Om Prakash Tripathi | 7e3f45d | 2016-12-28 16:58:54 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * Permission to use, copy, modify, and/or distribute this software for |
| 5 | * any purpose with or without fee is hereby granted, provided that the |
| 6 | * above copyright notice and this permission notice appear in all |
| 7 | * copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 10 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 11 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 12 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 13 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 14 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 15 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 16 | * PERFORMANCE OF THIS SOFTWARE. |
| 17 | */ |
| 18 | |
| 19 | /* |
| 20 | * DOC: Defines scan utility functions |
| 21 | */ |
Om Prakash Tripathi | 22f95dc | 2016-12-19 10:45:59 +0530 | [diff] [blame] | 22 | |
Abhishek Singh | 4caf1a9 | 2017-02-21 15:01:08 +0530 | [diff] [blame^] | 23 | #include <wlan_cmn.h> |
Om Prakash Tripathi | 22f95dc | 2016-12-19 10:45:59 +0530 | [diff] [blame] | 24 | #include <wlan_scan_ucfg_api.h> |
| 25 | #include <wlan_scan_utils_api.h> |
| 26 | #include <../../core/src/wlan_scan_cache_db.h> |
| 27 | #include <../../core/src/wlan_scan_main.h> |
| 28 | |
| 29 | const char* |
| 30 | util_scan_get_ev_type_name(enum scan_event_type type) |
| 31 | { |
| 32 | static const char * const event_name[] = { |
| 33 | [SCAN_EVENT_TYPE_STARTED] = "STARTED", |
| 34 | [SCAN_EVENT_TYPE_COMPLETED] = "COMPLETED", |
| 35 | [SCAN_EVENT_TYPE_BSS_CHANNEL] = "HOME_CHANNEL", |
| 36 | [SCAN_EVENT_TYPE_FOREIGN_CHANNEL] = "FOREIGN_CHANNEL", |
| 37 | [SCAN_EVENT_TYPE_DEQUEUED] = "DEQUEUED", |
| 38 | [SCAN_EVENT_TYPE_PREEMPTED] = "PREEMPTED", |
| 39 | [SCAN_EVENT_TYPE_START_FAILED] = "START_FAILED", |
| 40 | [SCAN_EVENT_TYPE_RESTARTED] = "RESTARTED", |
| 41 | [SCAN_EVENT_TYPE_FOREIGN_CHANNEL_EXIT] = "FOREIGN_CHANNEL_EXIT", |
| 42 | [SCAN_EVENT_TYPE_SUSPENDED] = "SUSPENDED", |
| 43 | [SCAN_EVENT_TYPE_RESUMED] = "RESUMED", |
| 44 | [SCAN_EVENT_TYPE_NLO_COMPLETE] = "NLO_COMPLETE", |
| 45 | [SCAN_EVENT_TYPE_INVALID] = "INVALID", |
| 46 | [SCAN_EVENT_TYPE_GPIO_TIMEOUT] = "GPIO_TIMEOUT", |
| 47 | [SCAN_EVENT_TYPE_RADIO_MEASUREMENT_START] = |
| 48 | "RADIO_MEASUREMENT_START", |
| 49 | [SCAN_EVENT_TYPE_RADIO_MEASUREMENT_END] = |
| 50 | "RADIO_MEASUREMENT_END", |
| 51 | [SCAN_EVENT_TYPE_BSSID_MATCH] = "BSSID_MATCH", |
| 52 | [SCAN_EVENT_TYPE_FOREIGN_CHANNEL_GET_NF] = |
| 53 | "FOREIGN_CHANNEL_GET_NF", |
| 54 | }; |
| 55 | |
| 56 | if (type >= SCAN_EVENT_TYPE_MAX) { |
| 57 | scm_err("unknown type : %d", type); |
| 58 | QDF_ASSERT(0); |
| 59 | return "UNKNOWN"; |
| 60 | } |
| 61 | |
| 62 | return event_name[type]; |
| 63 | } |
| 64 | |
| 65 | |
