--- /dev/null
+/*
+ * hostapd / IEEE 802.11 Management
+ * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "common/ieee802_11_defs.h"
+#include "hostapd.h"
+#include "sta_info.h"
+#include "ap_config.h"
+#include "ap_drv_ops.h"
+#include "ieee802_11.h"
+
+
+#ifdef CONFIG_IEEE80211W
+
+u8 * hostapd_eid_assoc_comeback_time(struct hostapd_data *hapd,
+ struct sta_info *sta, u8 *eid)
+{
+ u8 *pos = eid;
+ u32 timeout, tu;
+ struct os_reltime now, passed;
+
+ *pos++ = WLAN_EID_TIMEOUT_INTERVAL;
+ *pos++ = 5;
+ *pos++ = WLAN_TIMEOUT_ASSOC_COMEBACK;
+ os_get_reltime(&now);
+ os_reltime_sub(&now, &sta->sa_query_start, &passed);
+ tu = (passed.sec * 1000000 + passed.usec) / 1024;
+ if (hapd->conf->assoc_sa_query_max_timeout > tu)
+ timeout = hapd->conf->assoc_sa_query_max_timeout - tu;
+ else
+ timeout = 0;
+ if (timeout < hapd->conf->assoc_sa_query_max_timeout)
+ timeout++; /* add some extra time for local timers */
+ WPA_PUT_LE32(pos, timeout);
+ pos += 4;
+
+ return pos;
+}
+
+
+/* MLME-SAQuery.request */
+void ieee802_11_send_sa_query_req(struct hostapd_data *hapd,
+ const u8 *addr, const u8 *trans_id)
+{
+ struct ieee80211_mgmt mgmt;
+ u8 *end;
+
+ wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Request to "
+ MACSTR, MAC2STR(addr));
+ wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
+ trans_id, WLAN_SA_QUERY_TR_ID_LEN);
+
+ os_memset(&mgmt, 0, sizeof(mgmt));
+ mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
+ WLAN_FC_STYPE_ACTION);
+ os_memcpy(mgmt.da, addr, ETH_ALEN);
+ os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
+ os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
+ mgmt.u.action.category = WLAN_ACTION_SA_QUERY;
+ mgmt.u.action.u.sa_query_req.action = WLAN_SA_QUERY_REQUEST;
+ os_memcpy(mgmt.u.action.u.sa_query_req.trans_id, trans_id,
+ WLAN_SA_QUERY_TR_ID_LEN);
+ end = mgmt.u.action.u.sa_query_req.trans_id + WLAN_SA_QUERY_TR_ID_LEN;
+ if (hostapd_drv_send_mlme(hapd, &mgmt, end - (u8 *) &mgmt, 0) < 0)
+ wpa_printf(MSG_INFO, "ieee802_11_send_sa_query_req: send failed");
+}
+
+
+static void ieee802_11_send_sa_query_resp(struct hostapd_data *hapd,
+ const u8 *sa, const u8 *trans_id)
+{
+ struct sta_info *sta;
+ struct ieee80211_mgmt resp;
+ u8 *end;
+
+ wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Request from "
+ MACSTR, MAC2STR(sa));
+ wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
+ trans_id, WLAN_SA_QUERY_TR_ID_LEN);
+
+ sta = ap_get_sta(hapd, sa);
+ if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) {
+ wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignore SA Query Request "
+ "from unassociated STA " MACSTR, MAC2STR(sa));
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Response to "
+ MACSTR, MAC2STR(sa));
+
+ os_memset(&resp, 0, sizeof(resp));
+ resp.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
+ WLAN_FC_STYPE_ACTION);
+ os_memcpy(resp.da, sa, ETH_ALEN);
