Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1 | /* |
Rajeev Kumar Sirasanagandla | 2bb30b8 | 2019-01-07 22:30:16 +0530 | [diff] [blame] | 2 | * Copyright (c) 2012-2019 The Linux Foundation. All rights reserved. |
Kiet Lam | 842dad0 | 2014-02-18 18:44:02 -0800 | [diff] [blame] | 3 | * |
| 4 | * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| 5 | * |
| 6 | * |
| 7 | * Permission to use, copy, modify, and/or distribute this software for |
| 8 | * any purpose with or without fee is hereby granted, provided that the |
| 9 | * above copyright notice and this permission notice appear in all |
| 10 | * copies. |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 13 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 14 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 15 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 16 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 17 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 18 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 19 | * PERFORMANCE OF THIS SOFTWARE. |
Gopichand Nakkala | 92f07d8 | 2013-01-08 21:16:34 -0800 | [diff] [blame] | 20 | */ |
Kiet Lam | 842dad0 | 2014-02-18 18:44:02 -0800 | [diff] [blame] | 21 | |
| 22 | /* |
| 23 | * This file was originally distributed by Qualcomm Atheros, Inc. |
| 24 | * under proprietary terms before Copyright ownership was assigned |
| 25 | * to the Linux Foundation. |
| 26 | */ |
| 27 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 28 | /**======================================================================== |
| 29 | |
| 30 | \file wlan_hdd_scan.c |
| 31 | |
| 32 | \brief WLAN Host Device Driver implementation |
| 33 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 34 | |
| 35 | ========================================================================*/ |
| 36 | |
| 37 | /**========================================================================= |
| 38 | |
| 39 | EDIT HISTORY FOR FILE |
| 40 | |
| 41 | |
| 42 | This section contains comments describing changes made to the module. |
| 43 | Notice that changes are listed in reverse chronological order. |
| 44 | |
| 45 | |
| 46 | $Header:$ $DateTime: $ $Author: $ |
| 47 | |
| 48 | |
| 49 | when who what, where, why |
| 50 | -------- --- -------------------------------------------------------- |
| 51 | 04/5/09 Shailender Created module. |
| 52 | |
| 53 | ==========================================================================*/ |
| 54 | /* To extract the Scan results */ |
| 55 | |
| 56 | /* Add a stream event */ |
| 57 | |
| 58 | #include <wlan_qct_driver.h> |
| 59 | #include <wlan_hdd_includes.h> |
| 60 | #include <vos_api.h> |
| 61 | #include <palTypes.h> |
| 62 | #include <aniGlobal.h> |
| 63 | #include <dot11f.h> |
| 64 | #ifdef WLAN_BTAMP_FEATURE |
| 65 | #include "bap_hdd_misc.h" |
| 66 | #endif |
| 67 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 68 | #include <linux/wireless.h> |
| 69 | #include <net/cfg80211.h> |
Mahesh A Saptasagar | d68eb28 | 2014-12-17 14:20:19 +0530 | [diff] [blame] | 70 | #include <vos_sched.h> |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 71 | |
| 72 | #define WEXT_CSCAN_HEADER "CSCAN S\x01\x00\x00S\x00" |
| 73 | #define WEXT_CSCAN_HEADER_SIZE 12 |
| 74 | #define WEXT_CSCAN_SSID_SECTION 'S' |
| 75 | #define WEXT_CSCAN_CHANNEL_SECTION 'C' |
| 76 | #define WEXT_CSCAN_NPROBE_SECTION 'N' |
| 77 | #define WEXT_CSCAN_ACTV_DWELL_SECTION 'A' |
| 78 | #define WEXT_CSCAN_PASV_DWELL_SECTION 'P' |
| 79 | #define WEXT_CSCAN_HOME_DWELL_SECTION 'H' |
| 80 | #define WEXT_CSCAN_TYPE_SECTION 'T' |
| 81 | #define WEXT_CSCAN_PENDING_SECTION 'O' |
| 82 | #define WEXT_CSCAN_TYPE_DEFAULT 0 |
| 83 | #define WEXT_CSCAN_TYPE_PASSIVE 1 |
| 84 | #define WEXT_CSCAN_PASV_DWELL_TIME 130 |
| 85 | #define WEXT_CSCAN_PASV_DWELL_TIME_DEF 250 |
| 86 | #define WEXT_CSCAN_PASV_DWELL_TIME_MAX 3000 |
| 87 | #define WEXT_CSCAN_HOME_DWELL_TIME 130 |
| 88 | #define MAX_RATES 12 |
| 89 | |
| 90 | #define WEXT_CSCAN_SCAN_DONE_WAIT_TIME 2000 |
| 91 | |
| 92 | typedef struct hdd_scan_info{ |
| 93 | struct net_device *dev; |
| 94 | struct iw_request_info *info; |
| 95 | char *start; |
| 96 | char *end; |
| 97 | } hdd_scan_info_t, *hdd_scan_info_tp; |
| 98 | |
| 99 | static v_S31_t hdd_TranslateABGRateToMbpsRate(v_U8_t *pFcRate) |
| 100 | { |
| 101 | |
| 102 | /** Slightly more sophisticated processing has to take place here. |
| 103 | Basic rates are rounded DOWN. HT rates are rounded UP.*/ |
| 104 | return ( (( ((v_S31_t) *pFcRate) & 0x007f) * 1000000) / 2); |
| 105 | } |
| 106 | |
| 107 | |
| 108 | static eHalStatus hdd_AddIwStreamEvent(int cmd, int length, char* data, hdd_scan_info_t *pscanInfo, char **last_event, char **current_event ) |
| 109 | { |
| 110 | struct iw_event event; |
| 111 | |
| 112 | *last_event = *current_event; |
| 113 | vos_mem_zero(&event, sizeof (struct iw_event)); |
| 114 | event.cmd = cmd; |
| 115 | event.u.data.flags = 1; |
| 116 | event.u.data.length = length; |
| 117 | *current_event = iwe_stream_add_point (pscanInfo->info,*current_event, pscanInfo->end, &event, data); |
| 118 | |
| 119 | if(*last_event == *current_event) |
| 120 | { |
| 121 | /* no space to add event */ |
c_hpothu | 7f63e88 | 2013-10-02 19:13:35 +0530 | [diff] [blame] | 122 | hddLog( LOGW, "%s: no space left to add event", __func__); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 123 | return -E2BIG; /* Error code, may be E2BIG */ |
| 124 | } |
| 125 | |
| 126 | return 0; |
| 127 | } |
| 128 | |
| 129 | /**--------------------------------------------------------------------------- |
| 130 | |
| 131 | \brief hdd_GetWPARSNIEs() - |
| 132 | |
| 133 | This function extract the WPA/RSN IE from the Bss descriptor IEs fields |
| 134 | |
| 135 | \param - ieFields - Pointer to the Bss Descriptor IEs. |
| 136 | - ie_length - IE Length. |
| 137 | - last_event -Points to the last event. |
| 138 | - current_event - Points to the |
| 139 | \return - 0 for success, non zero for failure |
| 140 | |
| 141 | --------------------------------------------------------------------------*/ |
| 142 | |
| 143 | |
| 144 | /* Extract the WPA and/or RSN IEs */ |
| 145 | static eHalStatus hdd_GetWPARSNIEs( v_U8_t *ieFields, v_U16_t ie_length, char **last_event, char **current_event, hdd_scan_info_t *pscanInfo ) |
| 146 | { |
| 147 | v_U8_t eid, elen, *element; |
| 148 | v_U16_t tie_length=0; |
| 149 | |
| 150 | ENTER(); |
| 151 | |
| 152 | element = ieFields; |
| 153 | tie_length = ie_length; |
| 154 | |
| 155 | while( tie_length > 2 && element != NULL ) |
| 156 | { |
| 157 | eid = element[0]; |
| 158 | elen = element[1]; |
| 159 | |
| 160 | /*If element length is greater than total remaining ie length, |
| 161 | *break the loop*/ |
| 162 | if ((elen+2) > tie_length) |
| 163 | break; |
| 164 | |
| 165 | switch(eid) |
| 166 | { |
| 167 | case DOT11F_EID_WPA: |
| 168 | case DOT11F_EID_RSN: |
| 169 | #ifdef FEATURE_WLAN_WAPI |
| 170 | case DOT11F_EID_WAPI: |
| 171 | #endif |
| 172 | if(hdd_AddIwStreamEvent( IWEVGENIE, elen+2, (char*)element, pscanInfo, last_event, current_event ) < 0 ) |
| 173 | return -E2BIG; |
| 174 | break; |
| 175 | |
| 176 | default: |
| 177 | break; |
| 178 | } |
| 179 | |
| 180 | /* Next element */ |
| 181 | tie_length -= (2 + elen); |
| 182 | element += 2 + elen; |
| 183 | } |
| 184 | |
| 185 | return 0; |
| 186 | } |
| 187 | |
| 188 | /**--------------------------------------------------------------------------- |
| 189 | |
| 190 | \brief hdd_IndicateScanResult() - |
| 191 | |
