struct radius_client_data *
radius_client_reconfig(struct radius_client_data *old, void *ctx,
struct hostapd_radius_servers *oldconf,
struct hostapd_radius_servers *newconf)
{
radius_client_flush(old, 0);
if (newconf->retry_primary_interval !=
oldconf->retry_primary_interval ||
newconf->num_auth_servers != oldconf->num_auth_servers ||
newconf->num_acct_servers != oldconf->num_acct_servers ||
radius_servers_diff(newconf->auth_servers, oldconf->auth_servers,
newconf->num_auth_servers) ||
radius_servers_diff(newconf->acct_servers, oldconf->acct_servers,
newconf->num_acct_servers)) {
hostapd_logger(ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_DEBUG,
"Reconfiguring RADIUS client");
radius_client_deinit(old);
return radius_client_init(ctx, newconf);
}
return old;
}
/**
* hostapd_select_hw_mode - Select the hardware mode
* @iface: Pointer to interface data.
* Returns: 0 on success, -1 on failure
*
* Sets up the hardware mode, channel, rates, and passive scanning
* based on the configuration.
*/
int hostapd_select_hw_mode(struct hostapd_iface *iface)
{
int i, j, ok;
if (iface->num_hw_features < 1)
return -1;
iface->current_mode = NULL;
for (i = 0; i < iface->num_hw_features; i++) {
struct hostapd_hw_modes *mode = &iface->hw_features[i];
if (mode->mode == iface->conf->hw_mode) {
iface->current_mode = mode;
break;
}
}
if (iface->current_mode == NULL) {
wpa_printf(MSG_ERROR, "Hardware does not support configured "
"mode");
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured mode "
"(%d)", (int) iface->conf->hw_mode);
return -1;
}
ok = 0;
for (j = 0; j < iface->current_mode->num_channels; j++) {
struct hostapd_channel_data *chan =
&iface->current_mode->channels[j];
if (!(chan->flag & HOSTAPD_CHAN_DISABLED) &&
(chan->chan == iface->conf->channel)) {
ok = 1;
break;
}
}
if (iface->conf->channel == 0) {
/* TODO: could request a scan of neighboring BSSes and select
* the channel automatically */
wpa_printf(MSG_ERROR, "Channel not configured "
"(hw_mode/channel in hostapd.conf)");
return -1;
}
if (ok == 0 && iface->conf->channel != 0) {
hostapd_logger(iface->bss[0], NULL,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Configured channel (%d) not found from the "
"channel list of current mode (%d) %s",
iface->conf->channel,
iface->current_mode->mode,
hostapd_hw_mode_txt(iface->current_mode->mode));
iface->current_mode = NULL;
}
if (iface->current_mode == NULL) {
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured channel");
return -1;
}
if (hostapd_prepare_rates(iface->bss[0], iface->current_mode)) {
wpa_printf(MSG_ERROR, "Failed to prepare rates table.");
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Failed to prepare rates table.");
return -1;
}
return 0;
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *req_ies, size_t req_ies_len, int reassoc)
{
struct sta_info *sta;
int new_assoc, res;
struct ieee802_11_elems elems;
const u8 *ie;
size_t ielen;
#ifdef CONFIG_IEEE80211R
u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
u8 *p = buf;
#endif /* CONFIG_IEEE80211R */
u16 reason = WLAN_REASON_UNSPECIFIED;
u16 status = WLAN_STATUS_SUCCESS;
const u8 *p2p_dev_addr = NULL;
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up being set to station mode while hostapd was
* running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with "
"no address");
return -1;
}
random_add_randomness(addr, ETH_ALEN);
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
if (elems.wps_ie) {
ie = elems.wps_ie - 2;
ielen = elems.wps_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
} else if (elems.rsn_ie) {
ie = elems.rsn_ie - 2;
ielen = elems.rsn_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
} else if (elems.wpa_ie) {
ie = elems.wpa_ie - 2;
ielen = elems.wpa_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
#ifdef CONFIG_HS20
} else if (elems.osen) {
ie = elems.osen - 2;
ielen = elems.osen_len + 2;
wpa_printf(MSG_DEBUG, "STA included OSEN IE in (Re)AssocReq");
#endif /* CONFIG_HS20 */
} else {
ie = NULL;
ielen = 0;
wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in "
"(Re)AssocReq");
}
sta = ap_get_sta(hapd, addr);
if (sta) {
ap_sta_no_session_timeout(hapd, sta);
accounting_sta_stop(hapd, sta);
/*
* Make sure that the previously registered inactivity timer
* will not remove the STA immediately.
*/
sta->timeout_next = STA_NULLFUNC;
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL) {
hostapd_drv_sta_disassoc(hapd, addr,
WLAN_REASON_DISASSOC_AP_BUSY);
return -1;
}
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
#ifdef CONFIG_P2P
if (elems.p2p) {
wpabuf_free(sta->p2p_ie);
sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
P2P_IE_VENDOR_TYPE);
if (sta->p2p_ie)
p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_IEEE80211N
#ifdef NEED_AP_MLME
if (elems.ht_capabilities &&
elems.ht_capabilities_len >=
sizeof(struct ieee80211_ht_capabilities) &&
(hapd->iface->conf->ht_capab &
HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET)) {
struct ieee80211_ht_capabilities *ht_cap =
(struct ieee80211_ht_capabilities *)
elems.ht_capabilities;
if (le_to_host16(ht_cap->ht_capabilities_info) &
HT_CAP_INFO_40MHZ_INTOLERANT)
ht40_intolerant_add(hapd->iface, sta);
}
#endif /* NEED_AP_MLME */
#endif /* CONFIG_IEEE80211N */
#ifdef CONFIG_INTERWORKING
if (elems.ext_capab && elems.ext_capab_len > 4) {
if (elems.ext_capab[4] & 0x01)
sta->qos_map_enabled = 1;
}
#endif /* CONFIG_INTERWORKING */
#ifdef CONFIG_HS20
wpabuf_free(sta->hs20_ie);
if (elems.hs20 && elems.hs20_len > 4) {
sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
elems.hs20_len - 4);
} else
sta->hs20_ie = NULL;
#endif /* CONFIG_HS20 */
#ifdef CONFIG_MTK_P2P
if (elems.wfd && (elems.wfd_len > 0)) {
struct p2p_message msg;
wpabuf_free(sta->wfd_ie);
sta->wfd_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
WFD_IE_VENDOR_TYPE);
if(p2p_parse_wfd_ie(sta->wfd_ie,&msg)==0) {
wpa_printf(MSG_DEBUG, "Change our WFD role and peer wfd_ie");
if(hapd->p2p) {
wpa_printf(MSG_DEBUG, "Change our WFD role and peer wfd_ie 2");
wfd_process_request_and_switch_role(hapd->p2p, &msg, 0);
}
}
}
#endif /* CONFIG_MTK_P2P */
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
#ifdef CONFIG_WPS
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG, "STA did not include "
"WPA/RSN IE in (Re)Association "
"Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
struct wpabuf *wps;
sta->flags |= WLAN_STA_WPS;
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
if (wps) {
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA "
"supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
wpabuf_free(wps);
}
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr,
p2p_dev_addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen,
elems.mdie, elems.mdie_len);
if (res != WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "WPA/RSN information element "
"rejected? (res %u)", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
if (res == WPA_INVALID_GROUP) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_PAIRWISE) {
reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_AKMP) {
reason = WLAN_REASON_AKMP_NOT_VALID;
status = WLAN_STATUS_AKMP_NOT_VALID;
}
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
} else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
}
#endif /* CONFIG_IEEE80211W */
else {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
}
goto fail;
}
#ifdef CONFIG_IEEE80211W
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
sta->sa_query_count > 0)
ap_check_sa_query_timeout(hapd, sta);
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
(sta->auth_alg != WLAN_AUTH_FT)) {
/*
* STA has already been associated with MFP and SA
* Query timeout has not been reached. Reject the
* association attempt temporarily and start SA Query,
* if one is not pending.
*/
if (sta->sa_query_count == 0)
ap_sta_start_sa_query(hapd, sta);
#ifdef CONFIG_IEEE80211R
status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
p - buf);
#endif /* CONFIG_IEEE80211R */
return 0;
}
if (wpa_auth_uses_mfp(sta->wpa_sm))
sta->flags |= WLAN_STA_MFP;
else
sta->flags &= ~WLAN_STA_MFP;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211R
if (sta->auth_alg == WLAN_AUTH_FT) {
status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
req_ies_len);
if (status != WLAN_STATUS_SUCCESS) {
if (status == WLAN_STATUS_INVALID_PMKID)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_MDIE)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_FTIE)
reason = WLAN_REASON_INVALID_IE;
goto fail;
}
}
#endif /* CONFIG_IEEE80211R */
} else if (hapd->conf->wps_state) {
#ifdef CONFIG_WPS
struct wpabuf *wps;
if (req_ies)
wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
WPS_IE_VENDOR_TYPE);
else
wps = NULL;
#ifdef CONFIG_WPS_STRICT
if (wps && wps_validate_assoc_req(wps) < 0) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
wpabuf_free(wps);
goto fail;
}
#endif /* CONFIG_WPS_STRICT */
if (wps) {
sta->flags |= WLAN_STA_WPS;
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA supports "
"WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
wpabuf_free(wps);
#endif /* CONFIG_WPS */
#ifdef CONFIG_HS20
} else if (hapd->conf->osen) {
if (elems.osen == NULL) {
hostapd_logger(
hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO,
"No HS 2.0 OSEN element in association request");
return WLAN_STATUS_INVALID_IE;
}
wpa_printf(MSG_DEBUG, "HS 2.0: OSEN association");
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr, NULL);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_WARNING, "Failed to initialize WPA "
"state machine");
return WLAN_STATUS_UNSPECIFIED_FAILURE;
}
if (wpa_validate_osen(hapd->wpa_auth, sta->wpa_sm,
elems.osen - 2, elems.osen_len + 2) < 0)
return WLAN_STATUS_INVALID_IE;
#endif /* CONFIG_HS20 */
}
#ifdef CONFIG_WPS
skip_wpa_check:
#endif /* CONFIG_WPS */
#ifdef CONFIG_IEEE80211R
p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
sta->auth_alg, req_ies, req_ies_len);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
if (sta->auth_alg == WLAN_AUTH_FT)
ap_sta_set_authorized(hapd, sta, 1);
#else /* CONFIG_IEEE80211R */
/* Keep compiler silent about unused variables */
if (status) {
}
#endif /* CONFIG_IEEE80211R */
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
hostapd_set_sta_flags(hapd, sta);
if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
else
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
/*
[ALPS00326459][6575JB][BSP Package][6577JB][CTS Verifier 4.1_r2][MT6577_PHONE][changelist 996001]
GROUP JOIN 2 cases fail in Wi-Fi Direct Test
*/
#if defined(CONFIG_MTK_P2P) || defined(CONFIG_HOTSPOT_MGR_SUPPORT)
if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa) ||
sta->auth_alg == WLAN_AUTH_FT) {
/*
* Open, static WEP, or FT protocol; no separate authorization
* step.
*/
wpa_msg(hapd->msg_ctx, MSG_INFO,
AP_STA_CONNECTED MACSTR, MAC2STR(sta->addr));
}
#endif /* CONFIG_MTK_P2P || CONFIG_HOTSPOT_MGR_SUPPORT */
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
#ifdef CONFIG_P2P
if (req_ies) {
p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
req_ies, req_ies_len);
}
#endif /* CONFIG_P2P */
return 0;
fail:
#ifdef CONFIG_IEEE80211R
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
#endif /* CONFIG_IEEE80211R */
hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
ap_free_sta(hapd, sta);
return -1;
}
void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
{
hostapd *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
unsigned long next_time = 0;
if (sta->timeout_next == STA_REMOVE) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"local deauth request");
ap_free_sta(hapd, sta);
return;
}
if ((sta->flags & WLAN_STA_ASSOC) &&
(sta->timeout_next == STA_NULLFUNC ||
sta->timeout_next == STA_DISASSOC)) {
int inactive_sec;
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
"Checking STA " MACSTR " inactivity:\n",
MAC2STR(sta->addr));
inactive_sec = hostapd_get_inact_sec(hapd, sta->addr);
if (inactive_sec == -1) {
printf(" Could not get station info from kernel "
"driver for " MACSTR ".\n",
MAC2STR(sta->addr));
} else if (inactive_sec < AP_MAX_INACTIVITY &&
sta->flags & WLAN_STA_ASSOC) {
/* station activity detected; reset timeout state */
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
" Station has been active\n");
sta->timeout_next = STA_NULLFUNC;
next_time = AP_MAX_INACTIVITY - inactive_sec;
}
}
if ((sta->flags & WLAN_STA_ASSOC) &&
sta->timeout_next == STA_DISASSOC &&
!(sta->flags & WLAN_STA_PENDING_POLL)) {
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
" Station has ACKed data poll\n");
/* data nullfunc frame poll did not produce TX errors; assume
* station ACKed it */
sta->timeout_next = STA_NULLFUNC;
next_time = AP_MAX_INACTIVITY;
}
if (next_time) {
eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
sta);
return;
}
if (sta->timeout_next == STA_NULLFUNC &&
(sta->flags & WLAN_STA_ASSOC)) {
/* send data frame to poll STA and check whether this frame
* is ACKed */
struct ieee80211_hdr hdr;
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
" Polling STA with data frame\n");
sta->flags |= WLAN_STA_PENDING_POLL;
/* FIX: WLAN_FC_STYPE_NULLFUNC would be more appropriate, but
* it is apparently not retried so TX Exc events are not
* received for it */
memset(&hdr, 0, sizeof(hdr));
hdr.frame_control =
IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
hdr.frame_control |= host_to_le16(BIT(1));
hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
memcpy(hdr.IEEE80211_DA_FROMDS, sta->addr, ETH_ALEN);
memcpy(hdr.IEEE80211_BSSID_FROMDS, hapd->own_addr, ETH_ALEN);
memcpy(hdr.IEEE80211_SA_FROMDS, hapd->own_addr, ETH_ALEN);
if (hostapd_send_mgmt_frame(hapd, &hdr, sizeof(hdr), 0) < 0)
perror("ap_handle_timer: send");
} else if (sta->timeout_next != STA_REMOVE) {
int deauth = sta->timeout_next == STA_DEAUTH;
printf(" Sending %s info to STA " MACSTR "\n",
deauth ? "deauthentication" : "disassociation",
MAC2STR(sta->addr));
if (deauth) {
hostapd_sta_deauth(hapd, sta->addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
} else {
hostapd_sta_disassoc(
hapd, sta->addr,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
}
}
switch (sta->timeout_next) {
case STA_NULLFUNC:
sta->timeout_next = STA_DISASSOC;
eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
hapd, sta);
break;
case STA_DISASSOC:
sta->flags &= ~WLAN_STA_ASSOC;
ieee802_1x_set_port_enabled(hapd, sta, 0);
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
accounting_sta_stop(hapd, sta);
ieee802_1x_free_station(sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disassociated due to "
"inactivity");
sta->timeout_next = STA_DEAUTH;
eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
hapd, sta);
break;
case STA_DEAUTH:
case STA_REMOVE:
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"inactivity");
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
ap_free_sta(hapd, sta);
break;
}
}
/**
* radius_client_send - Send a RADIUS request
* @radius: RADIUS client context from radius_client_init()
* @msg: RADIUS message to be sent
* @msg_type: Message type (RADIUS_AUTH, RADIUS_ACCT, RADIUS_ACCT_INTERIM)
* @addr: MAC address of the device related to this message or %NULL
* Returns: 0 on success, -1 on failure
*
* This function is used to transmit a RADIUS authentication (RADIUS_AUTH) or
* accounting request (RADIUS_ACCT or RADIUS_ACCT_INTERIM). The only difference
* between accounting and interim accounting messages is that the interim
* message will not be retransmitted. Instead, a callback is used to indicate
* that the transmission failed for the specific station @addr so that a new
* interim accounting update message can be generated with up-to-date session
* data instead of trying to resend old information.