+ os_memcpy(resp.sa, hapd->own_addr, ETH_ALEN);
+ os_memcpy(resp.bssid, hapd->own_addr, ETH_ALEN);
+ resp.u.action.category = WLAN_ACTION_SA_QUERY;
+ resp.u.action.u.sa_query_req.action = WLAN_SA_QUERY_RESPONSE;
+ os_memcpy(resp.u.action.u.sa_query_req.trans_id, trans_id,
+ WLAN_SA_QUERY_TR_ID_LEN);
+ end = resp.u.action.u.sa_query_req.trans_id + WLAN_SA_QUERY_TR_ID_LEN;
+ if (hostapd_drv_send_mlme(hapd, &resp, end - (u8 *) &resp, 0) < 0)
+ wpa_printf(MSG_INFO, "ieee80211_mgmt_sa_query_request: send failed");
+}
+
+
+void ieee802_11_sa_query_action(struct hostapd_data *hapd, const u8 *sa,
+ const u8 action_type, const u8 *trans_id)
+{
+ struct sta_info *sta;
+ int i;
+
+ if (action_type == WLAN_SA_QUERY_REQUEST) {
+ ieee802_11_send_sa_query_resp(hapd, sa, trans_id);
+ return;
+ }
+
+ if (action_type != WLAN_SA_QUERY_RESPONSE) {
+ wpa_printf(MSG_DEBUG, "IEEE 802.11: Unexpected SA Query "
+ "Action %d", action_type);
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Response from "
+ MACSTR, MAC2STR(sa));
+ wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
+ trans_id, WLAN_SA_QUERY_TR_ID_LEN);
+
+ /* MLME-SAQuery.confirm */
+
+ sta = ap_get_sta(hapd, sa);
+ if (sta == NULL || sta->sa_query_trans_id == NULL) {
+ wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching STA with "
+ "pending SA Query request found");
+ return;
+ }
+
+ for (i = 0; i < sta->sa_query_count; i++) {
+ if (os_memcmp(sta->sa_query_trans_id +
+ i * WLAN_SA_QUERY_TR_ID_LEN,
+ trans_id, WLAN_SA_QUERY_TR_ID_LEN) == 0)
+ break;
+ }
+
+ if (i >= sta->sa_query_count) {
+ wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching SA Query "
+ "transaction identifier found");
+ return;
+ }
+
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
+ HOSTAPD_LEVEL_DEBUG,
+ "Reply to pending SA Query received");
+ ap_sta_stop_sa_query(hapd, sta);
+}
+
+#endif /* CONFIG_IEEE80211W */
+
+
+static void hostapd_ext_capab_byte(struct hostapd_data *hapd, u8 *pos, int idx)
+{
+ *pos = 0x00;
+
+ switch (idx) {
+ case 0: /* Bits 0-7 */
+ if (hapd->iconf->obss_interval)
+ *pos |= 0x01; /* Bit 0 - Coexistence management */
+ if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)
+ *pos |= 0x04; /* Bit 2 - Extended Channel Switching */
+ break;
+ case 1: /* Bits 8-15 */
+ if (hapd->conf->proxy_arp)
+ *pos |= 0x10; /* Bit 12 - Proxy ARP */
+ break;
+ case 2: /* Bits 16-23 */
+ if (hapd->conf->wnm_sleep_mode)
+ *pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */
+ if (hapd->conf->bss_transition)
+ *pos |= 0x08; /* Bit 19 - BSS Transition */
+ break;
+ case 3: /* Bits 24-31 */
+#ifdef CONFIG_WNM
+ *pos |= 0x02; /* Bit 25 - SSID List */
+#endif /* CONFIG_WNM */
+ if (hapd->conf->time_advertisement == 2)
+ *pos |= 0x08; /* Bit 27 - UTC TSF Offset */
+ if (hapd->conf->interworking)
+ *pos |= 0x80; /* Bit 31 - Interworking */
+ break;
+ case 4: /* Bits 32-39 */
