ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wpa_supplicant/rrm.c b/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wpa_supplicant/rrm.c
new file mode 100644
index 0000000..238fe68
--- /dev/null
+++ b/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wpa_supplicant/rrm.c
@@ -0,0 +1,1592 @@
+/*
+ * wpa_supplicant - Radio Measurements
+ * Copyright (c) 2003-2016, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "includes.h"
+
+#include "utils/common.h"
+#include "utils/eloop.h"
+#include "common/ieee802_11_common.h"
+#include "wpa_supplicant_i.h"
+#include "driver_i.h"
+#include "bss.h"
+#include "scan.h"
+#include "p2p_supplicant.h"
+
+
+static void wpas_rrm_neighbor_rep_timeout_handler(void *data, void *user_ctx)
+{
+ struct rrm_data *rrm = data;
+
+ if (!rrm->notify_neighbor_rep) {
+ wpa_printf(MSG_ERROR,
+ "RRM: Unexpected neighbor report timeout");
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report - NONE");
+ rrm->notify_neighbor_rep(rrm->neighbor_rep_cb_ctx, NULL);
+
+ rrm->notify_neighbor_rep = NULL;
+ rrm->neighbor_rep_cb_ctx = NULL;
+}
+
+
+/*
+ * wpas_rrm_reset - Clear and reset all RRM data in wpa_supplicant
+ * @wpa_s: Pointer to wpa_supplicant
+ */
+void wpas_rrm_reset(struct wpa_supplicant *wpa_s)
+{
+ wpa_s->rrm.rrm_used = 0;
+
+ eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
+ NULL);
+ if (wpa_s->rrm.notify_neighbor_rep)
+ wpas_rrm_neighbor_rep_timeout_handler(&wpa_s->rrm, NULL);
+ wpa_s->rrm.next_neighbor_rep_token = 1;
+ wpas_clear_beacon_rep_data(wpa_s);
+}
+
+
+/*
+ * wpas_rrm_process_neighbor_rep - Handle incoming neighbor report
+ * @wpa_s: Pointer to wpa_supplicant
+ * @report: Neighbor report buffer, prefixed by a 1-byte dialog token
+ * @report_len: Length of neighbor report buffer
+ */
+void wpas_rrm_process_neighbor_rep(struct wpa_supplicant *wpa_s,
+ const u8 *report, size_t report_len)
+{
+ struct wpabuf *neighbor_rep;
+
+ wpa_hexdump(MSG_DEBUG, "RRM: New Neighbor Report", report, report_len);
+ if (report_len < 1)
+ return;
+
+ if (report[0] != wpa_s->rrm.next_neighbor_rep_token - 1) {
+ wpa_printf(MSG_DEBUG,
+ "RRM: Discarding neighbor report with token %d (expected %d)",
+ report[0], wpa_s->rrm.next_neighbor_rep_token - 1);
+ return;
+ }
+
+ eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm,
+ NULL);
+
+ if (!wpa_s->rrm.notify_neighbor_rep) {
+ wpa_msg(wpa_s, MSG_INFO, "RRM: Unexpected neighbor report");
+ return;
+ }
+
+ /* skipping the first byte, which is only an id (dialog token) */
+ neighbor_rep = wpabuf_alloc(report_len - 1);
+ if (!neighbor_rep) {
+ wpas_rrm_neighbor_rep_timeout_handler(&wpa_s->rrm, NULL);
+ return;
+ }
+ wpabuf_put_data(neighbor_rep, report + 1, report_len - 1);
+ wpa_dbg(wpa_s, MSG_DEBUG, "RRM: Notifying neighbor report (token = %d)",
+ report[0]);
+ wpa_s->rrm.notify_neighbor_rep(wpa_s->rrm.neighbor_rep_cb_ctx,
+ neighbor_rep);
+ wpa_s->rrm.notify_neighbor_rep = NULL;
+ wpa_s->rrm.neighbor_rep_cb_ctx = NULL;
+}
+
+
+#if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS)
+/* Workaround different, undefined for Windows, error codes used here */
+#ifndef ENOTCONN
+#define ENOTCONN -1
+#endif
+#ifndef EOPNOTSUPP
+#define EOPNOTSUPP -1
+#endif
+#ifndef ECANCELED
+#define ECANCELED -1
+#endif
+#endif
+
+/* Measurement Request element + Location Subject + Maximum Age subelement */
+#define MEASURE_REQUEST_LCI_LEN (3 + 1 + 4)
+/* Measurement Request element + Location Civic Request */
+#define MEASURE_REQUEST_CIVIC_LEN (3 + 5)
+
+
+/**
+ * wpas_rrm_send_neighbor_rep_request - Request a neighbor report from our AP
+ * @wpa_s: Pointer to wpa_supplicant
+ * @ssid: if not null, this is sent in the request. Otherwise, no SSID IE
+ * is sent in the request.
+ * @lci: if set, neighbor request will include LCI request
+ * @civic: if set, neighbor request will include civic location request
+ * @cb: Callback function to be called once the requested report arrives, or
+ * timed out after RRM_NEIGHBOR_REPORT_TIMEOUT seconds.
+ * In the former case, 'neighbor_rep' is a newly allocated wpabuf, and it's
+ * the requester's responsibility to free it.
+ * In the latter case NULL will be sent in 'neighbor_rep'.
+ * @cb_ctx: Context value to send the callback function
+ * Returns: 0 in case of success, negative error code otherwise
+ *
+ * In case there is a previous request which has not been answered yet, the
+ * new request fails. The caller may retry after RRM_NEIGHBOR_REPORT_TIMEOUT.
+ * Request must contain a callback function.
+ */
+int wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s,
+ const struct wpa_ssid_value *ssid,
+ int lci, int civic,
+ void (*cb)(void *ctx,
+ struct wpabuf *neighbor_rep),
+ void *cb_ctx)
+{
+ struct wpabuf *buf;
+ const u8 *rrm_ie;
+
+ if (wpa_s->wpa_state != WPA_COMPLETED || wpa_s->current_ssid == NULL) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "RRM: No connection, no RRM.");
+ return -ENOTCONN;
+ }
+
+ if (!wpa_s->rrm.rrm_used) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "RRM: No RRM in current connection.");
+ return -EOPNOTSUPP;
+ }
+
+ rrm_ie = wpa_bss_get_ie(wpa_s->current_bss,
+ WLAN_EID_RRM_ENABLED_CAPABILITIES);
+ if (!rrm_ie || !(wpa_s->current_bss->caps & IEEE80211_CAP_RRM) ||
+ !(rrm_ie[2] & WLAN_RRM_CAPS_NEIGHBOR_REPORT)) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "RRM: No network support for Neighbor Report.");
+ return -EOPNOTSUPP;
+ }
+
+ /* Refuse if there's a live request */
+ if (wpa_s->rrm.notify_neighbor_rep) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "RRM: Currently handling previous Neighbor Report.");
+ return -EBUSY;
+ }
+
+ /* 3 = action category + action code + dialog token */
+ buf = wpabuf_alloc(3 + (ssid ? 2 + ssid->ssid_len : 0) +
+ (lci ? 2 + MEASURE_REQUEST_LCI_LEN : 0) +
+ (civic ? 2 + MEASURE_REQUEST_CIVIC_LEN : 0));
+ if (buf == NULL) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "RRM: Failed to allocate Neighbor Report Request");
+ return -ENOMEM;
+ }
+
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "RRM: Neighbor report request (for %s), token=%d",
+ (ssid ? wpa_ssid_txt(ssid->ssid, ssid->ssid_len) : ""),
+ wpa_s->rrm.next_neighbor_rep_token);
+
+ wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
+ wpabuf_put_u8(buf, WLAN_RRM_NEIGHBOR_REPORT_REQUEST);
+ wpabuf_put_u8(buf, wpa_s->rrm.next_neighbor_rep_token);
+ if (ssid) {
+ wpabuf_put_u8(buf, WLAN_EID_SSID);
+ wpabuf_put_u8(buf, ssid->ssid_len);
+ wpabuf_put_data(buf, ssid->ssid, ssid->ssid_len);
+ }
+
+ if (lci) {
+ /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
+ wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
+ wpabuf_put_u8(buf, MEASURE_REQUEST_LCI_LEN);
+
+ /*
+ * Measurement token; nonzero number that is unique among the
+ * Measurement Request elements in a particular frame.