*
* The message is added on the retransmission queue and will be retransmitted
* automatically until a response is received or maximum number of retries
* (RADIUS_CLIENT_MAX_RETRIES) is reached. No such retries are used with
* RADIUS_ACCT_INTERIM, i.e., such a pending message is removed from the queue
* automatically on transmission failure.
*
* The related device MAC address can be used to identify pending messages that
* can be removed with radius_client_flush_auth().
*/
int radius_client_send(struct radius_client_data *radius,
struct radius_msg *msg, RadiusType msg_type,
const u8 *addr)
{
struct hostapd_radius_servers *conf = radius->conf;
const u8 *shared_secret;
size_t shared_secret_len;
char *name;
int s, res;
struct wpabuf *buf;
if (msg_type == RADIUS_ACCT || msg_type == RADIUS_ACCT_INTERIM) {
if (conf->acct_server && radius->acct_sock < 0)
radius_client_init_acct(radius);
if (conf->acct_server == NULL || radius->acct_sock < 0 ||
conf->acct_server->shared_secret == NULL) {
hostapd_logger(radius->ctx, NULL,
HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_INFO,
"No accounting server configured");
return -1;
}
shared_secret = conf->acct_server->shared_secret;
shared_secret_len = conf->acct_server->shared_secret_len;
radius_msg_finish_acct(msg, shared_secret, shared_secret_len);
name = "accounting";
s = radius->acct_sock;
conf->acct_server->requests++;
} else {
if (conf->auth_server && radius->auth_sock < 0)
radius_client_init_auth(radius);
if (conf->auth_server == NULL || radius->auth_sock < 0 ||
conf->auth_server->shared_secret == NULL) {
hostapd_logger(radius->ctx, NULL,
HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_INFO,
"No authentication server configured");
return -1;
}
shared_secret = conf->auth_server->shared_secret;
shared_secret_len = conf->auth_server->shared_secret_len;
radius_msg_finish(msg, shared_secret, shared_secret_len);
name = "authentication";
s = radius->auth_sock;
conf->auth_server->requests++;
}
hostapd_logger(radius->ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_DEBUG, "Sending RADIUS message to %s "
"server", name);
if (conf->msg_dumps)
radius_msg_dump(msg);
buf = radius_msg_get_buf(msg);
res = send(s, wpabuf_head(buf), wpabuf_len(buf), 0);
if (res < 0)
radius_client_handle_send_error(radius, s, msg_type);
radius_client_list_add(radius, msg, msg_type, shared_secret,
shared_secret_len, addr);
return 0;
}
static int radius_client_retransmit(struct radius_client_data *radius,
struct radius_msg_list *entry,
os_time_t now)
{
struct hostapd_radius_servers *conf = radius->conf;
int s;
struct wpabuf *buf;
size_t prev_num_msgs;
u8 *acct_delay_time;
size_t acct_delay_time_len;
if (entry->msg_type == RADIUS_ACCT ||
entry->msg_type == RADIUS_ACCT_INTERIM) {
if (radius->acct_sock < 0)
radius_client_init_acct(radius);
if (radius->acct_sock < 0 && conf->num_acct_servers > 1) {
prev_num_msgs = radius->num_msgs;
radius_client_acct_failover(radius);
if (prev_num_msgs != radius->num_msgs)
return 0;
}
s = radius->acct_sock;
if (entry->attempts == 0)
conf->acct_server->requests++;
else {
conf->acct_server->timeouts++;
conf->acct_server->retransmissions++;
}
} else {
if (radius->auth_sock < 0)
radius_client_init_auth(radius);
if (radius->auth_sock < 0 && conf->num_auth_servers > 1) {
prev_num_msgs = radius->num_msgs;
radius_client_auth_failover(radius);
if (prev_num_msgs != radius->num_msgs)
return 0;
}
s = radius->auth_sock;
if (entry->attempts == 0)
conf->auth_server->requests++;
else {
conf->auth_server->timeouts++;
conf->auth_server->retransmissions++;
}
}
if (entry->msg_type == RADIUS_ACCT_INTERIM) {
wpa_printf(MSG_DEBUG,
"RADIUS: Failed to transmit interim accounting update to "
MACSTR " - drop message and request a new update",
MAC2STR(entry->addr));
if (radius->interim_error_cb)
radius->interim_error_cb(entry->addr,
radius->interim_error_cb_ctx);
return 1;
}
if (s < 0) {
wpa_printf(MSG_INFO,
"RADIUS: No valid socket for retransmission");
return 1;
}
if (entry->msg_type == RADIUS_ACCT &&
radius_msg_get_attr_ptr(entry->msg, RADIUS_ATTR_ACCT_DELAY_TIME,
&acct_delay_time, &acct_delay_time_len,
NULL) == 0 &&
acct_delay_time_len == 4) {
struct radius_hdr *hdr;
u32 delay_time;
/*
* Need to assign a new identifier since attribute contents
* changes.
*/
hdr = radius_msg_get_hdr(entry->msg);
hdr->identifier = radius_client_get_id(radius);
/* Update Acct-Delay-Time to show wait time in queue */
delay_time = now - entry->first_try;
WPA_PUT_BE32(acct_delay_time, delay_time);
wpa_printf(MSG_DEBUG,
"RADIUS: Updated Acct-Delay-Time to %u for retransmission",
delay_time);
radius_msg_finish_acct(entry->msg, entry->shared_secret,
entry->shared_secret_len);
if (radius->conf->msg_dumps)
radius_msg_dump(entry->msg);
}
/* retransmit; remove entry if too many attempts */
entry->attempts++;
hostapd_logger(radius->ctx, entry->addr, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_DEBUG, "Resending RADIUS message (id=%d)",
radius_msg_get_hdr(entry->msg)->identifier);
os_get_reltime(&entry->last_attempt);
buf = radius_msg_get_buf(entry->msg);
if (send(s, wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
if (radius_client_handle_send_error(radius, s, entry->msg_type)
> 0)
return 0;
}
entry->next_try = now + entry->next_wait;
entry->next_wait *= 2;
if (entry->next_wait > RADIUS_CLIENT_MAX_WAIT)
entry->next_wait = RADIUS_CLIENT_MAX_WAIT;
if (entry->attempts >= RADIUS_CLIENT_MAX_RETRIES) {
wpa_printf(MSG_INFO, "RADIUS: Removing un-ACKed message due to too many failed retransmit attempts");
return 1;
}
return 0;
}
int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta,
int old_vlanid)
{
#ifndef CONFIG_NO_VLAN
const char *iface;
struct hostapd_vlan *vlan = NULL;
int ret;
/*
* Do not proceed furthur if the vlan id remains same. We do not want
* duplicate dynamic vlan entries.
*/
if (sta->vlan_id == old_vlanid)
return 0;
/*
* During 1x reauth, if the vlan id changes, then remove the old id and
* proceed furthur to add the new one.
*/
if (old_vlanid > 0)
vlan_remove_dynamic(hapd, old_vlanid);
iface = hapd->conf->iface;
if (sta->ssid->vlan[0])
iface = sta->ssid->vlan;
if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
sta->vlan_id = 0;
else if (sta->vlan_id > 0) {
vlan = hapd->conf->vlan;
while (vlan) {
if (vlan->vlan_id == sta->vlan_id ||
vlan->vlan_id == VLAN_ID_WILDCARD) {
iface = vlan->ifname;
break;
}
vlan = vlan->next;
}
}
if (sta->vlan_id > 0 && vlan == NULL) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
"binding station to (vlan_id=%d)",
sta->vlan_id);
return -1;
} else if (sta->vlan_id > 0 && vlan->vlan_id == VLAN_ID_WILDCARD) {
vlan = vlan_add_dynamic(hapd, vlan, sta->vlan_id);
if (vlan == NULL) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not add "
"dynamic VLAN interface for vlan_id=%d",
sta->vlan_id);
return -1;
}
iface = vlan->ifname;
if (vlan_setup_encryption_dyn(hapd, sta->ssid, iface) != 0) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not "
"configure encryption for dynamic VLAN "
"interface for vlan_id=%d",
sta->vlan_id);
}
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "added new dynamic VLAN "
"interface '%s'", iface);
} else if (vlan && vlan->vlan_id == sta->vlan_id) {
if (sta->vlan_id > 0) {
vlan->dynamic_vlan++;
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "updated existing "
"dynamic VLAN interface '%s'", iface);
}
/*
* Update encryption configuration for statically generated
* VLAN interface. This is only used for static WEP
* configuration for the case where hostapd did not yet know
* which keys are to be used when the interface was added.