| 192 | This function returns the scan results to the wpa_supplicant |
| 193 | |
| 194 | \param - scanInfo - Pointer to the scan info structure. |
| 195 | - descriptor - Pointer to the Bss Descriptor. |
| 196 | |
| 197 | \return - 0 for success, non zero for failure |
| 198 | |
| 199 | --------------------------------------------------------------------------*/ |
| 200 | #define MAX_CUSTOM_LEN 64 |
| 201 | static eHalStatus hdd_IndicateScanResult(hdd_scan_info_t *scanInfo, tCsrScanResultInfo *scan_result) |
| 202 | { |
| 203 | hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(scanInfo->dev) ; |
| 204 | tHalHandle hHal = WLAN_HDD_GET_HAL_CTX(pAdapter); |
| 205 | tSirBssDescription *descriptor = &scan_result->BssDescriptor; |
| 206 | struct iw_event event; |
| 207 | char *current_event = scanInfo->start; |
| 208 | char *end = scanInfo->end; |
| 209 | char *last_event; |
| 210 | char *current_pad; |
| 211 | v_U16_t ie_length = 0; |
| 212 | v_U16_t capabilityInfo; |
| 213 | char *modestr; |
| 214 | int error; |
| 215 | char custom[MAX_CUSTOM_LEN]; |
| 216 | char *p; |
Pragaspathi Thilagaraj | b2041e8 | 2018-03-28 17:14:02 +0530 | [diff] [blame] | 217 | tANI_U32 status; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 218 | |
Arif Hussain | 24bafea | 2013-11-15 15:10:03 -0800 | [diff] [blame] | 219 | hddLog( LOG1, "hdd_IndicateScanResult " MAC_ADDRESS_STR, |
| 220 | MAC_ADDR_ARRAY(descriptor->bssId)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 221 | |
| 222 | error = 0; |
| 223 | last_event = current_event; |
| 224 | vos_mem_zero(&event, sizeof (event)); |
| 225 | |
| 226 | /* BSSID */ |
| 227 | event.cmd = SIOCGIWAP; |
| 228 | event.u.ap_addr.sa_family = ARPHRD_ETHER; |
| 229 | vos_mem_copy (event.u.ap_addr.sa_data, descriptor->bssId, |
| 230 | sizeof (descriptor->bssId)); |
| 231 | current_event = iwe_stream_add_event(scanInfo->info,current_event, end, |
| 232 | &event, IW_EV_ADDR_LEN); |
| 233 | |
| 234 | if (last_event == current_event) |
| 235 | { |
| 236 | /* no space to add event */ |
| 237 | /* Error code may be E2BIG */ |
Sushant Kaushik | 125ae69 | 2014-11-25 17:38:48 +0530 | [diff] [blame] | 238 | hddLog(LOGE, "hdd_IndicateScanResult: no space for SIOCGIWAP "); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 239 | return -E2BIG; |
| 240 | } |
| 241 | |
| 242 | last_event = current_event; |
| 243 | vos_mem_zero(&event, sizeof (struct iw_event)); |
| 244 | |
| 245 | /* Protocol Name */ |
| 246 | event.cmd = SIOCGIWNAME; |
| 247 | |
| 248 | switch (descriptor->nwType) |
| 249 | { |
| 250 | case eSIR_11A_NW_TYPE: |
| 251 | modestr = "a"; |
| 252 | break; |
| 253 | case eSIR_11B_NW_TYPE: |
| 254 | modestr = "b"; |
| 255 | break; |
| 256 | case eSIR_11G_NW_TYPE: |
| 257 | modestr = "g"; |
| 258 | break; |
| 259 | case eSIR_11N_NW_TYPE: |
| 260 | modestr = "n"; |
| 261 | break; |
| 262 | default: |
| 263 | hddLog( LOGW, "%s: Unknown network type [%d]", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 264 | __func__, descriptor->nwType); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 265 | modestr = "?"; |
| 266 | break; |
| 267 | } |
| 268 | snprintf(event.u.name, IFNAMSIZ, "IEEE 802.11%s", modestr); |
| 269 | current_event = iwe_stream_add_event(scanInfo->info,current_event, end, |
| 270 | &event, IW_EV_CHAR_LEN); |
| 271 | |
| 272 | if (last_event == current_event) |
| 273 | { /* no space to add event */ |
Sushant Kaushik | 125ae69 | 2014-11-25 17:38:48 +0530 | [diff] [blame] | 274 | hddLog( LOGE, "hdd_IndicateScanResult: no space for SIOCGIWNAME"); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 275 | /* Error code, may be E2BIG */ |
| 276 | return -E2BIG; |
| 277 | } |
| 278 | |
| 279 | last_event = current_event; |
| 280 | vos_mem_zero( &event, sizeof (struct iw_event)); |
| 281 | |
| 282 | /*Freq*/ |
| 283 | event.cmd = SIOCGIWFREQ; |
| 284 | |
| 285 | event.u.freq.m = descriptor->channelId; |
| 286 | event.u.freq.e = 0; |
| 287 | event.u.freq.i = 0; |
| 288 | current_event = iwe_stream_add_event(scanInfo->info,current_event, end, |
| 289 | &event, IW_EV_FREQ_LEN); |
| 290 | |
| 291 | if (last_event == current_event) |
| 292 | { /* no space to add event */ |
Sushant Kaushik | 125ae69 | 2014-11-25 17:38:48 +0530 | [diff] [blame] | 293 | hddLog( LOGE, "hdd_IndicateScanResult: no space for SIOCGIWFREQ"); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 294 | return -E2BIG; |
| 295 | } |
| 296 | |
| 297 | last_event = current_event; |
| 298 | vos_mem_zero( &event, sizeof (struct iw_event)); |
| 299 | |
| 300 | /* BSS Mode */ |
| 301 | event.cmd = SIOCGIWMODE; |
| 302 | |
| 303 | capabilityInfo = descriptor->capabilityInfo; |
| 304 | |
| 305 | if (SIR_MAC_GET_ESS(capabilityInfo)) |
| 306 | { |
| 307 | event.u.mode = IW_MODE_INFRA; |
| 308 | } |
| 309 | else if (SIR_MAC_GET_IBSS(capabilityInfo)) |
| 310 | { |
| 311 | event.u.mode = IW_MODE_ADHOC; |
| 312 | } |
| 313 | else |
| 314 | { |
| 315 | /* neither ESS or IBSS */ |
| 316 | event.u.mode = IW_MODE_AUTO; |
| 317 | } |
| 318 | |
| 319 | current_event = iwe_stream_add_event(scanInfo->info,current_event, end, |
| 320 | &event, IW_EV_UINT_LEN); |
| 321 | |
| 322 | if (last_event == current_event) |
| 323 | { /* no space to add event */ |
Sushant Kaushik | 125ae69 | 2014-11-25 17:38:48 +0530 | [diff] [blame] | 324 | hddLog(LOGE, "hdd_IndicateScanResult: no space for SIOCGIWMODE"); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 325 | return -E2BIG; |
| 326 | } |
| 327 | /* To extract SSID */ |
| 328 | ie_length = GET_IE_LEN_IN_BSS( descriptor->length ); |
| 329 | |
| 330 | if (ie_length > 0) |
| 331 | { |
Madan Mohan Koyyalamudi | 729972c | 2012-10-21 12:39:24 -0700 | [diff] [blame] | 332 | /* dot11BeaconIEs is a large struct, so we make it static to |
| 333 | avoid stack overflow. This API is only invoked via ioctl, |
| 334 | so it is serialized by the kernel rtnl_lock and hence does |
| 335 | not need to be reentrant */ |
| 336 | static tDot11fBeaconIEs dot11BeaconIEs; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 337 | tDot11fIESSID *pDot11SSID; |
| 338 | tDot11fIESuppRates *pDot11SuppRates; |
| 339 | tDot11fIEExtSuppRates *pDot11ExtSuppRates; |
| 340 | tDot11fIEHTCaps *pDot11IEHTCaps; |
| 341 | int numBasicRates = 0; |
| 342 | int maxNumRates = 0; |
| 343 | |
| 344 | pDot11IEHTCaps = NULL; |
| 345 | |
Pragaspathi Thilagaraj | b2041e8 | 2018-03-28 17:14:02 +0530 | [diff] [blame] | 346 | status = dot11fUnpackBeaconIEs ((tpAniSirGlobal) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 347 | hHal, (tANI_U8 *) descriptor->ieFields, ie_length, &dot11BeaconIEs); |
Pragaspathi Thilagaraj | b2041e8 | 2018-03-28 17:14:02 +0530 | [diff] [blame] | 348 | if (DOT11F_FAILED(status)) |
| 349 | { |
| 350 | hddLog(LOGE, |
| 351 | FL("unpack failed for Beacon IE status:(0x%08x)"), |
| 352 | status); |
| 353 | return -EINVAL; |
| 354 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 355 | |
| 356 | pDot11SSID = &dot11BeaconIEs.SSID; |
| 357 | |
| 358 | |
| 359 | if (pDot11SSID->present ) { |
| 360 | last_event = current_event; |
| 361 | vos_mem_zero (&event, sizeof (struct iw_event)); |
| 362 | |
| 363 | event.cmd = SIOCGIWESSID; |
| 364 | event.u.data.flags = 1; |
| 365 | event.u.data.length = scan_result->ssId.length; |
| 366 | current_event = iwe_stream_add_point (scanInfo->info,current_event, end, |
| 367 | &event, (char *)scan_result->ssId.ssId); |
| 368 | |
| 369 | if(last_event == current_event) |
| 370 | { /* no space to add event */ |