| 66 | const char* |
| 67 | util_scan_get_ev_reason_name(enum scan_completion_reason reason) |
| 68 | { |
| 69 | static const char * const reason_name[] = { |
| 70 | [SCAN_REASON_NONE] = "NONE", |
| 71 | [SCAN_REASON_COMPLETED] = "COMPLETED", |
| 72 | [SCAN_REASON_CANCELLED] = "CANCELLED", |
| 73 | [SCAN_REASON_PREEMPTED] = "PREEMPTED", |
| 74 | [SCAN_REASON_TIMEDOUT] = "TIMEDOUT", |
| 75 | [SCAN_REASON_INTERNAL_FAILURE] = "INTERNAL_FAILURE", |
| 76 | [SCAN_REASON_SUSPENDED] = "SUSPENDED", |
| 77 | [SCAN_REASON_RUN_FAILED] = "RUN_FAILED", |
| 78 | [SCAN_REASON_TERMINATION_FUNCTION] = "TERMINATION_FUNCTION", |
| 79 | [SCAN_REASON_MAX_OFFCHAN_RETRIES] = "MAX_OFFCHAN_RETRIES", |
| 80 | }; |
| 81 | |
| 82 | if (reason >= SCAN_REASON_MAX) { |
| 83 | scm_err("unknown reason : %d", reason); |
| 84 | QDF_ASSERT(0); |
| 85 | return "UNKNOWN"; |
| 86 | } |
| 87 | |
| 88 | return reason_name[reason]; |
| 89 | } |
| 90 | |
| 91 | qdf_time_t |
| 92 | util_get_last_scan_time(struct wlan_objmgr_vdev *vdev) |
| 93 | { |
| 94 | uint8_t pdev_id; |
| 95 | struct wlan_scan_obj *scan_obj; |
| 96 | |
| 97 | if (!vdev) { |
| 98 | scm_warn("null vdev"); |
| 99 | QDF_ASSERT(0); |
| 100 | return 0; |
| 101 | } |
| 102 | pdev_id = wlan_scan_vdev_get_pdev_id(vdev); |
| 103 | scan_obj = wlan_vdev_get_scan_obj(vdev); |
| 104 | |
| 105 | return scan_obj->pdev_info[pdev_id].last_scan_time; |
| 106 | } |
Abhishek Singh | 4caf1a9 | 2017-02-21 15:01:08 +0530 | [diff] [blame^] | 107 | |
| 108 | static enum wlan_band scm_chan_to_band(uint32_t chan) |
| 109 | { |
| 110 | if (WLAN_CHAN_IS_2GHZ(chan)) |
| 111 | return WLAN_BAND_2_4_GHZ; |
| 112 | |
| 113 | return WLAN_BAND_5_GHZ; |
| 114 | } |
| 115 | |
| 116 | static bool util_is_pureg_rate(uint8_t *rates, uint8_t nrates) |
| 117 | { |
| 118 | static const uint8_t g_rates[] = {12, 18, 24, 36, 48, 72, 96, 108}; |
| 119 | bool pureg = false; |
| 120 | uint8_t i, j; |
| 121 | |
| 122 | for (i = 0; i < nrates; i++) { |
| 123 | for (j = 0; j < QDF_ARRAY_SIZE(g_rates); j++) { |
| 124 | if (WLAN_RV(rates[i]) == g_rates[j]) { |
| 125 | pureg = true; |
| 126 | break; |
| 127 | } |
| 128 | } |
| 129 | if (pureg) |
| 130 | break; |
| 131 | } |
| 132 | |
| 133 | return pureg; |
| 134 | } |
| 135 | static enum wlan_phymode |
| 136 | util_scan_get_phymode_5g(struct scan_cache_entry *scan_params) |
| 137 | { |
| 138 | enum wlan_phymode phymode = WLAN_PHYMODE_AUTO; |
| 139 | uint16_t ht_cap = 0; |
| 140 | struct htcap_cmn_ie *htcap; |
| 141 | struct wlan_ie_htinfo_cmn *htinfo; |
| 142 | struct wlan_ie_vhtop *vhtop; |
| 143 | |
| 144 | htcap = (struct htcap_cmn_ie *) |
| 145 | util_scan_entry_htcap(scan_params); |
| 146 | htinfo = (struct wlan_ie_htinfo_cmn *) |
| 147 | util_scan_entry_htinfo(scan_params); |
| 148 | vhtop = (struct wlan_ie_vhtop *) |