+ */
+ wpabuf_put_u8(buf, 1); /* Measurement Token */
+
+ /*
+ * Parallel, Enable, Request, and Report bits are 0, Duration is
+ * reserved.
+ */
+ wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
+ wpabuf_put_u8(buf, MEASURE_TYPE_LCI); /* Measurement Type */
+
+ /* IEEE P802.11-REVmc/D5.0 9.4.2.21.10 - LCI request */
+ /* Location Subject */
+ wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
+
+ /* Optional Subelements */
+ /*
+ * IEEE P802.11-REVmc/D5.0 Figure 9-170
+ * The Maximum Age subelement is required, otherwise the AP can
+ * send only data that was determined after receiving the
+ * request. Setting it here to unlimited age.
+ */
+ wpabuf_put_u8(buf, LCI_REQ_SUBELEM_MAX_AGE);
+ wpabuf_put_u8(buf, 2);
+ wpabuf_put_le16(buf, 0xffff);
+ }
+
+ if (civic) {
+ /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */
+ wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST);
+ wpabuf_put_u8(buf, MEASURE_REQUEST_CIVIC_LEN);
+
+ /*
+ * Measurement token; nonzero number that is unique among the
+ * Measurement Request elements in a particular frame.
+ */
+ wpabuf_put_u8(buf, 2); /* Measurement Token */
+
+ /*
+ * Parallel, Enable, Request, and Report bits are 0, Duration is
+ * reserved.
+ */
+ wpabuf_put_u8(buf, 0); /* Measurement Request Mode */
+ /* Measurement Type */
+ wpabuf_put_u8(buf, MEASURE_TYPE_LOCATION_CIVIC);
+
+ /* IEEE P802.11-REVmc/D5.0 9.4.2.21.14:
+ * Location Civic request */
+ /* Location Subject */
+ wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE);
+ wpabuf_put_u8(buf, 0); /* Civic Location Type: IETF RFC 4776 */
+ /* Location Service Interval Units: Seconds */
+ wpabuf_put_u8(buf, 0);
+ /* Location Service Interval: 0 - Only one report is requested
+ */
+ wpabuf_put_le16(buf, 0);
+ /* No optional subelements */
+ }
+
+ wpa_s->rrm.next_neighbor_rep_token++;
+
+ if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
+ wpa_s->own_addr, wpa_s->bssid,
+ wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "RRM: Failed to send Neighbor Report Request");
+ wpabuf_free(buf);
+ return -ECANCELED;
+ }
+
+ wpa_s->rrm.neighbor_rep_cb_ctx = cb_ctx;
+ wpa_s->rrm.notify_neighbor_rep = cb;
+ eloop_register_timeout(RRM_NEIGHBOR_REPORT_TIMEOUT, 0,
+ wpas_rrm_neighbor_rep_timeout_handler,
+ &wpa_s->rrm, NULL);
+
+ wpabuf_free(buf);
+ return 0;
+}
+
+
+static int wpas_rrm_report_elem(struct wpabuf **buf, u8 token, u8 mode, u8 type,
+ const u8 *data, size_t data_len)
+{
+ if (wpabuf_resize(buf, 5 + data_len))
+ return -1;
+
+ wpabuf_put_u8(*buf, WLAN_EID_MEASURE_REPORT);
+ wpabuf_put_u8(*buf, 3 + data_len);
+ wpabuf_put_u8(*buf, token);
+ wpabuf_put_u8(*buf, mode);
+ wpabuf_put_u8(*buf, type);
+
+ if (data_len)
+ wpabuf_put_data(*buf, data, data_len);
+
+ return 0;
+}
+
+
+static int
+wpas_rrm_build_lci_report(struct wpa_supplicant *wpa_s,
+ const struct rrm_measurement_request_element *req,
+ struct wpabuf **buf)
+{
+ u8 subject;
+ u16 max_age = 0;
+ struct os_reltime t, diff;
+ unsigned long diff_l;
+ const u8 *subelem;
+ const u8 *request = req->variable;
+ size_t len = req->len - 3;
+
+ if (len < 1)
+ return -1;
+
+ if (!wpa_s->lci)
+ goto reject;
+
+ subject = *request++;
+ len--;
+
+ wpa_printf(MSG_DEBUG, "Measurement request location subject=%u",
+ subject);
+
+ if (subject != LOCATION_SUBJECT_REMOTE) {
+ wpa_printf(MSG_INFO,
+ "Not building LCI report - bad location subject");
+ return 0;
+ }
+
+ /* Subelements are formatted exactly like elements */
+ wpa_hexdump(MSG_DEBUG, "LCI request subelements", request, len);
+ subelem = get_ie(request, len, LCI_REQ_SUBELEM_MAX_AGE);
+ if (subelem && subelem[1] == 2)
+ max_age = WPA_GET_LE16(subelem + 2);
+
+ if (os_get_reltime(&t))
+ goto reject;
+
+ os_reltime_sub(&t, &wpa_s->lci_time, &diff);
+ /* LCI age is calculated in 10th of a second units. */
+ diff_l = diff.sec * 10 + diff.usec / 100000;
+
+ if (max_age != 0xffff && max_age < diff_l)
+ goto reject;
+
+ if (wpas_rrm_report_elem(buf, req->token,
+ MEASUREMENT_REPORT_MODE_ACCEPT, req->type,
+ wpabuf_head_u8(wpa_s->lci),
+ wpabuf_len(wpa_s->lci)) < 0) {
+ wpa_printf(MSG_DEBUG, "Failed to add LCI report element");
+ return -1;
+ }
+
+ return 0;
+
+reject:
+ if (!is_multicast_ether_addr(wpa_s->rrm.dst_addr) &&
+ wpas_rrm_report_elem(buf, req->token,
+ MEASUREMENT_REPORT_MODE_REJECT_INCAPABLE,
+ req->type, NULL, 0) < 0) {
+ wpa_printf(MSG_DEBUG, "RRM: Failed to add report element");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static void wpas_rrm_send_msr_report_mpdu(struct wpa_supplicant *wpa_s,
+ const u8 *data, size_t len)
+{
+ struct wpabuf *report = wpabuf_alloc(len + 3);
+
+ if (!report)
+ return;
+
+ wpabuf_put_u8(report, WLAN_ACTION_RADIO_MEASUREMENT);
+ wpabuf_put_u8(report, WLAN_RRM_RADIO_MEASUREMENT_REPORT);
