
hostapd_event_new_sta(hapd, data->new_sta.addr);
break;
case EVENT_EAPOL_RX:
hostapd_event_eapol_rx(hapd, data->eapol_rx.src,
data->eapol_rx.data,
data->eapol_rx.data_len);
break;
case EVENT_ASSOC:
if (!data)
return;
hostapd_notif_assoc(hapd, data->assoc_info.addr,
data->assoc_info.req_ies,
data->assoc_info.req_ies_len,
data->assoc_info.reassoc);
break;
case EVENT_DISASSOC:
if (data)
hostapd_notif_disassoc(hapd, data->disassoc_info.addr);
break;
case EVENT_DEAUTH:
if (data)
hostapd_notif_disassoc(hapd, data->deauth_info.addr);
break;
case EVENT_STATION_LOW_ACK:
if (!data)
break;
hostapd_event_sta_low_ack(hapd, data->low_ack.addr);
break;
case EVENT_AUTH:
hostapd_notif_auth(hapd, &data->auth);
break;
case EVENT_CH_SWITCH:
if (!data)
break;
hostapd_event_ch_switch(hapd, data->ch_switch.freq,
data->ch_switch.ht_enabled,
data->ch_switch.ch_offset,
data->ch_switch.ch_width,
data->ch_switch.cf1,
data->ch_switch.cf2);
break;
case EVENT_CONNECT_FAILED_REASON:
if (!data)
break;
hostapd_event_connect_failed_reason(
hapd, data->connect_failed_reason.addr,
data->connect_failed_reason.code);
break;
case EVENT_SURVEY:
hostapd_event_get_survey(hapd->iface, &data->survey_results);
break;
#ifdef NEED_AP_MLME
case EVENT_INTERFACE_UNAVAILABLE:
hostapd_event_iface_unavailable(hapd);
break;
case EVENT_DFS_RADAR_DETECTED:
if (!data)
break;
hostapd_event_dfs_radar_detected(hapd, &data->dfs_event);
break;
case EVENT_DFS_CAC_FINISHED:
if (!data)
break;
hostapd_event_dfs_cac_finished(hapd, &data->dfs_event);
break;
case EVENT_DFS_CAC_ABORTED:
if (!data)
break;
hostapd_event_dfs_cac_aborted(hapd, &data->dfs_event);
break;
case EVENT_DFS_NOP_FINISHED:
if (!data)
break;
hostapd_event_dfs_nop_finished(hapd, &data->dfs_event);
break;
case EVENT_CHANNEL_LIST_CHANGED:
/* channel list changed (regulatory?), update channel list */
/* TODO: check this. hostapd_get_hw_features() initializes
* too much stuff. */
/* hostapd_get_hw_features(hapd->iface); */
hostapd_channel_list_updated(
hapd->iface, data->channel_list_changed.initiator);
break;
case EVENT_DFS_CAC_STARTED:
if (!data)
break;
hostapd_event_dfs_cac_started(hapd, &data->dfs_event);
break;
#endif /* NEED_AP_MLME */
case EVENT_INTERFACE_ENABLED:
wpa_msg(hapd->msg_ctx, MSG_INFO, INTERFACE_ENABLED);
if (hapd->disabled && hapd->started) {
hapd->disabled = 0;
/*
* Try to re-enable interface if the driver stopped it
* when the interface got disabled.
*/
wpa_auth_reconfig_group_keys(hapd->wpa_auth);
hapd->reenable_beacon = 1;
ieee802_11_set_beacon(hapd);
}
break;
case EVENT_INTERFACE_DISABLED:
hostapd_free_stas(hapd);
wpa_msg(hapd->msg_ctx, MSG_INFO, INTERFACE_DISABLED);
hapd->disabled = 1;
break;
#ifdef CONFIG_ACS
case EVENT_ACS_CHANNEL_SELECTED:
hostapd_acs_channel_selected(hapd,
&data->acs_selected_channels);
break;
#endif /* CONFIG_ACS */
default:
wpa_printf(MSG_DEBUG, "Unknown event %d", event);
break;
}
}
/**
* config_reload2 - Part 2 of configuration reloading
* @hapd_iface:
*/
static void config_reload2(struct hostapd_iface *hapd_iface, int status)
{
struct hostapd_config_change *change = hapd_iface->change;
struct hostapd_data *hapd = change->hapd;
struct hostapd_config *newconf = change->newconf;
struct hostapd_config *oldconf = change->oldconf;
int beacon_changed = change->beacon_changed;
struct hostapd_data **new_hapd = change->new_hapd;
struct hostapd_data **old_hapd = change->old_hapd;
int num_old_hapd = change->num_old_hapd;
size_t i, j, max_bss, same_bssid;
struct hostapd_bss_config *newbss, *oldbss;
u8 *prev_addr;
hostapd_iface_cb cb;
free(change);
hapd_iface->change = NULL;
if (status) {
printf("Failed to setup new interface config\n");
cb = hapd_iface->config_reload_cb;
hapd_iface->config_reload_cb = NULL;
/* Invalid configuration - cleanup and terminate hostapd */
hapd_iface->bss = old_hapd;
hapd_iface->num_bss = num_old_hapd;
hapd_iface->conf = hapd->iconf = oldconf;
hapd->conf = &oldconf->bss[0];
hostapd_config_free(newconf);
free(new_hapd);
cb(hapd_iface, -2);
return;
}
/*
* If any BSSes have been removed, added, or had their BSSIDs changed,
* completely remove and reinitialize such BSSes and all the BSSes
* following them since their BSSID might have changed.
