Updated to hostap_2_6
[mech_eap.git] / libeap / src / ap / beacon.c
index 5fe8fd5..233320d 100644 (file)
@@ -29,6 +29,7 @@
 #include "beacon.h"
 #include "hs20.h"
 #include "dfs.h"
+#include "taxonomy.h"
 
 
 #ifdef NEED_AP_MLME
 static u8 * hostapd_eid_rm_enabled_capab(struct hostapd_data *hapd, u8 *eid,
                                         size_t len)
 {
-       if (!hapd->conf->radio_measurements || len < 2 + 4)
+       size_t i;
+
+       for (i = 0; i < RRM_CAPABILITIES_IE_LEN; i++) {
+               if (hapd->conf->radio_measurements[i])
+                       break;
+       }
+
+       if (i == RRM_CAPABILITIES_IE_LEN || len < 2 + RRM_CAPABILITIES_IE_LEN)
                return eid;
 
        *eid++ = WLAN_EID_RRM_ENABLED_CAPABILITIES;
-       *eid++ = 5;
-       *eid++ = (hapd->conf->radio_measurements & BIT(0)) ?
-               WLAN_RRM_CAPS_NEIGHBOR_REPORT : 0x00;
-       *eid++ = 0x00;
-       *eid++ = 0x00;
-       *eid++ = 0x00;
-       *eid++ = 0x00;
-       return eid;
+       *eid++ = RRM_CAPABILITIES_IE_LEN;
+       os_memcpy(eid, hapd->conf->radio_measurements, RRM_CAPABILITIES_IE_LEN);
+
+       return eid + RRM_CAPABILITIES_IE_LEN;
 }
 
 
@@ -297,65 +301,65 @@ static u8 * hostapd_eid_wpa(struct hostapd_data *hapd, u8 *eid, size_t len)
 
 static u8 * hostapd_eid_csa(struct hostapd_data *hapd, u8 *eid)
 {
-       u8 chan;
-
-       if (!hapd->cs_freq_params.freq)
+#ifdef CONFIG_TESTING_OPTIONS
+       if (hapd->iface->cs_oper_class && hapd->iconf->ecsa_ie_only)
                return eid;
+#endif /* CONFIG_TESTING_OPTIONS */
 
-       if (ieee80211_freq_to_chan(hapd->cs_freq_params.freq, &chan) ==
-           NUM_HOSTAPD_MODES)
+       if (!hapd->cs_freq_params.channel)
                return eid;
 
        *eid++ = WLAN_EID_CHANNEL_SWITCH;
        *eid++ = 3;
        *eid++ = hapd->cs_block_tx;
-       *eid++ = chan;
+       *eid++ = hapd->cs_freq_params.channel;
        *eid++ = hapd->cs_count;
 
        return eid;
 }
 
 
-static u8 * hostapd_eid_secondary_channel(struct hostapd_data *hapd, u8 *eid)
+static u8 * hostapd_eid_ecsa(struct hostapd_data *hapd, u8 *eid)
 {
-       u8 sec_ch;
-
-       if (!hapd->cs_freq_params.sec_channel_offset)
+       if (!hapd->cs_freq_params.channel || !hapd->iface->cs_oper_class)
                return eid;
 
-       if (hapd->cs_freq_params.sec_channel_offset == -1)
-               sec_ch = HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW;
-       else if (hapd->cs_freq_params.sec_channel_offset == 1)
-               sec_ch = HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE;
-       else
-               return eid;
-
-       *eid++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET;
-       *eid++ = 1;
-       *eid++ = sec_ch;
+       *eid++ = WLAN_EID_EXT_CHANSWITCH_ANN;
+       *eid++ = 4;
+       *eid++ = hapd->cs_block_tx;
+       *eid++ = hapd->iface->cs_oper_class;
+       *eid++ = hapd->cs_freq_params.channel;
+       *eid++ = hapd->cs_count;
 
        return eid;
 }
 
 
-static u8 * hostapd_add_csa_elems(struct hostapd_data *hapd, u8 *pos,
-                                 u8 *start, unsigned int *csa_counter_off)
+static u8 * hostapd_eid_supported_op_classes(struct hostapd_data *hapd, u8 *eid)
 {
-       u8 *old_pos = pos;
+       u8 op_class, channel;
 