+ wpabuf_put_u8(report, wpa_s->rrm.token);
+
+ wpabuf_put_data(report, data, len);
+
+ if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
+ wpa_s->own_addr, wpa_s->bssid,
+ wpabuf_head(report), wpabuf_len(report), 0)) {
+ wpa_printf(MSG_ERROR,
+ "RRM: Radio measurement report failed: Sending Action frame failed");
+ }
+
+ wpabuf_free(report);
+}
+
+
+static int wpas_rrm_beacon_rep_update_last_frame(u8 *pos, size_t len)
+{
+ struct rrm_measurement_report_element *msr_rep;
+ u8 *end = pos + len;
+ u8 *msr_rep_end;
+ struct rrm_measurement_beacon_report *rep = NULL;
+ u8 *subelem;
+
+ /* Find the last beacon report element */
+ while (end - pos >= (int) sizeof(*msr_rep)) {
+ msr_rep = (struct rrm_measurement_report_element *) pos;
+ msr_rep_end = pos + msr_rep->len + 2;
+
+ if (msr_rep->eid != WLAN_EID_MEASURE_REPORT ||
+ msr_rep_end > end) {
+ /* Should not happen. This indicates a bug. */
+ wpa_printf(MSG_ERROR,
+ "RRM: non-measurement report element in measurement report frame");
+ return -1;
+ }
+
+ if (msr_rep->type == MEASURE_TYPE_BEACON)
+ rep = (struct rrm_measurement_beacon_report *)
+ msr_rep->variable;
+
+ pos += pos[1] + 2;
+ }
+
+ if (!rep)
+ return 0;
+
+ subelem = rep->variable;
+ while (subelem + 2 < msr_rep_end &&
+ subelem[0] != WLAN_BEACON_REPORT_SUBELEM_LAST_INDICATION)
+ subelem += 2 + subelem[1];
+
+ if (subelem + 2 < msr_rep_end &&
+ subelem[0] == WLAN_BEACON_REPORT_SUBELEM_LAST_INDICATION &&
+ subelem[1] == 1 &&
+ subelem + BEACON_REPORT_LAST_INDICATION_SUBELEM_LEN <= end)
+ subelem[2] = 1;
+
+ return 0;
+}
+
+
+static void wpas_rrm_send_msr_report(struct wpa_supplicant *wpa_s,
+ struct wpabuf *buf)
+{
+ int len = wpabuf_len(buf);
+ u8 *pos = wpabuf_mhead_u8(buf), *next = pos;
+
+#define MPDU_REPORT_LEN (int) (IEEE80211_MAX_MMPDU_SIZE - IEEE80211_HDRLEN - 3)
+
+ while (len) {
+ int send_len = (len > MPDU_REPORT_LEN) ? next - pos : len;
+
+ if (send_len == len)
+ wpas_rrm_beacon_rep_update_last_frame(pos, len);
+
+ if (send_len == len ||
+ (send_len + next[1] + 2) > MPDU_REPORT_LEN) {
+ wpas_rrm_send_msr_report_mpdu(wpa_s, pos, send_len);
+ len -= send_len;
+ pos = next;
+ }
+
+ if (len)
+ next += next[1] + 2;
+ }
+#undef MPDU_REPORT_LEN
+}
+
+
+static int wpas_add_channel(u8 op_class, u8 chan, u8 num_primary_channels,
+ int *freqs)
+{
+ size_t i;
+
+ for (i = 0; i < num_primary_channels; i++) {
+ u8 primary_chan = chan - (2 * num_primary_channels - 2) + i * 4;
+
+ freqs[i] = ieee80211_chan_to_freq(NULL, op_class, primary_chan);
+ /* ieee80211_chan_to_freq() is not really meant for this
+ * conversion of 20 MHz primary channel numbers for wider VHT
+ * channels, so handle those as special cases here for now. */
+ if (freqs[i] < 0 &&
+ (op_class == 128 || op_class == 129 || op_class == 130))
+ freqs[i] = 5000 + 5 * primary_chan;
+ if (freqs[i] < 0) {
+ wpa_printf(MSG_DEBUG,
+ "Beacon Report: Invalid channel %u",
+ chan);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+
+static int * wpas_add_channels(const struct oper_class_map *op,
+ struct hostapd_hw_modes *mode,
+ const u8 *channels, const u8 size)
+{
+ int *freqs, *next_freq;
+ u8 num_primary_channels, i;
+ u8 num_chans;
+
+ num_chans = channels ? size :
+ (op->max_chan - op->min_chan) / op->inc + 1;
+
+ if (op->bw == BW80 || op->bw == BW80P80)
+ num_primary_channels = 4;
+ else if (op->bw == BW160)
+ num_primary_channels = 8;
+ else
+ num_primary_channels = 1;
+
+ /* one extra place for the zero-terminator */
+ freqs = os_calloc(num_chans * num_primary_channels + 1, sizeof(*freqs));
+ if (!freqs) {
+ wpa_printf(MSG_ERROR,
+ "Beacon Report: Failed to allocate freqs array");
+ return NULL;
+ }
+
+ next_freq = freqs;
+ for (i = 0; i < num_chans; i++) {
+ u8 chan = channels ? channels[i] : op->min_chan + i * op->inc;
+ enum chan_allowed res = verify_channel(mode, op->op_class, chan,
+ op->bw);
+
+ if (res == NOT_ALLOWED)
+ continue;
+
+ if (wpas_add_channel(op->op_class, chan, num_primary_channels,
+ next_freq) < 0) {
+ os_free(freqs);
+ return NULL;
+ }
+
+ next_freq += num_primary_channels;
+ }
+
+ if (!freqs[0]) {
+ os_free(freqs);
+ return NULL;
+ }
+
+ return freqs;
+}
+
+
+static int * wpas_op_class_freqs(const struct oper_class_map *op,
+ struct hostapd_hw_modes *mode)
+{
+ u8 channels_80mhz_5ghz[] = { 42, 58, 106, 122, 138, 155, 171 };
+ u8 channels_160mhz_5ghz[] = { 50, 114, 163 };
+ u8 channels_80mhz_6ghz[] = { 7, 23, 39, 55, 71, 87, 103, 119, 135, 151,
+ 167, 183, 199, 215 };
+ u8 channels_160mhz_6ghz[] = { 15, 47, 79, 111, 143, 175, 207 };
+ const u8 *channels = NULL;
+ size_t num_chan = 0;
+ bool is_6ghz = is_6ghz_op_class(op->op_class);
+
+ /*
+ * When adding all channels in the operating class, 80 + 80 MHz
+ * operating classes are like 80 MHz channels because we add all valid
+ * channels anyway.
