1341618Scy/* 2341618Scy * wpa_supplicant - Radio Measurements 3341618Scy * Copyright (c) 2003-2016, Jouni Malinen <j@w1.fi> 4341618Scy * 5341618Scy * This software may be distributed under the terms of the BSD license. 6341618Scy * See README for more details. 7341618Scy */ 8341618Scy 9341618Scy#include "includes.h" 10341618Scy 11341618Scy#include "utils/common.h" 12341618Scy#include "utils/eloop.h" 13341618Scy#include "common/ieee802_11_common.h" 14341618Scy#include "wpa_supplicant_i.h" 15341618Scy#include "driver_i.h" 16341618Scy#include "bss.h" 17341618Scy#include "scan.h" 18341618Scy#include "p2p_supplicant.h" 19341618Scy 20341618Scy 21341618Scystatic void wpas_rrm_neighbor_rep_timeout_handler(void *data, void *user_ctx) 22341618Scy{ 23341618Scy struct rrm_data *rrm = data; 24341618Scy 25341618Scy if (!rrm->notify_neighbor_rep) { 26341618Scy wpa_printf(MSG_ERROR, 27341618Scy "RRM: Unexpected neighbor report timeout"); 28341618Scy return; 29341618Scy } 30341618Scy 31341618Scy wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report - NONE"); 32341618Scy rrm->notify_neighbor_rep(rrm->neighbor_rep_cb_ctx, NULL); 33341618Scy 34341618Scy rrm->notify_neighbor_rep = NULL; 35341618Scy rrm->neighbor_rep_cb_ctx = NULL; 36341618Scy} 37341618Scy 38341618Scy 39341618Scy/* 40341618Scy * wpas_rrm_reset - Clear and reset all RRM data in wpa_supplicant 41341618Scy * @wpa_s: Pointer to wpa_supplicant 42341618Scy */ 43341618Scyvoid wpas_rrm_reset(struct wpa_supplicant *wpa_s) 44341618Scy{ 45341618Scy wpa_s->rrm.rrm_used = 0; 46341618Scy 47341618Scy eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm, 48341618Scy NULL); 49341618Scy if (wpa_s->rrm.notify_neighbor_rep) 50341618Scy wpas_rrm_neighbor_rep_timeout_handler(&wpa_s->rrm, NULL); 51341618Scy wpa_s->rrm.next_neighbor_rep_token = 1; 52341618Scy wpas_clear_beacon_rep_data(wpa_s); 53341618Scy} 54341618Scy 55341618Scy 56341618Scy/* 57341618Scy * wpas_rrm_process_neighbor_rep - Handle incoming neighbor report 58341618Scy * @wpa_s: Pointer to wpa_supplicant 59341618Scy * @report: Neighbor report buffer, prefixed by a 1-byte dialog token 60341618Scy * @report_len: Length of neighbor report buffer 61341618Scy */ 62341618Scyvoid wpas_rrm_process_neighbor_rep(struct wpa_supplicant *wpa_s, 63341618Scy const u8 *report, size_t report_len) 64341618Scy{ 65341618Scy struct wpabuf *neighbor_rep; 66341618Scy 67341618Scy wpa_hexdump(MSG_DEBUG, "RRM: New Neighbor Report", report, report_len); 68341618Scy if (report_len < 1) 69341618Scy return; 70341618Scy 71341618Scy if (report[0] != wpa_s->rrm.next_neighbor_rep_token - 1) { 72341618Scy wpa_printf(MSG_DEBUG, 73341618Scy "RRM: Discarding neighbor report with token %d (expected %d)", 74341618Scy report[0], wpa_s->rrm.next_neighbor_rep_token - 1); 75341618Scy return; 76341618Scy } 77341618Scy 78341618Scy eloop_cancel_timeout(wpas_rrm_neighbor_rep_timeout_handler, &wpa_s->rrm, 79341618Scy NULL); 80341618Scy 81341618Scy if (!wpa_s->rrm.notify_neighbor_rep) { 82341618Scy wpa_printf(MSG_ERROR, "RRM: Unexpected neighbor report"); 83341618Scy return; 84341618Scy } 85341618Scy 86341618Scy /* skipping the first byte, which is only an id (dialog token) */ 87341618Scy neighbor_rep = wpabuf_alloc(report_len - 1); 88341618Scy if (!neighbor_rep) { 89341618Scy wpas_rrm_neighbor_rep_timeout_handler(&wpa_s->rrm, NULL); 90341618Scy return; 91341618Scy } 92341618Scy wpabuf_put_data(neighbor_rep, report + 1, report_len - 1); 93341618Scy wpa_printf(MSG_DEBUG, "RRM: Notifying neighbor report (token = %d)", 94341618Scy report[0]); 95341618Scy wpa_s->rrm.notify_neighbor_rep(wpa_s->rrm.neighbor_rep_cb_ctx, 96341618Scy neighbor_rep); 97341618Scy wpa_s->rrm.notify_neighbor_rep = NULL; 98341618Scy wpa_s->rrm.neighbor_rep_cb_ctx = NULL; 99341618Scy} 100341618Scy 101341618Scy 102341618Scy#if defined(__CYGWIN__) || defined(CONFIG_NATIVE_WINDOWS) 103341618Scy/* Workaround different, undefined for Windows, error codes used here */ 104341618Scy#define ENOTCONN -1 105341618Scy#define EOPNOTSUPP -1 106341618Scy#define ECANCELED -1 107341618Scy#endif 108341618Scy 109341618Scy/* Measurement Request element + Location Subject + Maximum Age subelement */ 110341618Scy#define MEASURE_REQUEST_LCI_LEN (3 + 1 + 4) 111341618Scy/* Measurement Request element + Location Civic Request */ 112341618Scy#define MEASURE_REQUEST_CIVIC_LEN (3 + 5) 113341618Scy 114341618Scy 115341618Scy/** 116341618Scy * wpas_rrm_send_neighbor_rep_request - Request a neighbor report from our AP 117341618Scy * @wpa_s: Pointer to wpa_supplicant 118341618Scy * @ssid: if not null, this is sent in the request. Otherwise, no SSID IE 119341618Scy * is sent in the request. 120341618Scy * @lci: if set, neighbor request will include LCI request 121341618Scy * @civic: if set, neighbor request will include civic location request 122341618Scy * @cb: Callback function to be called once the requested report arrives, or 123341618Scy * timed out after RRM_NEIGHBOR_REPORT_TIMEOUT seconds. 124341618Scy * In the former case, 'neighbor_rep' is a newly allocated wpabuf, and it's 125341618Scy * the requester's responsibility to free it. 126341618Scy * In the latter case NULL will be sent in 'neighbor_rep'. 127341618Scy * @cb_ctx: Context value to send the callback function 128341618Scy * Returns: 0 in case of success, negative error code otherwise 129341618Scy * 130341618Scy * In case there is a previous request which has not been answered yet, the 131341618Scy * new request fails. The caller may retry after RRM_NEIGHBOR_REPORT_TIMEOUT. 132341618Scy * Request must contain a callback function. 133341618Scy */ 134341618Scyint wpas_rrm_send_neighbor_rep_request(struct wpa_supplicant *wpa_s, 135341618Scy const struct wpa_ssid_value *ssid, 136341618Scy int lci, int civic, 137341618Scy void (*cb)(void *ctx, 138341618Scy struct wpabuf *neighbor_rep), 139341618Scy void *cb_ctx) 140341618Scy{ 141341618Scy struct wpabuf *buf; 142341618Scy const u8 *rrm_ie; 143341618Scy 144341618Scy if (wpa_s->wpa_state != WPA_COMPLETED || wpa_s->current_ssid == NULL) { 145341618Scy wpa_printf(MSG_DEBUG, "RRM: No connection, no RRM."); 146341618Scy return -ENOTCONN; 147341618Scy } 148341618Scy 149341618Scy if (!wpa_s->rrm.rrm_used) { 150341618Scy wpa_printf(MSG_DEBUG, "RRM: No RRM in current connection."); 151341618Scy return -EOPNOTSUPP; 152341618Scy } 153341618Scy 154341618Scy rrm_ie = wpa_bss_get_ie(wpa_s->current_bss, 155341618Scy WLAN_EID_RRM_ENABLED_CAPABILITIES); 156341618Scy if (!rrm_ie || !(wpa_s->current_bss->caps & IEEE80211_CAP_RRM) || 157341618Scy !(rrm_ie[2] & WLAN_RRM_CAPS_NEIGHBOR_REPORT)) { 158341618Scy wpa_printf(MSG_DEBUG, 159341618Scy "RRM: No network support for Neighbor Report."); 160341618Scy return -EOPNOTSUPP; 161341618Scy } 162341618Scy 163341618Scy /* Refuse if there's a live request */ 164341618Scy if (wpa_s->rrm.notify_neighbor_rep) { 165341618Scy wpa_printf(MSG_DEBUG, 166341618Scy "RRM: Currently handling previous Neighbor Report."); 167341618Scy return -EBUSY; 168341618Scy } 169341618Scy 170341618Scy /* 3 = action category + action code + dialog token */ 171341618Scy buf = wpabuf_alloc(3 + (ssid ? 2 + ssid->ssid_len : 0) + 172341618Scy (lci ? 2 + MEASURE_REQUEST_LCI_LEN : 0) + 173341618Scy (civic ? 