+ if (hapd->conf->qos_map_set_len)
+ *pos |= 0x01; /* Bit 32 - QoS Map */
+ if (hapd->conf->tdls & TDLS_PROHIBIT)
+ *pos |= 0x40; /* Bit 38 - TDLS Prohibited */
+ if (hapd->conf->tdls & TDLS_PROHIBIT_CHAN_SWITCH) {
+ /* Bit 39 - TDLS Channel Switching Prohibited */
+ *pos |= 0x80;
+ }
+ break;
+ case 5: /* Bits 40-47 */
+#ifdef CONFIG_HS20
+ if (hapd->conf->hs20)
+ *pos |= 0x40; /* Bit 46 - WNM-Notification */
+#endif /* CONFIG_HS20 */
+#ifdef CONFIG_MBO
+ if (hapd->conf->mbo_enabled)
+ *pos |= 0x40; /* Bit 46 - WNM-Notification */
+#endif /* CONFIG_MBO */
+ break;
+ case 6: /* Bits 48-55 */
+ if (hapd->conf->ssid.utf8_ssid)
+ *pos |= 0x01; /* Bit 48 - UTF-8 SSID */
+ break;
+ case 8: /* Bits 64-71 */
+ if (hapd->conf->ftm_responder)
+ *pos |= 0x40; /* Bit 70 - FTM responder */
+ if (hapd->conf->ftm_initiator)
+ *pos |= 0x80; /* Bit 71 - FTM initiator */
+ break;
+ }
+}
+
+
+u8 * hostapd_eid_ext_capab(struct hostapd_data *hapd, u8 *eid)
+{
+ u8 *pos = eid;
+ u8 len = 0, i;
+
+ if (hapd->conf->tdls & (TDLS_PROHIBIT | TDLS_PROHIBIT_CHAN_SWITCH))
+ len = 5;
+ if (len < 4 && hapd->conf->interworking)
+ len = 4;
+ if (len < 3 && hapd->conf->wnm_sleep_mode)
+ len = 3;
+ if (len < 1 && hapd->iconf->obss_interval)
+ len = 1;
+ if (len < 7 && hapd->conf->ssid.utf8_ssid)
+ len = 7;
+ if (len < 9 &&
+ (hapd->conf->ftm_initiator || hapd->conf->ftm_responder))
+ len = 9;
+#ifdef CONFIG_WNM
+ if (len < 4)
+ len = 4;
+#endif /* CONFIG_WNM */
+#ifdef CONFIG_HS20
+ if (hapd->conf->hs20 && len < 6)
+ len = 6;
+#endif /* CONFIG_HS20 */
+#ifdef CONFIG_MBO
+ if (hapd->conf->mbo_enabled && len < 6)
+ len = 6;
+#endif /* CONFIG_MBO */
+ if (len < hapd->iface->extended_capa_len)
+ len = hapd->iface->extended_capa_len;
+ if (len == 0)
+ return eid;
+
+ *pos++ = WLAN_EID_EXT_CAPAB;
+ *pos++ = len;
+ for (i = 0; i < len; i++, pos++) {
+ hostapd_ext_capab_byte(hapd, pos, i);
+
+ if (i < hapd->iface->extended_capa_len) {
+ *pos &= ~hapd->iface->extended_capa_mask[i];
+ *pos |= hapd->iface->extended_capa[i];
+ }
+ }
+
+ while (len > 0 && eid[1 + len] == 0) {
+ len--;
+ eid[1] = len;
+ }
+ if (len == 0)
+ return eid;
+
+ return eid + 2 + len;
+}
+
+
+u8 * hostapd_eid_qos_map_set(struct hostapd_data *hapd, u8 *eid)
+{
+ u8 *pos = eid;
+ u8 len = hapd->conf->qos_map_set_len;
+
+ if (!len)
+ return eid;
+
+ *pos++ = WLAN_EID_QOS_MAP_SET;
+ *pos++ = len;
+ os_memcpy(pos, hapd->conf->qos_map_set, len);
+ pos += len;
+
+ return pos;
+}
+
+
+u8 * hostapd_eid_interworking(struct hostapd_data *hapd, u8 *eid)
+{
+ u8 *pos = eid;
+#ifdef CONFIG_INTERWORKING
+ u8 *len;
+
+ if (!hapd->conf->interworking)
+ return eid;
+
+ *pos++ = WLAN_EID_INTERWORKING;
+ len = pos++;
+
+ *pos = hapd->conf->access_network_type;
+ if (hapd->conf->internet)
+ *pos |= INTERWORKING_ANO_INTERNET;
+ if (hapd->conf->asra)
+ *pos |= INTERWORKING_ANO_ASRA;
+ if (hapd->conf->esr)