Sushant Kaushik | 125ae69 | 2014-11-25 17:38:48 +0530 | [diff] [blame] | 371 | hddLog( LOGE, "hdd_IndicateScanResult: no space for SIOCGIWESSID"); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 372 | return -E2BIG; |
| 373 | } |
| 374 | } |
| 375 | |
| 376 | if( hdd_GetWPARSNIEs( ( tANI_U8 *) descriptor->ieFields, ie_length, &last_event, ¤t_event, scanInfo ) < 0 ) |
| 377 | { |
Sushant Kaushik | 125ae69 | 2014-11-25 17:38:48 +0530 | [diff] [blame] | 378 | hddLog( LOGE, "hdd_IndicateScanResult: no space for SIOCGIWESSID"); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 379 | return -E2BIG; |
| 380 | } |
| 381 | |
| 382 | last_event = current_event; |
| 383 | current_pad = current_event + IW_EV_LCP_LEN; |
| 384 | vos_mem_zero( &event, sizeof (struct iw_event)); |
| 385 | |
| 386 | /*Rates*/ |
| 387 | event.cmd = SIOCGIWRATE; |
| 388 | |
| 389 | |
| 390 | pDot11SuppRates = &dot11BeaconIEs.SuppRates; |
| 391 | |
| 392 | if (pDot11SuppRates->present ) |
| 393 | { |
| 394 | int i; |
| 395 | |
Madan Mohan Koyyalamudi | 4e31b13 | 2012-11-02 13:13:52 -0700 | [diff] [blame] | 396 | numBasicRates = pDot11SuppRates->num_rates; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 397 | for (i=0; i<pDot11SuppRates->num_rates; i++) |
| 398 | { |
| 399 | if (0 != (pDot11SuppRates->rates[i] & 0x7F)) |
| 400 | { |
| 401 | event.u.bitrate.value = hdd_TranslateABGRateToMbpsRate ( |
| 402 | &pDot11SuppRates->rates[i]); |
| 403 | |
| 404 | current_pad = iwe_stream_add_value (scanInfo->info,current_event, |
| 405 | current_pad, end, &event, IW_EV_PARAM_LEN); |
| 406 | } |
| 407 | } |
| 408 | |
| 409 | } |
| 410 | |
| 411 | pDot11ExtSuppRates = &dot11BeaconIEs.ExtSuppRates; |
| 412 | |
| 413 | if (pDot11ExtSuppRates->present ) |
| 414 | { |
| 415 | int i,no_of_rates; |
| 416 | maxNumRates = numBasicRates + pDot11ExtSuppRates->num_rates; |
| 417 | |
| 418 | /* Check to make sure the total number of rates |
| 419 | doesn't exceed IW_MAX_BITRATES */ |
| 420 | |
| 421 | maxNumRates = VOS_MIN(maxNumRates , IW_MAX_BITRATES); |
| 422 | |
| 423 | if((maxNumRates - numBasicRates) > MAX_RATES) |
| 424 | { |
| 425 | no_of_rates = MAX_RATES; |
| 426 | hddLog( LOGW, "Accessing array out of bound that array is pDot11ExtSuppRates->rates "); |
| 427 | } |
| 428 | else |
| 429 | { |
| 430 | no_of_rates = maxNumRates - numBasicRates; |
| 431 | } |
| 432 | for ( i=0; i< no_of_rates ; i++ ) |
| 433 | { |
| 434 | if (0 != (pDot11ExtSuppRates->rates[i] & 0x7F)) |
| 435 | { |
| 436 | event.u.bitrate.value = hdd_TranslateABGRateToMbpsRate ( |
| 437 | &pDot11ExtSuppRates->rates[i]); |
| 438 | |
| 439 | current_pad = iwe_stream_add_value (scanInfo->info,current_event, |
| 440 | current_pad, end, &event, IW_EV_PARAM_LEN); |
| 441 | } |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | |
| 446 | if ((current_pad - current_event) >= IW_EV_LCP_LEN) |
| 447 | { |
| 448 | current_event = current_pad; |
| 449 | } |
| 450 | else |
| 451 | { |
| 452 | if (last_event == current_event) |
| 453 | { /* no space to add event */ |
Sushant Kaushik | 125ae69 | 2014-11-25 17:38:48 +0530 | [diff] [blame] | 454 | hddLog( LOGE, "hdd_IndicateScanResult: no space for SIOCGIWRATE"); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 455 | return -E2BIG; |
| 456 | } |
| 457 | } |
| 458 | |
| 459 | last_event = current_event; |
| 460 | vos_mem_zero (&event, sizeof (struct iw_event)); |
| 461 | |
| 462 | |
| 463 | event.cmd = SIOCGIWENCODE; |
| 464 | |
| 465 | if (SIR_MAC_GET_PRIVACY(capabilityInfo)) |
| 466 | { |
| 467 | event.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; |
| 468 | } |
| 469 | else |
| 470 | { |
| 471 | event.u.data.flags = IW_ENCODE_DISABLED; |
| 472 | } |
| 473 | event.u.data.length = 0; |
| 474 | |
| 475 | current_event = iwe_stream_add_point(scanInfo->info,current_event, end, &event, (char *)pDot11SSID->ssid); |
| 476 | |
| 477 | |
| 478 | if(last_event == current_event) |
| 479 | { /* no space to add event |
| 480 | Error code, may be E2BIG */ |
Sushant Kaushik | 125ae69 | 2014-11-25 17:38:48 +0530 | [diff] [blame] | 481 | hddLog( LOGE, "hdd_IndicateScanResult: no space for SIOCGIWENCODE"); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 482 | return -E2BIG; |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | last_event = current_event; |
| 487 | vos_mem_zero( &event, sizeof (struct iw_event)); |
| 488 | |
| 489 | /*RSSI*/ |
| 490 | event.cmd = IWEVQUAL; |
| 491 | event.u.qual.qual = descriptor->rssi; |
| 492 | event.u.qual.noise = descriptor->sinr; |
| 493 | |
| 494 | /*To keep the rssi icon of the connected AP in the scan window |
| 495 | *and the rssi icon of the wireless networks in sync */ |
| 496 | if (( eConnectionState_Associated == |
| 497 | pAdapter->sessionCtx.station.conn_info.connState ) && |
| 498 | ( VOS_TRUE == vos_mem_compare(descriptor->bssId, |
| 499 | pAdapter->sessionCtx.station.conn_info.bssId, |
| 500 | WNI_CFG_BSSID_LEN))) |
| 501 | { |
| 502 | event.u.qual.level = pAdapter->rssi; |
| 503 | } |
| 504 | else |
| 505 | { |
| 506 | event.u.qual.level = VOS_MIN ((descriptor->rssi + descriptor->sinr), 0); |
| 507 | } |
| 508 | |
| 509 | event.u.qual.updated = IW_QUAL_ALL_UPDATED; |
| 510 | |
| 511 | current_event = iwe_stream_add_event(scanInfo->info,current_event, |
| 512 | end, &event, IW_EV_QUAL_LEN); |
| 513 | |
| 514 | if(last_event == current_event) |
| 515 | { /* no space to add event */ |
Sushant Kaushik | 125ae69 | 2014-11-25 17:38:48 +0530 | [diff] [blame] | 516 | hddLog( LOGE, "hdd_IndicateScanResult: no space for IWEVQUAL"); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 517 | return -E2BIG; |
| 518 | } |
| 519 | |
| 520 | |
| 521 | /* AGE */ |
| 522 | event.cmd = IWEVCUSTOM; |
| 523 | p = custom; |
Sameer Thalappil | b0a3023 | 2013-09-27 15:37:48 -0700 | [diff] [blame] | 524 | p += scnprintf(p, MAX_CUSTOM_LEN, " Age: %lu", |
Deepthi Gowri | 2f43513 | 2016-05-18 19:30:17 +0530 | [diff] [blame] | 525 | vos_timer_get_system_time() - descriptor->nReceivedTime); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 526 | event.u.data.length = p - custom; |
| 527 | current_event = iwe_stream_add_point (scanInfo->info,current_event, end, |
| 528 | &event, custom); |
| 529 | if(last_event == current_event) |
| 530 | { /* no space to add event */ |
Sushant Kaushik | 125ae69 | 2014-11-25 17:38:48 +0530 | [diff] [blame] | 531 | hddLog( LOGE, "hdd_IndicateScanResult: no space for IWEVCUSTOM (age)"); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 532 | return -E2BIG; |
| 533 | } |
| 534 | |
| 535 | scanInfo->start = current_event; |
| 536 | |
| 537 | return 0; |
| 538 | } |
| 539 | |
| 540 | /**--------------------------------------------------------------------------- |
| 541 | |
Siddharth Bhal | 7697221 | 2014-10-15 16:22:51 +0530 | [diff] [blame] | 542 | \brief hdd_processSpoofMacAddrRequest() - |
| 543 | |
| 544 | The function is called from scan completion callback and from |
| 545 | cfg80211 vendor command |
| 546 | |
| 547 | \param - pHddCtx - Pointer to the HDD Context. |
| 548 | |
| 549 | \return - 0 for success, non zero for failure |
| 550 | |
| 551 | --------------------------------------------------------------------------*/ |
| 552 | |
Padma, Santhosh Kumar | 9cd3833 | 2015-11-17 12:18:10 +0530 | [diff] [blame] | 553 | void __hdd_processSpoofMacAddrRequest(struct work_struct *work) |
Siddharth Bhal | 7697221 | 2014-10-15 16:22:51 +0530 | [diff] [blame] | 554 | { |
Padma, Santhosh Kumar | 9cd3833 | 2015-11-17 12:18:10 +0530 | [diff] [blame] | 555 | hdd_context_t *pHddCtx = |