2 + MEASURE_REQUEST_CIVIC_LEN : 0)); 174341618Scy if (buf == NULL) { 175341618Scy wpa_printf(MSG_DEBUG, 176341618Scy "RRM: Failed to allocate Neighbor Report Request"); 177341618Scy return -ENOMEM; 178341618Scy } 179341618Scy 180341618Scy wpa_printf(MSG_DEBUG, "RRM: Neighbor report request (for %s), token=%d", 181341618Scy (ssid ? wpa_ssid_txt(ssid->ssid, ssid->ssid_len) : ""), 182341618Scy wpa_s->rrm.next_neighbor_rep_token); 183341618Scy 184341618Scy wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT); 185341618Scy wpabuf_put_u8(buf, WLAN_RRM_NEIGHBOR_REPORT_REQUEST); 186341618Scy wpabuf_put_u8(buf, wpa_s->rrm.next_neighbor_rep_token); 187341618Scy if (ssid) { 188341618Scy wpabuf_put_u8(buf, WLAN_EID_SSID); 189341618Scy wpabuf_put_u8(buf, ssid->ssid_len); 190341618Scy wpabuf_put_data(buf, ssid->ssid, ssid->ssid_len); 191341618Scy } 192341618Scy 193341618Scy if (lci) { 194341618Scy /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */ 195341618Scy wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST); 196341618Scy wpabuf_put_u8(buf, MEASURE_REQUEST_LCI_LEN); 197341618Scy 198341618Scy /* 199341618Scy * Measurement token; nonzero number that is unique among the 200341618Scy * Measurement Request elements in a particular frame. 201341618Scy */ 202341618Scy wpabuf_put_u8(buf, 1); /* Measurement Token */ 203341618Scy 204341618Scy /* 205341618Scy * Parallel, Enable, Request, and Report bits are 0, Duration is 206341618Scy * reserved. 207341618Scy */ 208341618Scy wpabuf_put_u8(buf, 0); /* Measurement Request Mode */ 209341618Scy wpabuf_put_u8(buf, MEASURE_TYPE_LCI); /* Measurement Type */ 210341618Scy 211341618Scy /* IEEE P802.11-REVmc/D5.0 9.4.2.21.10 - LCI request */ 212341618Scy /* Location Subject */ 213341618Scy wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE); 214341618Scy 215341618Scy /* Optional Subelements */ 216341618Scy /* 217341618Scy * IEEE P802.11-REVmc/D5.0 Figure 9-170 218341618Scy * The Maximum Age subelement is required, otherwise the AP can 219341618Scy * send only data that was determined after receiving the 220341618Scy * request. Setting it here to unlimited age. 221341618Scy */ 222341618Scy wpabuf_put_u8(buf, LCI_REQ_SUBELEM_MAX_AGE); 223341618Scy wpabuf_put_u8(buf, 2); 224341618Scy wpabuf_put_le16(buf, 0xffff); 225341618Scy } 226341618Scy 227341618Scy if (civic) { 228341618Scy /* IEEE P802.11-REVmc/D5.0 9.4.2.21 */ 229341618Scy wpabuf_put_u8(buf, WLAN_EID_MEASURE_REQUEST); 230341618Scy wpabuf_put_u8(buf, MEASURE_REQUEST_CIVIC_LEN); 231341618Scy 232341618Scy /* 233341618Scy * Measurement token; nonzero number that is unique among the 234341618Scy * Measurement Request elements in a particular frame. 235341618Scy */ 236341618Scy wpabuf_put_u8(buf, 2); /* Measurement Token */ 237341618Scy 238341618Scy /* 239341618Scy * Parallel, Enable, Request, and Report bits are 0, Duration is 240341618Scy * reserved. 241341618Scy */ 242341618Scy wpabuf_put_u8(buf, 0); /* Measurement Request Mode */ 243341618Scy /* Measurement Type */ 244341618Scy wpabuf_put_u8(buf, MEASURE_TYPE_LOCATION_CIVIC); 245341618Scy 246341618Scy /* IEEE P802.11-REVmc/D5.0 9.4.2.21.14: 247341618Scy * Location Civic request */ 248341618Scy /* Location Subject */ 249341618Scy wpabuf_put_u8(buf, LOCATION_SUBJECT_REMOTE); 250341618Scy wpabuf_put_u8(buf, 0); /* Civic Location Type: IETF RFC 4776 */ 251341618Scy /* Location Service Interval Units: Seconds */ 252341618Scy wpabuf_put_u8(buf, 0); 253341618Scy /* Location Service Interval: 0 - Only one report is requested 254341618Scy */ 255341618Scy wpabuf_put_le16(buf, 0); 256341618Scy /* No optional subelements */ 257341618Scy } 258341618Scy 259341618Scy wpa_s->rrm.next_neighbor_rep_token++; 260341618Scy 261341618Scy if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid, 262341618Scy wpa_s->own_addr, wpa_s->bssid, 263341618Scy wpabuf_head(buf), wpabuf_len(buf), 0) < 0) { 264341618Scy wpa_printf(MSG_DEBUG, 265341618Scy "RRM: Failed to send Neighbor Report Request"); 266341618Scy wpabuf_free(buf); 267341618Scy return -ECANCELED; 268341618Scy } 269341618Scy 270341618Scy wpa_s->rrm.neighbor_rep_cb_ctx = cb_ctx; 271341618Scy wpa_s->rrm.notify_neighbor_rep = cb; 272341618Scy eloop_register_timeout(RRM_NEIGHBOR_REPORT_TIMEOUT, 0, 273341618Scy wpas_rrm_neighbor_rep_timeout_handler, 274341618Scy &wpa_s->rrm, NULL); 275341618Scy 276341618Scy wpabuf_free(buf); 277341618Scy return 0; 278341618Scy} 279341618Scy 280341618Scy 281341618Scystatic int wpas_rrm_report_elem(struct wpabuf **buf, u8 token, u8 mode, u8 type, 282341618Scy const u8 *data, size_t data_len) 283341618Scy{ 284341618Scy if (wpabuf_resize(buf, 5 + data_len)) 285341618Scy return -1; 286341618Scy 287341618Scy wpabuf_put_u8(*buf, WLAN_EID_MEASURE_REPORT); 288341618Scy wpabuf_put_u8(*buf, 3 + data_len); 289341618Scy wpabuf_put_u8(*buf, token); 290341618Scy wpabuf_put_u8(*buf, mode); 291341618Scy wpabuf_put_u8(*buf, type); 292341618Scy 293341618Scy if (data_len) 294341618Scy wpabuf_put_data(*buf, data, data_len); 295341618Scy 296341618Scy return 0; 297341618Scy} 298341618Scy 299341618Scy 300341618Scystatic int 301341618Scywpas_rrm_build_lci_report(struct wpa_supplicant *wpa_s, 302341618Scy const struct rrm_measurement_request_element *req, 303341618Scy struct wpabuf **buf) 304341618Scy{ 305341618Scy u8 subject; 306341618Scy u16 max_age = 0; 307341618Scy struct os_reltime t, diff; 308341618Scy unsigned long diff_l; 309341618Scy const u8 *subelem; 310341618Scy const u8 *request = req->variable; 311341618Scy size_t len = req->len - 3; 312341618Scy 313341618Scy if (len < 1) 314341618Scy return -1; 315341618Scy 316341618Scy if (!wpa_s->lci) 317341618Scy goto reject; 318341618Scy 319341618Scy subject = *request++; 320341618Scy len--; 321341618Scy 322341618Scy wpa_printf(MSG_DEBUG, "Measurement request location subject=%u", 323341618Scy subject); 324341618Scy 325341618Scy if (subject != LOCATION_SUBJECT_REMOTE) { 326341618Scy wpa_printf(MSG_INFO, 327341618Scy "Not building LCI report - bad location subject"); 328341618Scy return 0; 329341618Scy } 330341618Scy 331341618Scy /* Subelements are formatted exactly like elements */ 332341618Scy wpa_hexdump(MSG_DEBUG, "LCI request subelements", request, len); 333341618Scy subelem = get_ie(request, len, LCI_REQ_SUBELEM_MAX_AGE); 334341618Scy if (subelem && subelem[1] == 2) 335341618Scy max_age = WPA_GET_LE16(subelem + 2); 336341618Scy 337341618Scy if (os_get_reltime(&t)) 338341618Scy goto reject; 339341618Scy 340341618Scy os_reltime_sub(&t, &wpa_s->lci_time, &diff); 341341618Scy /* LCI age is calculated in 10th of a second units. */ 342341618Scy diff_l = diff.sec * 10 + diff.usec / 100000; 343341618Scy 344341618Scy if (max_age != 0xffff && max_age < diff_l) 345341618Scy goto reject; 346341618Scy 347341618Scy if (wpas_rrm_report_elem(buf, req->token, 348341618Scy MEASUREMENT_REPORT_MODE_ACCEPT, req->type, 349341618Scy wpabuf_head_u8(wpa_s->lci), 350341618Scy wpabuf_len(wpa_s->lci)) < 0) { 351341618Scy wpa_printf(MSG_DEBUG, "Failed to add LCI report element"); 352341618Scy return -1; 353341618Scy } 354341618Scy 355341618Scy return 0; 356341618Scy 357341618Scyreject: 358341618Scy if (!is_multicast_ether_addr(wpa_s->rrm.dst_addr) && 359341618Scy wpas_rrm_report_elem(buf, req->token, 360341618Scy MEASUREMENT_REPORT_MODE_REJECT_INCAPABLE, 361341618Scy req->type, NULL, 0) < 0) { 362341618Scy wpa_printf(MSG_DEBUG, "RRM: Failed to add report element"); 363341618Scy return -1; 364341618Scy } 365341618Scy 366341618Scy return 0; 367341618Scy} 368341618Scy 369341618Scy 370341618Scystatic void wpas_rrm_send_msr_report_mpdu(struct wpa_supplicant *wpa_s, 371341618Scy const u8 *data, size_t len) 372341618Scy{ 373341618Scy struct