+ */
+ if (op->bw == BW80 || op->bw == BW80P80) {
+ channels = is_6ghz ? channels_80mhz_6ghz : channels_80mhz_5ghz;
+ num_chan = is_6ghz ? ARRAY_SIZE(channels_80mhz_6ghz) :
+ ARRAY_SIZE(channels_80mhz_5ghz);
+ } else if (op->bw == BW160) {
+ channels = is_6ghz ? channels_160mhz_6ghz :
+ channels_160mhz_5ghz;
+ num_chan = is_6ghz ? ARRAY_SIZE(channels_160mhz_6ghz) :
+ ARRAY_SIZE(channels_160mhz_5ghz);
+ }
+
+ return wpas_add_channels(op, mode, channels, num_chan);
+}
+
+
+static int * wpas_channel_report_freqs(struct wpa_supplicant *wpa_s,
+ const char *country, const u8 *subelems,
+ size_t len)
+{
+ int *freqs = NULL, *new_freqs;
+ const u8 *end = subelems + len;
+
+ while (end - subelems > 2) {
+ const struct oper_class_map *op;
+ const u8 *ap_chan_elem, *pos;
+ u8 left;
+ struct hostapd_hw_modes *mode;
+
+ ap_chan_elem = get_ie(subelems, end - subelems,
+ WLAN_BEACON_REQUEST_SUBELEM_AP_CHANNEL);
+ if (!ap_chan_elem)
+ break;
+ pos = ap_chan_elem + 2;
+ left = ap_chan_elem[1];
+ if (left < 1)
+ break;
+ subelems = ap_chan_elem + 2 + left;
+
+ op = get_oper_class(country, *pos);
+ if (!op) {
+ wpa_printf(MSG_DEBUG,
+ "Beacon request: unknown operating class in AP Channel Report subelement %u",
+ *pos);
+ goto out;
+ }
+ pos++;
+ left--;
+
+ mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, op->mode,
+ is_6ghz_op_class(op->op_class));
+ if (!mode)
+ continue;
+
+ /*
+ * For 80 + 80 MHz operating classes, this AP Channel Report
+ * element should be followed by another element specifying
+ * the second 80 MHz channel. For now just add this 80 MHz
+ * channel, the second 80 MHz channel will be added when the
+ * next element is parsed.
+ * TODO: Verify that this AP Channel Report element is followed
+ * by a corresponding AP Channel Report element as specified in
+ * IEEE Std 802.11-2016, 11.11.9.1.
+ */
+ new_freqs = wpas_add_channels(op, mode, pos, left);
+ if (new_freqs)
+ int_array_concat(&freqs, new_freqs);
+
+ os_free(new_freqs);
+ }
+
+ return freqs;
+out:
+ os_free(freqs);
+ return NULL;
+}
+
+
+static int * wpas_beacon_request_freqs(struct wpa_supplicant *wpa_s,
+ u8 op_class, u8 chan,
+ const u8 *subelems, size_t len)
+{
+ int *freqs = NULL, *ext_freqs = NULL;
+ struct hostapd_hw_modes *mode;
+ const char *country = NULL;
+ const struct oper_class_map *op;
+ const u8 *elem;
+
+ if (!wpa_s->current_bss)
+ return NULL;
+ elem = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_COUNTRY);
+ if (elem && elem[1] >= 2)
+ country = (const char *) (elem + 2);
+
+ op = get_oper_class(country, op_class);
+ if (!op) {
+ wpa_printf(MSG_DEBUG,
+ "Beacon request: invalid operating class %d",
+ op_class);
+ return NULL;
+ }
+
+ mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, op->mode,
+ is_6ghz_op_class(op->op_class));
+ if (!mode)
+ return NULL;
+
+ switch (chan) {
+ case 0:
+ freqs = wpas_op_class_freqs(op, mode);
+ if (!freqs)
+ return NULL;
+ break;
+ case 255:
+ /* freqs will be added from AP channel subelements */
+ break;
+ default:
+ freqs = wpas_add_channels(op, mode, &chan, 1);
+ if (!freqs)
+ return NULL;
+ break;
+ }
+
+ ext_freqs = wpas_channel_report_freqs(wpa_s, country, subelems, len);
+ if (ext_freqs) {
+ int_array_concat(&freqs, ext_freqs);
+ os_free(ext_freqs);
+ int_array_sort_unique(freqs);
+ }
+
+ return freqs;
+}
+
+
+int wpas_get_op_chan_phy(int freq, const u8 *ies, size_t ies_len,
+ u8 *op_class, u8 *chan, u8 *phy_type)
+{
+ const u8 *ie;
+ int sec_chan = 0, vht = 0;
+ struct ieee80211_ht_operation *ht_oper = NULL;
+ struct ieee80211_vht_operation *vht_oper = NULL;
+ u8 seg0, seg1;
+
+ ie = get_ie(ies, ies_len, WLAN_EID_HT_OPERATION);
+ if (ie && ie[1] >= sizeof(struct ieee80211_ht_operation)) {
+ u8 sec_chan_offset;
+
+ ht_oper = (struct ieee80211_ht_operation *) (ie + 2);
+ sec_chan_offset = ht_oper->ht_param &
+ HT_INFO_HT_PARAM_SECONDARY_CHNL_OFF_MASK;
+ if (sec_chan_offset == HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE)
+ sec_chan = 1;
+ else if (sec_chan_offset ==
+ HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW)
+ sec_chan = -1;
+ }
+
+ ie = get_ie(ies, ies_len, WLAN_EID_VHT_OPERATION);
+ if (ie && ie[1] >= sizeof(struct ieee80211_vht_operation)) {
+ vht_oper = (struct ieee80211_vht_operation *) (ie + 2);
+
+ switch (vht_oper->vht_op_info_chwidth) {
+ case CHANWIDTH_80MHZ:
+ seg0 = vht_oper->vht_op_info_chan_center_freq_seg0_idx;
+ seg1 = vht_oper->vht_op_info_chan_center_freq_seg1_idx;
+ if (seg1 && abs(seg1 - seg0) == 8)
+ vht = CONF_OPER_CHWIDTH_160MHZ;
+ else if (seg1)
+ vht = CONF_OPER_CHWIDTH_80P80MHZ;
+ else
+ vht = CONF_OPER_CHWIDTH_80MHZ;
+ break;
+ case CHANWIDTH_160MHZ:
+ vht = CONF_OPER_CHWIDTH_160MHZ;
+ break;
+ case CHANWIDTH_80P80MHZ:
+ vht = CONF_OPER_CHWIDTH_80P80MHZ;
+ break;
+ default:
+ vht = CONF_OPER_CHWIDTH_USE_HT;
+ break;
+ }
+ }
+
+ if (ieee80211_freq_to_channel_ext(freq, sec_chan, vht, op_class,
+ chan) == NUM_HOSTAPD_MODES) {
+ wpa_printf(MSG_DEBUG,
+ "Cannot determine operating class and channel");
+ return -1;
+ }
+
+ *phy_type = ieee80211_get_phy_type(freq, ht_oper != NULL,
+ vht_oper != NULL);
+ if (*phy_type == PHY_TYPE_UNSPECIFIED) {
+ wpa_printf(MSG_DEBUG, "Cannot determine phy type");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static int wpas_beacon_rep_add_frame_body(struct bitfield *eids,
+ enum beacon_report_detail detail,
+ struct wpa_bss *bss, u8 *buf,
+ size_t buf_len, const u8 **ies_buf,
+ size_t *ie_len, int add_fixed)
+{
+ const u8 *ies = *ies_buf;
+ size_t ies_len = *ie_len;
+ u8 *pos = buf;
+ int rem_len;
+
+ rem_len = 255 - sizeof(struct rrm_measurement_beacon_report) -
+ sizeof(struct rrm_measurement_report_element) - 2 -
+ REPORTED_FRAME_BODY_SUBELEM_LEN;
+
+ if (detail > BEACON_REPORT_DETAIL_ALL_FIELDS_AND_ELEMENTS) {
+ wpa_printf(MSG_DEBUG,
+ "Beacon Request: Invalid reporting detail: %d",
+ detail);
+ return -1;
+ }
+
+ if (detail == BEACON_REPORT_DETAIL_NONE)
+ return 0;
+
+ /*
+ * Minimal frame body subelement size: EID(1) + length(1) + TSF(8) +
+ * beacon interval(2) + capabilities(2) = 14 bytes
+ */
+ if (add_fixed && buf_len < 14)
+ return -1;
+
+ *pos++ = WLAN_BEACON_REPORT_SUBELEM_FRAME_BODY;
+ /* The length will be filled later */
+ pos++;
+
+ if (add_fixed) {
+ WPA_PUT_LE64(pos, bss->tsf);
+ pos += sizeof(bss->tsf);
+ WPA_PUT_LE16(pos, bss->beacon_int);
+ pos += 2;
+ WPA_PUT_LE16(pos, bss->caps);
+ pos += 2;
+ }
+
+ rem_len -= pos - buf;
+
+ /*
+ * According to IEEE Std 802.11-2016, 9.4.2.22.7, if the reported frame
+ * body subelement causes the element to exceed the maximum element
+ * size, the subelement is truncated so that the last IE is a complete
+ * IE. So even when required to report all IEs, add elements one after
+ * the other and stop once there is no more room in the measurement
+ * element.