| 556 | container_of(to_delayed_work(work), hdd_context_t, spoof_mac_addr_work); |
Siddharth Bhal | 7697221 | 2014-10-15 16:22:51 +0530 | [diff] [blame] | 557 | |
| 558 | ENTER(); |
| 559 | |
Padma, Santhosh Kumar | 9cd3833 | 2015-11-17 12:18:10 +0530 | [diff] [blame] | 560 | if (wlan_hdd_validate_context(pHddCtx)) |
| 561 | return; |
| 562 | |
Siddharth Bhal | 7697221 | 2014-10-15 16:22:51 +0530 | [diff] [blame] | 563 | mutex_lock(&pHddCtx->spoofMacAddr.macSpoofingLock); |
| 564 | |
| 565 | if (pHddCtx->spoofMacAddr.isEnabled) { |
| 566 | if (VOS_STATUS_SUCCESS != vos_randomize_n_bytes( |
| 567 | (void *)(&pHddCtx->spoofMacAddr.randomMacAddr.bytes[3]), |
| 568 | VOS_MAC_ADDR_LAST_3_BYTES)) { |
Siddharth Bhal | 7697221 | 2014-10-15 16:22:51 +0530 | [diff] [blame] | 569 | pHddCtx->spoofMacAddr.isEnabled = FALSE; |
| 570 | mutex_unlock(&pHddCtx->spoofMacAddr.macSpoofingLock); |
Hema Aparna Medicharla | 8bb6f78 | 2015-03-09 12:35:05 +0530 | [diff] [blame] | 571 | hddLog(LOGE, FL("Failed to generate random Mac Addr")); |
Padma, Santhosh Kumar | 9cd3833 | 2015-11-17 12:18:10 +0530 | [diff] [blame] | 572 | return; |
Siddharth Bhal | 7697221 | 2014-10-15 16:22:51 +0530 | [diff] [blame] | 573 | } |
| 574 | } |
| 575 | |
| 576 | hddLog(LOG1, FL("New Mac Addr Generated "MAC_ADDRESS_STR), |
| 577 | MAC_ADDR_ARRAY(pHddCtx->spoofMacAddr.randomMacAddr.bytes)); |
| 578 | |
| 579 | if (pHddCtx->scan_info.mScanPending != TRUE) |
| 580 | { |
| 581 | pHddCtx->spoofMacAddr.isReqDeferred = FALSE; |
| 582 | hddLog(LOG1, FL("Processing Spoof request now")); |
| 583 | /* Inform SME about spoof mac addr request*/ |
| 584 | if ( eHAL_STATUS_SUCCESS != sme_SpoofMacAddrReq(pHddCtx->hHal, |
Rajeev Kumar Sirasanagandla | 2bb30b8 | 2019-01-07 22:30:16 +0530 | [diff] [blame] | 585 | &pHddCtx->spoofMacAddr.randomMacAddr, true)) |
Siddharth Bhal | 7697221 | 2014-10-15 16:22:51 +0530 | [diff] [blame] | 586 | { |
| 587 | hddLog(LOGE, FL("Sending Spoof request failed - Disable spoofing")); |
| 588 | pHddCtx->spoofMacAddr.isEnabled = FALSE; |
| 589 | } |
| 590 | } else |
| 591 | { |
| 592 | hddLog(LOG1, FL("Scan in Progress. Spoofing Deferred")); |
| 593 | pHddCtx->spoofMacAddr.isReqDeferred = TRUE; |
| 594 | } |
| 595 | |
| 596 | mutex_unlock(&pHddCtx->spoofMacAddr.macSpoofingLock); |
| 597 | |
| 598 | EXIT(); |
| 599 | |
Padma, Santhosh Kumar | 9cd3833 | 2015-11-17 12:18:10 +0530 | [diff] [blame] | 600 | return; |
| 601 | } |
| 602 | |
| 603 | void hdd_processSpoofMacAddrRequest(struct work_struct *work) |
| 604 | { |
| 605 | vos_ssr_protect(__func__); |
| 606 | __hdd_processSpoofMacAddrRequest(work); |
| 607 | vos_ssr_unprotect(__func__); |
Siddharth Bhal | 7697221 | 2014-10-15 16:22:51 +0530 | [diff] [blame] | 608 | } |
| 609 | |
| 610 | /**--------------------------------------------------------------------------- |
| 611 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 612 | \brief hdd_ScanRequestCallback() - |
| 613 | |
| 614 | The sme module calls this callback function once it finish the scan request |
| 615 | and this function notifies the scan complete event to the wpa_supplicant. |
| 616 | |
| 617 | \param - halHandle - Pointer to the Hal Handle. |
| 618 | - pContext - Pointer to the data context. |
| 619 | - scanId - Scan ID. |
| 620 | - status - CSR Status. |
| 621 | \return - 0 for success, non zero for failure |
| 622 | |
| 623 | --------------------------------------------------------------------------*/ |
| 624 | |
| 625 | static eHalStatus hdd_ScanRequestCallback(tHalHandle halHandle, void *pContext, |
| 626 | tANI_U32 scanId, eCsrScanStatus status) |
| 627 | { |
| 628 | struct net_device *dev = (struct net_device *) pContext; |
| 629 | hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev) ; |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 630 | hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 631 | union iwreq_data wrqu; |
| 632 | int we_event; |
| 633 | char *msg; |
| 634 | |
| 635 | ENTER(); |
| 636 | |
Jeff Johnson | c135a9a | 2017-09-19 08:37:24 -0700 | [diff] [blame] | 637 | hddLog(LOGW,"%s called with halHandle = %pK, pContext = %pK, scanID = %d," |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 638 | " returned status = %d", __func__, halHandle, pContext, |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 639 | (int) scanId, (int) status); |
| 640 | |
| 641 | /* if there is a scan request pending when the wlan driver is unloaded |
| 642 | we may be invoked as SME flushes its pending queue. If that is the |
| 643 | case, the underlying net_device may have already been destroyed, so |
| 644 | do some quick sanity before proceeding */ |
| 645 | if (pAdapter->dev != dev) |
| 646 | { |
Jeff Johnson | c135a9a | 2017-09-19 08:37:24 -0700 | [diff] [blame] | 647 | hddLog(LOGW, "%s: device mismatch %pK vs %pK", |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 648 | __func__, pAdapter->dev, dev); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 649 | return eHAL_STATUS_SUCCESS; |
| 650 | } |
| 651 | |
| 652 | /* Check the scanId */ |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 653 | if (pHddCtx->scan_info.scanId != scanId) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 654 | { |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 655 | hddLog(LOGW, "%s called with mismatched scanId pHddCtx->scan_info.scanId = %d " |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 656 | "scanId = %d ", __func__, (int) pHddCtx->scan_info.scanId, |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 657 | (int) scanId); |
| 658 | } |
| 659 | |
| 660 | /* Scan is no longer pending */ |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 661 | pHddCtx->scan_info.mScanPending = VOS_FALSE; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 662 | |
| 663 | // notify any applications that may be interested |
| 664 | memset(&wrqu, '\0', sizeof(wrqu)); |
| 665 | we_event = SIOCGIWSCAN; |
| 666 | msg = NULL; |
| 667 | wireless_send_event(dev, we_event, &wrqu, msg); |
| 668 | |
| 669 | EXIT(); |
| 670 | |
| 671 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "%s: exit !!!",__func__); |
| 672 | |
| 673 | return eHAL_STATUS_SUCCESS; |
| 674 | } |
| 675 | |
| 676 | /**--------------------------------------------------------------------------- |
| 677 | |
Mahesh A Saptasagar | d68eb28 | 2014-12-17 14:20:19 +0530 | [diff] [blame] | 678 | \brief __iw_set_scan() - |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 679 | |
| 680 | This function process the scan request from the wpa_supplicant |
| 681 | and set the scan request to the SME |
| 682 | |
| 683 | \param - dev - Pointer to the net device. |
| 684 | - info - Pointer to the iw_request_info. |
| 685 | - wrqu - Pointer to the iwreq_data. |
| 686 | - extra - Pointer to the data. |
| 687 | \return - 0 for success, non zero for failure |
| 688 | |
| 689 | --------------------------------------------------------------------------*/ |
| 690 | |
| 691 | |
Mahesh A Saptasagar | d68eb28 | 2014-12-17 14:20:19 +0530 | [diff] [blame] | 692 | int __iw_set_scan(struct net_device *dev, struct iw_request_info *info, |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 693 | union iwreq_data *wrqu, char *extra) |
| 694 | { |
Mahesh A Saptasagar | 153c466 | 2015-02-06 12:13:08 +0530 | [diff] [blame] | 695 | hdd_adapter_t *pAdapter; |
| 696 | hdd_context_t *pHddCtx; |
| 697 | hdd_wext_state_t *pwextBuf; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 698 | tCsrScanRequest scanRequest; |
| 699 | v_U32_t scanId = 0; |
