static int ibss_rsn_auth_init(struct ibss_rsn *ibss_rsn,
struct ibss_rsn_peer *peer)
{
peer->auth = wpa_auth_sta_init(ibss_rsn->auth_group, peer->addr);
if (peer->auth == NULL) {
wpa_printf(MSG_DEBUG, "AUTH: wpa_auth_sta_init() failed");
return -1;
}
/* TODO: get peer RSN IE with Probe Request */
if (wpa_validate_wpa_ie(ibss_rsn->auth_group, peer->auth,
(u8 *) "\x30\x14\x01\x00"
"\x00\x0f\xac\x04"
"\x01\x00\x00\x0f\xac\x04"
"\x01\x00\x00\x0f\xac\x02"
"\x00\x00", 22, NULL, 0) !=
WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "AUTH: wpa_validate_wpa_ie() failed");
return -1;
}
if (wpa_auth_sm_event(peer->auth, WPA_ASSOC))
return -1;
if (wpa_auth_sta_associated(ibss_rsn->auth_group, peer->auth))
return -1;
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_bss_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;
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth,
sta->addr);
if (sta->wpa_sm == NULL) {
printf("Failed to initialize WPA state machine\n");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
ie.wpa_ie, ielen, NULL, 0);
if (res != WPA_IE_OK) {
printf("WPA/RSN information element rejected? "
"(res %u)\n", res);
return -1;
}
}
/*
* 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_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;
}
static int
madwifi_process_wpa_ie(struct madwifi_driver_data *drv, struct sta_info *sta)
{
struct hostapd_data *hapd = drv->hapd;
struct ieee80211req_wpaie ie;
int ielen, res;
u8 *iebuf;
/*
* Fetch negotiated WPA/RSN parameters from the system.
*/
memset(&ie, 0, sizeof(ie));
memcpy(ie.wpa_macaddr, sta->addr, IEEE80211_ADDR_LEN);
if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
wpa_printf(MSG_ERROR, "%s: Failed to get WPA/RSN IE",
__func__);
printf("Failed to get WPA/RSN information element.\n");
return -1; /* XXX not right */
}
wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
ie.wpa_ie, IEEE80211_MAX_OPT_IE);
wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
ie.rsn_ie, IEEE80211_MAX_OPT_IE);
iebuf = ie.wpa_ie;
/* madwifi seems to return some random data if WPA/RSN IE is not set.
* Assume the IE was not included if the IE type is unknown. */
if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
iebuf[1] = 0;
#ifdef MADWIFI_NG
if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
/* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
* set. This is needed for WPA2. */
iebuf = ie.rsn_ie;
if (iebuf[0] != WLAN_EID_RSN)
iebuf[1] = 0;
}
#endif /* MADWIFI_NG */
ielen = iebuf[1];
if (ielen == 0) {
printf("No WPA/RSN information element for station!?\n");
return -1; /* XXX not right */
}
ielen += 2;
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
if (sta->wpa_sm == NULL) {
printf("Failed to initialize WPA state machine\n");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
iebuf, ielen, NULL, 0);
if (res != WPA_IE_OK) {
printf("WPA/RSN information element rejected? (res %u)\n", res);
return -1;
}
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;
}
accounting_sta_get_id(hapd, sta);
if (hapd->conf->wpa) {
if (ie == NULL || ielen == 0) {
printf("test_driver: no IE from STA\n");
return -1;
}
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);
if (res != WPA_IE_OK) {
printf("WPA/RSN information element rejected? "
"(res %u)\n", res);
return -1;
}
}
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;
}
static int
wext_process_wpa_ie(struct wext_driver_data *drv, struct sta_info *sta)
{
#define WEXT_WPA_IE_LEN 6 + 256
struct hostapd_data *hapd = drv->hapd;
struct iwreq iwr;
int ielen, res;
static u8 iebuf[WEXT_WPA_IE_LEN];
wpa_printf(MSG_DEBUG,
"%s: addr=%s\n", __func__, ether_sprintf(sta->addr));
memset(&iwr, 0, sizeof(iwr));
memset(&iebuf, 0, sizeof(iebuf));
strncpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
iwr.u.encoding.pointer = (caddr_t)iebuf;
iwr.u.encoding.length = WEXT_WPA_IE_LEN;
/**
* Some king of hack here:
* I set WPA flag, so driver will check iebuf for sta mac address
* and will return this station WPA IE
* Will work with UBNT atheros driver
**/
iwr.u.encoding.flags = IW_AUTH_WPA_ENABLED;
memcpy(iebuf, sta->addr, ETH_ALEN);
if (ioctl(drv->ioctl_sock, SIOCGIWGENIE, &iwr) < 0) {
perror("ioctl[SIOCGIWGENIE]");
return -1;
}
ielen = iebuf[1];
if (ielen == 0) {