+ */
+ while (ies_len > 2 && 2U + ies[1] <= ies_len && rem_len > 0) {
+ if (detail == BEACON_REPORT_DETAIL_ALL_FIELDS_AND_ELEMENTS ||
+ (eids && bitfield_is_set(eids, ies[0]))) {
+ u8 elen = ies[1];
+
+ if (2 + elen > buf + buf_len - pos ||
+ 2 + elen > rem_len)
+ break;
+
+ *pos++ = ies[0];
+ *pos++ = elen;
+ os_memcpy(pos, ies + 2, elen);
+ pos += elen;
+ rem_len -= 2 + elen;
+ }
+
+ ies_len -= 2 + ies[1];
+ ies += 2 + ies[1];
+ }
+
+ *ie_len = ies_len;
+ *ies_buf = ies;
+
+ /* Now the length is known */
+ buf[1] = pos - buf - 2;
+ return pos - buf;
+}
+
+
+static int wpas_add_beacon_rep_elem(struct beacon_rep_data *data,
+ struct wpa_bss *bss,
+ struct wpabuf **wpa_buf,
+ struct rrm_measurement_beacon_report *rep,
+ const u8 **ie, size_t *ie_len, u8 idx)
+{
+ int ret;
+ u8 *buf, *pos;
+ u32 subelems_len = REPORTED_FRAME_BODY_SUBELEM_LEN +
+ (data->last_indication ?
+ BEACON_REPORT_LAST_INDICATION_SUBELEM_LEN : 0);
+
+ /* Maximum element length: Beacon Report element + Reported Frame Body
+ * subelement + all IEs of the reported Beacon frame + Reported Frame
+ * Body Fragment ID subelement */
+ buf = os_malloc(sizeof(*rep) + 14 + *ie_len + subelems_len);
+ if (!buf)
+ return -1;
+
+ os_memcpy(buf, rep, sizeof(*rep));
+
+ ret = wpas_beacon_rep_add_frame_body(data->eids, data->report_detail,
+ bss, buf + sizeof(*rep),
+ 14 + *ie_len, ie, ie_len,
+ idx == 0);
+ if (ret < 0)
+ goto out;
+
+ pos = buf + ret + sizeof(*rep);
+ pos[0] = WLAN_BEACON_REPORT_SUBELEM_FRAME_BODY_FRAGMENT_ID;
+ pos[1] = 2;
+
+ /*
+ * Only one Beacon Report Measurement is supported at a time, so
+ * the Beacon Report ID can always be set to 1.
+ */
+ pos[2] = 1;
+
+ /* Fragment ID Number (bits 0..6) and More Frame Body Fragments (bit 7)
+ */
+ pos[3] = idx;
+ if (data->report_detail != BEACON_REPORT_DETAIL_NONE && *ie_len)
+ pos[3] |= REPORTED_FRAME_BODY_MORE_FRAGMENTS;
+ else
+ pos[3] &= ~REPORTED_FRAME_BODY_MORE_FRAGMENTS;
+
+ pos += REPORTED_FRAME_BODY_SUBELEM_LEN;
+
+ if (data->last_indication) {
+ pos[0] = WLAN_BEACON_REPORT_SUBELEM_LAST_INDICATION;
+ pos[1] = 1;
+
+ /* This field will be updated later if this is the last frame */
+ pos[2] = 0;
+ }
+
+ ret = wpas_rrm_report_elem(wpa_buf, data->token,
+ MEASUREMENT_REPORT_MODE_ACCEPT,
+ MEASURE_TYPE_BEACON, buf,
+ ret + sizeof(*rep) + subelems_len);
+out:
+ os_free(buf);
+ return ret;
+}
+
+
+static int wpas_add_beacon_rep(struct wpa_supplicant *wpa_s,
+ struct wpabuf **wpa_buf, struct wpa_bss *bss,
+ u64 start, u64 parent_tsf)
+{
+ struct beacon_rep_data *data = &wpa_s->beacon_rep_data;
+ const u8 *ies = wpa_bss_ie_ptr(bss);
+ const u8 *pos = ies;
+ size_t ies_len = bss->ie_len ? bss->ie_len : bss->beacon_ie_len;
+ struct rrm_measurement_beacon_report rep;
+ u8 idx = 0;
+
+ if (os_memcmp(data->bssid, broadcast_ether_addr, ETH_ALEN) != 0 &&
+ os_memcmp(data->bssid, bss->bssid, ETH_ALEN) != 0)
+ return 0;
+
+ if (data->ssid_len &&
+ (data->ssid_len != bss->ssid_len ||
+ os_memcmp(data->ssid, bss->ssid, bss->ssid_len) != 0))
+ return 0;
+
+ if (wpas_get_op_chan_phy(bss->freq, ies, ies_len, &rep.op_class,
+ &rep.channel, &rep.report_info) < 0)
+ return 0;
+
+ rep.start_time = host_to_le64(start);
+ rep.duration = host_to_le16(data->scan_params.duration);
+ rep.rcpi = rssi_to_rcpi(bss->level);
+ rep.rsni = 255; /* 255 indicates that RSNI is not available */
+ os_memcpy(rep.bssid, bss->bssid, ETH_ALEN);
+ rep.antenna_id = 0; /* unknown */
+ rep.parent_tsf = host_to_le32(parent_tsf);
+
+ do {
+ int ret;
+
+ ret = wpas_add_beacon_rep_elem(data, bss, wpa_buf, &rep,
+ &pos, &ies_len, idx++);
+ if (ret)
+ return ret;
+ } while (data->report_detail != BEACON_REPORT_DETAIL_NONE &&
+ ies_len >= 2);
+
+ return 0;
+}
+
+
+static int wpas_beacon_rep_no_results(struct wpa_supplicant *wpa_s,
+ struct wpabuf **buf)
+{
+ return wpas_rrm_report_elem(buf, wpa_s->beacon_rep_data.token,
+ MEASUREMENT_REPORT_MODE_ACCEPT,
+ MEASURE_TYPE_BEACON, NULL, 0);
+}
+
+
+static void wpas_beacon_rep_table(struct wpa_supplicant *wpa_s,
+ struct wpabuf **buf)
+{
+ size_t i;
+
+ for (i = 0; i < wpa_s->last_scan_res_used; i++) {