-       if (!csa_counter_off)
-               return pos;
+       if (!(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_CSA) ||
+           !hapd->iface->freq)
+               return eid;
 
-       *csa_counter_off = 0;
-       pos = hostapd_eid_csa(hapd, pos);
+       if (ieee80211_freq_to_channel_ext(hapd->iface->freq,
+                                         hapd->iconf->secondary_channel,
+                                         hapd->iconf->vht_oper_chwidth,
+                                         &op_class, &channel) ==
+           NUM_HOSTAPD_MODES)
+               return eid;
 
-       if (pos != old_pos) {
-               /* save an offset to the counter - should be last byte */
-               *csa_counter_off = pos - start - 1;
-               pos = hostapd_eid_secondary_channel(hapd, pos);
-       }
+       *eid++ = WLAN_EID_SUPPORTED_OPERATING_CLASSES;
+       *eid++ = 2;
 
-       return pos;
+       /* Current Operating Class */
+       *eid++ = op_class;
+
+       /* TODO: Advertise all the supported operating classes */
+       *eid++ = 0;
+
+       return eid;
 }
 
 
@@ -364,7 +368,7 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
                                   int is_p2p, size_t *resp_len)
 {
        struct ieee80211_mgmt *resp;
-       u8 *pos, *epos;
+       u8 *pos, *epos, *csa_pos;
        size_t buflen;
 
 #define MAX_PROBERESP_LEN 768
@@ -387,6 +391,9 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
                buflen += 5 + 2 + sizeof(struct ieee80211_vht_capabilities) +
                        2 + sizeof(struct ieee80211_vht_operation);
        }
+
+       buflen += hostapd_mbo_ie_len(hapd);
+
        resp = os_zalloc(buflen);
        if (resp == NULL)
                return NULL;
@@ -424,6 +431,12 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
        /* Power Constraint element */
        pos = hostapd_eid_pwr_constraint(hapd, pos);
 
+       /* CSA IE */
+       csa_pos = hostapd_eid_csa(hapd, pos);
+       if (csa_pos != pos)
+               hapd->cs_c_off_proberesp = csa_pos - (u8 *) resp - 1;
+       pos = csa_pos;
+
        /* ERP Information element */
        pos = hostapd_eid_erp_info(hapd, pos);
 
@@ -437,7 +450,19 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
 
        pos = hostapd_eid_rm_enabled_capab(hapd, pos, epos - pos);
 
+       /* eCSA IE */
+       csa_pos = hostapd_eid_ecsa(hapd, pos);
+       if (csa_pos != pos)
+               hapd->cs_c_off_ecsa_proberesp = csa_pos - (u8 *) resp - 1;
+       pos = csa_pos;
+
+       pos = hostapd_eid_supported_op_classes(hapd, pos);
+
 #ifdef CONFIG_IEEE80211N
+       /* Secondary Channel Offset element */
+       /* TODO: The standard doesn't specify a position for this element. */
+       pos = hostapd_eid_secondary_channel(hapd, pos);
+
        pos = hostapd_eid_ht_capabilities(hapd, pos);
        pos = hostapd_eid_ht_operation(hapd, pos);
 #endif /* CONFIG_IEEE80211N */
@@ -451,9 +476,6 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
        pos = hostapd_eid_adv_proto(hapd, pos);
        pos = hostapd_eid_roaming_consortium(hapd, pos);
 
-       pos = hostapd_add_csa_elems(hapd, pos, (u8 *)resp,
-                                   &hapd->cs_c_off_proberesp);
-
 #ifdef CONFIG_FST
        if (hapd->iface->fst_ies) {
                os_memcpy(pos, wpabuf_head(hapd->iface->fst_ies),
@@ -464,8 +486,10 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
 