*/
max_bss = oldconf->num_bss;
if (max_bss > newconf->num_bss)
max_bss = newconf->num_bss;
for (i = 0; i < max_bss; i++) {
if (strcmp(oldconf->bss[i].iface, newconf->bss[i].iface) != 0
|| hostapd_mac_comp(oldconf->bss[i].bssid,
newconf->bss[i].bssid) != 0)
break;
}
same_bssid = i;
for (i = 0; i < oldconf->num_bss; i++) {
oldbss = &oldconf->bss[i];
newbss = NULL;
for (j = 0; j < newconf->num_bss; j++) {
if (strcmp(oldbss->iface, newconf->bss[j].iface) == 0)
{
newbss = &newconf->bss[j];
break;
}
}
if (newbss && i < same_bssid) {
hapd = hapd_iface->bss[j] = old_hapd[i];
hapd->iconf = newconf;
hapd->conf = newbss;
hostapd_reconfig_bss(hapd, newbss, oldbss, oldconf,
beacon_changed);
} else {
hapd = old_hapd[i];
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
"Removing BSS (ifname %s)\n",
hapd->conf->iface);
hostapd_free_stas(hapd);
/* Send broadcast deauthentication for this BSS, but do
* not clear all STAs from the driver since other BSSes
* may have STA entries. The driver will remove all STA
* entries for this BSS anyway when the interface is
* being removed. */
#if 0
hostapd_deauth_all_stas(hapd);
hostapd_cleanup(hapd);
#endif
free(hapd);
}
}
prev_addr = hapd_iface->bss[0]->own_addr;
hapd = hapd_iface->bss[0];
for (j = 0; j < newconf->num_bss; j++) {
if (hapd_iface->bss[j] != NULL) {
prev_addr = hapd_iface->bss[j]->own_addr;
continue;
}
newbss = &newconf->bss[j];
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "Reconfiguration: adding "
"new BSS (ifname=%s)\n", newbss->iface);
#if 0
hapd = hapd_iface->bss[j] =
hostapd_alloc_bss_data(hapd_iface, newconf, newbss);
#endif
if (hapd == NULL) {
printf("Failed to initialize new BSS\n");
/* FIX: This one is somewhat hard to recover
* from.. Would need to remove this BSS from
* conf and BSS list. */
exit(1);
}
hapd->driver = hapd_iface->bss[0]->driver;
hapd->iface = hapd_iface;
hapd->iconf = newconf;
hapd->conf = newbss;
memcpy(hapd->own_addr, prev_addr, ETH_ALEN);
if (hostapd_mac_comp_empty(hapd->conf->bssid) == 0)
prev_addr = hapd->own_addr;
#if 0
if (hostapd_setup_bss(hapd, j == 0)) {
printf("Failed to setup new BSS\n");
/* FIX */
exit(1);
}
#endif
}
free(old_hapd);
hostapd_config_free(oldconf);
cb = hapd_iface->config_reload_cb;
hapd_iface->config_reload_cb = NULL;
cb(hapd_iface, 0);
}
int main(int argc, char *argv[])
{
struct hapd_interfaces interfaces;
int ret = 1, i, j;
int c, debug = 0, daemonize = 0;
#ifdef JUMPSTART
char *js_passwd = NULL;
#endif
for (;;) {
c = getopt(argc, argv, "BdhKtvj:");
if (c < 0)
break;
switch (c) {
case 'h':
usage();
break;
case 'd':
debug++;
break;
case 'B':
daemonize++;
break;
case 'K':
wpa_debug_show_keys++;
break;
case 't':
wpa_debug_timestamp++;
break;
case 'v':
show_version();
exit(1);
break;
#ifdef JUMPSTART
case 'j':
js_passwd = optarg;
break;
#endif
default:
usage();
break;
}
}
if (optind == argc)
usage();
register_drivers(); /* NB: generated by Makefile */
interfaces.count = argc - optind;
interfaces.hapd = malloc(interfaces.count * sizeof(hostapd *));
if (interfaces.hapd == NULL) {
printf("malloc failed\n");
exit(1);
}
eloop_init(&interfaces);
eloop_register_signal(SIGHUP, handle_reload, NULL);
eloop_register_signal(SIGINT, handle_term, NULL);
eloop_register_signal(SIGTERM, handle_term, NULL);
eloop_register_signal(SIGUSR1, handle_dump_state, NULL);
for (i = 0; i < interfaces.count; i++) {
printf("Configuration file: %s\n", argv[optind + i]);
#ifdef JUMPSTART
interfaces.hapd[i] = hostapd_init(argv[optind + i], js_passwd);
#else
interfaces.hapd[i] = hostapd_init(argv[optind + i]);
#endif
if (!interfaces.hapd[i])
goto out;
for (j = 0; j < debug; j++) {
if (interfaces.hapd[i]->conf->logger_stdout_level > 0)
interfaces.hapd[i]->conf->
logger_stdout_level--;
interfaces.hapd[i]->conf->debug++;
}
if (hostapd_setup_interface(interfaces.hapd[i]))
goto out;
wpa_debug_level -= interfaces.hapd[0]->conf->debug;
}
if (daemonize && daemon(0, 0)) {
perror("daemon");
goto out;
}
openlog("hostapd", 0, LOG_DAEMON);
eloop_run();
for (i = 0; i < interfaces.count; i++) {
hostapd_free_stas(interfaces.hapd[i]);
hostapd_flush_old_stations(interfaces.hapd[i]);
}
ret = 0;
out:
for (i = 0; i < interfaces.count; i++) {
if (!interfaces.hapd[i])
continue;
hostapd_cleanup(interfaces.hapd[i]);
free(interfaces.hapd[i]);
}
free(interfaces.hapd);
eloop_destroy();
closelog();
driver_unregister_all();
return ret;
}