+ if (wpas_add_beacon_rep(wpa_s, buf, wpa_s->last_scan_res[i],
+ 0, 0) < 0)
+ break;
+ }
+
+ if (!(*buf))
+ wpas_beacon_rep_no_results(wpa_s, buf);
+
+ wpa_hexdump_buf(MSG_DEBUG, "RRM: Radio Measurement report", *buf);
+}
+
+
+void wpas_rrm_refuse_request(struct wpa_supplicant *wpa_s)
+{
+ if (!is_multicast_ether_addr(wpa_s->rrm.dst_addr)) {
+ struct wpabuf *buf = NULL;
+
+ if (wpas_rrm_report_elem(&buf, wpa_s->beacon_rep_data.token,
+ MEASUREMENT_REPORT_MODE_REJECT_REFUSED,
+ MEASURE_TYPE_BEACON, NULL, 0)) {
+ wpa_printf(MSG_ERROR, "RRM: Memory allocation failed");
+ wpabuf_free(buf);
+ return;
+ }
+
+ wpas_rrm_send_msr_report(wpa_s, buf);
+ wpabuf_free(buf);
+ }
+
+ wpas_clear_beacon_rep_data(wpa_s);
+}
+
+
+static void wpas_rrm_scan_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct wpa_supplicant *wpa_s = eloop_ctx;
+ struct wpa_driver_scan_params *params =
+ &wpa_s->beacon_rep_data.scan_params;
+ u16 prev_duration = params->duration;
+
+ if (!wpa_s->current_bss)
+ return;
+
+ if (!(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_SET_SCAN_DWELL) &&
+ params->duration) {
+ wpa_printf(MSG_DEBUG,
+ "RRM: Cannot set scan duration due to missing driver support");
+ params->duration = 0;
+ }
+ os_get_reltime(&wpa_s->beacon_rep_scan);
+ if (wpa_s->scanning || wpas_p2p_in_progress(wpa_s) ||
+ wpa_supplicant_trigger_scan(wpa_s, params))
+ wpas_rrm_refuse_request(wpa_s);
+ params->duration = prev_duration;
+}
+
+
+static int wpas_rm_handle_beacon_req_subelem(struct wpa_supplicant *wpa_s,
+ struct beacon_rep_data *data,
+ u8 sid, u8 slen, const u8 *subelem)
+{
+ u8 report_info, i;
+
+ switch (sid) {
+ case WLAN_BEACON_REQUEST_SUBELEM_SSID:
+ if (!slen) {
+ wpa_printf(MSG_DEBUG,
+ "SSID subelement with zero length - wildcard SSID");
+ break;
+ }
+
+ if (slen > SSID_MAX_LEN) {
+ wpa_printf(MSG_DEBUG,
+ "Invalid SSID subelement length: %u", slen);
+ return -1;
+ }
+
+ data->ssid_len = slen;
+ os_memcpy(data->ssid, subelem, data->ssid_len);
+ break;
+ case WLAN_BEACON_REQUEST_SUBELEM_INFO:
+ if (slen != 2) {
+ wpa_printf(MSG_DEBUG,
+ "Invalid reporting information subelement length: %u",
+ slen);
+ return -1;
+ }
+
+ report_info = subelem[0];
+ if (report_info != 0) {
+ wpa_printf(MSG_DEBUG,
+ "reporting information=%u is not supported",
+ report_info);
+ return 0;
+ }
+ break;
+ case WLAN_BEACON_REQUEST_SUBELEM_DETAIL:
+ if (slen != 1) {
+ wpa_printf(MSG_DEBUG,
+ "Invalid reporting detail subelement length: %u",
+ slen);
+ return -1;
+ }
+
+ data->report_detail = subelem[0];
+ if (data->report_detail >
+ BEACON_REPORT_DETAIL_ALL_FIELDS_AND_ELEMENTS) {
+ wpa_printf(MSG_DEBUG, "Invalid reporting detail: %u",
+ subelem[0]);
+ return -1;
+ }
+
+ break;
+ case WLAN_BEACON_REQUEST_SUBELEM_REQUEST:
+ if (data->report_detail !=
+ BEACON_REPORT_DETAIL_REQUESTED_ONLY) {
+ wpa_printf(MSG_DEBUG,
+ "Beacon request: request subelement is present but report detail is %u",
+ data->report_detail);
+ return -1;
+ }
+
+ if (!slen) {
+ wpa_printf(MSG_DEBUG,
+ "Invalid request subelement length: %u",
+ slen);
+ return -1;
+ }
+
+ if (data->eids) {
+ wpa_printf(MSG_DEBUG,
+ "Beacon Request: Request subelement appears more than once");
+ return -1;
+ }
+
+ data->eids = bitfield_alloc(255);
+ if (!data->eids) {
+ wpa_printf(MSG_DEBUG, "Failed to allocate EIDs bitmap");
+ return -1;
+ }
+
+ for (i = 0; i < slen; i++)
+ bitfield_set(data->eids, subelem[i]);
+ break;
+ case WLAN_BEACON_REQUEST_SUBELEM_AP_CHANNEL:
+ /* Skip - it will be processed when freqs are added */
+ break;
+ case WLAN_BEACON_REQUEST_SUBELEM_LAST_INDICATION:
+ if (slen != 1) {
+ wpa_printf(MSG_DEBUG,
+ "Beacon request: Invalid last indication request subelement length: %u",
+ slen);
+ return -1;
+ }
+
+ data->last_indication = subelem[0];
+ break;
+ default:
+ wpa_printf(MSG_DEBUG,
+ "Beacon request: Unknown subelement id %u", sid);
+ break;
+ }
+
+ return 1;
+}
+
+
+/**
+ * Returns 0 if the next element can be processed, 1 if some operation was
+ * triggered, and -1 if processing failed (i.e., the element is in invalid
+ * format or an internal error occurred).