wpabuf *report = wpabuf_alloc(len + 3); 374341618Scy 375341618Scy if (!report) 376341618Scy return; 377341618Scy 378341618Scy wpabuf_put_u8(report, WLAN_ACTION_RADIO_MEASUREMENT); 379341618Scy wpabuf_put_u8(report, WLAN_RRM_RADIO_MEASUREMENT_REPORT); 380341618Scy wpabuf_put_u8(report, wpa_s->rrm.token); 381341618Scy 382341618Scy wpabuf_put_data(report, data, len); 383341618Scy 384341618Scy if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid, 385341618Scy wpa_s->own_addr, wpa_s->bssid, 386341618Scy wpabuf_head(report), wpabuf_len(report), 0)) { 387341618Scy wpa_printf(MSG_ERROR, 388341618Scy "RRM: Radio measurement report failed: Sending Action frame failed"); 389341618Scy } 390341618Scy 391341618Scy wpabuf_free(report); 392341618Scy} 393341618Scy 394341618Scy 395346981Scystatic int wpas_rrm_beacon_rep_update_last_frame(u8 *pos, size_t len) 396346981Scy{ 397346981Scy struct rrm_measurement_report_element *msr_rep; 398346981Scy u8 *end = pos + len; 399346981Scy u8 *msr_rep_end; 400346981Scy struct rrm_measurement_beacon_report *rep = NULL; 401346981Scy u8 *subelem; 402346981Scy 403346981Scy /* Find the last beacon report element */ 404346981Scy while (end - pos >= (int) sizeof(*msr_rep)) { 405346981Scy msr_rep = (struct rrm_measurement_report_element *) pos; 406346981Scy msr_rep_end = pos + msr_rep->len + 2; 407346981Scy 408346981Scy if (msr_rep->eid != WLAN_EID_MEASURE_REPORT || 409346981Scy msr_rep_end > end) { 410346981Scy /* Should not happen. This indicates a bug. */ 411346981Scy wpa_printf(MSG_ERROR, 412346981Scy "RRM: non-measurement report element in measurement report frame"); 413346981Scy return -1; 414346981Scy } 415346981Scy 416346981Scy if (msr_rep->type == MEASURE_TYPE_BEACON) 417346981Scy rep = (struct rrm_measurement_beacon_report *) 418346981Scy msr_rep->variable; 419346981Scy 420346981Scy pos += pos[1] + 2; 421346981Scy } 422346981Scy 423346981Scy if (!rep) 424346981Scy return 0; 425346981Scy 426346981Scy subelem = rep->variable; 427346981Scy while (subelem + 2 < msr_rep_end && 428346981Scy subelem[0] != WLAN_BEACON_REPORT_SUBELEM_LAST_INDICATION) 429346981Scy subelem += 2 + subelem[1]; 430346981Scy 431346981Scy if (subelem + 2 < msr_rep_end && 432346981Scy subelem[0] == WLAN_BEACON_REPORT_SUBELEM_LAST_INDICATION && 433346981Scy subelem[1] == 1 && 434346981Scy subelem + BEACON_REPORT_LAST_INDICATION_SUBELEM_LEN <= end) 435346981Scy subelem[2] = 1; 436346981Scy 437346981Scy return 0; 438346981Scy} 439346981Scy 440346981Scy 441341618Scystatic void wpas_rrm_send_msr_report(struct wpa_supplicant *wpa_s, 442341618Scy struct wpabuf *buf) 443341618Scy{ 444341618Scy int len = wpabuf_len(buf); 445346981Scy u8 *pos = wpabuf_mhead_u8(buf), *next = pos; 446341618Scy 447341618Scy#define MPDU_REPORT_LEN (int) (IEEE80211_MAX_MMPDU_SIZE - IEEE80211_HDRLEN - 3) 448341618Scy 449341618Scy while (len) { 450341618Scy int send_len = (len > MPDU_REPORT_LEN) ? next - pos : len; 451341618Scy 452346981Scy if (send_len == len) 453346981Scy wpas_rrm_beacon_rep_update_last_frame(pos, len); 454346981Scy 455341618Scy if (send_len == len || 456341618Scy (send_len + next[1] + 2) > MPDU_REPORT_LEN) { 457341618Scy wpas_rrm_send_msr_report_mpdu(wpa_s, pos, send_len); 458341618Scy len -= send_len; 459341618Scy pos = next; 460341618Scy } 461341618Scy 462341618Scy if (len) 463341618Scy next += next[1] + 2; 464341618Scy } 465341618Scy#undef MPDU_REPORT_LEN 466341618Scy} 467341618Scy 468341618Scy 469341618Scystatic int wpas_add_channel(u8 op_class, u8 chan, u8 num_primary_channels, 470341618Scy int *freqs) 471341618Scy{ 472341618Scy size_t i; 473341618Scy 474341618Scy for (i = 0; i < num_primary_channels; i++) { 475341618Scy u8 primary_chan = chan - (2 * num_primary_channels - 2) + i * 4; 476341618Scy 477341618Scy freqs[i] = ieee80211_chan_to_freq(NULL, op_class, primary_chan); 478341618Scy /* ieee80211_chan_to_freq() is not really meant for this 479341618Scy * conversion of 20 MHz primary channel numbers for wider VHT 480341618Scy * channels, so handle those as special cases here for now. */ 481341618Scy if (freqs[i] < 0 && 482341618Scy (op_class == 128 || op_class == 129 || op_class == 130)) 483341618Scy freqs[i] = 5000 + 5 * primary_chan; 484341618Scy if (freqs[i] < 0) { 485341618Scy wpa_printf(MSG_DEBUG, 486341618Scy "Beacon Report: Invalid channel %u", 487341618Scy chan); 488341618Scy return -1; 489341618Scy } 490341618Scy } 491341618Scy 492341618Scy return 0; 493341618Scy} 494341618Scy 495341618Scy 496341618Scystatic int * wpas_add_channels(const struct oper_class_map *op, 497341618Scy struct hostapd_hw_modes *mode, int active, 498341618Scy const u8 *channels, const u8 size) 499341618Scy{ 500341618Scy int *freqs, *next_freq; 501341618Scy u8 num_primary_channels, i; 502341618Scy u8 num_chans; 503341618Scy 504341618Scy num_chans = channels ? size : 505341618Scy (op->max_chan - op->min_chan) / op->inc + 1; 506341618Scy 507341618Scy if (op->bw == BW80 || op->bw == BW80P80) 508341618Scy num_primary_channels = 4; 509341618Scy else if (op->bw == BW160) 510341618Scy num_primary_channels = 8; 511341618Scy else 512341618Scy num_primary_channels = 1; 513341618Scy 514341618Scy /* one extra place for the zero-terminator */ 515341618Scy freqs = os_calloc(num_chans * num_primary_channels + 1, sizeof(*freqs)); 516341618Scy if (!freqs) { 517341618Scy wpa_printf(MSG_ERROR, 518341618Scy "Beacon Report: Failed to allocate freqs array"); 519341618Scy return NULL; 520341618Scy } 521341618Scy 522341618Scy next_freq = freqs; 523341618Scy for (i = 0; i < num_chans; i++) { 524341618Scy u8 chan = channels ? channels[i] : op->min_chan + i * op->inc; 525341618Scy enum chan_allowed res = verify_channel(mode, chan, op->bw); 526341618Scy 527341618Scy if (res == NOT_ALLOWED || (res == NO_IR && active)) 528341618Scy continue; 529341618Scy 530341618Scy if (wpas_add_channel(op->op_class, chan, num_primary_channels, 531341618Scy next_freq) < 0) { 532341618Scy os_free(freqs); 533341618Scy return NULL; 534341618Scy } 535341618Scy 536341618Scy next_freq += num_primary_channels; 537341618Scy } 538341618Scy 539341618Scy if (!freqs[0]) { 540341618Scy os_free(freqs); 541341618Scy return NULL; 542341618Scy } 543341618Scy 544341618Scy return freqs; 545341618Scy} 546341618Scy 547341618Scy 548341618Scystatic int * wpas_op_class_freqs(const struct oper_class_map *op, 549341618Scy struct hostapd_hw_modes *mode, int active) 550341618Scy{ 551341618Scy u8 channels_80mhz[] = { 42, 58, 106, 122, 138, 155 }; 552341618Scy u8 channels_160mhz[] = { 50, 114 }; 553341618Scy 554341618Scy /* 555341618Scy * When adding all channels in the operating class, 80 + 80 MHz 556341618Scy * operating classes are like 80 MHz channels because we add all valid 557341618Scy * channels anyway. 