 #ifdef CONFIG_IEEE80211AC
        if (hapd->iconf->ieee80211ac && !hapd->conf->disable_11ac) {
-               pos = hostapd_eid_vht_capabilities(hapd, pos);
+               pos = hostapd_eid_vht_capabilities(hapd, pos, 0);
                pos = hostapd_eid_vht_operation(hapd, pos);
+               pos = hostapd_eid_txpower_envelope(hapd, pos);
+               pos = hostapd_eid_wb_chsw_wrapper(hapd, pos);
        }
        if (hapd->conf->vendor_vht)
                pos = hostapd_eid_vendor_vht(hapd, pos);
@@ -501,6 +525,8 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
        pos = hostapd_eid_osen(hapd, pos);
 #endif /* CONFIG_HS20 */
 
+       pos = hostapd_eid_mbo(hapd, pos, (u8 *) resp + buflen - pos);
+
        if (hapd->conf->vendor_elements) {
                os_memcpy(pos, wpabuf_head(hapd->conf->vendor_elements),
                          wpabuf_len(hapd->conf->vendor_elements));
@@ -537,8 +563,8 @@ static enum ssid_match_result ssid_match(struct hostapd_data *hapd,
 
        pos = ssid_list;
        end = ssid_list + ssid_list_len;
-       while (pos + 1 <= end) {
-               if (pos + 2 + pos[1] > end)
+       while (end - pos >= 1) {
+               if (2 + pos[1] > end - pos)
                        break;
                if (pos[1] == 0)
                        wildcard = 1;
@@ -574,7 +600,7 @@ void sta_track_expire(struct hostapd_iface *iface, int force)
                           MAC2STR(info->addr));
                dl_list_del(&info->list);
                iface->num_sta_seen--;
-               os_free(info);
+               sta_track_del(info);
        }
 }
 
@@ -607,6 +633,8 @@ void sta_track_add(struct hostapd_iface *iface, const u8 *addr)
 
        /* Add a new entry */
        info = os_zalloc(sizeof(*info));
+       if (info == NULL)
+               return;
        os_memcpy(info->addr, addr, ETH_ALEN);
        os_get_reltime(&info->last_seen);
 
@@ -648,6 +676,23 @@ sta_track_seen_on(struct hostapd_iface *iface, const u8 *addr,
 }
 
 
+#ifdef CONFIG_TAXONOMY
+void sta_track_claim_taxonomy_info(struct hostapd_iface *iface, const u8 *addr,
+                                  struct wpabuf **probe_ie_taxonomy)
+{
+       struct hostapd_sta_info *info;
+
+       info = sta_track_get(iface, addr);
+       if (!info)
+               return;
+
+       wpabuf_free(*probe_ie_taxonomy);
+       *probe_ie_taxonomy = info->probe_ie_taxonomy;
+       info->probe_ie_taxonomy = NULL;
+}
+#endif /* CONFIG_TAXONOMY */
+
+
 void handle_probe_req(struct hostapd_data *hapd,
                      const struct ieee80211_mgmt *mgmt, size_t len,
                      int ssi_signal)
@@ -659,13 +704,16 @@ void handle_probe_req(struct hostapd_data *hapd,
        size_t i, resp_len;
        int noack;
        enum ssid_match_result res;
+       int ret;
+       u16 csa_offs[2];
+       size_t csa_offs_len;
 
-       ie = mgmt->u.probe_req.variable;
-       if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
+       if (len < IEEE80211_HDRLEN)
                return;
+       ie = ((const u8 *) mgmt) + IEEE80211_HDRLEN;
        if (hapd->iconf->track_sta_max_num)
                sta_track_add(hapd->iface, mgmt->sa);
-       ie_len = len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
+       ie_len = len - IEEE80211_HDRLEN;
 
        for (i = 0; hapd->probereq_cb && i < hapd->num_probereq_cb; i++)
                if (hapd->probereq_cb[i].cb(hapd->probereq_cb[i].ctx,
@@ -711,7 +759,7 @@ void handle_probe_req(struct hostapd_data *hapd,
        }
 
 #ifdef CONFIG_P2P
-       if (hapd->p2p && elems.wps_ie) {
+       if (hapd->p2p && hapd->p2p_group && elems.wps_ie) {
                struct wpabuf *wps;
                wps = ieee802_11_vendor_ie_concat(ie, ie_len, WPS_DEV_OUI_WFA);
                if (wps && !p2p_group_match_dev_type(hapd->p2p_group, wps)) {
@@ -724,7 +772,7 @@ void handle_probe_req(struct hostapd_data *hapd,
                wpabuf_free(wps);
        }
 