| 700 | eHalStatus status = eHAL_STATUS_SUCCESS; |
| 701 | struct iw_scan_req *scanReq = (struct iw_scan_req *)extra; |
Mahesh A Saptasagar | 153c466 | 2015-02-06 12:13:08 +0530 | [diff] [blame] | 702 | int ret = 0; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 703 | |
| 704 | ENTER(); |
| 705 | |
| 706 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "%s: enter !!!",__func__); |
| 707 | |
Mahesh A Saptasagar | 153c466 | 2015-02-06 12:13:08 +0530 | [diff] [blame] | 708 | pAdapter = WLAN_HDD_GET_PRIV_PTR(dev); |
| 709 | if (NULL == pAdapter) |
| 710 | { |
| 711 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| 712 | "%s: Adapter is NULL",__func__); |
| 713 | return -EINVAL; |
| 714 | } |
| 715 | |
| 716 | pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| 717 | ret = wlan_hdd_validate_context(pHddCtx); |
| 718 | if (0 != ret) |
| 719 | { |
Mahesh A Saptasagar | 153c466 | 2015-02-06 12:13:08 +0530 | [diff] [blame] | 720 | return ret; |
| 721 | } |
| 722 | pwextBuf = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter); |
| 723 | if (NULL == pwextBuf) |
| 724 | { |
| 725 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| 726 | "%s: pwextBuf is NULL",__func__); |
| 727 | return -EINVAL; |
| 728 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 729 | #ifdef WLAN_BTAMP_FEATURE |
| 730 | //Scan not supported when AMP traffic is on. |
| 731 | if( VOS_TRUE == WLANBAP_AmpSessionOn() ) |
| 732 | { |
| 733 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, "%s: No scanning when AMP is on",__func__); |
| 734 | return eHAL_STATUS_SUCCESS; |
| 735 | } |
| 736 | #endif |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 737 | if(pHddCtx->scan_info.mScanPending == TRUE) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 738 | { |
| 739 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL, "%s:mScanPending is TRUE !!!",__func__); |
| 740 | return eHAL_STATUS_SUCCESS; |
| 741 | } |
| 742 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 743 | vos_mem_zero( &scanRequest, sizeof(scanRequest)); |
| 744 | |
| 745 | if (NULL != wrqu->data.pointer) |
| 746 | { |
| 747 | /* set scanType, active or passive */ |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 748 | if ((IW_SCAN_TYPE_ACTIVE == scanReq->scan_type) || (eSIR_ACTIVE_SCAN == pHddCtx->scan_info.scan_mode)) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 749 | { |
| 750 | scanRequest.scanType = eSIR_ACTIVE_SCAN; |
| 751 | } |
| 752 | else |
| 753 | { |
| 754 | scanRequest.scanType = eSIR_PASSIVE_SCAN; |
| 755 | } |
| 756 | |
| 757 | /* set bssid using sockaddr from iw_scan_req */ |
| 758 | vos_mem_copy(scanRequest.bssid, |
| 759 | &scanReq->bssid.sa_data, sizeof(scanRequest.bssid) ); |
| 760 | |
| 761 | if (wrqu->data.flags & IW_SCAN_THIS_ESSID) { |
| 762 | |
Arun Khandavalli | 40d6010 | 2015-11-09 10:28:18 +0530 | [diff] [blame] | 763 | if(scanReq->essid_len && |
| 764 | (scanReq->essid_len <= SIR_MAC_MAX_SSID_LENGTH)) { |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 765 | scanRequest.SSIDs.numOfSSIDs = 1; |
| 766 | scanRequest.SSIDs.SSIDList =( tCsrSSIDInfo *)vos_mem_malloc(sizeof(tCsrSSIDInfo)); |
| 767 | if(scanRequest.SSIDs.SSIDList) { |
| 768 | scanRequest.SSIDs.SSIDList->SSID.length = scanReq->essid_len; |
| 769 | vos_mem_copy(scanRequest.SSIDs.SSIDList-> SSID.ssId,scanReq->essid,scanReq->essid_len); |
| 770 | } |
| 771 | else |
| 772 | { |
| 773 | scanRequest.SSIDs.numOfSSIDs = 0; |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 774 | VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, "%s: Unable to allocate memory",__func__); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 775 | VOS_ASSERT(0); |
| 776 | } |
| 777 | } |
Arun Khandavalli | 40d6010 | 2015-11-09 10:28:18 +0530 | [diff] [blame] | 778 | else |
| 779 | { |
| 780 | hddLog(LOGE, FL("Invalid essid length : %d"), scanReq->essid_len); |
| 781 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 782 | } |
| 783 | |
| 784 | /* set min and max channel time */ |
| 785 | scanRequest.minChnTime = scanReq->min_channel_time; |
| 786 | scanRequest.maxChnTime = scanReq->max_channel_time; |
| 787 | |
| 788 | } |
| 789 | else |
| 790 | { |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 791 | if(pHddCtx->scan_info.scan_mode == eSIR_ACTIVE_SCAN) { |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 792 | /* set the scan type to active */ |
| 793 | scanRequest.scanType = eSIR_ACTIVE_SCAN; |
| 794 | } else { |
| 795 | scanRequest.scanType = eSIR_PASSIVE_SCAN; |
| 796 | } |
| 797 | |
| 798 | vos_mem_set( scanRequest.bssid, sizeof( tCsrBssid ), 0xff ); |
| 799 | |
| 800 | /* set min and max channel time to zero */ |
| 801 | scanRequest.minChnTime = 0; |
| 802 | scanRequest.maxChnTime = 0; |
| 803 | } |
| 804 | |
| 805 | /* set BSSType to default type */ |
| 806 | scanRequest.BSSType = eCSR_BSS_TYPE_ANY; |
| 807 | |
| 808 | /*Scan all the channels */ |
| 809 | scanRequest.ChannelInfo.numOfChannels = 0; |
| 810 | |
| 811 | scanRequest.ChannelInfo.ChannelList = NULL; |
| 812 | |
| 813 | /* set requestType to full scan */ |
| 814 | scanRequest.requestType = eCSR_SCAN_REQUEST_FULL_SCAN; |
| 815 | |
| 816 | /* if previous genIE is not NULL, update ScanIE */ |
| 817 | if (0 != pwextBuf->genIE.length) |
| 818 | { |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 819 | memset( &pHddCtx->scan_info.scanAddIE, 0, sizeof(pHddCtx->scan_info.scanAddIE) ); |
| 820 | memcpy( pHddCtx->scan_info.scanAddIE.addIEdata, pwextBuf->genIE.addIEdata, |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 821 | pwextBuf->genIE.length ); |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 822 | pHddCtx->scan_info.scanAddIE.length = pwextBuf->genIE.length; |
Agarwal Ashish | 4f61613 | 2013-12-30 23:32:50 +0530 | [diff] [blame] | 823 | /* Maximum length of each IE is SIR_MAC_MAX_IE_LENGTH */ |
| 824 | if (SIR_MAC_MAX_IE_LENGTH >= pwextBuf->genIE.length) |
| 825 | { |
| 826 | memcpy( pwextBuf->roamProfile.addIEScan, |
| 827 | pHddCtx->scan_info.scanAddIE.addIEdata, |
| 828 | pHddCtx->scan_info.scanAddIE.length); |
| 829 | pwextBuf->roamProfile.nAddIEScanLength = |
| 830 | pHddCtx->scan_info.scanAddIE.length; |
| 831 | } |
| 832 | else |
| 833 | { |
| 834 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| 835 | "Invalid ScanIE, Length is %d", pwextBuf->genIE.length); |
| 836 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 837 | /* clear previous genIE after use it */ |
| 838 | memset( &pwextBuf->genIE, 0, sizeof(pwextBuf->genIE) ); |
| 839 | } |
| 840 | |
| 841 | /* push addIEScan in scanRequset if exist */ |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 842 | if (pHddCtx->scan_info.scanAddIE.addIEdata && |
| 843 | pHddCtx->scan_info.scanAddIE.length) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 844 | { |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 845 | scanRequest.uIEFieldLen = pHddCtx->scan_info.scanAddIE.length; |
| 846 | scanRequest.pIEField = pHddCtx->scan_info.scanAddIE.addIEdata; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 847 | } |
Abhishek Singh | 9948949 | 2016-07-21 15:57:24 +0530 | [diff] [blame] | 848 | if (pHddCtx->spoofMacAddr.isEnabled && |
| 849 | pHddCtx->cfg_ini->enableMacSpoofing == 1) |
| 850 | { |
| 851 | hddLog(LOG1, FL("MAC Spoofing enabled for current scan")); |
| 852 | /* |
| 853 | * Updating SelfSta Mac Addr in TL which will be used to get |
| 854 | * staidx to fill TxBds for probe request during current scan |
| 855 | */ |
| 856 | status = WLANTL_updateSpoofMacAddr(pHddCtx->pvosContext, |