558341618Scy */ 559341618Scy if (op->bw == BW80 || op->bw == BW80P80) 560341618Scy return wpas_add_channels(op, mode, active, channels_80mhz, 561341618Scy ARRAY_SIZE(channels_80mhz)); 562341618Scy 563341618Scy if (op->bw == BW160) 564341618Scy return wpas_add_channels(op, mode, active, channels_160mhz, 565341618Scy ARRAY_SIZE(channels_160mhz)); 566341618Scy 567341618Scy return wpas_add_channels(op, mode, active, NULL, 0); 568341618Scy} 569341618Scy 570341618Scy 571341618Scystatic int * wpas_channel_report_freqs(struct wpa_supplicant *wpa_s, int active, 572341618Scy const char *country, const u8 *subelems, 573341618Scy size_t len) 574341618Scy{ 575341618Scy int *freqs = NULL, *new_freqs; 576341618Scy const u8 *end = subelems + len; 577341618Scy 578341618Scy while (end - subelems > 2) { 579341618Scy const struct oper_class_map *op; 580341618Scy const u8 *ap_chan_elem, *pos; 581341618Scy u8 left; 582341618Scy struct hostapd_hw_modes *mode; 583341618Scy 584341618Scy ap_chan_elem = get_ie(subelems, end - subelems, 585341618Scy WLAN_BEACON_REQUEST_SUBELEM_AP_CHANNEL); 586341618Scy if (!ap_chan_elem) 587341618Scy break; 588341618Scy pos = ap_chan_elem + 2; 589341618Scy left = ap_chan_elem[1]; 590341618Scy if (left < 1) 591341618Scy break; 592341618Scy subelems = ap_chan_elem + 2 + left; 593341618Scy 594341618Scy op = get_oper_class(country, *pos); 595341618Scy if (!op) { 596341618Scy wpa_printf(MSG_DEBUG, 597341618Scy "Beacon request: unknown operating class in AP Channel Report subelement %u", 598341618Scy *pos); 599341618Scy goto out; 600341618Scy } 601341618Scy pos++; 602341618Scy left--; 603341618Scy 604341618Scy mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, op->mode); 605341618Scy if (!mode) 606341618Scy continue; 607341618Scy 608341618Scy /* 609341618Scy * For 80 + 80 MHz operating classes, this AP Channel Report 610341618Scy * element should be followed by another element specifying 611341618Scy * the second 80 MHz channel. For now just add this 80 MHz 612341618Scy * channel, the second 80 MHz channel will be added when the 613341618Scy * next element is parsed. 614341618Scy * TODO: Verify that this AP Channel Report element is followed 615341618Scy * by a corresponding AP Channel Report element as specified in 616341618Scy * IEEE Std 802.11-2016, 11.11.9.1. 617341618Scy */ 618341618Scy new_freqs = wpas_add_channels(op, mode, active, pos, left); 619341618Scy if (new_freqs) 620341618Scy int_array_concat(&freqs, new_freqs); 621341618Scy 622341618Scy os_free(new_freqs); 623341618Scy } 624341618Scy 625341618Scy return freqs; 626341618Scyout: 627341618Scy os_free(freqs); 628341618Scy return NULL; 629341618Scy} 630341618Scy 631341618Scy 632341618Scystatic int * wpas_beacon_request_freqs(struct wpa_supplicant *wpa_s, 633341618Scy u8 op_class, u8 chan, int active, 634341618Scy const u8 *subelems, size_t len) 635341618Scy{ 636341618Scy int *freqs = NULL, *ext_freqs = NULL; 637341618Scy struct hostapd_hw_modes *mode; 638341618Scy const char *country = NULL; 639341618Scy const struct oper_class_map *op; 640341618Scy const u8 *elem; 641341618Scy 642341618Scy if (!wpa_s->current_bss) 643341618Scy return NULL; 644341618Scy elem = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_COUNTRY); 645341618Scy if (elem && elem[1] >= 2) 646341618Scy country = (const char *) (elem + 2); 647341618Scy 648341618Scy op = get_oper_class(country, op_class); 649341618Scy if (!op) { 650341618Scy wpa_printf(MSG_DEBUG, 651341618Scy "Beacon request: invalid operating class %d", 652341618Scy op_class); 653341618Scy return NULL; 654341618Scy } 655341618Scy 656341618Scy mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, op->mode); 657341618Scy if (!mode) 658341618Scy return NULL; 659341618Scy 660341618Scy switch (chan) { 661341618Scy case 0: 662341618Scy freqs = wpas_op_class_freqs(op, mode, active); 663341618Scy if (!freqs) 664341618Scy return NULL; 665341618Scy break; 666341618Scy case 255: 667341618Scy /* freqs will be added from AP channel subelements */ 668341618Scy break; 669341618Scy default: 670341618Scy freqs = wpas_add_channels(op, mode, active, &chan, 1); 671341618Scy if (!freqs) 672341618Scy return NULL; 673341618Scy break; 674341618Scy } 675341618Scy 676341618Scy ext_freqs = wpas_channel_report_freqs(wpa_s, active, country, subelems, 677341618Scy len); 678341618Scy if (ext_freqs) { 679341618Scy int_array_concat(&freqs, ext_freqs); 680341618Scy os_free(ext_freqs); 681341618Scy int_array_sort_unique(freqs); 682341618Scy } 683341618Scy 684341618Scy return freqs; 685341618Scy} 686341618Scy 687341618Scy 688341618Scystatic int wpas_get_op_chan_phy(int freq, const u8 *ies, size_t ies_len, 689341618Scy u8 *op_class, u8 *chan, u8 *phy_type) 690341618Scy{ 691341618Scy const u8 *ie; 692341618Scy int sec_chan = 0, vht = 0; 693341618Scy struct ieee80211_ht_operation *ht_oper = NULL; 694341618Scy struct ieee80211_vht_operation *vht_oper = NULL; 695341618Scy u8 seg0, seg1; 696341618Scy 697341618Scy ie = get_ie(ies, ies_len, WLAN_EID_HT_OPERATION); 698341618Scy if (ie && ie[1] >= sizeof(struct ieee80211_ht_operation)) { 699341618Scy u8 sec_chan_offset; 700341618Scy 701341618Scy ht_oper = (struct ieee80211_ht_operation *) (ie + 2); 702341618Scy sec_chan_offset = ht_oper->ht_param & 703341618Scy HT_INFO_HT_PARAM_SECONDARY_CHNL_OFF_MASK; 704341618Scy if (sec_chan_offset == HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE) 705341618Scy sec_chan = 1; 706341618Scy else if (sec_chan_offset == 707341618Scy HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW) 708341618Scy sec_chan = -1; 709341618Scy } 710341618Scy 711341618Scy ie = get_ie(ies, ies_len, WLAN_EID_VHT_OPERATION); 712341618Scy if (ie && ie[1] >= sizeof(struct ieee80211_vht_operation)) { 713341618Scy vht_oper = (struct ieee80211_vht_operation *) (ie + 2); 714341618Scy 715341618Scy switch (vht_oper->vht_op_info_chwidth) { 716341618Scy case 1: 717341618Scy seg0 = vht_oper->vht_op_info_chan_center_freq_seg0_idx; 718341618Scy seg1 = vht_oper->vht_op_info_chan_center_freq_seg1_idx; 719341618Scy if (seg1 && abs(seg1 - seg0) == 8) 720351611Scy vht = CHANWIDTH_160MHZ; 721341618Scy else if (seg1) 722351611Scy vht = CHANWIDTH_80P80MHZ; 723341618Scy else 724351611Scy vht = CHANWIDTH_80MHZ; 725341618Scy break; 726341618Scy case 2: 727351611Scy vht = CHANWIDTH_160MHZ; 728341618Scy break; 729341618Scy case 3: 730351611Scy vht = CHANWIDTH_80P80MHZ; 731341618Scy break; 732341618Scy default: 733351611Scy vht = CHANWIDTH_USE_HT; 734341618Scy break; 735341618Scy } 736341618Scy } 737341618Scy 738341618Scy if (ieee80211_freq_to_channel_ext(freq, sec_chan, vht, op_class, 739341618Scy chan) == NUM_HOSTAPD_MODES) { 740341618Scy wpa_printf(MSG_DEBUG, 741341618Scy "Cannot determine operating class and channel"); 742341618Scy return -1; 743341618Scy } 744341618Scy 745341618Scy *phy_type = ieee80211_get_phy_type(freq, ht_oper != NULL, 746341618Scy vht_oper != NULL); 747341618Scy if (*phy_type == PHY_TYPE_UNSPECIFIED) { 748341618Scy wpa_printf(MSG_DEBUG, "Cannot determine phy type"); 749341618Scy return -1; 750341618Scy } 751341618Scy 752341618Scy return 0; 753341618Scy} 754341618Scy 755341618Scy 756341618Scystatic int wpas_beacon_rep_add_frame_body(struct bitfield *eids, 757341618Scy enum beacon_report_detail detail, 758341618Scy struct wpa_bss *bss, u8 *buf, 759346981Scy size_t buf_len, u8 **ies_buf, 760346981Scy size_t *ie_len, int add_fixed) 761341618Scy{ 762346981Scy u8 *ies = *ies_buf; 763346981Scy size_t ies_len = *ie_len; 764341618Scy u8 *pos = buf; 765341618Scy int rem_len; 766341618Scy 767341618Scy rem_len = 255 - sizeof(struct rrm_measurement_beacon_report) - 768346981Scy sizeof(struct rrm_measurement_report_element) - 2 - 769346981Scy REPORTED_FRAME_BODY_SUBELEM_LEN; 770341618Scy 771341618Scy if (detail > BEACON_REPORT_DETAIL_ALL_FIELDS_AND_ELEMENTS) { 772341618Scy wpa_printf(MSG_DEBUG, 773341618Scy "Beacon Request: Invalid reporting detail: %d", 774341618Scy detail); 775341618Scy return -1; 776341618Scy } 777341618Scy 778341618Scy if (detail == BEACON_REPORT_DETAIL_NONE) 779341618Scy return 0; 780341618Scy 781341618Scy /* 782341618Scy * Minimal frame body subelement size: EID(1) + length(1) + TSF(8) + 783341618Scy * beacon interval(2) + capabilities(2) = 14 bytes 784341618Scy */ 785346981Scy if (add_fixed && buf_len < 14) 786346981Scy return -1; 787341618Scy 788341618Scy *pos++ = WLAN_BEACON_REPORT_SUBELEM_FRAME_BODY; 789341618Scy /* The length will be filled later */ 790341618Scy pos++; 791341618Scy 792346981Scy if (add_fixed) { 793346981Scy WPA_PUT_LE64(pos, bss->tsf); 794346981Scy pos += sizeof(bss->tsf); 795346981Scy WPA_PUT_LE16(pos, bss->beacon_int); 796346981Scy pos += 2; 797346981Scy WPA_PUT_LE16(pos, bss->caps); 798346981Scy pos += 2; 799346981Scy } 800346981Scy 801341618Scy rem_len -= pos - buf; 802341618Scy 803341618Scy /* 804341618Scy * According to IEEE Std 802.11-2016, 9.4.2.22.7, if the reported frame 805341618Scy * body subelement causes the element to exceed the maximum element 806341618Scy * size, the subelement is truncated so that the last IE is a complete 807341618Scy * IE. So even when required to report all IEs, add elements one after 808341618Scy * the other and stop once there is no more room in the measurement 809341618Scy * element. 