+ *pos |= INTERWORKING_ANO_ESR;
+ if (hapd->conf->uesa)
+ *pos |= INTERWORKING_ANO_UESA;
+ pos++;
+
+ if (hapd->conf->venue_info_set) {
+ *pos++ = hapd->conf->venue_group;
+ *pos++ = hapd->conf->venue_type;
+ }
+
+ if (!is_zero_ether_addr(hapd->conf->hessid)) {
+ os_memcpy(pos, hapd->conf->hessid, ETH_ALEN);
+ pos += ETH_ALEN;
+ }
+
+ *len = pos - len - 1;
+#endif /* CONFIG_INTERWORKING */
+
+ return pos;
+}
+
+
+u8 * hostapd_eid_adv_proto(struct hostapd_data *hapd, u8 *eid)
+{
+ u8 *pos = eid;
+#ifdef CONFIG_INTERWORKING
+
+ /* TODO: Separate configuration for ANQP? */
+ if (!hapd->conf->interworking)
+ return eid;
+
+ *pos++ = WLAN_EID_ADV_PROTO;
+ *pos++ = 2;
+ *pos++ = 0x7F; /* Query Response Length Limit | PAME-BI */
+ *pos++ = ACCESS_NETWORK_QUERY_PROTOCOL;
+#endif /* CONFIG_INTERWORKING */
+
+ return pos;
+}
+
+
+u8 * hostapd_eid_roaming_consortium(struct hostapd_data *hapd, u8 *eid)
+{
+ u8 *pos = eid;
+#ifdef CONFIG_INTERWORKING
+ u8 *len;
+ unsigned int i, count;
+
+ if (!hapd->conf->interworking ||
+ hapd->conf->roaming_consortium == NULL ||
+ hapd->conf->roaming_consortium_count == 0)
+ return eid;
+
+ *pos++ = WLAN_EID_ROAMING_CONSORTIUM;
+ len = pos++;
+
+ /* Number of ANQP OIs (in addition to the max 3 listed here) */
+ if (hapd->conf->roaming_consortium_count > 3 + 255)
+ *pos++ = 255;
+ else if (hapd->conf->roaming_consortium_count > 3)
+ *pos++ = hapd->conf->roaming_consortium_count - 3;
+ else
+ *pos++ = 0;
+
+ /* OU #1 and #2 Lengths */
+ *pos = hapd->conf->roaming_consortium[0].len;
+ if (hapd->conf->roaming_consortium_count > 1)
+ *pos |= hapd->conf->roaming_consortium[1].len << 4;
+ pos++;
+
+ if (hapd->conf->roaming_consortium_count > 3)
+ count = 3;
+ else
+ count = hapd->conf->roaming_consortium_count;
+
+ for (i = 0; i < count; i++) {
+ os_memcpy(pos, hapd->conf->roaming_consortium[i].oi,
+ hapd->conf->roaming_consortium[i].len);
+ pos += hapd->conf->roaming_consortium[i].len;
+ }
+
+ *len = pos - len - 1;
+#endif /* CONFIG_INTERWORKING */
+
+ return pos;
+}
+
+
+u8 * hostapd_eid_time_adv(struct hostapd_data *hapd, u8 *eid)
+{
+ if (hapd->conf->time_advertisement != 2)
+ return eid;
+
+ if (hapd->time_adv == NULL &&
+ hostapd_update_time_adv(hapd) < 0)
+ return eid;
+
+ if (hapd->time_adv == NULL)
+ return eid;
+
+ os_memcpy(eid, wpabuf_head(hapd->time_adv),
+ wpabuf_len(hapd->time_adv));
+ eid += wpabuf_len(hapd->time_adv);
+
+ return eid;
+}
+
+
+u8 * hostapd_eid_time_zone(struct hostapd_data *hapd, u8 *eid)
+{
+ size_t len;
+
+ if (hapd->conf->time_advertisement != 2)
+ return eid;
+
+ len = os_strlen(hapd->conf->time_zone);
+
+ *eid++ = WLAN_EID_TIME_ZONE;
+ *eid++ = len;
+ os_memcpy(eid, hapd->conf->time_zone, len);
+ eid += len;
+
+ return eid;
+}
+
+
+int hostapd_update_time_adv(struct hostapd_data *hapd)
+{
+ const int elen = 2 + 1 + 10 + 5 + 1;
+ struct os_time t;
+ struct os_tm tm;
+ u8 *pos;
+