| 857 | &pHddCtx->spoofMacAddr.randomMacAddr, |
| 858 | &pAdapter->macAddressCurrent); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 859 | |
Abhishek Singh | 9948949 | 2016-07-21 15:57:24 +0530 | [diff] [blame] | 860 | if (status != eHAL_STATUS_SUCCESS) |
| 861 | { |
| 862 | hddLog(LOGE, FL("Failed to update MAC Spoof Addr in TL")); |
| 863 | goto error; |
| 864 | } |
| 865 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 866 | status = sme_ScanRequest( (WLAN_HDD_GET_CTX(pAdapter))->hHal, pAdapter->sessionId,&scanRequest, &scanId, &hdd_ScanRequestCallback, dev ); |
| 867 | if (!HAL_STATUS_SUCCESS(status)) |
| 868 | { |
| 869 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL, "%s:sme_ScanRequest fail %d!!!",__func__, status); |
| 870 | goto error; |
| 871 | } |
| 872 | |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 873 | pHddCtx->scan_info.mScanPending = TRUE; |
Kaushik, Sushant | dedd4ea | 2014-11-06 11:55:14 +0530 | [diff] [blame] | 874 | pHddCtx->scan_info.sessionId = pAdapter->sessionId; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 875 | |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 876 | pHddCtx->scan_info.scanId = scanId; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 877 | |
| 878 | error: |
| 879 | if ((wrqu->data.flags & IW_SCAN_THIS_ESSID) && (scanReq->essid_len)) |
| 880 | vos_mem_free(scanRequest.SSIDs.SSIDList); |
| 881 | |
| 882 | EXIT(); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 883 | return status; |
| 884 | } |
| 885 | |
Mahesh A Saptasagar | d68eb28 | 2014-12-17 14:20:19 +0530 | [diff] [blame] | 886 | int iw_set_scan(struct net_device *dev, struct iw_request_info *info, |
| 887 | union iwreq_data *wrqu, char *extra) |
| 888 | { |
| 889 | int ret; |
| 890 | |
| 891 | vos_ssr_protect(__func__); |
| 892 | ret = __iw_set_scan(dev, info, wrqu, extra); |
| 893 | vos_ssr_unprotect(__func__); |
| 894 | |
| 895 | return ret; |
| 896 | } |
| 897 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 898 | /**--------------------------------------------------------------------------- |
| 899 | |
Mahesh A Saptasagar | d68eb28 | 2014-12-17 14:20:19 +0530 | [diff] [blame] | 900 | \brief __iw_get_scan() - |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 901 | |
| 902 | This function returns the scan results to the wpa_supplicant |
| 903 | |
| 904 | \param - dev - Pointer to the net device. |
| 905 | - info - Pointer to the iw_request_info. |
| 906 | - wrqu - Pointer to the iwreq_data. |
| 907 | - extra - Pointer to the data. |
| 908 | \return - 0 for success, non zero for failure |
| 909 | |
| 910 | --------------------------------------------------------------------------*/ |
| 911 | |
| 912 | |
Mahesh A Saptasagar | d68eb28 | 2014-12-17 14:20:19 +0530 | [diff] [blame] | 913 | int __iw_get_scan(struct net_device *dev, |
| 914 | struct iw_request_info *info, |
| 915 | union iwreq_data *wrqu, char *extra) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 916 | { |
Mahesh A Saptasagar | 153c466 | 2015-02-06 12:13:08 +0530 | [diff] [blame] | 917 | hdd_adapter_t *pAdapter; |
| 918 | hdd_context_t *pHddCtx; |
| 919 | tHalHandle hHal; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 920 | tCsrScanResultInfo *pScanResult; |
| 921 | eHalStatus status = eHAL_STATUS_SUCCESS; |
| 922 | hdd_scan_info_t scanInfo; |
| 923 | tScanResultHandle pResult; |
Mahesh A Saptasagar | 153c466 | 2015-02-06 12:13:08 +0530 | [diff] [blame] | 924 | int i = 0, ret = 0; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 925 | |
Hanumantha Reddy Pothula | 7dc0e6c | 2015-03-06 15:11:16 +0530 | [diff] [blame] | 926 | ENTER(); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 927 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "%s: enter buffer length %d!!!", |
| 928 | __func__, (wrqu->data.length)?wrqu->data.length:IW_SCAN_MAX_DATA); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 929 | |
Mahesh A Saptasagar | 153c466 | 2015-02-06 12:13:08 +0530 | [diff] [blame] | 930 | pAdapter = WLAN_HDD_GET_PRIV_PTR(dev); |
| 931 | if (NULL == pAdapter) |
| 932 | { |
| 933 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| 934 | "%s: Adapter is NULL",__func__); |
| 935 | return -EINVAL; |
| 936 | } |
| 937 | |
| 938 | pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| 939 | ret = wlan_hdd_validate_context(pHddCtx); |
| 940 | if (0 != ret) |
| 941 | { |
Mahesh A Saptasagar | 153c466 | 2015-02-06 12:13:08 +0530 | [diff] [blame] | 942 | return ret; |
| 943 | } |
| 944 | hHal = WLAN_HDD_GET_HAL_CTX(pAdapter); |
| 945 | if (NULL == hHal) |
| 946 | { |
| 947 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| 948 | "%s: Hal Context is NULL",__func__); |
| 949 | return -EINVAL; |
| 950 | } |
| 951 | |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 952 | if (TRUE == pHddCtx->scan_info.mScanPending) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 953 | { |
| 954 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL, "%s:mScanPending is TRUE !!!",__func__); |
| 955 | return -EAGAIN; |
| 956 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 957 | scanInfo.dev = dev; |
| 958 | scanInfo.start = extra; |
| 959 | scanInfo.info = info; |
| 960 | |
| 961 | if (0 == wrqu->data.length) |
| 962 | { |
| 963 | scanInfo.end = extra + IW_SCAN_MAX_DATA; |
| 964 | } |
| 965 | else |
| 966 | { |
| 967 | scanInfo.end = extra + wrqu->data.length; |
| 968 | } |
| 969 | |
| 970 | status = sme_ScanGetResult(hHal,pAdapter->sessionId,NULL,&pResult); |
| 971 | |
| 972 | if (NULL == pResult) |
| 973 | { |
| 974 | // no scan results |
Mahesh A Saptasagar | d68eb28 | 2014-12-17 14:20:19 +0530 | [diff] [blame] | 975 | hddLog(LOG1,"__iw_get_scan: NULL Scan Result "); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 976 | return 0; |
| 977 | } |
| 978 | |
| 979 | pScanResult = sme_ScanResultGetFirst(hHal, pResult); |
| 980 | |
| 981 | while (pScanResult) |
| 982 | { |
| 983 | status = hdd_IndicateScanResult(&scanInfo, pScanResult); |
| 984 | if (0 != status) |
| 985 | { |
| 986 | break; |
| 987 | } |
| 988 | i++; |
| 989 | pScanResult = sme_ScanResultGetNext(hHal, pResult); |
| 990 | } |
| 991 | |
| 992 | sme_ScanResultPurge(hHal, pResult); |
| 993 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 994 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "%s: exit total %d BSS reported !!!",__func__, i); |
Hanumantha Reddy Pothula | 7dc0e6c | 2015-03-06 15:11:16 +0530 | [diff] [blame] | 995 | EXIT(); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 996 | return status; |
| 997 | } |
| 998 | |
Mahesh A Saptasagar | d68eb28 | 2014-12-17 14:20:19 +0530 | [diff] [blame] | 999 | int iw_get_scan(struct net_device *dev, |
| 1000 | struct iw_request_info *info, |
| 1001 | union iwreq_data *wrqu, char *extra) |
| 1002 | { |
| 1003 | int ret; |
| 1004 | |
| 1005 | vos_ssr_protect(__func__); |
| 1006 | ret = __iw_get_scan(dev, info, wrqu, extra); |
| 1007 | vos_ssr_unprotect(__func__); |
| 1008 | |
| 1009 | return ret; |
| 1010 | } |
| 1011 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1012 | #if 0 |
| 1013 | static eHalStatus hdd_CscanRequestCallback(tHalHandle halHandle, void *pContext, |
| 1014 | tANI_U32 scanId, eCsrScanStatus status) |
| 1015 | { |
| 1016 | struct net_device *dev = (struct net_device *) pContext; |
| 1017 | hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev) ; |
| 1018 | hdd_wext_state_t *pwextBuf = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter); |
| 1019 | union iwreq_data wrqu; |