810341618Scy */ 811341618Scy while (ies_len > 2 && 2U + ies[1] <= ies_len && rem_len > 0) { 812341618Scy if (detail == BEACON_REPORT_DETAIL_ALL_FIELDS_AND_ELEMENTS || 813341618Scy (eids && bitfield_is_set(eids, ies[0]))) { 814346981Scy u8 elen = ies[1]; 815341618Scy 816341618Scy if (2 + elen > buf + buf_len - pos || 817341618Scy 2 + elen > rem_len) 818341618Scy break; 819341618Scy 820341618Scy *pos++ = ies[0]; 821341618Scy *pos++ = elen; 822341618Scy os_memcpy(pos, ies + 2, elen); 823341618Scy pos += elen; 824341618Scy rem_len -= 2 + elen; 825341618Scy } 826341618Scy 827341618Scy ies_len -= 2 + ies[1]; 828341618Scy ies += 2 + ies[1]; 829341618Scy } 830341618Scy 831346981Scy *ie_len = ies_len; 832346981Scy *ies_buf = ies; 833346981Scy 834341618Scy /* Now the length is known */ 835341618Scy buf[1] = pos - buf - 2; 836341618Scy return pos - buf; 837341618Scy} 838341618Scy 839341618Scy 840346981Scystatic int wpas_add_beacon_rep_elem(struct beacon_rep_data *data, 841346981Scy struct wpa_bss *bss, 842346981Scy struct wpabuf **wpa_buf, 843346981Scy struct rrm_measurement_beacon_report *rep, 844346981Scy u8 **ie, size_t *ie_len, u8 idx) 845346981Scy{ 846346981Scy int ret; 847346981Scy u8 *buf, *pos; 848346981Scy u32 subelems_len = REPORTED_FRAME_BODY_SUBELEM_LEN + 849346981Scy (data->last_indication ? 850346981Scy BEACON_REPORT_LAST_INDICATION_SUBELEM_LEN : 0); 851346981Scy 852346981Scy /* Maximum element length: Beacon Report element + Reported Frame Body 853346981Scy * subelement + all IEs of the reported Beacon frame + Reported Frame 854346981Scy * Body Fragment ID subelement */ 855346981Scy buf = os_malloc(sizeof(*rep) + 14 + *ie_len + subelems_len); 856346981Scy if (!buf) 857346981Scy return -1; 858346981Scy 859346981Scy os_memcpy(buf, rep, sizeof(*rep)); 860346981Scy 861346981Scy ret = wpas_beacon_rep_add_frame_body(data->eids, data->report_detail, 862346981Scy bss, buf + sizeof(*rep), 863346981Scy 14 + *ie_len, ie, ie_len, 864346981Scy idx == 0); 865346981Scy if (ret < 0) 866346981Scy goto out; 867346981Scy 868346981Scy pos = buf + ret + sizeof(*rep); 869346981Scy pos[0] = WLAN_BEACON_REPORT_SUBELEM_FRAME_BODY_FRAGMENT_ID; 870346981Scy pos[1] = 2; 871346981Scy 872346981Scy /* 873346981Scy * Only one Beacon Report Measurement is supported at a time, so 874346981Scy * the Beacon Report ID can always be set to 1. 875346981Scy */ 876346981Scy pos[2] = 1; 877346981Scy 878346981Scy /* Fragment ID Number (bits 0..6) and More Frame Body Fragments (bit 7) 879346981Scy */ 880346981Scy pos[3] = idx; 881346981Scy if (data->report_detail != BEACON_REPORT_DETAIL_NONE && *ie_len) 882346981Scy pos[3] |= REPORTED_FRAME_BODY_MORE_FRAGMENTS; 883346981Scy else 884346981Scy pos[3] &= ~REPORTED_FRAME_BODY_MORE_FRAGMENTS; 885346981Scy 886346981Scy pos += REPORTED_FRAME_BODY_SUBELEM_LEN; 887346981Scy 888346981Scy if (data->last_indication) { 889346981Scy pos[0] = WLAN_BEACON_REPORT_SUBELEM_LAST_INDICATION; 890346981Scy pos[1] = 1; 891346981Scy 892346981Scy /* This field will be updated later if this is the last frame */ 893346981Scy pos[2] = 0; 894346981Scy } 895346981Scy 896346981Scy ret = wpas_rrm_report_elem(wpa_buf, data->token, 897346981Scy MEASUREMENT_REPORT_MODE_ACCEPT, 898346981Scy MEASURE_TYPE_BEACON, buf, 899346981Scy ret + sizeof(*rep) + subelems_len); 900346981Scyout: 901346981Scy os_free(buf); 902346981Scy return ret; 903346981Scy} 904346981Scy 905346981Scy 906341618Scystatic int wpas_add_beacon_rep(struct wpa_supplicant *wpa_s, 907341618Scy struct wpabuf **wpa_buf, struct wpa_bss *bss, 908341618Scy u64 start, u64 parent_tsf) 909341618Scy{ 910341618Scy struct beacon_rep_data *data = &wpa_s->beacon_rep_data; 911346981Scy u8 *ies = (u8 *) (bss + 1); 912346981Scy u8 *pos = ies; 913346981Scy size_t ies_len = bss->ie_len ? bss->ie_len : bss->beacon_ie_len; 914346981Scy struct rrm_measurement_beacon_report rep; 915346981Scy u8 idx = 0; 916341618Scy 917341618Scy if (os_memcmp(data->bssid, broadcast_ether_addr, ETH_ALEN) != 0 && 918341618Scy os_memcmp(data->bssid, bss->bssid, ETH_ALEN) != 0) 919341618Scy return 0; 920341618Scy 921341618Scy if (data->ssid_len && 922341618Scy (data->ssid_len != bss->ssid_len || 923341618Scy os_memcmp(data->ssid, bss->ssid, bss->ssid_len) != 0)) 924341618Scy return 0; 925341618Scy 926346981Scy if (wpas_get_op_chan_phy(bss->freq, ies, ies_len, &rep.op_class, 927346981Scy &rep.channel, &rep.report_info) < 0) 928346981Scy return 0; 929341618Scy 930346981Scy rep.start_time = host_to_le64(start); 931346981Scy rep.duration = host_to_le16(data->scan_params.duration); 932346981Scy rep.rcpi = rssi_to_rcpi(bss->level); 933346981Scy rep.rsni = 255; /* 255 indicates that RSNI is not available */ 934346981Scy os_memcpy(rep.bssid, bss->bssid, ETH_ALEN); 935346981Scy rep.antenna_id = 0; /* unknown */ 936346981Scy rep.parent_tsf = host_to_le32(parent_tsf); 937341618Scy 938346981Scy do { 939346981Scy int ret; 940341618Scy 941346981Scy ret = wpas_add_beacon_rep_elem(data, bss, wpa_buf, &rep, 942346981Scy &pos, &ies_len, idx++); 943346981Scy if (ret) 944346981Scy return ret; 945346981Scy } while (data->report_detail != BEACON_REPORT_DETAIL_NONE && 946346981Scy ies_len >= 2); 947341618Scy 948346981Scy return 0; 949341618Scy} 950341618Scy 951341618Scy 952341618Scystatic int wpas_beacon_rep_no_results(struct wpa_supplicant *wpa_s, 953341618Scy struct wpabuf **buf) 954341618Scy{ 955341618Scy return wpas_rrm_report_elem(buf, wpa_s->beacon_rep_data.token, 956341618Scy MEASUREMENT_REPORT_MODE_ACCEPT, 957341618Scy MEASURE_TYPE_BEACON, NULL, 0); 958341618Scy} 959341618Scy 960341618Scy 961341618Scystatic void wpas_beacon_rep_table(struct wpa_supplicant *wpa_s, 962341618Scy struct wpabuf **buf) 963341618Scy{ 964341618Scy size_t i; 965341618Scy 966341618Scy for (i = 0; i < wpa_s->last_scan_res_used; i++) { 967341618Scy if (wpas_add_beacon_rep(wpa_s, buf, wpa_s->last_scan_res[i], 968341618Scy 0, 0) < 0) 969341618Scy break; 970341618Scy } 971341618Scy 972341618Scy if (!