| 149 | util_scan_entry_vhtop(scan_params); |
| 150 | |
| 151 | if (!(htcap && htinfo)) |
| 152 | return WLAN_PHYMODE_11A; |
| 153 | |
| 154 | if (htcap) |
| 155 | ht_cap = le16toh(htcap->hc_cap); |
| 156 | |
| 157 | if (util_scan_entry_vhtcap(scan_params) && vhtop) { |
| 158 | switch (vhtop->vht_op_chwidth) { |
| 159 | case WLAN_VHTOP_CHWIDTH_2040: |
| 160 | if ((ht_cap & WLAN_HTCAP_C_CHWIDTH40) && |
| 161 | (htinfo->hi_extchoff == |
| 162 | WLAN_HTINFO_EXTOFFSET_ABOVE)) |
| 163 | phymode = WLAN_PHYMODE_11AC_VHT40PLUS; |
| 164 | else if ((ht_cap & WLAN_HTCAP_C_CHWIDTH40) && |
| 165 | (htinfo->hi_extchoff == |
| 166 | WLAN_HTINFO_EXTOFFSET_BELOW)) |
| 167 | phymode = WLAN_PHYMODE_11AC_VHT40MINUS; |
| 168 | else |
| 169 | phymode = WLAN_PHYMODE_11AC_VHT20; |
| 170 | break; |
| 171 | case WLAN_VHTOP_CHWIDTH_80: |
| 172 | if (WLAN_IS_REVSIG_VHT80_80(vhtop)) |
| 173 | phymode = WLAN_PHYMODE_11AC_VHT80_80; |
| 174 | else if (WLAN_IS_REVSIG_VHT160(vhtop)) |
| 175 | phymode = WLAN_PHYMODE_11AC_VHT160; |
| 176 | else |
| 177 | phymode = WLAN_PHYMODE_11AC_VHT80; |
| 178 | break; |
| 179 | case WLAN_VHTOP_CHWIDTH_160: |
| 180 | phymode = WLAN_PHYMODE_11AC_VHT160; |
| 181 | break; |
| 182 | case WLAN_VHTOP_CHWIDTH_80_80: |
| 183 | phymode = WLAN_PHYMODE_11AC_VHT80_80; |
| 184 | break; |
| 185 | default: |
| 186 | scm_err("bad channel: %d", |
| 187 | vhtop->vht_op_chwidth); |
| 188 | break; |
| 189 | } |
| 190 | } else if ((ht_cap & WLAN_HTCAP_C_CHWIDTH40) && |
| 191 | (htinfo->hi_extchoff == WLAN_HTINFO_EXTOFFSET_ABOVE)) |
| 192 | phymode = WLAN_PHYMODE_11NA_HT40PLUS; |
| 193 | else if ((ht_cap & WLAN_HTCAP_C_CHWIDTH40) && |
| 194 | (htinfo->hi_extchoff == WLAN_HTINFO_EXTOFFSET_BELOW)) |
| 195 | phymode = WLAN_PHYMODE_11NA_HT40MINUS; |
| 196 | else |
| 197 | phymode = WLAN_PHYMODE_11NA_HT20; |
| 198 | |
| 199 | return phymode; |
| 200 | } |
| 201 | |
| 202 | static enum wlan_phymode |
| 203 | util_scan_get_phymode_2g(struct scan_cache_entry *scan_params) |
| 204 | { |
| 205 | enum wlan_phymode phymode = WLAN_PHYMODE_AUTO; |
| 206 | uint16_t ht_cap = 0; |
| 207 | struct htcap_cmn_ie *htcap; |
| 208 | struct wlan_ie_htinfo_cmn *htinfo; |
| 209 | struct wlan_ie_vhtop *vhtop; |
| 210 | |
| 211 | htcap = (struct htcap_cmn_ie *) |
| 212 | util_scan_entry_htcap(scan_params); |
| 213 | htinfo = (struct wlan_ie_htinfo_cmn *) |
| 214 | util_scan_entry_htinfo(scan_params); |
| 215 | vhtop = (struct wlan_ie_vhtop *) |
| 216 | util_scan_entry_vhtop(scan_params); |
| 217 | |
| 218 | if (htcap) |
| 219 | ht_cap = le16toh(htcap->hc_cap); |
| 220 | |
| 221 | if (htcap && htinfo) { |
| 222 | if ((ht_cap & WLAN_HTCAP_C_CHWIDTH40) && |
| 223 | (htinfo->hi_extchoff == WLAN_HTINFO_EXTOFFSET_ABOVE)) |
| 224 | phymode = WLAN_PHYMODE_11NG_HT40PLUS; |
| 225 | else if ((ht_cap & WLAN_HTCAP_C_CHWIDTH40) && |