| 1020 | int we_event; |
| 1021 | char *msg; |
| 1022 | VOS_STATUS vos_status = VOS_STATUS_SUCCESS; |
| 1023 | ENTER(); |
| 1024 | |
Jeff Johnson | c135a9a | 2017-09-19 08:37:24 -0700 | [diff] [blame] | 1025 | hddLog(LOG1,"%s called with halHandle = %pK, pContext = %pK, scanID = %d," |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 1026 | " returned status = %d", __func__, halHandle, pContext, |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1027 | (int) scanId, (int) status); |
| 1028 | |
| 1029 | /* Check the scanId */ |
| 1030 | if (pwextBuf->scanId != scanId) |
| 1031 | { |
| 1032 | hddLog(LOGW, "%s called with mismatched scanId pWextState->scanId = %d " |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 1033 | "scanId = %d ", __func__, (int) pwextBuf->scanId, |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1034 | (int) scanId); |
| 1035 | } |
| 1036 | |
| 1037 | /* Scan is no longer pending */ |
| 1038 | pwextBuf->mScanPending = VOS_FALSE; |
| 1039 | |
| 1040 | // notify any applications that may be interested |
| 1041 | memset(&wrqu, '\0', sizeof(wrqu)); |
| 1042 | we_event = SIOCGIWSCAN; |
| 1043 | msg = NULL; |
| 1044 | wireless_send_event(dev, we_event, &wrqu, msg); |
| 1045 | |
| 1046 | vos_status = vos_event_set(&pwextBuf->vosevent); |
| 1047 | |
| 1048 | if (!VOS_IS_STATUS_SUCCESS(vos_status)) |
| 1049 | { |
| 1050 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, ("ERROR: HDD vos_event_set failed!!")); |
| 1051 | return VOS_STATUS_E_FAILURE; |
| 1052 | } |
| 1053 | |
| 1054 | EXIT(); |
| 1055 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "%s: exit !!!",__func__); |
| 1056 | |
| 1057 | return eHAL_STATUS_SUCCESS; |
| 1058 | } |
| 1059 | #endif |
| 1060 | |
| 1061 | int iw_set_cscan(struct net_device *dev, struct iw_request_info *info, |
| 1062 | union iwreq_data *wrqu, char *extra) |
| 1063 | { |
| 1064 | hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev) ; |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1065 | hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1066 | hdd_wext_state_t *pwextBuf = WLAN_HDD_GET_WEXT_STATE_PTR(pAdapter); |
| 1067 | tCsrScanRequest scanRequest; |
| 1068 | v_U32_t scanId = 0; |
| 1069 | eHalStatus status = eHAL_STATUS_SUCCESS; |
| 1070 | v_U8_t channelIdx; |
| 1071 | |
| 1072 | ENTER(); |
| 1073 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "%s: enter !!!",__func__); |
| 1074 | |
| 1075 | #ifdef WLAN_BTAMP_FEATURE |
| 1076 | //Scan not supported when AMP traffic is on. |
| 1077 | if( VOS_TRUE == WLANBAP_AmpSessionOn() ) |
| 1078 | { |
| 1079 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, "%s: No scanning when AMP is on",__func__); |
| 1080 | return eHAL_STATUS_SUCCESS; |
| 1081 | } |
| 1082 | #endif |
| 1083 | |
| 1084 | if ((WLAN_HDD_GET_CTX(pAdapter))->isLogpInProgress) |
| 1085 | { |
| 1086 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL, "%s:LOGP in Progress. Ignore!!!",__func__); |
| 1087 | return eHAL_STATUS_SUCCESS; |
| 1088 | } |
| 1089 | |
| 1090 | vos_mem_zero( &scanRequest, sizeof(scanRequest)); |
| 1091 | if (NULL != wrqu->data.pointer) |
| 1092 | { |
| 1093 | char *str_ptr = NULL; |
| 1094 | tCsrSSIDInfo *SsidInfo = NULL; |
| 1095 | int num_ssid = 0; |
| 1096 | int i, j, ssid_start; |
| 1097 | hdd_scan_pending_option_e scanPendingOption = WEXT_SCAN_PENDING_GIVEUP; |
| 1098 | |
Rajeev Kumar | be97df0 | 2013-10-24 18:30:39 -0700 | [diff] [blame] | 1099 | str_ptr = extra; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1100 | |
| 1101 | i = WEXT_CSCAN_HEADER_SIZE; |
| 1102 | |
| 1103 | if( WEXT_CSCAN_PENDING_SECTION == str_ptr[i] ) |
| 1104 | { |
| 1105 | scanPendingOption = (hdd_scan_pending_option_e)str_ptr[++i]; |
| 1106 | ++i; |
| 1107 | } |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1108 | pHddCtx->scan_info.scan_pending_option = scanPendingOption; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1109 | |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1110 | if(pHddCtx->scan_info.mScanPending == TRUE) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1111 | { |
| 1112 | hddLog(LOG1,"%s: mScanPending is TRUE",__func__); |
| 1113 | /* If any scan is pending, just giveup this scan request */ |
| 1114 | if(WEXT_SCAN_PENDING_GIVEUP == scanPendingOption) |
| 1115 | { |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1116 | pHddCtx->scan_info.waitScanResult = FALSE; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1117 | return eHAL_STATUS_SUCCESS; |
| 1118 | } |
| 1119 | /* If any scan pending, wait till finish current scan, |
| 1120 | and try this scan request when previous scan finish */ |
| 1121 | else if(WEXT_SCAN_PENDING_DELAY == scanPendingOption) |
| 1122 | { |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1123 | pHddCtx->scan_info.waitScanResult = TRUE; |
| 1124 | vos_event_reset(&pHddCtx->scan_info.scan_finished_event); |
| 1125 | if(vos_wait_single_event(&pHddCtx->scan_info.scan_finished_event, |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1126 | WEXT_CSCAN_SCAN_DONE_WAIT_TIME)) |
| 1127 | { |
| 1128 | hddLog(LOG1,"%s: Previous SCAN does not finished on time",__func__); |
| 1129 | return eHAL_STATUS_SUCCESS; |
| 1130 | } |
| 1131 | } |
| 1132 | /* Piggyback previous scan result */ |
| 1133 | else if(WEXT_SCAN_PENDING_PIGGYBACK == scanPendingOption) |
| 1134 | { |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1135 | pHddCtx->scan_info.waitScanResult = TRUE; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1136 | return eHAL_STATUS_SUCCESS; |
| 1137 | } |
| 1138 | } |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1139 | pHddCtx->scan_info.waitScanResult = FALSE; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1140 | |
| 1141 | /* Check for scan IE */ |
| 1142 | while( WEXT_CSCAN_SSID_SECTION == str_ptr[i] ) |
| 1143 | { |
| 1144 | /* ssid_len */ |
| 1145 | if(str_ptr[++i] != WEXT_CSCAN_CHANNEL_SECTION) |
| 1146 | { |
| 1147 | /* total number of ssid's */ |
| 1148 | num_ssid++; |
| 1149 | /* increment length filed */ |
| 1150 | i += str_ptr[i] + 1; |
| 1151 | } |
| 1152 | /* i should be saved and it will be pointing to 'C' */ |
| 1153 | } |
| 1154 | |
| 1155 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "%s: numSsid %d !!!",__func__, num_ssid); |
| 1156 | if( num_ssid ) |
| 1157 | { |
| 1158 | /* To be fixed in SME and PE: override the number of ssid with 1, |
| 1159 | * as SME and PE does not handle multiple SSID in scan request |
| 1160 | * */ |
| 1161 | scanRequest.SSIDs.numOfSSIDs = num_ssid; |
| 1162 | /* Allocate num_ssid tCsrSSIDInfo structure */ |
| 1163 | SsidInfo = scanRequest.SSIDs.SSIDList =( tCsrSSIDInfo *)vos_mem_malloc(num_ssid*sizeof(tCsrSSIDInfo)); |
| 1164 | if(NULL == scanRequest.SSIDs.SSIDList) { |
| 1165 | hddLog(VOS_TRACE_LEVEL_ERROR, "memory alloc failed SSIDInfo buffer"); |
| 1166 | return -ENOMEM; |
| 1167 | } |
| 1168 | |
| 1169 | /* copy all the ssid's and their length */ |
| 1170 | ssid_start = WEXT_CSCAN_HEADER_SIZE + 1;/* skipping 'S' */ |
| 1171 | for(j = 0; j < num_ssid; j++) { |
| 1172 | if( SIR_MAC_MAX_SSID_LENGTH < str_ptr[ssid_start]){ |
| 1173 | scanRequest.SSIDs.numOfSSIDs -= 1; |
| 1174 | } else{ |
| 1175 | /* get the ssid length */ |
| 1176 | SsidInfo->SSID.length = str_ptr[ssid_start++]; |
| 1177 | vos_mem_copy(SsidInfo->SSID.ssId, &str_ptr[ssid_start], SsidInfo->SSID.length); |
Arif Hussain | 6d2a332 | 2013-11-17 19:50:10 -0800 | [diff] [blame] | 1178 | hddLog(VOS_TRACE_LEVEL_INFO_HIGH, "SSID number %d: %s", j, SsidInfo->SSID.ssId); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1179 | } |