+ */
+static int
+wpas_rm_handle_beacon_req(struct wpa_supplicant *wpa_s,
+ u8 elem_token, int duration_mandatory,
+ const struct rrm_measurement_beacon_request *req,
+ size_t len, struct wpabuf **buf)
+{
+ struct beacon_rep_data *data = &wpa_s->beacon_rep_data;
+ struct wpa_driver_scan_params *params = &data->scan_params;
+ const u8 *subelems;
+ size_t elems_len;
+ u16 rand_interval;
+ u32 interval_usec;
+ u32 _rand;
+ int ret = 0, res;
+ u8 reject_mode;
+
+ if (len < sizeof(*req))
+ return -1;
+
+ if (req->mode != BEACON_REPORT_MODE_PASSIVE &&
+ req->mode != BEACON_REPORT_MODE_ACTIVE &&
+ req->mode != BEACON_REPORT_MODE_TABLE)
+ return 0;
+
+ subelems = req->variable;
+ elems_len = len - sizeof(*req);
+ rand_interval = le_to_host16(req->rand_interval);
+
+ os_free(params->freqs);
+ os_memset(params, 0, sizeof(*params));
+
+ data->token = elem_token;
+
+ /* default reporting detail is all fixed length fields and all
+ * elements */
+ data->report_detail = BEACON_REPORT_DETAIL_ALL_FIELDS_AND_ELEMENTS;
+ os_memcpy(data->bssid, req->bssid, ETH_ALEN);
+
+ while (elems_len >= 2) {
+ if (subelems[1] > elems_len - 2) {
+ wpa_printf(MSG_DEBUG,
+ "Beacon Request: Truncated subelement");
+ ret = -1;
+ goto out;
+ }
+
+ res = wpas_rm_handle_beacon_req_subelem(
+ wpa_s, data, subelems[0], subelems[1], &subelems[2]);
+ if (res < 0) {
+ ret = res;
+ goto out;
+ } else if (!res) {
+ reject_mode = MEASUREMENT_REPORT_MODE_REJECT_INCAPABLE;
+ goto out_reject;
+ }
+
+ elems_len -= 2 + subelems[1];
+ subelems += 2 + subelems[1];
+ }
+
+ if (req->mode == BEACON_REPORT_MODE_TABLE) {
+ wpas_beacon_rep_table(wpa_s, buf);
+ goto out;
+ }
+
+ params->freqs = wpas_beacon_request_freqs(wpa_s, req->oper_class,
+ req->channel, req->variable,
+ len - sizeof(*req));
+ if (!params->freqs) {
+ wpa_printf(MSG_DEBUG, "Beacon request: No valid channels");
+ reject_mode = MEASUREMENT_REPORT_MODE_REJECT_REFUSED;
+ goto out_reject;
+ }
+
+ params->duration = le_to_host16(req->duration);
+ params->duration_mandatory = duration_mandatory;
+ if (!params->duration) {
+ wpa_printf(MSG_DEBUG, "Beacon request: Duration is 0");
+ ret = -1;
+ goto out;
+ }
+
+ params->only_new_results = 1;
+
+ if (req->mode == BEACON_REPORT_MODE_ACTIVE) {
+ params->ssids[params->num_ssids].ssid = data->ssid;
+ params->ssids[params->num_ssids++].ssid_len = data->ssid_len;
+ }
+
+ if (os_get_random((u8 *) &_rand, sizeof(_rand)) < 0)
+ _rand = os_random();
+ interval_usec = (_rand % (rand_interval + 1)) * 1024;
+ eloop_register_timeout(0, interval_usec, wpas_rrm_scan_timeout, wpa_s,
+ NULL);
+ return 1;
+out_reject:
+ if (!is_multicast_ether_addr(wpa_s->rrm.dst_addr) &&
+ wpas_rrm_report_elem(buf, elem_token, reject_mode,
+ MEASURE_TYPE_BEACON, NULL, 0) < 0) {
+ wpa_printf(MSG_DEBUG, "RRM: Failed to add report element");
+ ret = -1;
+ }
+out:
+ wpas_clear_beacon_rep_data(wpa_s);
+ return ret;
+}
+
+
+static int
+wpas_rrm_handle_msr_req_element(
+ struct wpa_supplicant *wpa_s,
+ const struct rrm_measurement_request_element *req,
+ struct wpabuf **buf)
+{
+ int duration_mandatory;
+
+ wpa_printf(MSG_DEBUG, "Measurement request type %d token %d",
+ req->type, req->token);
+
+ if (req->mode & MEASUREMENT_REQUEST_MODE_ENABLE) {
+ /* Enable bit is not supported for now */
+ wpa_printf(MSG_DEBUG, "RRM: Enable bit not supported, ignore");
+ return 0;
+ }
+
+ if ((req->mode & MEASUREMENT_REQUEST_MODE_PARALLEL) &&
+ req->type > MEASURE_TYPE_RPI_HIST) {
+ /* Parallel measurements are not supported for now */
+ wpa_printf(MSG_DEBUG,
+ "RRM: Parallel measurements are not supported, reject");
+ goto reject;
+ }
+
+ duration_mandatory =
+ !!(req->mode & MEASUREMENT_REQUEST_MODE_DURATION_MANDATORY);
+
+ switch (req->type) {
+ case MEASURE_TYPE_LCI:
+ return wpas_rrm_build_lci_report(wpa_s, req, buf);
+ case MEASURE_TYPE_BEACON:
+ if (duration_mandatory &&
+ !(wpa_s->drv_rrm_flags &
+ WPA_DRIVER_FLAGS_SUPPORT_SET_SCAN_DWELL)) {
+ wpa_printf(MSG_DEBUG,
+ "RRM: Driver does not support dwell time configuration - reject beacon report with mandatory duration");
+ goto reject;
+ }
+ return wpas_rm_handle_beacon_req(wpa_s, req->token,
+ duration_mandatory,
+ (const void *) req->variable,
+ req->len - 3, buf);
+ default:
+ wpa_printf(MSG_INFO,
+ "RRM: Unsupported radio measurement type %u",
+ req->type);
+ break;
+ }
+
+reject:
+ if (!is_multicast_ether_addr(wpa_s->rrm.dst_addr) &&
+ wpas_rrm_report_elem(buf, req->token,
+ MEASUREMENT_REPORT_MODE_REJECT_INCAPABLE,
+ req->type, NULL, 0) < 0) {
+ wpa_printf(MSG_DEBUG, "RRM: Failed to add report element");
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static struct wpabuf *
+wpas_rrm_process_msr_req_elems(struct wpa_supplicant *wpa_s, const u8 *pos,
+ size_t len)
+{
+ struct wpabuf *buf = NULL;
+
+ while (len) {
+ const struct rrm_measurement_request_element *req;
+ int res;
+
+ if (len < 2) {
+ wpa_printf(MSG_DEBUG, "RRM: Truncated element");
+ goto out;
+ }
+
+ req = (const struct rrm_measurement_request_element *) pos;
+ if (req->eid != WLAN_EID_MEASURE_REQUEST) {
+ wpa_printf(MSG_DEBUG,
+ "RRM: Expected Measurement Request element, but EID is %u",
+ req->eid);
+ goto out;
+ }
+
+ if (req->len < 3) {
+ wpa_printf(MSG_DEBUG, "RRM: Element length too short");
+ goto out;
+ }
+
+ if (req->len > len - 2) {
+ wpa_printf(MSG_DEBUG, "RRM: Element length too long");
+ goto out;
+ }
+
+ res = wpas_rrm_handle_msr_req_element(wpa_s, req, &buf);
+ if (res < 0)
+ goto out;
+
+ pos += req->len + 2;
+ len -= req->len + 2;
+ }
+
+ return buf;
+
+out:
+ wpabuf_free(buf);
+ return NULL;
+}
+
+
+void wpas_rrm_handle_radio_measurement_request(struct wpa_supplicant *wpa_s,
+ const u8 *src, const u8 *dst,
+ const u8 *frame, size_t len)
+{
+ struct wpabuf *report;
+
+ if (wpa_s->wpa_state != WPA_COMPLETED) {
+ wpa_printf(MSG_INFO,
+ "RRM: Ignoring radio measurement request: Not associated");
+ return;
+ }
+
+ if (!wpa_s->rrm.rrm_used) {
+ wpa_printf(MSG_INFO,
+ "RRM: Ignoring radio measurement request: Not RRM network");
+ return;
+ }
+
+ if (len < 3) {
+ wpa_printf(MSG_INFO,
+ "RRM: Ignoring too short radio measurement request");
+ return;
+ }
+
+ wpa_s->rrm.token = *frame;
+ os_memcpy(wpa_s->rrm.dst_addr, dst, ETH_ALEN);
+
+ /* Number of repetitions is not supported */
+
+ report = wpas_rrm_process_msr_req_elems(wpa_s, frame + 3, len - 3);
+ if (!report)
+ return;
+
+ wpas_rrm_send_msr_report(wpa_s, report);
+ wpabuf_free(report);
+}
+
+
+void wpas_rrm_handle_link_measurement_request(struct wpa_supplicant *wpa_s,
+ const u8 *src,
+ const u8 *frame, size_t len,
+ int rssi)
+{
+ struct wpabuf *buf;
+ const struct rrm_link_measurement_request *req;
+ struct rrm_link_measurement_report report;
+
+ if (wpa_s->wpa_state != WPA_COMPLETED) {
+ wpa_printf(MSG_INFO,
+ "RRM: Ignoring link measurement request. Not associated");
+ return;
+ }
+
+ if (!wpa_s->rrm.rrm_used) {
+ wpa_printf(MSG_INFO,
+ "RRM: Ignoring link measurement request. Not RRM network");
+ return;
+ }
+
+ if (!(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION)) {
+ wpa_printf(MSG_INFO,
+ "RRM: Measurement report failed. TX power insertion not supported");
+ return;
+ }
+
+ req = (const struct rrm_link_measurement_request *) frame;
+ if (len < sizeof(*req)) {
+ wpa_printf(MSG_INFO,
+ "RRM: Link measurement report failed. Request too short");
+ return;
+ }
+
+ os_memset(&report, 0, sizeof(report));
+ report.dialog_token = req->dialog_token;
+ report.tpc.eid = WLAN_EID_TPC_REPORT;
+ report.tpc.len = 2;
+ /* Note: The driver is expected to update report.tpc.tx_power and
+ * report.tpc.link_margin subfields when sending out this frame.