*/
if (vlan_setup_encryption_dyn(hapd, sta->ssid, iface) != 0) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not "
"configure encryption for VLAN "
"interface for vlan_id=%d",
sta->vlan_id);
}
}
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "binding station to interface "
"'%s'", iface);
if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
if (ret < 0) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
"entry to vlan_id=%d", sta->vlan_id);
}
return ret;
#else /* CONFIG_NO_VLAN */
return 0;
#endif /* CONFIG_NO_VLAN */
}
static void radius_client_timer(void *eloop_ctx, void *timeout_ctx)
{
struct radius_client_data *radius = eloop_ctx;
struct hostapd_radius_servers *conf = radius->conf;
struct os_time now;
os_time_t first;
struct radius_msg_list *entry, *prev, *tmp;
int auth_failover = 0, acct_failover = 0;
char abuf[50];
entry = radius->msgs;
if (!entry)
return;
os_get_time(&now);
first = 0;
prev = NULL;
while (entry) {
if (now.sec >= entry->next_try &&
radius_client_retransmit(radius, entry, now.sec)) {
if (prev)
prev->next = entry->next;
else
radius->msgs = entry->next;
tmp = entry;
entry = entry->next;
radius_client_msg_free(tmp);
radius->num_msgs--;
continue;
}
if (entry->attempts > RADIUS_CLIENT_NUM_FAILOVER) {
if (entry->msg_type == RADIUS_ACCT ||
entry->msg_type == RADIUS_ACCT_INTERIM)
acct_failover++;
else
auth_failover++;
}
if (first == 0 || entry->next_try < first)
first = entry->next_try;
prev = entry;
entry = entry->next;
}
if (radius->msgs) {
if (first < now.sec)
first = now.sec;
eloop_register_timeout(first - now.sec, 0,
radius_client_timer, radius, NULL);
hostapd_logger(radius->ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_DEBUG, "Next RADIUS client "
"retransmit in %ld seconds",
(long int) (first - now.sec));
}
if (auth_failover && conf->num_auth_servers > 1) {
struct hostapd_radius_server *next, *old;
old = conf->auth_server;
hostapd_logger(radius->ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_NOTICE,
"No response from Authentication server "
"%s:%d - failover",
hostapd_ip_txt(&old->addr, abuf, sizeof(abuf)),
old->port);
for (entry = radius->msgs; entry; entry = entry->next) {
if (entry->msg_type == RADIUS_AUTH)
old->timeouts++;
}
next = old + 1;
if (next > &(conf->auth_servers[conf->num_auth_servers - 1]))
next = conf->auth_servers;
conf->auth_server = next;
radius_change_server(radius, next, old,
radius->auth_serv_sock,
radius->auth_serv_sock6, 1);
}
if (acct_failover && conf->num_acct_servers > 1) {
struct hostapd_radius_server *next, *old;
old = conf->acct_server;
hostapd_logger(radius->ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_NOTICE,
"No response from Accounting server "
"%s:%d - failover",
hostapd_ip_txt(&old->addr, abuf, sizeof(abuf)),
old->port);
for (entry = radius->msgs; entry; entry = entry->next) {
if (entry->msg_type == RADIUS_ACCT ||
entry->msg_type == RADIUS_ACCT_INTERIM)
old->timeouts++;
}
next = old + 1;
if (next > &conf->acct_servers[conf->num_acct_servers - 1])
next = conf->acct_servers;
conf->acct_server = next;
radius_change_server(radius, next, old,
radius->acct_serv_sock,
radius->acct_serv_sock6, 0);
}
}
static void handle_assoc_cb(hostapd *hapd, struct ieee80211_mgmt *mgmt,
size_t len, int reassoc, int ok)
{
u16 status;
struct sta_info *sta;
int new_assoc = 1;
if (!ok) {
hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"did not acknowledge association response");
return;
}
if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) :
sizeof(mgmt->u.assoc_req))) {
printf("handle_assoc_cb(reassoc=%d) - too short payload "
"(len=%lu)\n", reassoc, (unsigned long) len);
return;
}
if (reassoc)
status = le_to_host16(mgmt->u.reassoc_resp.status_code);
else
status = le_to_host16(mgmt->u.assoc_resp.status_code);
sta = ap_get_sta(hapd, mgmt->da);
if (!sta) {
printf("handle_assoc_cb: STA " MACSTR " not found\n",
MAC2STR(mgmt->da));
return;
}
if (status != WLAN_STATUS_SUCCESS)
goto fail;
/* Stop previous accounting session, if one is started, and allocate
* new session id for the new session. */
accounting_sta_stop(hapd, sta);
accounting_sta_get_id(hapd, sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO,
"associated (aid %d, accounting session %08X-%08X)",
sta->aid, sta->acct_session_id_hi,
sta->acct_session_id_lo);
if (sta->flags & WLAN_STA_ASSOC)
new_assoc = 0;
sta->flags |= WLAN_STA_ASSOC;
if (hostapd_sta_add(hapd, sta->addr, sta->aid, sta->capability,
sta->tx_supp_rates)) {
printf("Could not add station to kernel driver.\n");
}
wpa_sm_event(hapd, sta, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
fail:
/* Copy of the association request is not needed anymore */
if (sta->last_assoc_req) {
free(sta->last_assoc_req);
sta->last_assoc_req = NULL;
}
}
/* Process the RADIUS frames from Authentication Server */
static RadiusRxResult
ieee802_1x_receive_auth(struct wpa_supplicant *wpa_s,
struct radius_msg *msg, struct radius_msg *req,
u8 *shared_secret, size_t shared_secret_len,
void *data)
{
#if 0
u32 session_timeout, termination_action;
int session_timeout_set;
int acct_interim_interval;
#endif
#if 0
sta = ap_get_sta_radius_identifier(hapd, msg->hdr->identifier);
if (sta == NULL) {
wpa_printf(MSG_DEBUG, "IEEE 802.1X: Could not "
"find matching station for this RADIUS "
"message\n");
return RADIUS_RX_UNKNOWN;
}
#endif
/* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
* present when packet contains an EAP-Message attribute */
if (msg->hdr->code == RADIUS_CODE_ACCESS_REJECT &&
radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
0) < 0 &&
radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
wpa_printf(MSG_DEBUG, "Allowing RADIUS "
"Access-Reject without Message-Authenticator "
"since it does not include EAP-Message\n");
} else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
req)) {
printf("Incoming RADIUS packet did not have correct "
"Message-Authenticator - dropped\n");
return RADIUS_RX_UNKNOWN;
}
if (msg->hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
msg->hdr->code != RADIUS_CODE_ACCESS_REJECT &&
msg->hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
printf("Unknown RADIUS message code\n");
return RADIUS_RX_UNKNOWN;
}
wpa_s->radius_identifier = -1;
wpa_printf(MSG_DEBUG, "RADIUS packet matching with station");
if (wpa_s->last_recv_radius) {
radius_msg_free(wpa_s->last_recv_radius);
free(wpa_s->last_recv_radius);
}
wpa_s->last_recv_radius = msg;
#if 0
session_timeout_set =
!radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
&session_timeout);
if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
&termination_action))
termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
if (hapd->conf->radius_acct_interim_interval == 0 &&
msg->hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
&acct_interim_interval) == 0) {
if (acct_interim_interval < 60) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE8021X,
HOSTAPD_LEVEL_INFO,
"ignored too small "
"Acct-Interim-Interval %d",
acct_interim_interval);
} else
sta->acct_interim_interval = acct_interim_interval;
}
switch (msg->hdr->code) {
case RADIUS_CODE_ACCESS_ACCEPT:
/* draft-congdon-radius-8021x-22.txt, Ch. 3.17 */
if (session_timeout_set &&
termination_action ==
RADIUS_TERMINATION_ACTION_RADIUS_REQUEST) {
sta->eapol_sm->reauth_timer.reAuthPeriod =
session_timeout;
} else if (session_timeout_set)
ap_sta_session_timeout(hapd, sta, session_timeout);
sta->eapol_sm->be_auth.aSuccess = TRUE;
ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
shared_secret_len);
if (sta->eapol_sm->keyAvailable) {
pmksa_cache_add(hapd, sta, sta->eapol_key_crypt,
session_timeout_set ?
session_timeout : -1);
}
break;
case RADIUS_CODE_ACCESS_REJECT:
sta->eapol_sm->be_auth.aFail = TRUE;
break;
case RADIUS_CODE_ACCESS_CHALLENGE:
if (session_timeout_set) {
/* RFC 2869, Ch. 2.3.2
* draft-congdon-radius-8021x-22.txt, Ch. 3.17 */
sta->eapol_sm->be_auth.suppTimeout = session_timeout;
}
sta->eapol_sm->be_auth.aReq = TRUE;
break;
}
#else
switch (msg->hdr->code) {
case RADIUS_CODE_ACCESS_ACCEPT:
wpa_s->radius_access_accept_received = 1;
ieee802_1x_get_keys(wpa_s, msg, req, shared_secret,
shared_secret_len);
break;
case RADIUS_CODE_ACCESS_REJECT:
wpa_s->radius_access_reject_received = 1;
break;
}
#endif
ieee802_1x_decapsulate_radius(wpa_s);
/* eapol_sm_step(sta->eapol_sm); */
if (msg->hdr->code == RADIUS_CODE_ACCESS_ACCEPT ||
msg->hdr->code == RADIUS_CODE_ACCESS_REJECT) {
eloop_terminate();
}
return RADIUS_RX_QUEUED;
}
/**
* hostapd_select_hw_mode - Select the hardware mode
* @iface: Pointer to interface data.
* Returns: 0 on success, -1 on failure
*
* Sets up the hardware mode, channel, rates, and passive scanning
* based on the configuration.
*/
int hostapd_select_hw_mode(struct hostapd_iface *iface)
{
int i, j, ok, ret;
if (iface->num_hw_features < 1)
return -1;
iface->current_mode = NULL;
for (i = 0; i < iface->num_hw_features; i++) {
struct hostapd_hw_modes *mode = &iface->hw_features[i];
if (mode->mode == (int) iface->conf->hw_mode) {
iface->current_mode = mode;
break;
}
}
if (iface->current_mode == NULL) {
wpa_printf(MSG_ERROR, "Hardware does not support configured "
"mode");
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured mode "
"(%d)", (int) iface->conf->hw_mode);
return -1;
}
ok = 0;
for (j = 0; j < iface->current_mode->num_channels; j++) {
struct hostapd_channel_data *chan =
&iface->current_mode->channels[j];
if (!(chan->flag & HOSTAPD_CHAN_DISABLED) &&
(chan->chan == iface->conf->channel)) {
ok = 1;
break;
}
}
if (ok == 0 && iface->conf->channel != 0) {
hostapd_logger(iface->bss[0], NULL,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Configured channel (%d) not found from the "
"channel list of current mode (%d) %s",
iface->conf->channel,
iface->current_mode->mode,
hostapd_hw_mode_txt(iface->current_mode->mode));
iface->current_mode = NULL;
}
if (iface->current_mode == NULL) {
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured channel");
return -1;
}
if (hostapd_prepare_rates(iface->bss[0], iface->current_mode)) {
wpa_printf(MSG_ERROR, "Failed to prepare rates table.");
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Failed to prepare rates table.");
return -1;
}
ret = hostapd_passive_scan(iface->bss[0], 0,
iface->conf->passive_scan_mode,
iface->conf->passive_scan_interval,
iface->conf->passive_scan_listen,
NULL, NULL);
if (ret) {
if (ret == -1) {
wpa_printf(MSG_DEBUG, "Passive scanning not "
"supported");
} else {
wpa_printf(MSG_ERROR, "Could not set passive "
"scanning: %s", strerror(ret));
}
ret = 0;
}
return ret;
}
int ap_sta_bind_vlan(struct hostapd_data *hapd, struct sta_info *sta)
{
#ifndef CONFIG_NO_VLAN
const char *iface;
struct hostapd_vlan *vlan = NULL;
int ret;
int old_vlanid = sta->vlan_id_bound;
iface = hapd->conf->iface;
if (hapd->conf->ssid.vlan[0])
iface = hapd->conf->ssid.vlan;
if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
sta->vlan_id = 0;
else if (sta->vlan_id > 0) {
struct hostapd_vlan *wildcard_vlan = NULL;
vlan = hapd->conf->vlan;
while (vlan) {
if (vlan->vlan_id == sta->vlan_id)
break;
if (vlan->vlan_id == VLAN_ID_WILDCARD)
wildcard_vlan = vlan;
vlan = vlan->next;
}
if (!vlan)
vlan = wildcard_vlan;
if (vlan)
iface = vlan->ifname;
}
/*
* Do not increment ref counters if the VLAN ID remains same, but do
* not skip hostapd_drv_set_sta_vlan() as hostapd_drv_sta_remove() might
* have been called before.
*/
if (sta->vlan_id == old_vlanid)
goto skip_counting;
if (sta->vlan_id > 0 && vlan == NULL) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not find VLAN for "
"binding station to (vlan_id=%d)",
sta->vlan_id);
ret = -1;
goto done;
} else if (sta->vlan_id > 0 && vlan->vlan_id == VLAN_ID_WILDCARD) {
vlan = vlan_add_dynamic(hapd, vlan, sta->vlan_id);
if (vlan == NULL) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not add "
"dynamic VLAN interface for vlan_id=%d",
sta->vlan_id);
ret = -1;
goto done;
}
iface = vlan->ifname;
if (vlan_setup_encryption_dyn(hapd, iface) != 0) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not "
"configure encryption for dynamic VLAN "
"interface for vlan_id=%d",
sta->vlan_id);
}
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "added new dynamic VLAN "
"interface '%s'", iface);
} else if (vlan && vlan->vlan_id == sta->vlan_id) {
if (vlan->dynamic_vlan > 0) {
vlan->dynamic_vlan++;
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "updated existing "
"dynamic VLAN interface '%s'", iface);
}
/*
* Update encryption configuration for statically generated
* VLAN interface. This is only used for static WEP
* configuration for the case where hostapd did not yet know
* which keys are to be used when the interface was added.