printf("No WPA/RSN information element for station!?\n");
return -1; /* XXX not right */
}
ielen += 2;
if (sta->wpa_sm == NULL)
sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
if (sta->wpa_sm == NULL) {
printf("Failed to initialize WPA state machine\n");
return -1;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
iebuf, ielen, NULL, 0);
if (res != WPA_IE_OK) {
printf("WPA/RSN information element rejected? (res %u)\n", res);
return -1;
}
#undef WEXT_WPA_IE_LEN
return 0;
}
static int auth_init(struct wpa *wpa)
{
wpa->auth = wpa_auth_sta_init(wpa->auth_group, wpa->supp_addr, NULL);
if (wpa->auth == NULL) {
wpa_printf(MSG_DEBUG, "AUTH: wpa_auth_sta_init() failed");
return -1;
}
if (wpa_validate_wpa_ie(wpa->auth_group, wpa->auth, wpa->supp_ie,
wpa->supp_ie_len, NULL, 0) != WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "AUTH: wpa_validate_wpa_ie() failed");
return -1;
}
wpa_auth_sm_event(wpa->auth, WPA_ASSOC);
wpa_auth_sta_associated(wpa->auth_group, wpa->auth);
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;
}
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;
}
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;
}
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;
}
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 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");
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *ie, size_t ielen)
{
struct sta_info *sta;
int new_assoc, res;
struct ieee802_11_elems elems;
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;
}
hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "associated");
ieee802_11_parse_elems(ie, ielen, &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);
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) {
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) {
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, NULL, 0);
if (res != WPA_IE_OK) {
int resp;
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;
hapd->drv.sta_disassoc(hapd, sta->addr, resp);
ap_free_sta(hapd, sta);
return -1;
}
} else if (hapd->conf->wps_state) {
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;
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
}
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;
}
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *ie, size_t ielen)
{
struct sta_info *sta;
int new_assoc, res;
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) {
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) {
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) {
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, NULL, 0);
if (res != WPA_IE_OK) {
int resp;
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;
hapd->drv.sta_disassoc(hapd, sta->addr, resp);
ap_free_sta(hapd, sta);
return -1;
}
} else if (hapd->conf->wps_state) {
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;
} else
sta->flags |= WLAN_STA_MAYBE_WPS;
}
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;
}
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;
#if defined(CONFIG_IEEE80211R) || defined(CONFIG_IEEE80211W)
u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
u8 *p = buf;
#endif /* CONFIG_IEEE80211R || CONFIG_IEEE80211W */
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);
/*
* ACL configurations to the drivers (implementing AP SME and ACL
* offload) without hostapd's knowledge, can result in a disconnection
* though the driver accepts the connection. Skip the hostapd check for
* ACL if the driver supports ACL offload to avoid potentially
* conflicting ACL rules.
*/
if (hapd->iface->drv_max_acl_mac_addrs == 0 &&
hostapd_check_acl(hapd, addr, NULL) != HOSTAPD_ACL_ACCEPT) {
wpa_printf(MSG_INFO, "STA " MACSTR " not allowed to connect",
MAC2STR(addr));
reason = WLAN_REASON_UNSPECIFIED;
goto fail;
}
#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 &&
(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_FST
wpabuf_free(sta->mb_ies);
if (hapd->iface->fst)
sta->mb_ies = mb_ies_by_info(&elems.mb_ies);
else
sta->mb_ies = NULL;
#endif /* CONFIG_FST */
mbo_ap_check_sta_assoc(hapd, sta, &elems);
ap_copy_sta_supp_op_classes(sta, elems.supp_op_classes,
elems.supp_op_classes_len);
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);
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);