+ * Similarly, the driver would need to update report.rx_ant_id and
+ * report.tx_ant_id subfields. */
+ report.rsni = 255; /* 255 indicates that RSNI is not available */
+ report.rcpi = rssi_to_rcpi(rssi);
+
+ /* action_category + action_code */
+ buf = wpabuf_alloc(2 + sizeof(report));
+ if (buf == NULL) {
+ wpa_printf(MSG_ERROR,
+ "RRM: Link measurement report failed. Buffer allocation failed");
+ return;
+ }
+
+ wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT);
+ wpabuf_put_u8(buf, WLAN_RRM_LINK_MEASUREMENT_REPORT);
+ wpabuf_put_data(buf, &report, sizeof(report));
+ wpa_hexdump_buf(MSG_DEBUG, "RRM: Link measurement report", buf);
+
+ if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src,
+ wpa_s->own_addr, wpa_s->bssid,
+ wpabuf_head(buf), wpabuf_len(buf), 0)) {
+ wpa_printf(MSG_ERROR,
+ "RRM: Link measurement report failed. Send action failed");
+ }
+ wpabuf_free(buf);
+}
+
+
+int wpas_beacon_rep_scan_process(struct wpa_supplicant *wpa_s,
+ struct wpa_scan_results *scan_res,
+ struct scan_info *info)
+{
+ size_t i = 0;
+ struct wpabuf *buf = NULL;
+
+ if (!wpa_s->beacon_rep_data.token)
+ return 0;
+
+ if (!wpa_s->current_bss)
+ goto out;
+
+ /* If the measurement was aborted, don't report partial results */
+ if (info->aborted)
+ goto out;
+
+ wpa_printf(MSG_DEBUG, "RRM: TSF BSSID: " MACSTR " current BSS: " MACSTR,
+ MAC2STR(info->scan_start_tsf_bssid),
+ MAC2STR(wpa_s->current_bss->bssid));
+ if ((wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_BEACON_REPORT) &&
+ os_memcmp(info->scan_start_tsf_bssid, wpa_s->current_bss->bssid,
+ ETH_ALEN) != 0) {
+ wpa_printf(MSG_DEBUG,
+ "RRM: Ignore scan results due to mismatching TSF BSSID");
+ goto out;
+ }
+
+ for (i = 0; i < scan_res->num; i++) {
+ struct wpa_bss *bss =
+ wpa_bss_get_bssid(wpa_s, scan_res->res[i]->bssid);
+
+ if (!bss)
+ continue;
+
+ if ((wpa_s->drv_rrm_flags &
+ WPA_DRIVER_FLAGS_SUPPORT_BEACON_REPORT) &&
+ os_memcmp(scan_res->res[i]->tsf_bssid,
+ wpa_s->current_bss->bssid, ETH_ALEN) != 0) {
+ wpa_printf(MSG_DEBUG,
+ "RRM: Ignore scan result for " MACSTR
+ " due to mismatching TSF BSSID" MACSTR,
+ MAC2STR(scan_res->res[i]->bssid),
+ MAC2STR(scan_res->res[i]->tsf_bssid));
+ continue;
+ }
+
+ /*
+ * Don't report results that were not received during the
+ * current measurement.
+ */
+ if (!(wpa_s->drv_rrm_flags &
+ WPA_DRIVER_FLAGS_SUPPORT_BEACON_REPORT)) {
+ struct os_reltime update_time, diff;
+
+ /* For now, allow 8 ms older results due to some
+ * unknown issue with cfg80211 BSS table updates during
+ * a scan with the current BSS.
+ * TODO: Fix this more properly to avoid having to have
+ * this type of hacks in place. */
+ calculate_update_time(&scan_res->fetch_time,
+ scan_res->res[i]->age,
+ &update_time);
+ os_reltime_sub(&wpa_s->beacon_rep_scan,
+ &update_time, &diff);
+ if (os_reltime_before(&update_time,
+ &wpa_s->beacon_rep_scan) &&
+ (diff.sec || diff.usec >= 8000)) {
+ wpa_printf(MSG_DEBUG,
+ "RRM: Ignore scan result for " MACSTR
+ " due to old update (age(ms) %u, calculated age %u.%06u seconds)",
+ MAC2STR(scan_res->res[i]->bssid),
+ scan_res->res[i]->age,
+ (unsigned int) diff.sec,
+ (unsigned int) diff.usec);
+ continue;
+ }
+ } else if (info->scan_start_tsf >
+ scan_res->res[i]->parent_tsf) {
+ continue;
+ }
+
+ if (wpas_add_beacon_rep(wpa_s, &buf, bss, info->scan_start_tsf,
+ scan_res->res[i]->parent_tsf) < 0)
+ break;
+ }
+
+ if (!buf && wpas_beacon_rep_no_results(wpa_s, &buf))
+ goto out;
+
+ wpa_hexdump_buf(MSG_DEBUG, "RRM: Radio Measurement report", buf);
+
+ wpas_rrm_send_msr_report(wpa_s, buf);
+ wpabuf_free(buf);
+
+out:
+ wpas_clear_beacon_rep_data(wpa_s);
+ return 1;
+}
+
+
+void wpas_clear_beacon_rep_data(struct wpa_supplicant *wpa_s)
+{
+ struct beacon_rep_data *data = &wpa_s->beacon_rep_data;
+
+ eloop_cancel_timeout(wpas_rrm_scan_timeout, wpa_s, NULL);
+ bitfield_free(data->eids);
+ os_free(data->scan_params.freqs);
+ os_memset(data, 0, sizeof(*data));
+}