(*buf)) 973341618Scy wpas_beacon_rep_no_results(wpa_s, buf); 974341618Scy 975341618Scy wpa_hexdump_buf(MSG_DEBUG, "RRM: Radio Measurement report", *buf); 976341618Scy} 977341618Scy 978341618Scy 979341618Scyvoid wpas_rrm_refuse_request(struct wpa_supplicant *wpa_s) 980341618Scy{ 981341618Scy if (!is_multicast_ether_addr(wpa_s->rrm.dst_addr)) { 982341618Scy struct wpabuf *buf = NULL; 983341618Scy 984341618Scy if (wpas_rrm_report_elem(&buf, wpa_s->beacon_rep_data.token, 985341618Scy MEASUREMENT_REPORT_MODE_REJECT_REFUSED, 986341618Scy MEASURE_TYPE_BEACON, NULL, 0)) { 987341618Scy wpa_printf(MSG_ERROR, "RRM: Memory allocation failed"); 988341618Scy wpabuf_free(buf); 989341618Scy return; 990341618Scy } 991341618Scy 992341618Scy wpas_rrm_send_msr_report(wpa_s, buf); 993341618Scy wpabuf_free(buf); 994341618Scy } 995341618Scy 996341618Scy wpas_clear_beacon_rep_data(wpa_s); 997341618Scy} 998341618Scy 999341618Scy 1000341618Scystatic void wpas_rrm_scan_timeout(void *eloop_ctx, void *timeout_ctx) 1001341618Scy{ 1002341618Scy struct wpa_supplicant *wpa_s = eloop_ctx; 1003341618Scy struct wpa_driver_scan_params *params = 1004341618Scy &wpa_s->beacon_rep_data.scan_params; 1005341618Scy u16 prev_duration = params->duration; 1006341618Scy 1007341618Scy if (!wpa_s->current_bss) 1008341618Scy return; 1009341618Scy 1010341618Scy if (!(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_SET_SCAN_DWELL) && 1011341618Scy params->duration) { 1012341618Scy wpa_printf(MSG_DEBUG, 1013341618Scy "RRM: Cannot set scan duration due to missing driver support"); 1014341618Scy params->duration = 0; 1015341618Scy } 1016341618Scy os_get_reltime(&wpa_s->beacon_rep_scan); 1017341618Scy if (wpa_s->scanning || wpas_p2p_in_progress(wpa_s) || 1018341618Scy wpa_supplicant_trigger_scan(wpa_s, params)) 1019341618Scy wpas_rrm_refuse_request(wpa_s); 1020341618Scy params->duration = prev_duration; 1021341618Scy} 1022341618Scy 1023341618Scy 1024341618Scystatic int wpas_rm_handle_beacon_req_subelem(struct wpa_supplicant *wpa_s, 1025341618Scy struct beacon_rep_data *data, 1026341618Scy u8 sid, u8 slen, const u8 *subelem) 1027341618Scy{ 1028341618Scy u8 report_info, i; 1029341618Scy 1030341618Scy switch (sid) { 1031341618Scy case WLAN_BEACON_REQUEST_SUBELEM_SSID: 1032341618Scy if (!slen) { 1033341618Scy wpa_printf(MSG_DEBUG, 1034341618Scy "SSID subelement with zero length - wildcard SSID"); 1035341618Scy break; 1036341618Scy } 1037341618Scy 1038341618Scy if (slen > SSID_MAX_LEN) { 1039341618Scy wpa_printf(MSG_DEBUG, 1040341618Scy "Invalid SSID subelement length: %u", slen); 1041341618Scy return -1; 1042341618Scy } 1043341618Scy 1044341618Scy data->ssid_len = slen; 1045341618Scy os_memcpy(data->ssid, subelem, data->ssid_len); 1046341618Scy break; 1047341618Scy case WLAN_BEACON_REQUEST_SUBELEM_INFO: 1048341618Scy if (slen != 2) { 1049341618Scy wpa_printf(MSG_DEBUG, 1050341618Scy "Invalid reporting information subelement length: %u", 1051341618Scy slen); 1052341618Scy return -1; 1053341618Scy } 1054341618Scy 1055341618Scy report_info = subelem[0]; 1056341618Scy if (report_info != 0) { 1057341618Scy wpa_printf(MSG_DEBUG, 1058341618Scy "reporting information=%u is not supported", 1059341618Scy report_info); 1060341618Scy return 0; 1061341618Scy } 1062341618Scy break; 1063341618Scy case WLAN_BEACON_REQUEST_SUBELEM_DETAIL: 1064341618Scy if (slen != 1) { 1065341618Scy wpa_printf(MSG_DEBUG, 1066341618Scy "Invalid reporting detail subelement length: %u", 1067341618Scy slen); 1068341618Scy return -1; 1069341618Scy } 1070341618Scy 1071341618Scy data->report_detail = subelem[0]; 1072341618Scy if (data->report_detail > 1073341618Scy BEACON_REPORT_DETAIL_ALL_FIELDS_AND_ELEMENTS) { 1074341618Scy wpa_printf(MSG_DEBUG, "Invalid reporting detail: %u", 1075341618Scy subelem[0]); 1076341618Scy return -1; 1077341618Scy } 1078341618Scy 1079341618Scy break; 1080341618Scy case WLAN_BEACON_REQUEST_SUBELEM_REQUEST: 1081341618Scy if (data->report_detail != 1082341618Scy BEACON_REPORT_DETAIL_REQUESTED_ONLY) { 1083341618Scy wpa_printf(MSG_DEBUG, 1084341618Scy "Beacon request: request subelement is present but report detail is %u", 1085341618Scy data->report_detail); 1086341618Scy return -1; 1087341618Scy } 1088341618Scy 1089341618Scy if (!slen) { 1090341618Scy wpa_printf(MSG_DEBUG, 1091341618Scy "Invalid request subelement length: %u", 1092341618Scy slen); 1093341618Scy return -1; 1094341618Scy } 1095341618Scy 1096341618Scy if (data->eids) { 1097341618Scy wpa_printf(MSG_DEBUG, 1098341618Scy "Beacon Request: Request subelement appears more than once"); 1099341618Scy return -1; 1100341618Scy } 1101341618Scy 1102341618Scy data->eids = bitfield_alloc(255); 1103341618Scy if (!data->eids) { 1104341618Scy wpa_printf(MSG_DEBUG, "Failed to allocate EIDs bitmap"); 1105341618Scy return -1; 1106341618Scy } 1107341618Scy 1108341618Scy for (i = 0; i < slen; i++) 1109341618Scy bitfield_set(data->eids, subelem[i]); 1110341618Scy break; 1111341618Scy case WLAN_BEACON_REQUEST_SUBELEM_AP_CHANNEL: 1112341618Scy /* Skip - it will be processed when freqs are added */ 1113341618Scy break; 1114346981Scy case WLAN_BEACON_REQUEST_SUBELEM_LAST_INDICATION: 1115346981Scy if (slen != 1) { 1116346981Scy wpa_printf(MSG_DEBUG, 1117346981Scy "Beacon request: Invalid last indication request subelement length: %u", 1118346981Scy slen); 1119346981Scy return -1; 1120346981Scy } 1121346981Scy 1122346981Scy data->last_indication = subelem[0]; 1123346981Scy break; 1124341618Scy default: 1125341618Scy wpa_printf(MSG_DEBUG, 1126341618Scy "Beacon request: Unknown subelement id %u", sid); 1127341618Scy break; 1128341618Scy } 1129341618Scy 1130341618Scy return 1; 1131341618Scy} 1132341618Scy 1133341618Scy 1134341618Scy/** 1135341618Scy * Returns 0 if the next element can be processed, 1 if some operation was 1136341618Scy * triggered, and -1 if processing failed (i.e., the element is in invalid 1137341618Scy * format or an internal error occurred). 1138341618Scy */ 1139341618Scystatic int 1140341618Scywpas_rm_handle_beacon_req(struct wpa_supplicant *wpa_s, 1141341618Scy u8 elem_token, int duration_mandatory, 1142341618Scy const struct rrm_measurement_beacon_request *req, 1143341618Scy size_t len, struct wpabuf **buf) 1144341618Scy{ 1145341618Scy struct beacon_rep_data *data = &wpa_s->beacon_rep_data; 1146341618Scy struct wpa_driver_scan_params *params = &data->scan_params; 1147341618Scy const u8 *subelems; 1148341618Scy size_t elems_len; 1149341618Scy u16 rand_interval; 1150341618Scy u32 interval_usec; 1151341618Scy u32 _rand; 1152341618Scy int ret = 0, res; 1153341618Scy u8 reject_mode; 1154341618Scy 1155341618Scy if (len < sizeof(*req)) 1156341618Scy return -1; 1157341618Scy 1158341618Scy if (req->mode != BEACON_REPORT_MODE_PASSIVE && 1159341618Scy req->mode != BEACON_REPORT_MODE_ACTIVE && 1160341618Scy req->mode != BEACON_REPORT_MODE_TABLE) 1161341618Scy return 0; 1162341618Scy 1163341618Scy subelems = req->variable; 1164341618Scy elems_len = len - sizeof(*req); 1165341618Scy rand_interval = le_to_host16(req->rand_interval); 1166341618Scy 1167341618Scy os_free(params->freqs); 1168341618Scy os_memset(params, 0, sizeof(*params)); 1169341618Scy 1170341618Scy data->token = elem_token; 1171341618Scy 1172341618Scy /* default reporting detail is all fixed length fields and all 1173341618Scy * elements */ 1174341618Scy data->report_detail = BEACON_REPORT_DETAIL_ALL_FIELDS_AND_ELEMENTS; 1175341618Scy os_memcpy(data->bssid, req->bssid, ETH_ALEN); 1176341618Scy 1177341618Scy while (elems_len >= 2) { 1178341618Scy if (subelems[1] > elems_len - 2) { 1179341618Scy wpa_printf(MSG_DEBUG, 1180341618Scy "Beacon Request: Truncated subelement"); 1181341618Scy ret = -1; 1182341618Scy goto out; 1183341618Scy } 1184341618Scy 1185341618Scy res = wpas_rm_handle_beacon_req_subelem( 1186341618Scy wpa_s, data, subelems[0], subelems[1], &subelems[2]); 