*/
if (vlan_setup_encryption_dyn(hapd, iface) != 0) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not "
"configure encryption for VLAN "
"interface for vlan_id=%d",
sta->vlan_id);
}
}
/* ref counters have been increased, so mark the station */
sta->vlan_id_bound = sta->vlan_id;
skip_counting:
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "binding station to interface "
"'%s'", iface);
if (wpa_auth_sta_set_vlan(sta->wpa_sm, sta->vlan_id) < 0)
wpa_printf(MSG_INFO, "Failed to update VLAN-ID for WPA");
ret = hostapd_drv_set_sta_vlan(iface, hapd, sta->addr, sta->vlan_id);
if (ret < 0) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "could not bind the STA "
"entry to vlan_id=%d", sta->vlan_id);
}
/* During 1x reauth, if the vlan id changes, then remove the old id. */
if (old_vlanid > 0 && old_vlanid != sta->vlan_id)
vlan_remove_dynamic(hapd, old_vlanid);
done:
return ret;
#else /* CONFIG_NO_VLAN */
return 0;
#endif /* CONFIG_NO_VLAN */
}
static int
radius_change_server(struct radius_client_data *radius,
struct hostapd_radius_server *nserv,
struct hostapd_radius_server *oserv,
int sock, int sock6, int auth)
{
struct sockaddr_in serv;
#ifdef CONFIG_IPV6
struct sockaddr_in6 serv6;
#endif /* CONFIG_IPV6 */
struct sockaddr *addr;
socklen_t addrlen;
char abuf[50];
int sel_sock;
struct radius_msg_list *entry;
hostapd_logger(radius->ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_INFO,
"%s server %s:%d",
auth ? "Authentication" : "Accounting",
hostapd_ip_txt(&nserv->addr, abuf, sizeof(abuf)),
nserv->port);
if (!oserv || nserv->shared_secret_len != oserv->shared_secret_len ||
os_memcmp(nserv->shared_secret, oserv->shared_secret,
nserv->shared_secret_len) != 0) {
/* Pending RADIUS packets used different shared secret, so
* they need to be modified. Update accounting message
* authenticators here. Authentication messages are removed
* since they would require more changes and the new RADIUS
* server may not be prepared to receive them anyway due to
* missing state information. Client will likely retry
* authentication, so this should not be an issue. */
if (auth)
radius_client_flush(radius, 1);
else {
radius_client_update_acct_msgs(
radius, nserv->shared_secret,
nserv->shared_secret_len);
}
}
/* Reset retry counters for the new server */
for (entry = radius->msgs; entry; entry = entry->next) {
if ((auth && entry->msg_type != RADIUS_AUTH) ||
(!auth && entry->msg_type != RADIUS_ACCT))
continue;
entry->next_try = entry->first_try + RADIUS_CLIENT_FIRST_WAIT;
entry->attempts = 0;
entry->next_wait = RADIUS_CLIENT_FIRST_WAIT * 2;
}
if (radius->msgs) {
eloop_cancel_timeout(radius_client_timer, radius, NULL);
eloop_register_timeout(RADIUS_CLIENT_FIRST_WAIT, 0,
radius_client_timer, radius, NULL);
}
switch (nserv->addr.af) {
case AF_INET:
os_memset(&serv, 0, sizeof(serv));
serv.sin_family = AF_INET;
serv.sin_addr.s_addr = nserv->addr.u.v4.s_addr;
serv.sin_port = htons(nserv->port);
addr = (struct sockaddr *) &serv;
addrlen = sizeof(serv);
sel_sock = sock;
break;
#ifdef CONFIG_IPV6
case AF_INET6:
os_memset(&serv6, 0, sizeof(serv6));
serv6.sin6_family = AF_INET6;
os_memcpy(&serv6.sin6_addr, &nserv->addr.u.v6,
sizeof(struct in6_addr));
serv6.sin6_port = htons(nserv->port);
addr = (struct sockaddr *) &serv6;
addrlen = sizeof(serv6);
sel_sock = sock6;
break;
#endif /* CONFIG_IPV6 */
default:
return -1;
}
if (connect(sel_sock, addr, addrlen) < 0) {
perror("connect[radius]");
return -1;
}
if (auth)
radius->auth_sock = sel_sock;
else
radius->acct_sock = sel_sock;
return 0;
}
void hostapd_2040_coex_action(struct hostapd_data *hapd,
const struct ieee80211_mgmt *mgmt, size_t len)
{
struct hostapd_iface *iface = hapd->iface;
struct ieee80211_2040_bss_coex_ie *bc_ie;
struct ieee80211_2040_intol_chan_report *ic_report;
int is_ht40_allowed = 1;
int i;
const u8 *start = (const u8 *) mgmt;
const u8 *data = start + IEEE80211_HDRLEN + 2;
hostapd_logger(hapd, mgmt->sa, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG, "hostapd_public_action - action=%d",
mgmt->u.action.u.public_action.action);
if (!(iface->conf->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
return;
if (len < IEEE80211_HDRLEN + 2 + sizeof(*bc_ie))
return;
bc_ie = (struct ieee80211_2040_bss_coex_ie *) data;
if (bc_ie->element_id != WLAN_EID_20_40_BSS_COEXISTENCE ||
bc_ie->length < 1) {
wpa_printf(MSG_DEBUG, "Unexpected IE (%u,%u) in coex report",
bc_ie->element_id, bc_ie->length);
return;
}
if (len < IEEE80211_HDRLEN + 2 + 2 + bc_ie->length)
return;
data += 2 + bc_ie->length;
wpa_printf(MSG_DEBUG, "20/40 BSS Coexistence Information field: 0x%x",
bc_ie->coex_param);
if (bc_ie->coex_param & WLAN_20_40_BSS_COEX_20MHZ_WIDTH_REQ) {
hostapd_logger(hapd, mgmt->sa,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"20 MHz BSS width request bit is set in BSS coexistence information field");
is_ht40_allowed = 0;
}
if (bc_ie->coex_param & WLAN_20_40_BSS_COEX_40MHZ_INTOL) {
hostapd_logger(hapd, mgmt->sa,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"40 MHz intolerant bit is set in BSS coexistence information field");
is_ht40_allowed = 0;
}
if (start + len - data >= 3 &&
data[0] == WLAN_EID_20_40_BSS_INTOLERANT && data[1] >= 1) {
u8 ielen = data[1];
if (ielen > start + len - data - 2)
return;
ic_report = (struct ieee80211_2040_intol_chan_report *) data;
wpa_printf(MSG_DEBUG,
"20/40 BSS Intolerant Channel Report: Operating Class %u",
ic_report->op_class);
/* Go through the channel report to find any BSS there in the
* affected channel range */
for (i = 0; i < ielen - 1; i++) {
u8 chan = ic_report->variable[i];
if (is_40_allowed(iface, chan))
continue;
hostapd_logger(hapd, mgmt->sa,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"20_40_INTOLERANT channel %d reported",
chan);
is_ht40_allowed = 0;
}
}
wpa_printf(MSG_DEBUG, "is_ht40_allowed=%d num_sta_ht40_intolerant=%d",
is_ht40_allowed, iface->num_sta_ht40_intolerant);
if (!is_ht40_allowed &&
(iface->drv_flags & WPA_DRIVER_FLAGS_HT_2040_COEX)) {
if (iface->conf->secondary_channel) {
hostapd_logger(hapd, mgmt->sa,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO,
"Switching to 20 MHz operation");
iface->conf->secondary_channel = 0;
ieee802_11_set_beacons(iface);
}
if (!iface->num_sta_ht40_intolerant &&
iface->conf->obss_interval) {
unsigned int delay_time;
delay_time = OVERLAPPING_BSS_TRANS_DELAY_FACTOR *
iface->conf->obss_interval;
eloop_cancel_timeout(ap_ht2040_timeout, hapd->iface,
NULL);
eloop_register_timeout(delay_time, 0, ap_ht2040_timeout,
hapd->iface, NULL);
wpa_printf(MSG_DEBUG,
"Reschedule HT 20/40 timeout to occur in %u seconds",
delay_time);
}
}
}
static void handle_assoc_cb(hostapd *hapd, struct ieee80211_mgmt *mgmt,
size_t len, int reassoc, int ok)
{
u16 status;
struct prism2_hostapd_param param;
struct sta_info *sta;
int new_assoc = 1;
if (!ok) {
hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"did not acknowledge association response");
return;
}
if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) :
sizeof(mgmt->u.assoc_req))) {
printf("handle_assoc_cb(reassoc=%d) - too short payload "
"(len=%d)\n", reassoc, len);
return;
}
if (reassoc)
status = le_to_host16(mgmt->u.reassoc_resp.status_code);
else
status = le_to_host16(mgmt->u.assoc_resp.status_code);
sta = ap_get_sta(hapd, mgmt->da);
if (!sta) {
printf("handle_assoc_cb: STA " MACSTR " not found\n",
MAC2STR(mgmt->da));
return;
}
if (status != WLAN_STATUS_SUCCESS)
goto fail;
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated (aid %d)", sta->aid);
if (sta->flags & WLAN_STA_ASSOC)
new_assoc = 0;
sta->flags |= WLAN_STA_ASSOC;
memset(¶m, 0, sizeof(param));
param.cmd = PRISM2_HOSTAPD_ADD_STA;
memcpy(param.sta_addr, sta->addr, ETH_ALEN);
param.u.add_sta.aid = sta->aid;
param.u.add_sta.capability = sta->capability;
param.u.add_sta.tx_supp_rates = sta->tx_supp_rates;
if (hostapd_ioctl(hapd, ¶m, sizeof(param))) {
printf("Could not add station to kernel driver.\n");
}
if (new_assoc)
hostapd_new_assoc_sta(hapd, sta);
if (sta->eapol_sm)
sta->eapol_sm->portEnabled = TRUE;
fail:
/* Copy of the association request is not needed anymore */
if (sta->last_assoc_req) {
free(sta->last_assoc_req);
sta->last_assoc_req = NULL;
}
}
/**
* hostapd_select_hw_mode - Select the hardware mode
* @iface: Pointer to interface data.
* Returns: 0 on success, < 0 on failure
*
* Sets up the hardware mode, channel, rates, and passive scanning
* based on the configuration.
*/
int hostapd_select_hw_mode(struct hostapd_iface *iface)
{
int i, j, ok;
if (iface->num_hw_features < 1)
return -1;
iface->current_mode = NULL;
for (i = 0; i < iface->num_hw_features; i++) {
struct hostapd_hw_modes *mode = &iface->hw_features[i];
if (mode->mode == iface->conf->hw_mode) {
iface->current_mode = mode;
break;
}
}
if (iface->current_mode == NULL) {
wpa_printf(MSG_ERROR, "Hardware does not support configured "
"mode");
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured mode "
"(%d) (hw_mode in hostapd.conf)",
(int) iface->conf->hw_mode);
return -2;
}
ok = 0;
for (j = 0; j < iface->current_mode->num_channels; j++) {
struct hostapd_channel_data *chan =
&iface->current_mode->channels[j];
if (chan->chan == iface->conf->channel) {
if (chan->flag & HOSTAPD_CHAN_DISABLED) {
wpa_printf(MSG_ERROR,
"channel [%i] (%i) is disabled for "
"use in AP mode, flags: 0x%x%s%s%s",
j, chan->chan, chan->flag,
chan->flag & HOSTAPD_CHAN_NO_IBSS ?
" NO-IBSS" : "",
chan->flag &
HOSTAPD_CHAN_PASSIVE_SCAN ?
" PASSIVE-SCAN" : "",
chan->flag & HOSTAPD_CHAN_RADAR ?
" RADAR" : "");
} else {
ok = 1;
break;
}
}
}
if (ok && iface->conf->secondary_channel) {
int sec_ok = 0;
int sec_chan = iface->conf->channel +
iface->conf->secondary_channel * 4;
for (j = 0; j < iface->current_mode->num_channels; j++) {
struct hostapd_channel_data *chan =
&iface->current_mode->channels[j];
if (!(chan->flag & HOSTAPD_CHAN_DISABLED) &&
(chan->chan == sec_chan)) {
sec_ok = 1;
break;
}
}
if (!sec_ok) {
hostapd_logger(iface->bss[0], NULL,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Configured HT40 secondary channel "
"(%d) not found from the channel list "
"of current mode (%d) %s",
sec_chan, iface->current_mode->mode,
hostapd_hw_mode_txt(
iface->current_mode->mode));
ok = 0;
}
}
if (iface->conf->channel == 0) {
/* TODO: could request a scan of neighboring BSSes and select
* the channel automatically */
wpa_printf(MSG_ERROR, "Channel not configured "
"(hw_mode/channel in hostapd.conf)");
return -3;
}
if (ok == 0 && iface->conf->channel != 0) {
hostapd_logger(iface->bss[0], NULL,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Configured channel (%d) not found from the "
"channel list of current mode (%d) %s",
iface->conf->channel,
iface->current_mode->mode,
hostapd_hw_mode_txt(iface->current_mode->mode));
iface->current_mode = NULL;
}
if (iface->current_mode == NULL) {
hostapd_logger(iface->bss[0], NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"Hardware does not support configured channel");
return -4;
}
return 0;
}
static int
bsd_new_sta(struct bsd_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
{
struct hostapd_data *hapd = drv->hapd;
struct hostapd_config *conf = hapd->conf;
struct sta_info *sta;
struct ieee80211req_wpaie ie;
int new_assoc, ielen, res;
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
sta = ap_sta_add(hapd, addr);
if (sta == NULL)
return -1;
/*
* Fetch and validate any negotiated WPA/RSN parameters.
*/
if (conf->wpa) {
memset(&ie, 0, sizeof(ie));
memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
if (get80211var(drv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
printf("Failed to get WPA/RSN information element.\n");
return -1; /* XXX not right */
}
ielen = ie.wpa_ie[1];
if (ielen == 0) {
printf("No WPA/RSN information element for station!\n");
return -1; /* XXX not right */
}
ielen += 2;
res = wpa_validate_wpa_ie(hapd, sta, ie.wpa_ie, ielen,
ie.wpa_ie[0] == WLAN_EID_RSN ?
HOSTAPD_WPA_VERSION_WPA2 :
HOSTAPD_WPA_VERSION_WPA);
if (res != WPA_IE_OK) {
printf("WPA/RSN information element rejected? "
"(res %u)\n", res);
return -1;
}
if (sta->wpa_ie != NULL)
free(sta->wpa_ie);
sta->wpa_ie = malloc(ielen);
if (sta->wpa_ie == NULL) {
printf("No memory for WPA/RSN information element!\n");
return -1;
}
memcpy(sta->wpa_ie, ie.wpa_ie, ielen);
sta->wpa_ie_len = ielen;
} else {
if (sta->wpa_ie != NULL)
free(sta->wpa_ie);
sta->wpa_ie = NULL;
sta->wpa_ie_len = 0;
}
/*
* Now that the internal station state is setup
* kick the authenticator into action.