-       if (hapd->p2p && elems.p2p) {
+       if (hapd->p2p && hapd->p2p_group && elems.p2p) {
                struct wpabuf *p2p;
                p2p = ieee802_11_vendor_ie_concat(ie, ie_len, P2P_IE_VENDOR_TYPE);
                if (p2p && !p2p_group_match_dev_id(hapd->p2p_group, p2p)) {
@@ -754,6 +802,21 @@ void handle_probe_req(struct hostapd_data *hapd,
        }
 #endif /* CONFIG_P2P */
 
+#ifdef CONFIG_TAXONOMY
+       {
+               struct sta_info *sta;
+               struct hostapd_sta_info *info;
+
+               if ((sta = ap_get_sta(hapd, mgmt->sa)) != NULL) {
+                       taxonomy_sta_info_probe_req(hapd, sta, ie, ie_len);
+               } else if ((info = sta_track_get(hapd->iface,
+                                                mgmt->sa)) != NULL) {
+                       taxonomy_hostapd_sta_info_probe_req(hapd, info,
+                                                           ie, ie_len);
+               }
+       }
+#endif /* CONFIG_TAXONOMY */
+
        res = ssid_match(hapd, elems.ssid, elems.ssid_len,
                         elems.ssid_list, elems.ssid_list_len);
        if (res == NO_SSID_MATCH) {
@@ -825,6 +888,17 @@ void handle_probe_req(struct hostapd_data *hapd,
                return;
        }
 
+       if (hapd->conf->no_probe_resp_if_max_sta &&
+           is_multicast_ether_addr(mgmt->da) &&
+           is_multicast_ether_addr(mgmt->bssid) &&
+           hapd->num_sta >= hapd->conf->max_num_sta &&
+           !ap_get_sta(hapd, mgmt->sa)) {
+               wpa_printf(MSG_MSGDUMP, "%s: Ignore Probe Request from " MACSTR
+                          " since no room for additional STA",
+                          hapd->conf->iface, MAC2STR(mgmt->sa));
+               return;
+       }
+
 #ifdef CONFIG_TESTING_OPTIONS
        if (hapd->iconf->ignore_probe_probability > 0.0 &&
            drand48() < hapd->iconf->ignore_probe_probability) {
@@ -847,7 +921,22 @@ void handle_probe_req(struct hostapd_data *hapd,
        noack = !!(res == WILDCARD_SSID_MATCH &&
                   is_broadcast_ether_addr(mgmt->da));
 
-       if (hostapd_drv_send_mlme(hapd, resp, resp_len, noack) < 0)
+       csa_offs_len = 0;
+       if (hapd->csa_in_progress) {
+               if (hapd->cs_c_off_proberesp)
+                       csa_offs[csa_offs_len++] =
+                               hapd->cs_c_off_proberesp;
+
+               if (hapd->cs_c_off_ecsa_proberesp)
+                       csa_offs[csa_offs_len++] =
+                               hapd->cs_c_off_ecsa_proberesp;
+       }
+
+       ret = hostapd_drv_send_mlme_csa(hapd, resp, resp_len, noack,
+                                       csa_offs_len ? csa_offs : NULL,
+                                       csa_offs_len);
+
+       if (ret < 0)
                wpa_printf(MSG_INFO, "handle_probe_req: send failed");
 
        os_free(resp);
@@ -896,6 +985,16 @@ static u8 * hostapd_probe_resp_offloads(struct hostapd_data *hapd,
 #endif /* NEED_AP_MLME */
 
 
+void sta_track_del(struct hostapd_sta_info *info)
+{
+#ifdef CONFIG_TAXONOMY
+       wpabuf_free(info->probe_ie_taxonomy);
+       info->probe_ie_taxonomy = NULL;
+#endif /* CONFIG_TAXONOMY */
+       os_free(info);
+}
+
+
 int ieee802_11_build_ap_params(struct hostapd_data *hapd,
                               struct wpa_driver_ap_params *params)
 {
@@ -906,7 +1005,7 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
        size_t resp_len = 0;
 #ifdef NEED_AP_MLME
        u16 capab_info;
-       u8 *pos, *tailpos;
+       u8 *pos, *tailpos, *csa_pos;
 