| 226 | (htinfo->hi_extchoff == WLAN_HTINFO_EXTOFFSET_BELOW)) |
| 227 | phymode = WLAN_PHYMODE_11NG_HT40MINUS; |
| 228 | else |
| 229 | phymode = WLAN_PHYMODE_11NG_HT20; |
| 230 | } else if (util_scan_entry_xrates(scan_params)) { |
| 231 | /* only 11G stations will have more than 8 rates */ |
| 232 | phymode = WLAN_PHYMODE_11G; |
| 233 | } else { |
| 234 | /* Some mischievous g-only APs do not set extended rates */ |
| 235 | if (util_scan_entry_rates(scan_params)) { |
| 236 | if (util_is_pureg_rate(&scan_params->ie_list.rates[2], |
| 237 | scan_params->ie_list.rates[1])) |
| 238 | phymode = WLAN_PHYMODE_11G; |
| 239 | else |
| 240 | phymode = WLAN_PHYMODE_11B; |
| 241 | } else { |
| 242 | phymode = WLAN_PHYMODE_11B; |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | return phymode; |
| 247 | } |
| 248 | |
| 249 | static QDF_STATUS |
| 250 | util_scan_parse_chan_switch_wrapper_ie(struct scan_cache_entry *scan_params, |
| 251 | struct ie_header *sub_ie, qdf_size_t sub_ie_len) |
| 252 | { |
| 253 | /* Walk through to check nothing is malformed */ |
| 254 | while (sub_ie_len >= sizeof(struct ie_header)) { |
| 255 | /* At least one more header is present */ |
| 256 | sub_ie_len -= sizeof(struct ie_header); |
| 257 | |
| 258 | if (sub_ie->ie_len == 0) { |
| 259 | sub_ie += 1; |
| 260 | continue; |
| 261 | } |
| 262 | if (sub_ie_len < sub_ie->ie_len) { |
| 263 | scm_err("Incomplete corrupted IE:%x", |
| 264 | WLAN_ELEMID_CHAN_SWITCH_WRAP); |
| 265 | return QDF_STATUS_E_INVAL; |
| 266 | } |
| 267 | switch (sub_ie->ie_id) { |
| 268 | case WLAN_ELEMID_COUNTRY: |
| 269 | scan_params->ie_list.country = (uint8_t *)sub_ie; |
| 270 | break; |
| 271 | case WLAN_ELEMID_WIDE_BAND_CHAN_SWITCH: |
| 272 | scan_params->ie_list.widebw = (uint8_t *)sub_ie; |
| 273 | break; |
| 274 | case WLAN_ELEMID_VHT_TX_PWR_ENVLP: |
| 275 | scan_params->ie_list.txpwrenvlp = (uint8_t *)sub_ie; |
| 276 | break; |
| 277 | } |
| 278 | /* Consume sub info element */ |
| 279 | sub_ie_len -= sub_ie->ie_len; |
| 280 | /* go to next Sub IE */ |
| 281 | sub_ie = (struct ie_header *) |
| 282 | (((uint8_t *) sub_ie) + |
| 283 | sizeof(struct ie_header) + sub_ie->ie_len); |
| 284 | } |
| 285 | |
| 286 | return QDF_STATUS_SUCCESS; |
| 287 | } |
| 288 | |
| 289 | static bool |
| 290 | util_scan_is_hidden_ssid(struct ie_ssid *ssid) |
| 291 | { |
| 292 | uint8_t i; |
| 293 | |
| 294 | /* |
| 295 | * We flag this as Hidden SSID if the Length is 0 |
| 296 | * of the SSID only contains 0's |
| 297 | */ |
| 298 | if (!ssid || !ssid->ssid_len) |
| 299 | return true; |
| 300 | |
| 301 | for (i = 0; i < ssid->ssid_len; i++) |
| 302 | if (ssid->ssid[i] != 0) |
| 303 | return false; |
| 304 | |
| 305 | /* All 0's */ |
| 306 | return true; |
| 307 | } |
| 308 | |
| 309 | static void |