*/
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_ASSOC;
if (conf->wpa)
wpa_sm_event(hapd, sta, WPA_ASSOC);
if (new_assoc)
hostapd_new_assoc_sta(hapd, sta);
else if (conf->wpa)
wpa_sm_event(hapd, sta, WPA_REAUTH);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
return 0;
}
static void handle_auth(hostapd *hapd, struct ieee80211_mgmt *mgmt, size_t len)
{
u16 auth_alg, auth_transaction, status_code;
u16 resp = WLAN_STATUS_SUCCESS;
struct sta_info *sta = NULL;
int res;
u16 fc;
u8 *challenge = NULL;
u32 session_timeout, acct_interim_interval;
if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.auth)) {
printf("handle_auth - too short payload (len=%lu)\n",
(unsigned long) len);
return;
}
auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
auth_transaction = le_to_host16(mgmt->u.auth.auth_transaction);
status_code = le_to_host16(mgmt->u.auth.status_code);
fc = le_to_host16(mgmt->frame_control);
if (len >= IEEE80211_HDRLEN + sizeof(mgmt->u.auth) +
2 + WLAN_AUTH_CHALLENGE_LEN &&
mgmt->u.auth.variable[0] == WLAN_EID_CHALLENGE &&
mgmt->u.auth.variable[1] == WLAN_AUTH_CHALLENGE_LEN)
challenge = &mgmt->u.auth.variable[2];
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
"authentication: STA=" MACSTR " auth_alg=%d "
"auth_transaction=%d status_code=%d wep=%d%s\n",
MAC2STR(mgmt->sa), auth_alg, auth_transaction,
status_code, !!(fc & WLAN_FC_ISWEP),
challenge ? " challenge" : "");
if (hapd->assoc_ap_state == AUTHENTICATE && auth_transaction == 2 &&
memcmp(mgmt->sa, hapd->conf->assoc_ap_addr, ETH_ALEN) == 0 &&
memcmp(mgmt->bssid, hapd->conf->assoc_ap_addr, ETH_ALEN) == 0) {
if (status_code != 0) {
printf("Authentication (as station) with AP "
MACSTR " failed (status_code=%d)\n",
MAC2STR(hapd->conf->assoc_ap_addr),
status_code);
return;
}
printf("Authenticated (as station) with AP " MACSTR "\n",
MAC2STR(hapd->conf->assoc_ap_addr));
ieee802_11_sta_associate(hapd, NULL);
return;
}
if (hapd->tkip_countermeasures) {
resp = WLAN_REASON_MICHAEL_MIC_FAILURE;
goto fail;
}
if (!(((hapd->conf->auth_algs & HOSTAPD_AUTH_OPEN) &&
auth_alg == WLAN_AUTH_OPEN) ||
((hapd->conf->auth_algs & HOSTAPD_AUTH_SHARED_KEY) &&
auth_alg == WLAN_AUTH_SHARED_KEY))) {
printf("Unsupported authentication algorithm (%d)\n",
auth_alg);
resp = WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
goto fail;
}
if (!(auth_transaction == 1 ||
(auth_alg == WLAN_AUTH_SHARED_KEY && auth_transaction == 3))) {
printf("Unknown authentication transaction number (%d)\n",
auth_transaction);
resp = WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION;
goto fail;
}
if (memcmp(mgmt->sa, hapd->own_addr, ETH_ALEN) == 0) {
printf("Station " MACSTR " not allowed to authenticate.\n",
MAC2STR(mgmt->sa));
resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
res = hostapd_allowed_address(hapd, mgmt->sa, (u8 *) mgmt, len,
&session_timeout,
&acct_interim_interval);
if (res == HOSTAPD_ACL_REJECT) {
printf("Station " MACSTR " not allowed to authenticate.\n",
MAC2STR(mgmt->sa));
resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
if (res == HOSTAPD_ACL_PENDING) {
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "Authentication frame "
"from " MACSTR " waiting for an external "
"authentication\n", MAC2STR(mgmt->sa));
/* Authentication code will re-send the authentication frame
* after it has received (and cached) information from the
* external source. */
return;
}
sta = ap_sta_add(hapd, mgmt->sa);
if (!sta) {
resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
sta->flags &= ~WLAN_STA_PREAUTH;
ieee802_1x_notify_pre_auth(sta->eapol_sm, 0);
if (hapd->conf->radius->acct_interim_interval == 0 &&
acct_interim_interval)
sta->acct_interim_interval = acct_interim_interval;
if (res == HOSTAPD_ACL_ACCEPT_TIMEOUT)
ap_sta_session_timeout(hapd, sta, session_timeout);
else
ap_sta_no_session_timeout(hapd, sta);
switch (auth_alg) {
case WLAN_AUTH_OPEN:
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"authentication OK (open system)");
#ifdef IEEE80211_REQUIRE_AUTH_ACK
/* Station will be marked authenticated if it ACKs the
* authentication reply. */
#else
sta->flags |= WLAN_STA_AUTH;
wpa_sm_event(hapd, sta, WPA_AUTH);
#endif
break;
case WLAN_AUTH_SHARED_KEY:
resp = auth_shared_key(hapd, sta, auth_transaction, challenge,
fc & WLAN_FC_ISWEP);
break;
}
fail:
send_auth_reply(hapd, mgmt, auth_alg, auth_transaction + 1, resp,
sta ? sta->challenge : NULL);
}
/**
* ap_handle_timer - Per STA timer handler
* @eloop_ctx: struct hostapd_data *
* @timeout_ctx: struct sta_info *
*
* This function is called to check station activity and to remove inactive
* stations.
*/
void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
unsigned long next_time = 0;
wpa_printf(MSG_DEBUG, "%s: " MACSTR " flags=0x%x timeout_next=%d",
__func__, MAC2STR(sta->addr), sta->flags,
sta->timeout_next);
if (sta->timeout_next == STA_REMOVE) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"local deauth request");
ap_free_sta(hapd, sta);
return;
}
if ((sta->flags & WLAN_STA_ASSOC) &&
(sta->timeout_next == STA_NULLFUNC ||
sta->timeout_next == STA_DISASSOC)) {
int inactive_sec;
/*
* Add random value to timeout so that we don't end up bouncing
* all stations at the same time if we have lots of associated
* stations that are idle (but keep re-associating).
*/
int fuzz = os_random() % 20;
inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
if (inactive_sec == -1) {
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"Check inactivity: Could not "
"get station info from kernel driver for "
MACSTR, MAC2STR(sta->addr));
/*
* The driver may not support this functionality.
* Anyway, try again after the next inactivity timeout,
* but do not disconnect the station now.
*/
next_time = hapd->conf->ap_max_inactivity + fuzz;
} else if (inactive_sec < hapd->conf->ap_max_inactivity &&
sta->flags & WLAN_STA_ASSOC) {
/* station activity detected; reset timeout state */
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"Station " MACSTR " has been active %is ago",
MAC2STR(sta->addr), inactive_sec);
sta->timeout_next = STA_NULLFUNC;
next_time = hapd->conf->ap_max_inactivity + fuzz -
inactive_sec;
} else {
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"Station " MACSTR " has been "
"inactive too long: %d sec, max allowed: %d",
MAC2STR(sta->addr), inactive_sec,
hapd->conf->ap_max_inactivity);
if (hapd->conf->skip_inactivity_poll)
sta->timeout_next = STA_DISASSOC;
}
}
if ((sta->flags & WLAN_STA_ASSOC) &&
sta->timeout_next == STA_DISASSOC &&
!(sta->flags & WLAN_STA_PENDING_POLL) &&
!hapd->conf->skip_inactivity_poll) {
wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR
" has ACKed data poll", MAC2STR(sta->addr));
/* data nullfunc frame poll did not produce TX errors; assume
* station ACKed it */
sta->timeout_next = STA_NULLFUNC;
next_time = hapd->conf->ap_max_inactivity;
}
if (next_time) {
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%lu seconds)",
__func__, MAC2STR(sta->addr), next_time);
eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
sta);
return;
}
if (sta->timeout_next == STA_NULLFUNC &&
(sta->flags & WLAN_STA_ASSOC)) {
wpa_printf(MSG_DEBUG, " Polling STA");
sta->flags |= WLAN_STA_PENDING_POLL;
hostapd_drv_poll_client(hapd, hapd->own_addr, sta->addr,
sta->flags & WLAN_STA_WMM);
} else if (sta->timeout_next != STA_REMOVE) {
int deauth = sta->timeout_next == STA_DEAUTH;
wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
"Timeout, sending %s info to STA " MACSTR,
deauth ? "deauthentication" : "disassociation",
MAC2STR(sta->addr));
if (deauth) {
hostapd_drv_sta_deauth(
hapd, sta->addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
} else {
hostapd_drv_sta_disassoc(
hapd, sta->addr,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
}
}
switch (sta->timeout_next) {
case STA_NULLFUNC:
sta->timeout_next = STA_DISASSOC;
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%d seconds - AP_DISASSOC_DELAY)",
__func__, MAC2STR(sta->addr), AP_DISASSOC_DELAY);
eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
hapd, sta);
break;
case STA_DISASSOC:
ap_sta_set_authorized(hapd, sta, 0);
sta->flags &= ~WLAN_STA_ASSOC;
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
accounting_sta_stop(hapd, sta);
ieee802_1x_free_station(sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disassociated due to "
"inactivity");
sta->timeout_next = STA_DEAUTH;
wpa_printf(MSG_DEBUG, "%s: register ap_handle_timer timeout "
"for " MACSTR " (%d seconds - AP_DEAUTH_DELAY)",
__func__, MAC2STR(sta->addr), AP_DEAUTH_DELAY);
eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
hapd, sta);
mlme_disassociate_indication(
hapd, sta, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
break;
case STA_DEAUTH:
case STA_REMOVE:
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"inactivity (timer DEAUTH/REMOVE)");
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
mlme_deauthenticate_indication(
hapd, sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
ap_free_sta(hapd, sta);
break;
}
}
static void handle_assoc(hostapd *hapd, struct ieee80211_mgmt *mgmt,
size_t len, int reassoc)
{
u16 capab_info, listen_interval;
u16 resp = WLAN_STATUS_SUCCESS;
u8 *pos, *wpa_ie;
size_t wpa_ie_len;
int send_deauth = 0, send_len, left, i;
struct sta_info *sta;
struct ieee802_11_elems elems;
if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) :
sizeof(mgmt->u.assoc_req))) {
printf("handle_assoc(reassoc=%d) - too short payload (len=%lu)"
"\n", reassoc, (unsigned long) len);
return;
}
if (reassoc) {
capab_info = le_to_host16(mgmt->u.reassoc_req.capab_info);
listen_interval = le_to_host16(
mgmt->u.reassoc_req.listen_interval);
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
"reassociation request: STA=" MACSTR
" capab_info=0x%02x "
"listen_interval=%d current_ap=" MACSTR "\n",
MAC2STR(mgmt->sa), capab_info, listen_interval,
MAC2STR(mgmt->u.reassoc_req.current_ap));
left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.reassoc_req));
pos = mgmt->u.reassoc_req.variable;
} else {
capab_info = le_to_host16(mgmt->u.assoc_req.capab_info);
listen_interval = le_to_host16(
mgmt->u.assoc_req.listen_interval);
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
"association request: STA=" MACSTR
" capab_info=0x%02x listen_interval=%d\n",
MAC2STR(mgmt->sa), capab_info, listen_interval);
left = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.assoc_req));
pos = mgmt->u.assoc_req.variable;
}
sta = ap_get_sta(hapd, mgmt->sa);
if (sta == NULL || (sta->flags & WLAN_STA_AUTH) == 0) {
printf("STA " MACSTR " trying to associate before "
"authentication\n", MAC2STR(mgmt->sa));
if (sta) {
printf(" sta: addr=" MACSTR " aid=%d flags=0x%04x\n",
MAC2STR(sta->addr), sta->aid, sta->flags);
}
send_deauth = 1;
resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
if (hapd->tkip_countermeasures) {
resp = WLAN_REASON_MICHAEL_MIC_FAILURE;
goto fail;
}
sta->capability = capab_info;
/* followed by SSID and Supported rates */
if (ieee802_11_parse_elems(hapd, pos, left, &elems, 1) == ParseFailed
|| !elems.ssid) {
printf("STA " MACSTR " sent invalid association request\n",
MAC2STR(sta->addr));
resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
if (elems.ssid_len != hapd->conf->ssid_len ||
memcmp(elems.ssid, hapd->conf->ssid, elems.ssid_len) != 0) {
printf("Station " MACSTR " tried to associate with "
"unknown SSID '", MAC2STR(sta->addr));
ieee802_11_print_ssid(elems.ssid, elems.ssid_len);
printf("'\n");
resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
if (elems.supp_rates) {
if (elems.supp_rates_len > sizeof(sta->supported_rates)) {
printf("STA " MACSTR ": Invalid supported rates "
"element length %d\n", MAC2STR(sta->addr),
elems.supp_rates_len);
resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
memset(sta->supported_rates, 0, sizeof(sta->supported_rates));
memcpy(sta->supported_rates, elems.supp_rates,
elems.supp_rates_len);
sta->tx_supp_rates = 0;
for (i = 0; i < elems.supp_rates_len; i++) {
if ((sta->supported_rates[i] & 0x7f) == 2)
sta->tx_supp_rates |= WLAN_RATE_1M;
if ((sta->supported_rates[i] & 0x7f) == 4)
sta->tx_supp_rates |= WLAN_RATE_2M;
if ((sta->supported_rates[i] & 0x7f) == 11)
sta->tx_supp_rates |= WLAN_RATE_5M5;
if ((sta->supported_rates[i] & 0x7f) == 22)
sta->tx_supp_rates |= WLAN_RATE_11M;
}
} else
sta->tx_supp_rates = 0xff;
if ((hapd->conf->wpa & HOSTAPD_WPA_VERSION_WPA2) && elems.rsn_ie) {
wpa_ie = elems.rsn_ie;
wpa_ie_len = elems.rsn_ie_len;
} else if ((hapd->conf->wpa & HOSTAPD_WPA_VERSION_WPA) &&
elems.wpa_ie) {
wpa_ie = elems.wpa_ie;
wpa_ie_len = elems.wpa_ie_len;
} else {
wpa_ie = NULL;
wpa_ie_len = 0;
}
if (hapd->conf->wpa && wpa_ie == NULL) {
printf("STA " MACSTR ": No WPA/RSN IE in association "
"request\n", MAC2STR(sta->addr));
resp = WLAN_STATUS_INVALID_IE;
goto fail;
}
if (hapd->conf->wpa) {
int res;
wpa_ie -= 2;
wpa_ie_len += 2;
res = wpa_validate_wpa_ie(hapd, sta, wpa_ie, wpa_ie_len,
elems.rsn_ie ?