 #define BEACON_HEAD_BUF_SIZE 256
 #define BEACON_TAIL_BUF_SIZE 512
@@ -934,6 +1033,8 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
        }
 #endif /* CONFIG_IEEE80211AC */
 
+       tail_len += hostapd_mbo_ie_len(hapd);
+
        tailpos = tail = os_malloc(tail_len);
        if (head == NULL || tail == NULL) {
                wpa_printf(MSG_ERROR, "Failed to set beacon data");
@@ -987,6 +1088,12 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
        /* Power Constraint element */
        tailpos = hostapd_eid_pwr_constraint(hapd, tailpos);
 
+       /* CSA IE */
+       csa_pos = hostapd_eid_csa(hapd, tailpos);
+       if (csa_pos != tailpos)
+               hapd->cs_c_off_beacon = csa_pos - tail - 1;
+       tailpos = csa_pos;
+
        /* ERP Information element */
        tailpos = hostapd_eid_erp_info(hapd, tailpos);
 
@@ -1004,7 +1111,19 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
        tailpos = hostapd_eid_bss_load(hapd, tailpos,
                                       tail + BEACON_TAIL_BUF_SIZE - tailpos);
 
+       /* eCSA IE */
+       csa_pos = hostapd_eid_ecsa(hapd, tailpos);
+       if (csa_pos != tailpos)
+               hapd->cs_c_off_ecsa_beacon = csa_pos - tail - 1;
+       tailpos = csa_pos;
+
+       tailpos = hostapd_eid_supported_op_classes(hapd, tailpos);
+
 #ifdef CONFIG_IEEE80211N
+       /* Secondary Channel Offset element */
+       /* TODO: The standard doesn't specify a position for this element. */
+       tailpos = hostapd_eid_secondary_channel(hapd, tailpos);
+
        tailpos = hostapd_eid_ht_capabilities(hapd, tailpos);
        tailpos = hostapd_eid_ht_operation(hapd, tailpos);
 #endif /* CONFIG_IEEE80211N */
@@ -1020,8 +1139,6 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
        tailpos = hostapd_eid_interworking(hapd, tailpos);
        tailpos = hostapd_eid_adv_proto(hapd, tailpos);
        tailpos = hostapd_eid_roaming_consortium(hapd, tailpos);
-       tailpos = hostapd_add_csa_elems(hapd, tailpos, tail,
-                                       &hapd->cs_c_off_beacon);
 
 #ifdef CONFIG_FST
        if (hapd->iface->fst_ies) {
@@ -1033,8 +1150,10 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
 
 #ifdef CONFIG_IEEE80211AC
        if (hapd->iconf->ieee80211ac && !hapd->conf->disable_11ac) {
-               tailpos = hostapd_eid_vht_capabilities(hapd, tailpos);
+               tailpos = hostapd_eid_vht_capabilities(hapd, tailpos, 0);
                tailpos = hostapd_eid_vht_operation(hapd, tailpos);
+               tailpos = hostapd_eid_txpower_envelope(hapd, tailpos);
+               tailpos = hostapd_eid_wb_chsw_wrapper(hapd, tailpos);
        }
        if (hapd->conf->vendor_vht)
                tailpos = hostapd_eid_vendor_vht(hapd, tailpos);
@@ -1069,6 +1188,8 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
        tailpos = hostapd_eid_osen(hapd, tailpos);
 #endif /* CONFIG_HS20 */
 
+       tailpos = hostapd_eid_mbo(hapd, tailpos, tail + tail_len - tailpos);
+
        if (hapd->conf->vendor_elements) {
                os_memcpy(tailpos, wpabuf_head(hapd->conf->vendor_elements),
                          wpabuf_len(hapd->conf->vendor_elements));
@@ -1153,6 +1274,7 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
                params->osen = 1;
        }
 #endif /* CONFIG_HS20 */
+       params->pbss = hapd->conf->pbss;
        return 0;
 }