| 1180 | /* skipping length */ |
| 1181 | ssid_start += str_ptr[ssid_start - 1] + 1; |
| 1182 | /* Store next ssid info */ |
| 1183 | SsidInfo++; |
| 1184 | } |
| 1185 | } |
| 1186 | |
| 1187 | /* Check for Channel IE */ |
| 1188 | if ( WEXT_CSCAN_CHANNEL_SECTION == str_ptr[i]) |
| 1189 | { |
| 1190 | if( str_ptr[++i] == 0 ) |
| 1191 | { |
| 1192 | scanRequest.ChannelInfo.numOfChannels = 0; |
| 1193 | scanRequest.ChannelInfo.ChannelList = NULL; |
| 1194 | i++; |
| 1195 | } |
| 1196 | else { |
| 1197 | |
| 1198 | /* increment the counter */ |
| 1199 | scanRequest.ChannelInfo.numOfChannels = str_ptr[i++]; |
| 1200 | /* store temp channel list */ |
| 1201 | /* SME expects 1 byte channel content */ |
| 1202 | scanRequest.ChannelInfo.ChannelList = vos_mem_malloc(scanRequest.ChannelInfo.numOfChannels * sizeof(v_U8_t)); |
| 1203 | if(NULL == scanRequest.ChannelInfo.ChannelList) |
| 1204 | { |
c_hpothu | 7f63e88 | 2013-10-02 19:13:35 +0530 | [diff] [blame] | 1205 | hddLog(LOGE, "memory alloc failed for channel list creation"); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1206 | status = -ENOMEM; |
| 1207 | goto exit_point; |
| 1208 | } |
| 1209 | |
| 1210 | for(channelIdx = 0; channelIdx < scanRequest.ChannelInfo.numOfChannels; channelIdx++) |
| 1211 | { |
| 1212 | /* SCAN request from upper layer has 2 bytes channel */ |
| 1213 | scanRequest.ChannelInfo.ChannelList[channelIdx] = (v_U8_t)str_ptr[i]; |
| 1214 | i += sizeof(v_U16_t); |
| 1215 | } |
| 1216 | } |
| 1217 | } |
| 1218 | |
| 1219 | /* Set default */ |
| 1220 | scanRequest.scanType = eSIR_ACTIVE_SCAN; |
| 1221 | scanRequest.minChnTime = 0; |
| 1222 | scanRequest.maxChnTime = 0; |
| 1223 | |
| 1224 | /* Now i is pointing to passive dwell dwell time */ |
| 1225 | /* 'P',min dwell time, max dwell time */ |
| 1226 | /* next two offsets contain min and max channel time */ |
| 1227 | if( WEXT_CSCAN_PASV_DWELL_SECTION == (str_ptr[i]) ) |
| 1228 | { |
| 1229 | /* No SSID specified, num_ssid == 0, then start paasive scan */ |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1230 | if (!num_ssid || (eSIR_PASSIVE_SCAN == pHddCtx->scan_info.scan_mode)) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1231 | { |
| 1232 | scanRequest.scanType = eSIR_PASSIVE_SCAN; |
| 1233 | scanRequest.minChnTime = (v_U8_t)str_ptr[++i];//scanReq->min_channel_time; |
| 1234 | scanRequest.maxChnTime = (v_U8_t)str_ptr[++i];//scanReq->max_channel_time; |
| 1235 | i++; |
| 1236 | } |
| 1237 | else |
| 1238 | { |
| 1239 | i += 3; |
| 1240 | } |
| 1241 | } |
| 1242 | |
| 1243 | /* H indicates active channel time */ |
| 1244 | if( WEXT_CSCAN_HOME_DWELL_SECTION == (str_ptr[i]) ) |
| 1245 | { |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1246 | if (num_ssid || (eSIR_ACTIVE_SCAN == pHddCtx->scan_info.scan_mode)) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1247 | { |
| 1248 | scanRequest.scanType = eSIR_ACTIVE_SCAN; |
| 1249 | scanRequest.minChnTime = str_ptr[++i];//scanReq->min_channel_time; |
| 1250 | scanRequest.maxChnTime = str_ptr[++i];//scanReq->max_channel_time; |
| 1251 | i++; |
| 1252 | } |
| 1253 | else |
| 1254 | { |
| 1255 | i +=3; |
| 1256 | } |
| 1257 | } |
| 1258 | scanRequest.BSSType = eCSR_BSS_TYPE_ANY; |
| 1259 | /* set requestType to full scan */ |
| 1260 | scanRequest.requestType = eCSR_SCAN_REQUEST_FULL_SCAN; |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1261 | pHddCtx->scan_info.mScanPending = TRUE; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1262 | |
| 1263 | /* if previous genIE is not NULL, update ScanIE */ |
| 1264 | if(0 != pwextBuf->genIE.length) |
| 1265 | { |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1266 | memset( &pHddCtx->scan_info.scanAddIE, 0, sizeof(pHddCtx->scan_info.scanAddIE) ); |
| 1267 | memcpy( pHddCtx->scan_info.scanAddIE.addIEdata, pwextBuf->genIE.addIEdata, |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1268 | pwextBuf->genIE.length ); |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1269 | pHddCtx->scan_info.scanAddIE.length = pwextBuf->genIE.length; |
Agarwal Ashish | 4f61613 | 2013-12-30 23:32:50 +0530 | [diff] [blame] | 1270 | if (SIR_MAC_MAX_IE_LENGTH >= pwextBuf->genIE.length) |
| 1271 | { |
| 1272 | memcpy( pwextBuf->roamProfile.addIEScan, |
| 1273 | pHddCtx->scan_info.scanAddIE.addIEdata, |
| 1274 | pHddCtx->scan_info.scanAddIE.length); |
| 1275 | pwextBuf->roamProfile.nAddIEScanLength = |
| 1276 | pHddCtx->scan_info.scanAddIE.length; |
| 1277 | } |
| 1278 | else |
| 1279 | { |
| 1280 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| 1281 | "Invalid ScanIE, Length is %d", |
| 1282 | pwextBuf->genIE.length); |
| 1283 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1284 | |
| 1285 | /* clear previous genIE after use it */ |
| 1286 | memset( &pwextBuf->genIE, 0, sizeof(pwextBuf->genIE) ); |
| 1287 | } |
| 1288 | |
| 1289 | /* push addIEScan in scanRequset if exist */ |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1290 | if (pHddCtx->scan_info.scanAddIE.addIEdata && |
| 1291 | pHddCtx->scan_info.scanAddIE.length) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1292 | { |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1293 | scanRequest.uIEFieldLen = pHddCtx->scan_info.scanAddIE.length; |
| 1294 | scanRequest.pIEField = pHddCtx->scan_info.scanAddIE.addIEdata; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1295 | } |
| 1296 | |
| 1297 | status = sme_ScanRequest( (WLAN_HDD_GET_CTX(pAdapter))->hHal, |
| 1298 | pAdapter->sessionId,&scanRequest, &scanId, &hdd_ScanRequestCallback, dev ); |
| 1299 | if( !HAL_STATUS_SUCCESS(status) ) |
| 1300 | { |
| 1301 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL, "%s: SME scan fail status %d !!!",__func__, status); |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1302 | pHddCtx->scan_info.mScanPending = FALSE; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1303 | status = -EINVAL; |
| 1304 | goto exit_point; |
| 1305 | } |
| 1306 | |
Madan Mohan Koyyalamudi | 2a1ba77 | 2012-10-11 14:59:06 -0700 | [diff] [blame] | 1307 | pHddCtx->scan_info.scanId = scanId; |
Kaushik, Sushant | dedd4ea | 2014-11-06 11:55:14 +0530 | [diff] [blame] | 1308 | pHddCtx->scan_info.sessionId = pAdapter->sessionId; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1309 | |
| 1310 | } //end of data->pointer |
| 1311 | else { |
| 1312 | status = -1; |
| 1313 | } |
| 1314 | |
| 1315 | exit_point: |
| 1316 | |
| 1317 | /* free ssidlist */ |
| 1318 | if (scanRequest.SSIDs.SSIDList) |
| 1319 | { |
| 1320 | vos_mem_free(scanRequest.SSIDs.SSIDList); |
| 1321 | } |
| 1322 | /* free the channel list */ |
| 1323 | if(scanRequest.ChannelInfo.ChannelList) |
| 1324 | { |
| 1325 | vos_mem_free((void*)scanRequest.ChannelInfo.ChannelList); |
| 1326 | } |
| 1327 | |
| 1328 | EXIT(); |
| 1329 | VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "%s: exit !!!",__func__); |
| 1330 | return status; |
| 1331 | } |
| 1332 | |
| 1333 | /* Abort any MAC scan if in progress */ |
c_hpothu | a3d45d5 | 2015-01-05 14:11:17 +0530 | [diff] [blame] | 1334 | tSirAbortScanStatus hdd_abort_mac_scan(hdd_context_t* pHddCtx, |
| 1335 | tANI_U8 sessionId, |
| 1336 | eCsrAbortReason reason) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1337 | { |
c_hpothu | a3d45d5 | 2015-01-05 14:11:17 +0530 | [diff] [blame] | 1338 | return sme_AbortMacScan(pHddCtx->hHal, sessionId, reason); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1339 | } |
| 1340 | |