HOSTAPD_WPA_VERSION_WPA2 :
HOSTAPD_WPA_VERSION_WPA);
if (res == WPA_INVALID_GROUP)
resp = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
else if (res == WPA_INVALID_PAIRWISE)
resp = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
else if (res == WPA_INVALID_AKMP)
resp = WLAN_STATUS_AKMP_NOT_VALID;
else if (res != WPA_IE_OK)
resp = WLAN_STATUS_INVALID_IE;
if (resp != WLAN_STATUS_SUCCESS)
goto fail;
free(sta->wpa_ie);
sta->wpa_ie = malloc(wpa_ie_len);
if (sta->wpa_ie == NULL) {
resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
goto fail;
}
sta->wpa_ie_len = wpa_ie_len;
memcpy(sta->wpa_ie, wpa_ie, wpa_ie_len);
}
/* get a unique AID */
if (sta->aid > 0) {
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
" old AID %d\n", sta->aid);
} else {
for (sta->aid = 1; sta->aid <= MAX_AID_TABLE_SIZE; sta->aid++)
if (hapd->sta_aid[sta->aid - 1] == NULL)
break;
if (sta->aid > MAX_AID_TABLE_SIZE) {
sta->aid = 0;
resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
printf(" no room for more AIDs\n");
goto fail;
} else {
hapd->sta_aid[sta->aid - 1] = sta;
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL,
" new AID %d\n", sta->aid);
}
}
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"association OK (aid %d)", sta->aid);
/* Station will be marked associated, after it acknowledges AssocResp
*/
if (sta->last_assoc_req)
free(sta->last_assoc_req);
sta->last_assoc_req = (struct ieee80211_mgmt *) malloc(len);
if (sta->last_assoc_req)
memcpy(sta->last_assoc_req, mgmt, len);
/* Make sure that the previously registered inactivity timer will not
* remove the STA immediately. */
sta->timeout_next = STA_NULLFUNC;
fail:
/* use the queued buffer for transmission because it is large enough
* and not needed anymore */
mgmt->frame_control =
IEEE80211_FC(WLAN_FC_TYPE_MGMT,
(send_deauth ? WLAN_FC_STYPE_DEAUTH :
(reassoc ? WLAN_FC_STYPE_REASSOC_RESP :
WLAN_FC_STYPE_ASSOC_RESP)));
memcpy(mgmt->da, mgmt->sa, ETH_ALEN);
memcpy(mgmt->sa, hapd->own_addr, ETH_ALEN);
/* Addr3 = BSSID - already set */
send_len = IEEE80211_HDRLEN;
if (send_deauth) {
send_len += sizeof(mgmt->u.deauth);
mgmt->u.deauth.reason_code = host_to_le16(resp);
} else {
u8 *p;
send_len += sizeof(mgmt->u.assoc_resp);
mgmt->u.assoc_resp.capab_info =
host_to_le16(hostapd_own_capab_info(hapd));
mgmt->u.assoc_resp.status_code = host_to_le16(resp);
mgmt->u.assoc_resp.aid = host_to_le16((sta ? sta->aid : 0)
| BIT(14) | BIT(15));
/* Supported rates */
p = hostapd_eid_supp_rates(hapd, mgmt->u.assoc_resp.variable);
send_len += p - mgmt->u.assoc_resp.variable;
/* Request TX callback */
mgmt->frame_control |= host_to_le16(BIT(1));
}
if (hostapd_send_mgmt_frame(hapd, mgmt, send_len, 0) < 0)
perror("handle_assoc: send");
}
static int
radius_change_server(struct radius_client_data *radius,
struct hostapd_radius_server *nserv,
struct hostapd_radius_server *oserv,
int sock, int sock6, int auth)
{
struct sockaddr_in serv, claddr;
#ifdef CONFIG_IPV6
struct sockaddr_in6 serv6, claddr6;
#endif /* CONFIG_IPV6 */
struct sockaddr *addr, *cl_addr;
socklen_t addrlen, claddrlen;
char abuf[50];
int sel_sock;
struct radius_msg_list *entry;
struct hostapd_radius_servers *conf = radius->conf;
struct sockaddr_in disconnect_addr = {
.sin_family = AF_UNSPEC,
};
hostapd_logger(radius->ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_INFO,
"%s server %s:%d",
auth ? "Authentication" : "Accounting",
hostapd_ip_txt(&nserv->addr, abuf, sizeof(abuf)),
nserv->port);
if (oserv && oserv == nserv) {
/* Reconnect to same server, flush */
if (auth)
radius_client_flush(radius, 1);
}
if (oserv && oserv != nserv &&
(nserv->shared_secret_len != oserv->shared_secret_len ||
os_memcmp(nserv->shared_secret, oserv->shared_secret,
nserv->shared_secret_len) != 0)) {
/* Pending RADIUS packets used different shared secret, so
* they need to be modified. Update accounting message
* authenticators here. Authentication messages are removed
* since they would require more changes and the new RADIUS
* server may not be prepared to receive them anyway due to
* missing state information. Client will likely retry
* authentication, so this should not be an issue. */
if (auth)
radius_client_flush(radius, 1);
else {
radius_client_update_acct_msgs(
radius, nserv->shared_secret,
nserv->shared_secret_len);
}
}
/* Reset retry counters for the new server */
for (entry = radius->msgs; oserv && oserv != nserv && entry;
entry = entry->next) {
if ((auth && entry->msg_type != RADIUS_AUTH) ||
(!auth && entry->msg_type != RADIUS_ACCT))
continue;
entry->next_try = entry->first_try + RADIUS_CLIENT_FIRST_WAIT;
entry->attempts = 0;
entry->next_wait = RADIUS_CLIENT_FIRST_WAIT * 2;
}
if (radius->msgs) {
eloop_cancel_timeout(radius_client_timer, radius, NULL);
eloop_register_timeout(RADIUS_CLIENT_FIRST_WAIT, 0,
radius_client_timer, radius, NULL);
}
switch (nserv->addr.af) {
case AF_INET:
os_memset(&serv, 0, sizeof(serv));
serv.sin_family = AF_INET;
serv.sin_addr.s_addr = nserv->addr.u.v4.s_addr;
serv.sin_port = htons(nserv->port);
addr = (struct sockaddr *) &serv;
addrlen = sizeof(serv);
sel_sock = sock;
break;
#ifdef CONFIG_IPV6
case AF_INET6:
os_memset(&serv6, 0, sizeof(serv6));
serv6.sin6_family = AF_INET6;
os_memcpy(&serv6.sin6_addr, &nserv->addr.u.v6,
sizeof(struct in6_addr));
serv6.sin6_port = htons(nserv->port);
addr = (struct sockaddr *) &serv6;
addrlen = sizeof(serv6);
sel_sock = sock6;
break;
#endif /* CONFIG_IPV6 */
default:
return -1;
}
if (sel_sock < 0) {
wpa_printf(MSG_INFO,
"RADIUS: No server socket available (af=%d sock=%d sock6=%d auth=%d",
nserv->addr.af, sock, sock6, auth);
return -1;
}
if (conf->force_client_addr) {
switch (conf->client_addr.af) {
case AF_INET:
os_memset(&claddr, 0, sizeof(claddr));
claddr.sin_family = AF_INET;
claddr.sin_addr.s_addr = conf->client_addr.u.v4.s_addr;
claddr.sin_port = htons(0);
cl_addr = (struct sockaddr *) &claddr;
claddrlen = sizeof(claddr);
break;
#ifdef CONFIG_IPV6
case AF_INET6:
os_memset(&claddr6, 0, sizeof(claddr6));
claddr6.sin6_family = AF_INET6;
os_memcpy(&claddr6.sin6_addr, &conf->client_addr.u.v6,
sizeof(struct in6_addr));
claddr6.sin6_port = htons(0);
cl_addr = (struct sockaddr *) &claddr6;
claddrlen = sizeof(claddr6);
break;
#endif /* CONFIG_IPV6 */
default:
return -1;
}
if (bind(sel_sock, cl_addr, claddrlen) < 0) {
wpa_printf(MSG_INFO, "bind[radius]: %s",
strerror(errno));
return -1;
}
}
/* Force a reconnect by disconnecting the socket first */
if (connect(sel_sock, (struct sockaddr *) &disconnect_addr,
sizeof(disconnect_addr)) < 0)
wpa_printf(MSG_INFO, "disconnect[radius]: %s", strerror(errno));
if (connect(sel_sock, addr, addrlen) < 0) {
wpa_printf(MSG_INFO, "connect[radius]: %s", strerror(errno));
return -1;
}
#ifndef CONFIG_NATIVE_WINDOWS
switch (nserv->addr.af) {
case AF_INET:
claddrlen = sizeof(claddr);
if (getsockname(sel_sock, (struct sockaddr *) &claddr,
&claddrlen) == 0) {
wpa_printf(MSG_DEBUG, "RADIUS local address: %s:%u",
inet_ntoa(claddr.sin_addr),
ntohs(claddr.sin_port));
}
break;
#ifdef CONFIG_IPV6
case AF_INET6: {
claddrlen = sizeof(claddr6);
if (getsockname(sel_sock, (struct sockaddr *) &claddr6,
&claddrlen) == 0) {
wpa_printf(MSG_DEBUG, "RADIUS local address: %s:%u",
inet_ntop(AF_INET6, &claddr6.sin6_addr,
abuf, sizeof(abuf)),
ntohs(claddr6.sin6_port));
}
break;
}
#endif /* CONFIG_IPV6 */
}
#endif /* CONFIG_NATIVE_WINDOWS */
if (auth)
radius->auth_sock = sel_sock;
else
radius->acct_sock = sel_sock;
return 0;
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *req_ies, size_t req_ies_len, int reassoc)
{
struct sta_info *sta;
int new_assoc, res;
struct ieee802_11_elems elems;
const u8 *ie;
size_t ielen;
#ifdef CONFIG_IEEE80211R
u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
u8 *p = buf;
#endif /* CONFIG_IEEE80211R */
u16 reason = WLAN_REASON_UNSPECIFIED;
u16 status = WLAN_STATUS_SUCCESS;
const u8 *p2p_dev_addr = NULL;
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up being set to station mode while hostapd was
* running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with "
"no address");
return -1;
}
random_add_randomness(addr, ETH_ALEN);
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
if (elems.wps_ie) {
ie = elems.wps_ie - 2;
ielen = elems.wps_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
} else if (elems.rsn_ie) {
ie = elems.rsn_ie - 2;
ielen = elems.rsn_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
} else if (elems.wpa_ie) {
ie = elems.wpa_ie - 2;
ielen = elems.wpa_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
} else {
ie = NULL;
ielen = 0;
wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in "
"(Re)AssocReq");
}
sta = ap_get_sta(hapd, addr);
if (sta) {
ap_sta_no_session_timeout(hapd, sta);
accounting_sta_stop(hapd, sta);
/*
* Make sure that the previously registered inactivity timer
* will not remove the STA immediately.
*/
sta->timeout_next = STA_NULLFUNC;
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL) {
hostapd_drv_sta_disassoc(hapd, addr,
WLAN_REASON_DISASSOC_AP_BUSY);
return -1;
}
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
#ifdef CONFIG_P2P
if (elems.p2p) {
wpabuf_free(sta->p2p_ie);
sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
P2P_IE_VENDOR_TYPE);
if (sta->p2p_ie)
p2p_dev_addr = p2p_get_go_dev_addr(sta->p2p_ie);
}
#endif /* CONFIG_P2P */
#ifdef CONFIG_INTERWORKING
if (elems.ext_capab && elems.ext_capab_len > 4) {
if (elems.ext_capab[4] & 0x01)
sta->qos_map_enabled = 1;
}
#endif /* CONFIG_INTERWORKING */
#ifdef CONFIG_HS20
wpabuf_free(sta->hs20_ie);
if (elems.hs20 && elems.hs20_len > 4) {
sta->hs20_ie = wpabuf_alloc_copy(elems.hs20 + 4,
elems.hs20_len - 4);
} else
sta->hs20_ie = NULL;
#endif /* CONFIG_HS20 */
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
#ifdef CONFIG_WPS
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG, "STA did not include "
"WPA/RSN IE in (Re)Association "
"Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
#ifdef CONFIG_WPS
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
struct wpabuf *wps;
sta->flags |= WLAN_STA_WPS;
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
if (wps) {
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA "
"supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
wpabuf_free(wps);
}
goto skip_wpa_check;
}
#endif /* CONFIG_WPS */
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr,
p2p_dev_addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen,
elems.mdie, elems.mdie_len);
if (res != WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "WPA/RSN information element "
"rejected? (res %u)", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
if (res == WPA_INVALID_GROUP) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_PAIRWISE) {
reason = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
status = WLAN_STATUS_PAIRWISE_CIPHER_NOT_VALID;
} else if (res == WPA_INVALID_AKMP) {
reason = WLAN_REASON_AKMP_NOT_VALID;
status = WLAN_STATUS_AKMP_NOT_VALID;
}
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
} else if (res == WPA_INVALID_MGMT_GROUP_CIPHER) {
reason = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
status = WLAN_STATUS_GROUP_CIPHER_NOT_VALID;
}
#endif /* CONFIG_IEEE80211W */
else {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
}
goto fail;
}
#ifdef CONFIG_IEEE80211W
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
sta->sa_query_count > 0)
ap_check_sa_query_timeout(hapd, sta);
if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
(sta->auth_alg != WLAN_AUTH_FT)) {
/*
* STA has already been associated with MFP and SA
* Query timeout has not been reached. Reject the
* association attempt temporarily and start SA Query,
* if one is not pending.