+ if (hapd->conf->time_advertisement != 2)
+ return 0;
+
+ if (os_get_time(&t) < 0 || os_gmtime(t.sec, &tm) < 0)
+ return -1;
+
+ if (!hapd->time_adv) {
+ hapd->time_adv = wpabuf_alloc(elen);
+ if (hapd->time_adv == NULL)
+ return -1;
+ pos = wpabuf_put(hapd->time_adv, elen);
+ } else
+ pos = wpabuf_mhead_u8(hapd->time_adv);
+
+ *pos++ = WLAN_EID_TIME_ADVERTISEMENT;
+ *pos++ = 1 + 10 + 5 + 1;
+
+ *pos++ = 2; /* UTC time at which the TSF timer is 0 */
+
+ /* Time Value at TSF 0 */
+ /* FIX: need to calculate this based on the current TSF value */
+ WPA_PUT_LE16(pos, tm.year); /* Year */
+ pos += 2;
+ *pos++ = tm.month; /* Month */
+ *pos++ = tm.day; /* Day of month */
+ *pos++ = tm.hour; /* Hours */
+ *pos++ = tm.min; /* Minutes */
+ *pos++ = tm.sec; /* Seconds */
+ WPA_PUT_LE16(pos, 0); /* Milliseconds (not used) */
+ pos += 2;
+ *pos++ = 0; /* Reserved */
+
+ /* Time Error */
+ /* TODO: fill in an estimate on the error */
+ *pos++ = 0;
+ *pos++ = 0;
+ *pos++ = 0;
+ *pos++ = 0;
+ *pos++ = 0;
+
+ *pos++ = hapd->time_update_counter++;
+
+ return 0;
+}
+
+
+u8 * hostapd_eid_bss_max_idle_period(struct hostapd_data *hapd, u8 *eid)
+{
+ u8 *pos = eid;
+
+#ifdef CONFIG_WNM
+ if (hapd->conf->ap_max_inactivity > 0) {
+ unsigned int val;
+ *pos++ = WLAN_EID_BSS_MAX_IDLE_PERIOD;
+ *pos++ = 3;
+ val = hapd->conf->ap_max_inactivity;
+ if (val > 68000)
+ val = 68000;
+ val *= 1000;
+ val /= 1024;
+ if (val == 0)
+ val = 1;
+ if (val > 65535)
+ val = 65535;
+ WPA_PUT_LE16(pos, val);
+ pos += 2;
+ *pos++ = 0x00; /* TODO: Protected Keep-Alive Required */
+ }
+#endif /* CONFIG_WNM */
+
+ return pos;
+}
+
+
+#ifdef CONFIG_MBO
+
+u8 * hostapd_eid_mbo(struct hostapd_data *hapd, u8 *eid, size_t len)
+{
+ u8 mbo[6], *mbo_pos = mbo;
+ u8 *pos = eid;
+
+ if (!hapd->conf->mbo_enabled)
+ return eid;
+
+ *mbo_pos++ = MBO_ATTR_ID_AP_CAPA_IND;
+ *mbo_pos++ = 1;
+ /* Not Cellular aware */
+ *mbo_pos++ = 0;
+
+ if (hapd->mbo_assoc_disallow) {
+ *mbo_pos++ = MBO_ATTR_ID_ASSOC_DISALLOW;
+ *mbo_pos++ = 1;
+ *mbo_pos++ = hapd->mbo_assoc_disallow;
+ }
+
+ pos += mbo_add_ie(pos, len, mbo, mbo_pos - mbo);
+
+ return pos;
+}
+
+
+u8 hostapd_mbo_ie_len(struct hostapd_data *hapd)
+{
+ if (!hapd->conf->mbo_enabled)
+ return 0;
+
+ /*
+ * MBO IE header (6) + Capability Indication attribute (3) +
+ * Association Disallowed attribute (3) = 12
+ */
+ return 6 + 3 + (hapd->mbo_assoc_disallow ? 3 : 0);
+}
+
+#endif /* CONFIG_MBO */
+
+
+void ap_copy_sta_supp_op_classes(struct sta_info *sta,
+ const u8 *supp_op_classes,
+ size_t supp_op_classes_len)
+{
+ if (!supp_op_classes)
+ return;
+ os_free(sta->supp_op_classes);
+ sta->supp_op_classes = os_malloc(1 + supp_op_classes_len);
+ if (!sta->supp_op_classes)
+ return;
+
+ sta->supp_op_classes[0] = supp_op_classes_len;
+ os_memcpy(sta->supp_op_classes + 1, supp_op_classes,
+ supp_op_classes_len);
+}
projects / mech_eap.git / blobdiff