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_MBO
if (hapd->conf->mbo_enabled && (hapd->conf->wpa & 2) &&
elems.mbo && sta->cell_capa && !(sta->flags & WLAN_STA_MFP) &&
hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
wpa_printf(MSG_INFO,
"MBO: Reject WPA2 association without PMF");
return WLAN_STATUS_UNSPECIFIED_FAILURE;
}
#endif /* CONFIG_MBO */
#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);
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 u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta,
const u8 *ies, size_t ies_len, int reassoc)
{
struct ieee802_11_elems elems;
u16 resp;
const u8 *wpa_ie;
size_t wpa_ie_len;
if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) == ParseFailed) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO, "Station sent an invalid "
"association request");
return WLAN_STATUS_UNSPECIFIED_FAILURE;
}
resp = check_ssid(hapd, sta, elems.ssid, elems.ssid_len);
if (resp != WLAN_STATUS_SUCCESS)
return resp;
resp = check_wmm(hapd, sta, elems.wmm, elems.wmm_len);
if (resp != WLAN_STATUS_SUCCESS)
return resp;
resp = copy_supp_rates(hapd, sta, &elems);
if (resp != WLAN_STATUS_SUCCESS)
return resp;
#ifdef CONFIG_IEEE80211N
resp = copy_sta_ht_capab(sta, elems.ht_capabilities,
elems.ht_capabilities_len);
if (resp != WLAN_STATUS_SUCCESS)
return resp;
#endif /* CONFIG_IEEE80211N */
if ((hapd->conf->wpa & WPA_PROTO_RSN) && elems.rsn_ie) {
wpa_ie = elems.rsn_ie;
wpa_ie_len = elems.rsn_ie_len;
} else if ((hapd->conf->wpa & WPA_PROTO_WPA) &&
elems.wpa_ie) {
wpa_ie = elems.wpa_ie;
wpa_ie_len = elems.wpa_ie_len;
} else {
wpa_ie = NULL;
wpa_ie_len = 0;
}
#ifdef CONFIG_WPS
sta->flags &= ~(WLAN_STA_WPS | WLAN_STA_MAYBE_WPS);
if (hapd->conf->wps_state && elems.wps_ie) {
wpa_printf(MSG_DEBUG, "STA included WPS IE in (Re)Association "
"Request - assume WPS is used");
sta->flags |= WLAN_STA_WPS;
wpabuf_free(sta->wps_ie);
sta->wps_ie = ieee802_11_vendor_ie_concat(ies, ies_len,
WPS_IE_VENDOR_TYPE);
wpa_ie = NULL;
wpa_ie_len = 0;
} else if (hapd->conf->wps_state && wpa_ie == NULL) {
wpa_printf(MSG_DEBUG, "STA did not include WPA/RSN IE in "
"(Re)Association Request - possible WPS use");
sta->flags |= WLAN_STA_MAYBE_WPS;
} else
#endif /* CONFIG_WPS */
if (hapd->conf->wpa && wpa_ie == NULL) {
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO,
"No WPA/RSN IE in association request");
return WLAN_STATUS_INVALID_IE;
}
if (hapd->conf->wpa && wpa_ie) {
int res;
wpa_ie -= 2;
wpa_ie_len += 2;
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_WARNING, "Failed to initialize WPA "
"state machine");
return WLAN_STATUS_UNSPECIFIED_FAILURE;
}
res = wpa_validate_wpa_ie(hapd->wpa_auth, sta->wpa_sm,
wpa_ie, wpa_ie_len,
elems.mdie, elems.mdie_len);
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_ALLOC_FAIL)
resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
#ifdef CONFIG_IEEE80211W
else if (res == WPA_MGMT_FRAME_PROTECTION_VIOLATION)
resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION;
else if (res == WPA_INVALID_MGMT_GROUP_CIPHER)
resp = WLAN_STATUS_ROBUST_MGMT_FRAME_POLICY_VIOLATION;
#endif /* CONFIG_IEEE80211W */
else if (res == WPA_INVALID_MDIE)
resp = WLAN_STATUS_INVALID_MDIE;
else if (res != WPA_IE_OK)
resp = WLAN_STATUS_INVALID_IE;
if (resp != WLAN_STATUS_SUCCESS)
return resp;
#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 &&
(!reassoc || 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);
return WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY;
}
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) {
if (!reassoc) {
wpa_printf(MSG_DEBUG, "FT: " MACSTR " tried "
"to use association (not "
"re-association) with FT auth_alg",
MAC2STR(sta->addr));
return WLAN_STATUS_UNSPECIFIED_FAILURE;
}
resp = wpa_ft_validate_reassoc(sta->wpa_sm, ies,
ies_len);
if (resp != WLAN_STATUS_SUCCESS)
return resp;
}
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211N
if ((sta->flags & WLAN_STA_HT) &&
wpa_auth_get_pairwise(sta->wpa_sm) == WPA_CIPHER_TKIP) {
hostapd_logger(hapd, sta->addr,
HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_INFO,
"Station tried to use TKIP with HT "
"association");
return WLAN_STATUS_CIPHER_REJECTED_PER_POLICY;
}
#endif /* CONFIG_IEEE80211N */
} else
wpa_auth_sta_no_wpa(sta->wpa_sm);
return WLAN_STATUS_SUCCESS;
}