1187341618Scy if (res < 0) { 1188341618Scy ret = res; 1189341618Scy goto out; 1190341618Scy } else if (!res) { 1191341618Scy reject_mode = MEASUREMENT_REPORT_MODE_REJECT_INCAPABLE; 1192341618Scy goto out_reject; 1193341618Scy } 1194341618Scy 1195341618Scy elems_len -= 2 + subelems[1]; 1196341618Scy subelems += 2 + subelems[1]; 1197341618Scy } 1198341618Scy 1199341618Scy if (req->mode == BEACON_REPORT_MODE_TABLE) { 1200341618Scy wpas_beacon_rep_table(wpa_s, buf); 1201341618Scy goto out; 1202341618Scy } 1203341618Scy 1204341618Scy params->freqs = wpas_beacon_request_freqs( 1205341618Scy wpa_s, req->oper_class, req->channel, 1206341618Scy req->mode == BEACON_REPORT_MODE_ACTIVE, 1207341618Scy req->variable, len - sizeof(*req)); 1208341618Scy if (!params->freqs) { 1209341618Scy wpa_printf(MSG_DEBUG, "Beacon request: No valid channels"); 1210341618Scy reject_mode = MEASUREMENT_REPORT_MODE_REJECT_REFUSED; 1211341618Scy goto out_reject; 1212341618Scy } 1213341618Scy 1214341618Scy params->duration = le_to_host16(req->duration); 1215341618Scy params->duration_mandatory = duration_mandatory; 1216341618Scy if (!params->duration) { 1217341618Scy wpa_printf(MSG_DEBUG, "Beacon request: Duration is 0"); 1218341618Scy ret = -1; 1219341618Scy goto out; 1220341618Scy } 1221341618Scy 1222341618Scy params->only_new_results = 1; 1223341618Scy 1224341618Scy if (req->mode == BEACON_REPORT_MODE_ACTIVE) { 1225341618Scy params->ssids[params->num_ssids].ssid = data->ssid; 1226341618Scy params->ssids[params->num_ssids++].ssid_len = data->ssid_len; 1227341618Scy } 1228341618Scy 1229341618Scy if (os_get_random((u8 *) &_rand, sizeof(_rand)) < 0) 1230341618Scy _rand = os_random(); 1231341618Scy interval_usec = (_rand % (rand_interval + 1)) * 1024; 1232341618Scy eloop_register_timeout(0, interval_usec, wpas_rrm_scan_timeout, wpa_s, 1233341618Scy NULL); 1234341618Scy return 1; 1235341618Scyout_reject: 1236341618Scy if (!is_multicast_ether_addr(wpa_s->rrm.dst_addr) && 1237341618Scy wpas_rrm_report_elem(buf, elem_token, reject_mode, 1238341618Scy MEASURE_TYPE_BEACON, NULL, 0) < 0) { 1239341618Scy wpa_printf(MSG_DEBUG, "RRM: Failed to add report element"); 1240341618Scy ret = -1; 1241341618Scy } 1242341618Scyout: 1243341618Scy wpas_clear_beacon_rep_data(wpa_s); 1244341618Scy return ret; 1245341618Scy} 1246341618Scy 1247341618Scy 1248341618Scystatic int 1249341618Scywpas_rrm_handle_msr_req_element( 1250341618Scy struct wpa_supplicant *wpa_s, 1251341618Scy const struct rrm_measurement_request_element *req, 1252341618Scy struct wpabuf **buf) 1253341618Scy{ 1254341618Scy int duration_mandatory; 1255341618Scy 1256341618Scy wpa_printf(MSG_DEBUG, "Measurement request type %d token %d", 1257341618Scy req->type, req->token); 1258341618Scy 1259341618Scy if (req->mode & MEASUREMENT_REQUEST_MODE_ENABLE) { 1260341618Scy /* Enable bit is not supported for now */ 1261341618Scy wpa_printf(MSG_DEBUG, "RRM: Enable bit not supported, ignore"); 1262341618Scy return 0; 1263341618Scy } 1264341618Scy 1265341618Scy if ((req->mode & MEASUREMENT_REQUEST_MODE_PARALLEL) && 1266341618Scy req->type > MEASURE_TYPE_RPI_HIST) { 1267341618Scy /* Parallel measurements are not supported for now */ 1268341618Scy wpa_printf(MSG_DEBUG, 1269341618Scy "RRM: Parallel measurements are not supported, reject"); 1270341618Scy goto reject; 1271341618Scy } 1272341618Scy 1273341618Scy duration_mandatory = 1274341618Scy !!(req->mode & MEASUREMENT_REQUEST_MODE_DURATION_MANDATORY); 1275341618Scy 1276341618Scy switch (req->type) { 1277341618Scy case MEASURE_TYPE_LCI: 1278341618Scy return wpas_rrm_build_lci_report(wpa_s, req, buf); 1279341618Scy case MEASURE_TYPE_BEACON: 1280341618Scy if (duration_mandatory && 1281341618Scy !(wpa_s->drv_rrm_flags & 1282341618Scy WPA_DRIVER_FLAGS_SUPPORT_SET_SCAN_DWELL)) { 1283341618Scy wpa_printf(MSG_DEBUG, 1284341618Scy "RRM: Driver does not support dwell time configuration - reject beacon report with mandatory duration"); 1285341618Scy goto reject; 1286341618Scy } 1287341618Scy return wpas_rm_handle_beacon_req(wpa_s, req->token, 1288341618Scy duration_mandatory, 1289341618Scy (const void *) req->variable, 1290341618Scy req->len - 3, buf); 1291341618Scy default: 1292341618Scy wpa_printf(MSG_INFO, 1293341618Scy "RRM: Unsupported radio measurement type %u", 1294341618Scy req->type); 1295341618Scy break; 1296341618Scy } 1297341618Scy 1298341618Scyreject: 1299341618Scy if (!is_multicast_ether_addr(wpa_s->rrm.dst_addr) && 1300341618Scy wpas_rrm_report_elem(buf, req->token, 1301341618Scy MEASUREMENT_REPORT_MODE_REJECT_INCAPABLE, 1302341618Scy req->type, NULL, 0) < 0) { 1303341618Scy wpa_printf(MSG_DEBUG, "RRM: Failed to add report element"); 1304341618Scy return -1; 1305341618Scy } 1306341618Scy 1307341618Scy return 0; 1308341618Scy} 1309341618Scy 1310341618Scy 1311341618Scystatic struct wpabuf * 1312341618Scywpas_rrm_process_msr_req_elems(struct wpa_supplicant *wpa_s, const u8 *pos, 1313341618Scy size_t len) 1314341618Scy{ 1315341618Scy struct wpabuf *buf = NULL; 1316341618Scy 1317341618Scy while (len) { 1318341618Scy const struct rrm_measurement_request_element *req; 1319341618Scy int res; 1320341618Scy 1321341618Scy if (len < 2) { 1322341618Scy wpa_printf(MSG_DEBUG, "RRM: Truncated element"); 1323341618Scy goto out; 1324341618Scy } 1325341618Scy 1326341618Scy req = (const struct rrm_measurement_request_element *) pos; 1327341618Scy if (req->eid != WLAN_EID_MEASURE_REQUEST) { 1328341618Scy wpa_printf(MSG_DEBUG, 1329341618Scy "RRM: Expected Measurement Request element, but EID is %u", 1330341618Scy req->eid); 1331341618Scy goto out; 1332341618Scy } 1333341618Scy 1334341618Scy if (req->len < 3) { 1335341618Scy wpa_printf(MSG_DEBUG, "RRM: Element length too short"); 1336341618Scy goto out; 1337341618Scy } 1338341618Scy 1339341618Scy if (req->len > len - 2) { 1340341618Scy wpa_printf(MSG_DEBUG, "RRM: Element length too long"); 1341341618Scy goto out; 1342341618Scy } 1343341618Scy 1344341618Scy res = wpas_rrm_handle_msr_req_element(wpa_s, req, &buf); 1345341618Scy if (res < 0) 1346341618Scy goto out; 1347341618Scy 1348341618Scy pos += req->len + 2; 1349341618Scy len -= req->len + 2; 1350341618Scy } 1351341618Scy 1352341618Scy return buf; 1353341618Scy 1354341618Scyout: 1355341618Scy wpabuf_free(buf); 1356341618Scy return NULL; 1357341618Scy} 1358341618Scy 1359341618Scy 1360341618Scyvoid wpas_rrm_handle_radio_measurement_request(struct wpa_supplicant *wpa_s, 1361341618Scy const u8 *src, const u8 *dst, 1362341618Scy const u8 *frame, size_t len) 1363341618Scy{ 1364341618Scy struct wpabuf *report; 1365341618Scy 1366341618Scy if (wpa_s->wpa_state != WPA_COMPLETED) { 1367341618Scy wpa_printf(MSG_INFO, 1368341618Scy "RRM: Ignoring radio measurement request: Not associated"); 1369341618Scy return; 1370341618Scy } 1371341618Scy 1372341618Scy if (!wpa_s->rrm.rrm_used) { 1373341618Scy wpa_printf(MSG_INFO, 1374341618Scy "RRM: Ignoring radio measurement request: Not RRM network"); 1375341618Scy return; 1376341618Scy } 1377341618Scy 1378341618Scy if (len < 3) { 1379341618Scy wpa_printf(MSG_INFO, 1380341618Scy "RRM: Ignoring too short radio measurement request"); 1381341618Scy return; 1382341618Scy } 1383341618Scy 1384341618Scy wpa_s->rrm.token = *frame; 1385341618Scy os_memcpy(wpa_s->rrm.dst_addr, dst, ETH_ALEN); 1386341618Scy 1387341618Scy /* Number of repetitions is not supported */ 1388341618Scy 1389341618Scy report = wpas_rrm_process_msr_req_elems(wpa_s, frame + 3, len - 3); 1390341618Scy if (!report) 1391341618Scy return; 1392341618Scy 1393341618Scy wpas_rrm_send_msr_report(wpa_s, report); 1394341618Scy wpabuf_free(report); 1395341618Scy} 1396341618Scy 1397341618Scy 1398341618Scyvoid wpas_rrm_handle_link_measurement_request(struct wpa_supplicant *wpa_s, 1399341618Scy const u8 *src, 1400341618Scy const u8 *frame, size_t len, 1401341618Scy int rssi) 1402341618Scy{ 1403341618Scy struct wpabuf *buf; 1404341618Scy const struct rrm_link_measurement_request *req; 1405341618Scy struct rrm_link_measurement_report report; 1406341618Scy 1407341618Scy if (wpa_s->wpa_state != WPA_COMPLETED) { 1408341618Scy wpa_printf(MSG_INFO, 1409341618Scy "RRM: Ignoring link measurement request. Not associated"); 1410341618Scy return; 1411341618Scy } 1412341618Scy 1413341618Scy if (!wpa_s->rrm.rrm_used) { 1414341618Scy wpa_printf(MSG_INFO, 1415341618Scy "RRM: Ignoring link measurement request. Not RRM network"); 1416341618Scy return; 1417341618Scy } 1418341618Scy 1419341618Scy if (!