*/
if (sta->sa_query_count == 0)
ap_sta_start_sa_query(hapd, sta);
#ifdef CONFIG_IEEE80211R
status = WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
p = hostapd_eid_assoc_comeback_time(hapd, sta, p);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf,
p - buf);
#endif /* CONFIG_IEEE80211R */
return 0;
}
if (wpa_auth_uses_mfp(sta->wpa_sm))
sta->flags |= WLAN_STA_MFP;
else
sta->flags &= ~WLAN_STA_MFP;
#endif /* CONFIG_IEEE80211W */
#ifdef CONFIG_IEEE80211R
if (sta->auth_alg == WLAN_AUTH_FT) {
status = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
req_ies_len);
if (status != WLAN_STATUS_SUCCESS) {
if (status == WLAN_STATUS_INVALID_PMKID)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_MDIE)
reason = WLAN_REASON_INVALID_IE;
if (status == WLAN_STATUS_INVALID_FTIE)
reason = WLAN_REASON_INVALID_IE;
goto fail;
}
}
#endif /* CONFIG_IEEE80211R */
} else if (hapd->conf->wps_state) {
#ifdef CONFIG_WPS
struct wpabuf *wps;
if (req_ies)
wps = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
WPS_IE_VENDOR_TYPE);
else
wps = NULL;
#ifdef CONFIG_WPS_STRICT
if (wps && wps_validate_assoc_req(wps) < 0) {
reason = WLAN_REASON_INVALID_IE;
status = WLAN_STATUS_INVALID_IE;
wpabuf_free(wps);
goto fail;
}
#endif /* CONFIG_WPS_STRICT */
if (wps) {
sta->flags |= WLAN_STA_WPS;
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA supports "
"WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
wpabuf_free(wps);
#endif /* CONFIG_WPS */
}
#ifdef CONFIG_WPS
skip_wpa_check:
#endif /* CONFIG_WPS */
#ifdef CONFIG_IEEE80211R
p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
sta->auth_alg, req_ies, req_ies_len);
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
#else /* CONFIG_IEEE80211R */
/* Keep compiler silent about unused variables */
if (status) {
}
#endif /* CONFIG_IEEE80211R */
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
else
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
#ifdef CONFIG_P2P
if (req_ies) {
p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
req_ies, req_ies_len);
}
#endif /* CONFIG_P2P */
return 0;
fail:
#ifdef CONFIG_IEEE80211R
hostapd_sta_assoc(hapd, addr, reassoc, status, buf, p - buf);
#endif /* CONFIG_IEEE80211R */
hostapd_drv_sta_disassoc(hapd, sta->addr, reason);
ap_free_sta(hapd, sta);
return -1;
}
static void radius_client_timer(void *eloop_ctx, void *timeout_ctx)
{
struct radius_client_data *radius = eloop_ctx;
struct os_reltime now;
os_time_t first;
struct radius_msg_list *entry, *prev, *tmp;
int auth_failover = 0, acct_failover = 0;
size_t prev_num_msgs;
int s;
entry = radius->msgs;
if (!entry)
return;
os_get_reltime(&now);
first = 0;
prev = NULL;
while (entry) {
prev_num_msgs = radius->num_msgs;
if (now.sec >= entry->next_try &&
radius_client_retransmit(radius, entry, now.sec)) {
if (prev)
prev->next = entry->next;
else
radius->msgs = entry->next;
tmp = entry;
entry = entry->next;
radius_client_msg_free(tmp);
radius->num_msgs--;
continue;
}
if (prev_num_msgs != radius->num_msgs) {
wpa_printf(MSG_DEBUG,
"RADIUS: Message removed from queue - restart from beginning");
entry = radius->msgs;
prev = NULL;
continue;
}
s = entry->msg_type == RADIUS_AUTH ? radius->auth_sock :
radius->acct_sock;
if (entry->attempts > RADIUS_CLIENT_NUM_FAILOVER ||
(s < 0 && entry->attempts > 0)) {
if (entry->msg_type == RADIUS_ACCT ||
entry->msg_type == RADIUS_ACCT_INTERIM)
acct_failover++;
else
auth_failover++;
}
if (first == 0 || entry->next_try < first)
first = entry->next_try;
prev = entry;
entry = entry->next;
}
if (radius->msgs) {
if (first < now.sec)
first = now.sec;
eloop_register_timeout(first - now.sec, 0,
radius_client_timer, radius, NULL);
hostapd_logger(radius->ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_DEBUG, "Next RADIUS client "
"retransmit in %ld seconds",
(long int) (first - now.sec));
}
if (auth_failover)
radius_client_auth_failover(radius);
if (acct_failover)
radius_client_acct_failover(radius);
}
void hostapd_acs_channel_selected(struct hostapd_data *hapd,
struct acs_selected_channels *acs_res)
{
int ret, i;
int err = 0;
if (hapd->iconf->channel) {
wpa_printf(MSG_INFO, "ACS: Channel was already set to %d",
hapd->iconf->channel);
return;
}
if (!hapd->iface->current_mode) {
for (i = 0; i < hapd->iface->num_hw_features; i++) {
struct hostapd_hw_modes *mode =
&hapd->iface->hw_features[i];
if (mode->mode == acs_res->hw_mode) {
hapd->iface->current_mode = mode;
break;
}
}
if (!hapd->iface->current_mode) {
hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"driver selected to bad hw_mode");
err = 1;
goto out;
}
}
hapd->iface->freq = hostapd_hw_get_freq(hapd, acs_res->pri_channel);
if (!acs_res->pri_channel) {
hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING,
"driver switched to bad channel");
err = 1;
goto out;
}
hapd->iconf->channel = acs_res->pri_channel;
hapd->iconf->acs = 1;
if (acs_res->sec_channel == 0)
hapd->iconf->secondary_channel = 0;
else if (acs_res->sec_channel < acs_res->pri_channel)
hapd->iconf->secondary_channel = -1;
else if (acs_res->sec_channel > acs_res->pri_channel)
hapd->iconf->secondary_channel = 1;
else {
wpa_printf(MSG_ERROR, "Invalid secondary channel!");
err = 1;
goto out;
}
if (hapd->iface->conf->ieee80211ac) {
/* set defaults for backwards compatibility */
hapd->iconf->vht_oper_centr_freq_seg1_idx = 0;
hapd->iconf->vht_oper_centr_freq_seg0_idx = 0;
hapd->iconf->vht_oper_chwidth = VHT_CHANWIDTH_USE_HT;
if (acs_res->ch_width == 80) {
hapd->iconf->vht_oper_centr_freq_seg0_idx =
acs_res->vht_seg0_center_ch;
hapd->iconf->vht_oper_chwidth = VHT_CHANWIDTH_80MHZ;
} else if (acs_res->ch_width == 160) {
if (acs_res->vht_seg1_center_ch == 0) {
hapd->iconf->vht_oper_centr_freq_seg0_idx =
acs_res->vht_seg0_center_ch;
hapd->iconf->vht_oper_chwidth =
VHT_CHANWIDTH_160MHZ;
} else {
hapd->iconf->vht_oper_centr_freq_seg0_idx =
acs_res->vht_seg0_center_ch;
hapd->iconf->vht_oper_centr_freq_seg1_idx =
acs_res->vht_seg1_center_ch;
hapd->iconf->vht_oper_chwidth =
VHT_CHANWIDTH_80P80MHZ;
}
}
}
out:
ret = hostapd_acs_completed(hapd->iface, err);
if (ret) {
wpa_printf(MSG_ERROR,
"ACS: Possibly channel configuration is invalid");
}
}
static void radius_client_receive(int sock, void *eloop_ctx, void *sock_ctx)
{
struct radius_client_data *radius = eloop_ctx;
struct hostapd_radius_servers *conf = radius->conf;
RadiusType msg_type = (RadiusType) sock_ctx;
int len, roundtrip;
unsigned char buf[3000];
struct radius_msg *msg;
struct radius_hdr *hdr;
struct radius_rx_handler *handlers;
size_t num_handlers, i;
struct radius_msg_list *req, *prev_req;
struct os_reltime now;
struct hostapd_radius_server *rconf;
int invalid_authenticator = 0;
if (msg_type == RADIUS_ACCT) {
handlers = radius->acct_handlers;
num_handlers = radius->num_acct_handlers;
rconf = conf->acct_server;
} else {
handlers = radius->auth_handlers;
num_handlers = radius->num_auth_handlers;
rconf = conf->auth_server;
}
len = recv(sock, buf, sizeof(buf), MSG_DONTWAIT);
if (len < 0) {
wpa_printf(MSG_INFO, "recv[RADIUS]: %s", strerror(errno));
return;
}
hostapd_logger(radius->ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_DEBUG, "Received %d bytes from RADIUS "
"server", len);
if (len == sizeof(buf)) {
wpa_printf(MSG_INFO, "RADIUS: Possibly too long UDP frame for our buffer - dropping it");
return;
}
msg = radius_msg_parse(buf, len);
if (msg == NULL) {
wpa_printf(MSG_INFO, "RADIUS: Parsing incoming frame failed");
rconf->malformed_responses++;
return;
}
hdr = radius_msg_get_hdr(msg);
hostapd_logger(radius->ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_DEBUG, "Received RADIUS message");
if (conf->msg_dumps)
radius_msg_dump(msg);
switch (hdr->code) {
case RADIUS_CODE_ACCESS_ACCEPT:
rconf->access_accepts++;
break;
case RADIUS_CODE_ACCESS_REJECT:
rconf->access_rejects++;
break;
case RADIUS_CODE_ACCESS_CHALLENGE:
rconf->access_challenges++;
break;
case RADIUS_CODE_ACCOUNTING_RESPONSE:
rconf->responses++;
break;
}
prev_req = NULL;
req = radius->msgs;
while (req) {
/* TODO: also match by src addr:port of the packet when using
* alternative RADIUS servers (?) */
if ((req->msg_type == msg_type ||
(req->msg_type == RADIUS_ACCT_INTERIM &&
msg_type == RADIUS_ACCT)) &&
radius_msg_get_hdr(req->msg)->identifier ==
hdr->identifier)
break;
prev_req = req;
req = req->next;
}
if (req == NULL) {
hostapd_logger(radius->ctx, NULL, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_DEBUG,
"No matching RADIUS request found (type=%d "
"id=%d) - dropping packet",
msg_type, hdr->identifier);
goto fail;
}
os_get_reltime(&now);
roundtrip = (now.sec - req->last_attempt.sec) * 100 +
(now.usec - req->last_attempt.usec) / 10000;
hostapd_logger(radius->ctx, req->addr, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_DEBUG,
"Received RADIUS packet matched with a pending "
"request, round trip time %d.%02d sec",
roundtrip / 100, roundtrip % 100);
rconf->round_trip_time = roundtrip;
/* Remove ACKed RADIUS packet from retransmit list */
if (prev_req)
prev_req->next = req->next;
else
radius->msgs = req->next;
radius->num_msgs--;
for (i = 0; i < num_handlers; i++) {
RadiusRxResult res;
res = handlers[i].handler(msg, req->msg, req->shared_secret,
req->shared_secret_len,
handlers[i].data);
switch (res) {
case RADIUS_RX_PROCESSED:
radius_msg_free(msg);
/* continue */
case RADIUS_RX_QUEUED:
radius_client_msg_free(req);
return;
case RADIUS_RX_INVALID_AUTHENTICATOR:
invalid_authenticator++;
/* continue */
case RADIUS_RX_UNKNOWN:
/* continue with next handler */
break;
}
}
if (invalid_authenticator)
rconf->bad_authenticators++;
else
rconf->unknown_types++;
hostapd_logger(radius->ctx, req->addr, HOSTAPD_MODULE_RADIUS,
HOSTAPD_LEVEL_DEBUG, "No RADIUS RX handler found "
"(type=%d code=%d id=%d)%s - dropping packet",
msg_type, hdr->code, hdr->identifier,
invalid_authenticator ? " [INVALID AUTHENTICATOR]" :
"");
radius_client_msg_free(req);
fail:
radius_msg_free(msg);
}
/**
* ap_handle_timer - Per STA timer handler
* @eloop_ctx: struct hostapd_data *
* @timeout_ctx: struct sta_info *
*
* This function is called to check station activity and to remove inactive
* stations.
*/
void ap_handle_timer(void *eloop_ctx, void *timeout_ctx)
{
struct hostapd_data *hapd = eloop_ctx;
struct sta_info *sta = timeout_ctx;
unsigned long next_time = 0;
if (sta->timeout_next == STA_REMOVE) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"local deauth request");
ap_free_sta(hapd, sta);
return;
}
if ((sta->flags & WLAN_STA_ASSOC) &&
(sta->timeout_next == STA_NULLFUNC ||
sta->timeout_next == STA_DISASSOC)) {
int inactive_sec;
inactive_sec = hostapd_drv_get_inact_sec(hapd, sta->addr);
if (inactive_sec == -1) {
wpa_msg(hapd, MSG_DEBUG, "Check inactivity: Could not "
"get station info rom kernel driver for "
MACSTR, MAC2STR(sta->addr));
} else if (inactive_sec < hapd->conf->ap_max_inactivity &&
sta->flags & WLAN_STA_ASSOC) {
/* station activity detected; reset timeout state */
wpa_msg(hapd, MSG_DEBUG, "Station " MACSTR " has been "
"active %is ago",
MAC2STR(sta->addr), inactive_sec);
sta->timeout_next = STA_NULLFUNC;
next_time = hapd->conf->ap_max_inactivity -
inactive_sec;
} else {
wpa_msg(hapd, MSG_DEBUG, "Station " MACSTR " has been "
"inactive too long: %d sec, max allowed: %d",
MAC2STR(sta->addr), inactive_sec,
hapd->conf->ap_max_inactivity);
}
}
if ((sta->flags & WLAN_STA_ASSOC) &&
sta->timeout_next == STA_DISASSOC &&
!(sta->flags & WLAN_STA_PENDING_POLL)) {
wpa_msg(hapd, MSG_DEBUG, "Station " MACSTR " has ACKed data "
"poll", MAC2STR(sta->addr));
/* data nullfunc frame poll did not produce TX errors; assume
* station ACKed it */
sta->timeout_next = STA_NULLFUNC;
next_time = hapd->conf->ap_max_inactivity;
}
if (next_time) {
eloop_register_timeout(next_time, 0, ap_handle_timer, hapd,
sta);
return;
}
if (sta->timeout_next == STA_NULLFUNC &&
(sta->flags & WLAN_STA_ASSOC)) {
#ifndef CONFIG_NATIVE_WINDOWS
/* send data frame to poll STA and check whether this frame
* is ACKed */
struct {
struct ieee80211_hdr hdr;
u16 qos_ctl;
} STRUCT_PACKED nulldata;
int size = sizeof(struct ieee80211_hdr);
wpa_printf(MSG_DEBUG, " Polling STA with data frame");
sta->flags |= WLAN_STA_PENDING_POLL;
os_memset(&nulldata, 0, sizeof(nulldata));
if (hapd->driver &&
os_strcmp(hapd->driver->name, "hostap") == 0) {
/*
* WLAN_FC_STYPE_NULLFUNC would be more appropriate,
* but it is apparently not retried so TX Exc events
* are not received for it.