| 310 | util_scan_parse_vendor_ie(struct scan_cache_entry *scan_params, |
| 311 | struct ie_header *ie) |
| 312 | { |
| 313 | |
| 314 | if (scan_params->ie_list.vendor == NULL) |
| 315 | scan_params->ie_list.vendor = (uint8_t *)ie; |
| 316 | |
| 317 | if (is_wpa_oui((uint8_t *)ie)) { |
| 318 | scan_params->ie_list.wpa = (uint8_t *)ie; |
| 319 | } else if (is_wps_oui((uint8_t *)ie)) { |
| 320 | scan_params->ie_list.wps = (uint8_t *)ie; |
| 321 | /* WCN IE should be a subset of WPS IE */ |
| 322 | if (is_wcn_oui((uint8_t *)ie)) |
| 323 | scan_params->ie_list.wcn = (uint8_t *)ie; |
| 324 | } else if (is_wme_param((uint8_t *)ie)) { |
| 325 | scan_params->ie_list.wmeparam = (uint8_t *)ie; |
| 326 | } else if (is_wme_info((uint8_t *)ie)) { |
| 327 | scan_params->ie_list.wmeinfo = (uint8_t *)ie; |
| 328 | } else if (is_atheros_oui((uint8_t *)ie)) { |
| 329 | scan_params->ie_list.athcaps = (uint8_t *)ie; |
| 330 | } else if (is_atheros_extcap_oui((uint8_t *)ie)) { |
| 331 | scan_params->ie_list.athextcaps = (uint8_t *)ie; |
| 332 | } else if (is_sfa_oui((uint8_t *)ie)) { |
| 333 | scan_params->ie_list.sfa = (uint8_t *)ie; |
| 334 | } else if (is_p2p_oui((uint8_t *)ie)) { |
| 335 | scan_params->ie_list.p2p = (uint8_t *)ie; |
| 336 | } else if (is_qca_whc_oui((uint8_t *)ie, |
| 337 | QCA_OUI_WHC_AP_INFO_SUBTYPE)) { |
| 338 | scan_params->ie_list.sonadv = (uint8_t *)ie; |
| 339 | } else if (is_ht_cap((uint8_t *)ie)) { |
| 340 | /* we only care if there isn't already an HT IE (ANA) */ |
| 341 | if (scan_params->ie_list.htcap == NULL) |
| 342 | scan_params->ie_list.htcap = |
| 343 | (uint8_t *)&(((struct wlan_vendor_ie_htcap *)ie)->ie); |
| 344 | } else if (is_ht_info((uint8_t *)ie)) { |
| 345 | /* we only care if there isn't already an HT IE (ANA) */ |
| 346 | if (scan_params->ie_list.htinfo == NULL) |
| 347 | scan_params->ie_list.htinfo = |
| 348 | (uint8_t *)&(((struct wlan_vendor_ie_htinfo *) |
| 349 | ie)->hi_ie); |
| 350 | } else if (is_interop_vht((uint8_t *)ie) && |
| 351 | !(scan_params->ie_list.vhtop)) { |
| 352 | /* location where Interop Vht Cap IE and VHT OP IE Present */ |
| 353 | scan_params->ie_list.vhtcap = (((uint8_t *)(ie)) + 7); |
| 354 | scan_params->ie_list.vhtop = (((uint8_t *)(ie)) + 21); |
| 355 | } else if (is_bwnss_oui((uint8_t *)ie)) { |
| 356 | /* |
| 357 | * Bandwidth-NSS map has sub-type & version. |
| 358 | * hence copy data just after version byte |
| 359 | */ |
| 360 | scan_params->ie_list.bwnss_map = (((uint8_t *)ie) + 8); |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | static QDF_STATUS |
| 365 | util_scan_populate_bcn_ie_list(struct scan_cache_entry *scan_params) |
| 366 | { |
| 367 | struct ie_header *ie, *sub_ie; |
| 368 | uint32_t ie_len, sub_ie_len; |
| 369 | QDF_STATUS status; |
| 370 | |
| 371 | ie_len = util_scan_entry_ie_len(scan_params); |