(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION)) { 1420341618Scy wpa_printf(MSG_INFO, 1421341618Scy "RRM: Measurement report failed. TX power insertion not supported"); 1422341618Scy return; 1423341618Scy } 1424341618Scy 1425341618Scy req = (const struct rrm_link_measurement_request *) frame; 1426341618Scy if (len < sizeof(*req)) { 1427341618Scy wpa_printf(MSG_INFO, 1428341618Scy "RRM: Link measurement report failed. Request too short"); 1429341618Scy return; 1430341618Scy } 1431341618Scy 1432341618Scy os_memset(&report, 0, sizeof(report)); 1433341618Scy report.dialog_token = req->dialog_token; 1434341618Scy report.tpc.eid = WLAN_EID_TPC_REPORT; 1435341618Scy report.tpc.len = 2; 1436341618Scy /* Note: The driver is expected to update report.tpc.tx_power and 1437341618Scy * report.tpc.link_margin subfields when sending out this frame. 1438341618Scy * Similarly, the driver would need to update report.rx_ant_id and 1439341618Scy * report.tx_ant_id subfields. */ 1440341618Scy report.rsni = 255; /* 255 indicates that RSNI is not available */ 1441341618Scy report.rcpi = rssi_to_rcpi(rssi); 1442341618Scy 1443341618Scy /* action_category + action_code */ 1444341618Scy buf = wpabuf_alloc(2 + sizeof(report)); 1445341618Scy if (buf == NULL) { 1446341618Scy wpa_printf(MSG_ERROR, 1447341618Scy "RRM: Link measurement report failed. Buffer allocation failed"); 1448341618Scy return; 1449341618Scy } 1450341618Scy 1451341618Scy wpabuf_put_u8(buf, WLAN_ACTION_RADIO_MEASUREMENT); 1452341618Scy wpabuf_put_u8(buf, WLAN_RRM_LINK_MEASUREMENT_REPORT); 1453341618Scy wpabuf_put_data(buf, &report, sizeof(report)); 1454341618Scy wpa_hexdump_buf(MSG_DEBUG, "RRM: Link measurement report", buf); 1455341618Scy 1456341618Scy if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, src, 1457341618Scy wpa_s->own_addr, wpa_s->bssid, 1458341618Scy wpabuf_head(buf), wpabuf_len(buf), 0)) { 1459341618Scy wpa_printf(MSG_ERROR, 1460341618Scy "RRM: Link measurement report failed. Send action failed"); 1461341618Scy } 1462341618Scy wpabuf_free(buf); 1463341618Scy} 1464341618Scy 1465341618Scy 1466341618Scyint wpas_beacon_rep_scan_process(struct wpa_supplicant *wpa_s, 1467341618Scy struct wpa_scan_results *scan_res, 1468341618Scy struct scan_info *info) 1469341618Scy{ 1470341618Scy size_t i = 0; 1471341618Scy struct wpabuf *buf = NULL; 1472341618Scy 1473341618Scy if (!wpa_s->beacon_rep_data.token) 1474341618Scy return 0; 1475341618Scy 1476341618Scy if (!wpa_s->current_bss) 1477341618Scy goto out; 1478341618Scy 1479341618Scy /* If the measurement was aborted, don't report partial results */ 1480341618Scy if (info->aborted) 1481341618Scy goto out; 1482341618Scy 1483341618Scy wpa_printf(MSG_DEBUG, "RRM: TSF BSSID: " MACSTR " current BSS: " MACSTR, 1484341618Scy MAC2STR(info->scan_start_tsf_bssid), 1485341618Scy MAC2STR(wpa_s->current_bss->bssid)); 1486341618Scy if ((wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_BEACON_REPORT) && 1487341618Scy os_memcmp(info->scan_start_tsf_bssid, wpa_s->current_bss->bssid, 1488341618Scy ETH_ALEN) != 0) { 1489341618Scy wpa_printf(MSG_DEBUG, 1490341618Scy "RRM: Ignore scan results due to mismatching TSF BSSID"); 1491341618Scy goto out; 1492341618Scy } 1493341618Scy 1494341618Scy for (i = 0; i < scan_res->num; i++) { 1495341618Scy struct wpa_bss *bss = 1496341618Scy wpa_bss_get_bssid(wpa_s, scan_res->res[i]->bssid); 1497341618Scy 1498341618Scy if (!bss) 1499341618Scy continue; 1500341618Scy 1501341618Scy if ((wpa_s->drv_rrm_flags & 1502341618Scy WPA_DRIVER_FLAGS_SUPPORT_BEACON_REPORT) && 1503341618Scy os_memcmp(scan_res->res[i]->tsf_bssid, 1504341618Scy wpa_s->current_bss->bssid, ETH_ALEN) != 0) { 1505341618Scy wpa_printf(MSG_DEBUG, 1506341618Scy "RRM: Ignore scan result for " MACSTR 1507341618Scy " due to mismatching TSF BSSID" MACSTR, 1508341618Scy MAC2STR(scan_res->res[i]->bssid), 1509341618Scy MAC2STR(scan_res->res[i]->tsf_bssid)); 1510341618Scy continue; 1511341618Scy } 1512341618Scy 1513341618Scy /* 1514341618Scy * Don't report results that were not received during the 1515341618Scy * current measurement. 1516341618Scy */ 1517341618Scy if (!(wpa_s->drv_rrm_flags & 1518341618Scy WPA_DRIVER_FLAGS_SUPPORT_BEACON_REPORT)) { 1519341618Scy struct os_reltime update_time, diff; 1520341618Scy 1521341618Scy /* For now, allow 8 ms older results due to some 1522341618Scy * unknown issue with cfg80211 BSS table updates during 1523341618Scy * a scan with the current BSS. 1524341618Scy * TODO: Fix this more properly to avoid having to have 1525341618Scy * this type of hacks in place. */ 1526341618Scy calculate_update_time(&scan_res->fetch_time, 1527341618Scy scan_res->res[i]->age, 1528341618Scy &update_time); 1529341618Scy os_reltime_sub(&wpa_s->beacon_rep_scan, 1530341618Scy &update_time, &diff); 1531341618Scy if (os_reltime_before(&update_time, 1532341618Scy &wpa_s->beacon_rep_scan) && 1533341618Scy (diff.sec || diff.usec >= 8000)) { 1534341618Scy wpa_printf(MSG_DEBUG, 1535341618Scy "RRM: Ignore scan result for " MACSTR 1536341618Scy " due to old update (age(ms) %u, calculated age %u.%06u seconds)", 1537341618Scy MAC2STR(scan_res->res[i]->bssid), 1538341618Scy scan_res->res[i]->age, 1539341618Scy (unsigned int) diff.sec, 1540341618Scy (unsigned int) diff.usec); 1541341618Scy continue; 1542341618Scy } 1543341618Scy } else if (info->scan_start_tsf > 1544341618Scy scan_res->res[i]->parent_tsf) { 1545341618Scy continue; 1546341618Scy } 1547341618Scy 1548341618Scy if (wpas_add_beacon_rep(wpa_s, &buf, bss, info->scan_start_tsf, 1549341618Scy scan_res->res[i]->parent_tsf) < 0) 1550341618Scy break; 1551341618Scy } 1552341618Scy 1553341618Scy if (!buf && wpas_beacon_rep_no_results(wpa_s, &buf)) 1554341618Scy goto out; 1555341618Scy 1556341618Scy wpa_hexdump_buf(MSG_DEBUG, "RRM: Radio Measurement report", buf); 1557341618Scy 1558341618Scy wpas_rrm_send_msr_report(wpa_s, buf); 1559341618Scy wpabuf_free(buf); 1560341618Scy 1561341618Scyout: 1562341618Scy wpas_clear_beacon_rep_data(wpa_s); 1563341618Scy return 1; 1564341618Scy} 1565341618Scy 1566341618Scy 1567341618Scyvoid wpas_clear_beacon_rep_data(struct wpa_supplicant *wpa_s) 1568341618Scy{ 1569341618Scy struct beacon_rep_data *data = &wpa_s->beacon_rep_data; 1570341618Scy 1571341618Scy eloop_cancel_timeout(wpas_rrm_scan_timeout, wpa_s, NULL); 1572341618Scy bitfield_free(data->eids); 1573341618Scy os_free(data->scan_params.freqs); 1574341618Scy os_memset(data, 0, sizeof(*data)); 1575341618Scy} 1576