*/
nulldata.hdr.frame_control =
IEEE80211_FC(WLAN_FC_TYPE_DATA,
WLAN_FC_STYPE_DATA);
} else {
if (sta->flags & WLAN_STA_WMM) {
nulldata.hdr.frame_control =
IEEE80211_FC(WLAN_FC_TYPE_DATA,
WLAN_FC_STYPE_QOS_NULL);
size = sizeof(nulldata);
} else
nulldata.hdr.frame_control =
IEEE80211_FC(WLAN_FC_TYPE_DATA,
WLAN_FC_STYPE_NULLFUNC);
}
nulldata.hdr.frame_control |= host_to_le16(WLAN_FC_FROMDS);
os_memcpy(nulldata.hdr.IEEE80211_DA_FROMDS, sta->addr,
ETH_ALEN);
os_memcpy(nulldata.hdr.IEEE80211_BSSID_FROMDS, hapd->own_addr,
ETH_ALEN);
os_memcpy(nulldata.hdr.IEEE80211_SA_FROMDS, hapd->own_addr,
ETH_ALEN);
if (hostapd_drv_send_mlme(hapd, &nulldata, size) < 0)
perror("ap_handle_timer: send");
#endif /* CONFIG_NATIVE_WINDOWS */
} else if (sta->timeout_next != STA_REMOVE) {
int deauth = sta->timeout_next == STA_DEAUTH;
wpa_printf(MSG_DEBUG, "Sending %s info to STA " MACSTR,
deauth ? "deauthentication" : "disassociation",
MAC2STR(sta->addr));
if (deauth) {
hostapd_drv_sta_deauth(
hapd, sta->addr,
WLAN_REASON_PREV_AUTH_NOT_VALID);
} else {
hostapd_drv_sta_disassoc(
hapd, sta->addr,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
}
}
switch (sta->timeout_next) {
case STA_NULLFUNC:
sta->timeout_next = STA_DISASSOC;
eloop_register_timeout(AP_DISASSOC_DELAY, 0, ap_handle_timer,
hapd, sta);
break;
case STA_DISASSOC:
sta->flags &= ~WLAN_STA_ASSOC;
ieee802_1x_notify_port_enabled(sta->eapol_sm, 0);
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
accounting_sta_stop(hapd, sta);
ieee802_1x_free_station(sta);
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "disassociated due to "
"inactivity");
sta->timeout_next = STA_DEAUTH;
eloop_register_timeout(AP_DEAUTH_DELAY, 0, ap_handle_timer,
hapd, sta);
mlme_disassociate_indication(
hapd, sta, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
break;
case STA_DEAUTH:
case STA_REMOVE:
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "deauthenticated due to "
"inactivity");
if (!sta->acct_terminate_cause)
sta->acct_terminate_cause =
RADIUS_ACCT_TERMINATE_CAUSE_IDLE_TIMEOUT;
mlme_deauthenticate_indication(
hapd, sta,
WLAN_REASON_PREV_AUTH_NOT_VALID);
ap_free_sta(hapd, sta);
break;
}
}
int hostapd_get_hw_features(struct hostapd_iface *iface)
{
struct hostapd_data *hapd = iface->bss[0];
int i, j;
u16 num_modes, flags;
struct hostapd_hw_modes *modes;
if (hostapd_drv_none(hapd))
return -1;
modes = hostapd_get_hw_feature_data(hapd, &num_modes, &flags);
if (modes == NULL) {
hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"Fetching hardware channel/rate support not "
"supported.");
return -1;
}
iface->hw_flags = flags;
hostapd_free_hw_features(iface->hw_features, iface->num_hw_features);
iface->hw_features = modes;
iface->num_hw_features = num_modes;
for (i = 0; i < num_modes; i++) {
struct hostapd_hw_modes *feature = &modes[i];
int dfs_enabled = hapd->iconf->ieee80211h &&
(iface->drv_flags & WPA_DRIVER_FLAGS_RADAR);
/* set flag for channels we can use in current regulatory
* domain */
for (j = 0; j < feature->num_channels; j++) {
int dfs = 0;
/*
* Disable all channels that are marked not to allow
* to initiate radiation (a.k.a. passive scan and no
* IBSS).
* Use radar channels only if the driver supports DFS.
*/
if ((feature->channels[j].flag &
HOSTAPD_CHAN_RADAR) && dfs_enabled) {
dfs = 1;
} else if (((feature->channels[j].flag &
HOSTAPD_CHAN_RADAR) &&
!(iface->drv_flags &
WPA_DRIVER_FLAGS_DFS_OFFLOAD)) ||
(feature->channels[j].flag &
HOSTAPD_CHAN_NO_IR)) {
feature->channels[j].flag |=
HOSTAPD_CHAN_DISABLED;
}
if (feature->channels[j].flag & HOSTAPD_CHAN_DISABLED)
continue;
wpa_printf(MSG_MSGDUMP, "Allowed channel: mode=%d "
"chan=%d freq=%d MHz max_tx_power=%d dBm%s",
feature->mode,
feature->channels[j].chan,
feature->channels[j].freq,
feature->channels[j].max_tx_power,
dfs ? dfs_info(&feature->channels[j]) : "");
}
}
return 0;
}
static int test_driver_new_sta(struct test_driver_data *drv,
struct test_driver_bss *bss, const u8 *addr,
const u8 *ie, size_t ielen)
{
struct hostapd_data *hapd;
struct sta_info *sta;
int new_assoc, res;
hapd = test_driver_get_hapd(drv, bss);
if (hapd == NULL)
return -1;
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
sta = ap_get_sta(hapd, addr);
if (sta) {
accounting_sta_stop(hapd, sta);
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL)
return -1;
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS);
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
if (hapd->conf->wps_state) {
sta->flags |= WLAN_STA_WPS;
goto skip_wpa_check;
}
printf("test_driver: no IE from STA\n");
return -1;
}
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
sta->flags |= WLAN_STA_WPS;
goto skip_wpa_check;
}
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
printf("test_driver: Failed to initialize WPA state "
"machine\n");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen, NULL, 0);
if (res != WPA_IE_OK) {
printf("WPA/RSN information element rejected? "
"(res %u)\n", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
return -1;
}
}
skip_wpa_check:
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
return 0;
}
void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
int offset, int width, int cf1, int cf2)
{
#ifdef NEED_AP_MLME
int channel, chwidth, seg0_idx = 0, seg1_idx = 0;
hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "driver had channel switch: "
"freq=%d, ht=%d, offset=%d, width=%d, cf1=%d, cf2=%d",
freq, ht, offset, width, cf1, cf2);
hapd->iface->freq = freq;
channel = hostapd_hw_get_channel(hapd, freq);
if (!channel) {
hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_WARNING, "driver switched to "
"bad channel!");
return;
}
switch (width) {
case CHAN_WIDTH_80:
chwidth = VHT_CHANWIDTH_80MHZ;
break;
case CHAN_WIDTH_80P80:
chwidth = VHT_CHANWIDTH_80P80MHZ;
break;
case CHAN_WIDTH_160:
chwidth = VHT_CHANWIDTH_160MHZ;
break;
case CHAN_WIDTH_20_NOHT:
case CHAN_WIDTH_20:
case CHAN_WIDTH_40:
default:
chwidth = VHT_CHANWIDTH_USE_HT;
break;
}
switch (hapd->iface->current_mode->mode) {
case HOSTAPD_MODE_IEEE80211A:
if (cf1 > 5000)
seg0_idx = (cf1 - 5000) / 5;
if (cf2 > 5000)
seg1_idx = (cf2 - 5000) / 5;
break;
default:
seg0_idx = hostapd_hw_get_channel(hapd, cf1);
seg1_idx = hostapd_hw_get_channel(hapd, cf2);
break;
}
hapd->iconf->channel = channel;
hapd->iconf->ieee80211n = ht;
hapd->iconf->secondary_channel = offset;
hapd->iconf->vht_oper_chwidth = chwidth;
hapd->iconf->vht_oper_centr_freq_seg0_idx = seg0_idx;
hapd->iconf->vht_oper_centr_freq_seg1_idx = seg1_idx;
if (hapd->csa_in_progress &&
freq == hapd->cs_freq_params.freq) {
hostapd_cleanup_cs_params(hapd);
ieee802_11_set_beacon(hapd);
wpa_msg(hapd->msg_ctx, MSG_INFO, AP_CSA_FINISHED "freq=%d",
freq);
}
#endif /* NEED_AP_MLME */
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *req_ies, size_t req_ies_len, int reassoc)
{
struct sta_info *sta;
int new_assoc, res;
struct ieee802_11_elems elems;
const u8 *ie;
size_t ielen;
#ifdef CONFIG_IEEE80211R
u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
u8 *p = buf;
size_t len = 0;
#endif /* CONFIG_IEEE80211R */
int resp = WLAN_STATUS_SUCCESS;
if (addr == NULL) {
/*
* This could potentially happen with unexpected event from the
* driver wrapper. This was seen at least in one case where the
* driver ended up being set to station mode while hostapd was
* running, so better make sure we stop processing such an
* event here.
*/
wpa_printf(MSG_DEBUG, "hostapd_notif_assoc: Skip event with "
"no address");
return -1;
}
random_add_randomness(addr, ETH_ALEN);
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
ieee802_11_parse_elems(req_ies, req_ies_len, &elems, 0);
if (elems.wps_ie) {
ie = elems.wps_ie - 2;
ielen = elems.wps_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)AssocReq");
} else if (elems.rsn_ie) {
ie = elems.rsn_ie - 2;
ielen = elems.rsn_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included RSN IE in (Re)AssocReq");
} else if (elems.wpa_ie) {
ie = elems.wpa_ie - 2;
ielen = elems.wpa_ie_len + 2;
wpa_printf(MSG_DEBUG, "STA included WPA IE in (Re)AssocReq");
} else {
ie = NULL;
ielen = 0;
wpa_printf(MSG_DEBUG, "STA did not include WPS/RSN/WPA IE in "
"(Re)AssocReq");
}
sta = ap_get_sta(hapd, addr);
if (sta) {
accounting_sta_stop(hapd, sta);
} else {
sta = ap_sta_add(hapd, addr);
if (sta == NULL)
return -1;
}
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS | WLAN_STA_WPS2);
#ifdef CONFIG_P2P
if (elems.p2p) {
wpabuf_free(sta->p2p_ie);
sta->p2p_ie = ieee802_11_vendor_ie_concat(req_ies, req_ies_len,
P2P_IE_VENDOR_TYPE);
}
#endif /* CONFIG_P2P */
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
if (hapd->conf->wps_state) {
wpa_printf(MSG_DEBUG, "STA did not include "
"WPA/RSN IE in (Re)Association "
"Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
goto skip_wpa_check;
}
wpa_printf(MSG_DEBUG, "No WPA/RSN IE from STA");
return -1;
}
if (hapd->conf->wps_state && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
struct wpabuf *wps;
sta->flags |= WLAN_STA_WPS;
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
if (wps) {
if (wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA "
"supports WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
wpabuf_free(wps);
}
goto skip_wpa_check;
}
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
wpa_printf(MSG_ERROR, "Failed to initialize WPA state "
"machine");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie, ielen,
elems.mdie, elems.mdie_len);
if (res != WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "WPA/RSN information element "
"rejected? (res %u)", res);
wpa_hexdump(MSG_DEBUG, "IE", ie, ielen);
if (res == WPA_INVALID_GROUP)
resp = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
else if (res == WPA_INVALID_PAIRWISE)
resp = WLAN_REASON_PAIRWISE_CIPHER_NOT_VALID;
else if (res == WPA_INVALID_AKMP)
resp = WLAN_REASON_AKMP_NOT_VALID;
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION)
resp = WLAN_REASON_INVALID_IE;
else if (res == WPA_INVALID_MGMT_GROUP_CIPHER)
resp = WLAN_REASON_GROUP_CIPHER_NOT_VALID;
#endif /* CONFIG_IEEE80211W */
else
resp = WLAN_REASON_INVALID_IE;
goto fail;
}
#ifdef CONFIG_IEEE80211R
if (sta->auth_alg == WLAN_AUTH_FT) {
resp = wpa_ft_validate_reassoc(sta->wpa_sm, req_ies,
req_ies_len);
if (resp != WLAN_STATUS_SUCCESS)
goto fail;
}
#endif /* CONFIG_IEEE80211R */
} else if (hapd->conf->wps_state) {
struct wpabuf *wps;
wps = ieee802_11_vendor_ie_concat(ie, ielen,
WPS_IE_VENDOR_TYPE);
#ifdef CONFIG_WPS_STRICT
if (ie) {
if (wps && wps_validate_assoc_req(wps) < 0) {
resp = WLAN_REASON_INVALID_IE;
wpabuf_free(wps);
goto fail;
}
}
#endif /* CONFIG_WPS_STRICT */
if (ie && ielen > 4 && ie[0] == 0xdd && ie[1] >= 4 &&
os_memcmp(ie + 2, "\x00\x50\xf2\x04", 4) == 0) {
sta->flags |= WLAN_STA_WPS;
if (wps && wps_is_20(wps)) {
wpa_printf(MSG_DEBUG, "WPS: STA supports "
"WPS 2.0");
sta->flags |= WLAN_STA_WPS2;
}
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
wpabuf_free(wps);
}
skip_wpa_check:
#ifdef CONFIG_IEEE80211R
p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, buf, sizeof(buf),
sta->auth_alg, req_ies, req_ies_len);
len = p - buf;
hostapd_sta_assoc(hapd, addr, reassoc, 0, buf, len);
#endif /* CONFIG_IEEE80211R */
new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);
else
wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
hostapd_new_assoc_sta(hapd, sta, !new_assoc);
ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
#ifdef CONFIG_P2P
p2p_group_notif_assoc(hapd->p2p_group, sta->addr,
req_ies, req_ies_len);
#endif /* CONFIG_P2P */
return 0;
fail:
#ifdef CONFIG_IEEE80211R
hostapd_sta_assoc(hapd, addr, reassoc, resp, buf, len);
#endif /* CONFIG_IEEE80211R */
hostapd_drv_sta_disassoc(hapd, sta->addr, resp);
ap_free_sta(hapd, sta);
return -1;
}