| 372 | ie = (struct ie_header *) |
| 373 | util_scan_entry_ie_data(scan_params); |
| 374 | |
| 375 | while (ie_len >= sizeof(struct ie_header)) { |
| 376 | ie_len -= sizeof(struct ie_header); |
| 377 | |
| 378 | if (!ie->ie_len) { |
| 379 | ie += 1; |
| 380 | continue; |
| 381 | } |
| 382 | |
| 383 | if (ie_len < ie->ie_len) { |
| 384 | scm_err("Incomplete corrupted IE:%x", |
| 385 | ie->ie_id); |
| 386 | return QDF_STATUS_E_INVAL; |
| 387 | } |
| 388 | |
| 389 | switch (ie->ie_id) { |
| 390 | case WLAN_ELEMID_SSID: |
| 391 | scan_params->ie_list.ssid = (uint8_t *)ie; |
| 392 | break; |
| 393 | case WLAN_ELEMID_RATES: |
| 394 | scan_params->ie_list.rates = (uint8_t *)ie; |
| 395 | break; |
| 396 | case WLAN_ELEMID_DSPARMS: |
| 397 | scan_params->channel.chan_idx = |
| 398 | ((struct ds_ie *)ie)->cur_chan; |
| 399 | break; |
| 400 | case WLAN_ELEMID_TIM: |
| 401 | scan_params->ie_list.tim = (uint8_t *)ie; |
| 402 | scan_params->dtim_period = |
| 403 | ((struct wlan_tim_ie *)ie)->tim_period; |
| 404 | break; |
| 405 | case WLAN_ELEMID_COUNTRY: |
| 406 | scan_params->ie_list.country = (uint8_t *)ie; |
| 407 | break; |
| 408 | case WLAN_ELEMID_QBSS_LOAD: |
| 409 | scan_params->ie_list.qbssload = (uint8_t *)ie; |
| 410 | break; |
| 411 | case WLAN_ELEMID_CHANSWITCHANN: |
| 412 | scan_params->ie_list.csa = (uint8_t *)ie; |
| 413 | break; |
| 414 | case WLAN_ELEMID_IBSSDFS: |
| 415 | scan_params->ie_list.ibssdfs = (uint8_t *)ie; |
| 416 | break; |
| 417 | case WLAN_ELEMID_QUIET: |
| 418 | scan_params->ie_list.quiet = (uint8_t *)ie; |
| 419 | break; |
| 420 | case WLAN_ELEMID_ERP: |
| 421 | scan_params->erp = ((struct erp_ie *)ie)->value; |
| 422 | break; |
| 423 | case WLAN_ELEMID_HTCAP_ANA: |
| 424 | scan_params->ie_list.htcap = |
| 425 | (uint8_t *)&(((struct htcap_ie *)ie)->ie); |
| 426 | break; |
| 427 | case WLAN_ELEMID_RSN: |
| 428 | scan_params->ie_list.rsn = (uint8_t *)ie; |
| 429 | break; |
| 430 | case WLAN_ELEMID_XRATES: |
| 431 | scan_params->ie_list.xrates = (uint8_t *)ie; |
| 432 | break; |
| 433 | case WLAN_ELEMID_EXTCHANSWITCHANN: |
| 434 | scan_params->ie_list.xcsa = (uint8_t *)ie; |
| 435 | break; |
| 436 | case WLAN_ELEMID_SECCHANOFFSET: |
| 437 | scan_params->ie_list.secchanoff = (uint8_t *)ie; |
| 438 | break; |
| 439 | case WLAN_ELEMID_HTINFO_ANA: |
| 440 | scan_params->ie_list.htinfo = |
| 441 | (uint8_t *)&(((struct wlan_ie_htinfo *) ie)->hi_ie); |
| 442 | scan_params->channel.chan_idx = |
| 443 | ((struct wlan_ie_htinfo_cmn *) |
| 444 | (scan_params->ie_list.htinfo))->hi_ctrlchannel; |
| 445 | break; |
| 446 | case WLAN_ELEMID_WAPI: |
| 447 | scan_params->ie_list.wapi = (uint8_t *)ie; |
| 448 | break; |
| 449 | case WLAN_ELEMID_XCAPS: |
| 450 | scan_params->ie_list.extcaps = (uint8_t *)ie; |
| 451 | break; |
| 452 | case WLAN_ELEMID_VHTCAP: |
| 453 | scan_params->ie_list.vhtcap = (uint8_t *)ie; |
| 454 | break; |
| 455 | case WLAN_ELEMID_VHTOP: |
| 456 | scan_params->ie_list.vhtop = (uint8_t *)ie; |
| 457 | break; |
| 458 | case WLAN_ELEMID_OP_MODE_NOTIFY: |
| 459 | scan_params->ie_list.opmode = (uint8_t *)ie; |
| 460 | break; |
| 461 | case WLAN_ELEMID_MOBILITY_DOMAIN: |
| 462 | scan_params->ie_list.mdie = (uint8_t *)ie; |
| 463 | break; |
| 464 | case WLAN_ELEMID_VENDOR: |
| 465 | util_scan_parse_vendor_ie(scan_params, |
| 466 | ie); |
| 467 | break; |
| 468 | case WLAN_ELEMID_CHAN_SWITCH_WRAP: |
| 469 | scan_params->ie_list.cswrp = (uint8_t *)ie; |
| 470 | /* Go to next sub IE */ |
| 471 | sub_ie = (struct ie_header *) |
| 472 | (((uint8_t *)ie) + sizeof(struct ie_header)); |
| 473 | sub_ie_len = ie->ie_len; |
| 474 | status = |
| 475 | util_scan_parse_chan_switch_wrapper_ie( |
| 476 | scan_params, sub_ie, sub_ie_len); |
| 477 | if (QDF_IS_STATUS_ERROR(status)) { |
| 478 | scm_err("failed to parse chan_switch_wrapper_ie"); |
| 479 | return status; |
| 480 | } |
| 481 | break; |
| 482 | default: |
| 483 | break; |
| 484 | } |
| 485 | |
| 486 | /* Consume info element */ |
| 487 | ie_len -= ie->ie_len; |
| 488 | /* Go to next IE */ |
| 489 | ie = (struct ie_header *) |
| 490 | (((uint8_t *) ie) + |
| 491 | sizeof(struct ie_header) + |
| 492 | ie->ie_len); |
| 493 | } |
| 494 | |
| 495 | return QDF_STATUS_SUCCESS; |
| 496 | } |
| 497 | |
| 498 | struct scan_cache_entry * |
| 499 | util_scan_unpack_beacon_frame(uint8_t *frame, |
| 500 | qdf_size_t frame_len, uint32_t frm_subtype, |
| 501 | struct mgmt_rx_event_params *rx_param) |
| 502 | { |
| 503 | struct wlan_frame_hdr *hdr; |
| 504 | struct wlan_bcn_frame *bcn; |
| 505 | QDF_STATUS status; |
| 506 | struct ie_ssid *ssid; |
| 507 | struct scan_cache_entry *scan_entry = NULL; |
| 508 | |
| 509 | scan_entry = qdf_mem_malloc(sizeof(*scan_entry)); |
| 510 | if (!scan_entry) { |
| 511 | scm_err("failed to allocate memory for scan_entry"); |
| 512 | return NULL; |
| 513 | } |
| 514 | scan_entry->raw_frame.ptr = |
| 515 | qdf_mem_malloc(frame_len); |
| 516 | if (!scan_entry->raw_frame.ptr) { |
| 517 | scm_err("failed to allocate memory for frame"); |
| 518 | qdf_mem_free(scan_entry); |
| 519 | return NULL; |
| 520 | } |
| 521 | |
| 522 | bcn = (struct wlan_bcn_frame *) |
| 523 | (frame + sizeof(*hdr)); |
| 524 | hdr = (struct wlan_frame_hdr *)frame; |
| 525 | |
| 526 | scan_entry->frm_subtype = frm_subtype; |
| 527 | qdf_mem_copy(scan_entry->bssid.bytes, |
| 528 | hdr->i_addr3, QDF_MAC_ADDR_SIZE); |
| 529 | /* Scr addr */ |
| 530 | qdf_mem_copy(scan_entry->mac_addr.bytes, |
| 531 | hdr->i_addr2, QDF_MAC_ADDR_SIZE); |
| 532 | scan_entry->seq_num = |
| 533 | (le16toh(*(uint16_t *)hdr->i_seq) >> WLAN_SEQ_SEQ_SHIFT); |
| 534 | |
| 535 | scan_entry->rssi_raw = rx_param->rssi; |
| 536 | scan_entry->tsf_delta = rx_param->tsf_delta; |
| 537 | |
| 538 | /* store jiffies */ |
| 539 | scan_entry->rrm_parent_tsf = (u_int32_t) qdf_system_ticks(); |
| 540 | |
| 541 | scan_entry->bcn_int = le16toh(bcn->beacon_interval); |
| 542 | |
| 543 | /* |
| 544 | * In case if the beacon dosnt have |
| 545 | * valid beacon interval falback to def |
| 546 | */ |
| 547 | if (!scan_entry->bcn_int) |
| 548 | scan_entry->bcn_int = 100; |
| 549 | scan_entry->cap_info.value = le16toh(bcn->capability.value); |
| 550 | qdf_mem_copy(scan_entry->tsf_info.data, |
| 551 | bcn->timestamp, 8); |
| 552 | scan_entry->erp = ERP_NON_ERP_PRESENT; |
| 553 | |
| 554 | |
| 555 | scan_entry->rssi_timestamp = |
| 556 | scan_entry->scan_entry_time = |
| 557 | qdf_mc_timer_get_system_time(); |
| 558 | |
| 559 | scan_entry->raw_frame.len = frame_len; |
| 560 | qdf_mem_copy(scan_entry->raw_frame.ptr, |
| 561 | frame, frame_len); |
| 562 | status = util_scan_populate_bcn_ie_list(scan_entry); |
| 563 | if (QDF_IS_STATUS_ERROR(status)) { |
| 564 | scm_err("failed to parse beacon IE"); |
| 565 | qdf_mem_free(scan_entry->raw_frame.ptr); |
| 566 | qdf_mem_free(scan_entry); |
| 567 | return NULL; |
| 568 | } |
| 569 | |
| 570 | if (!scan_entry->ie_list.rates) { |
| 571 | qdf_mem_free(scan_entry->raw_frame.ptr); |
| 572 | qdf_mem_free(scan_entry); |
| 573 | return NULL; |
| 574 | } |
| 575 | |
| 576 | ssid = (struct ie_ssid *) |
| 577 | scan_entry->ie_list.ssid; |
| 578 | |
| 579 | if (ssid && (ssid->ssid_len > WLAN_SSID_MAX_LEN)) { |
| 580 | qdf_mem_free(scan_entry->raw_frame.ptr); |
| 581 | qdf_mem_free(scan_entry); |
| 582 | return NULL; |
| 583 | } |
| 584 | |
| 585 | if (scan_entry->ie_list.p2p) |
| 586 | scan_entry->is_p2p = true; |
| 587 | |
| 588 | /* If no channel info is present in beacon use meta channel */ |
| 589 | if (!scan_entry->channel.chan_idx) { |
| 590 | scan_entry->channel.chan_idx = |
| 591 | rx_param->channel; |
| 592 | } else if (rx_param->channel != |
| 593 | scan_entry->channel.chan_idx) { |
| 594 | scan_entry->channel_mismatch = true; |
| 595 | } |
| 596 | |
| 597 | if (util_scan_is_hidden_ssid(ssid)) { |
| 598 | scan_entry->ie_list.ssid = NULL; |
| 599 | } else { |
| 600 | qdf_mem_copy(scan_entry->ssid.ssid, |
| 601 | ssid->ssid, WLAN_SSID_MAX_LEN); |
| 602 | scan_entry->ssid.length = ssid->ssid_len; |
| 603 | scan_entry->hidden_ssid_timestamp = |
| 604 | scan_entry->scan_entry_time; |
| 605 | } |
| 606 | |
| 607 | if (WLAN_CHAN_IS_5GHZ(scan_entry->channel.chan_idx)) |
| 608 | scan_entry->phy_mode = util_scan_get_phymode_5g(scan_entry); |
| 609 | else |
| 610 | scan_entry->phy_mode = util_scan_get_phymode_2g(scan_entry); |
| 611 | |
| 612 | /* TODO calculate channel struct */ |
| 613 | return scan_entry; |
| 614 | } |