Qiwei Cai | e689a26 | 2018-07-26 15:50:22 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2012-2018 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: wlan_hdd_station_info.c |
| 21 | * |
| 22 | * WLAN station info functions |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | #include <wlan_hdd_includes.h> |
| 27 | #include <linux/netdevice.h> |
| 28 | #include <linux/skbuff.h> |
| 29 | #include <linux/etherdevice.h> |
| 30 | #include <linux/if_ether.h> |
| 31 | #include <wlan_cp_stats_mc_ucfg_api.h> |
| 32 | #include <wlan_hdd_stats.h> |
| 33 | #include <wlan_hdd_hostapd.h> |
| 34 | #include <wlan_hdd_station_info.h> |
| 35 | |
| 36 | /* |
| 37 | * define short names for the global vendor params |
| 38 | * used by __wlan_hdd_cfg80211_get_station_cmd() |
| 39 | */ |
| 40 | #define STATION_INVALID \ |
| 41 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INVALID |
| 42 | #define STATION_INFO \ |
| 43 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO |
| 44 | #define STATION_ASSOC_FAIL_REASON \ |
| 45 | QCA_WLAN_VENDOR_ATTR_GET_STATION_ASSOC_FAIL_REASON |
| 46 | #define STATION_REMOTE \ |
| 47 | QCA_WLAN_VENDOR_ATTR_GET_STATION_REMOTE |
| 48 | #define STATION_MAX \ |
| 49 | QCA_WLAN_VENDOR_ATTR_GET_STATION_MAX |
| 50 | |
| 51 | /* define short names for get station info attributes */ |
| 52 | #define LINK_INFO_STANDARD_NL80211_ATTR \ |
| 53 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_LINK_STANDARD_NL80211_ATTR |
| 54 | #define AP_INFO_STANDARD_NL80211_ATTR \ |
| 55 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_AP_STANDARD_NL80211_ATTR |
| 56 | #define INFO_ROAM_COUNT \ |
| 57 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_ROAM_COUNT |
| 58 | #define INFO_AKM \ |
| 59 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_AKM |
| 60 | #define WLAN802_11_MODE \ |
| 61 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_802_11_MODE |
| 62 | #define AP_INFO_HS20_INDICATION \ |
| 63 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_AP_HS20_INDICATION |
| 64 | #define HT_OPERATION \ |
| 65 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_HT_OPERATION |
| 66 | #define VHT_OPERATION \ |
| 67 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_VHT_OPERATION |
| 68 | #define INFO_ASSOC_FAIL_REASON \ |
| 69 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_ASSOC_FAIL_REASON |
| 70 | #define REMOTE_MAX_PHY_RATE \ |
| 71 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_MAX_PHY_RATE |
| 72 | #define REMOTE_TX_PACKETS \ |
| 73 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_TX_PACKETS |
| 74 | #define REMOTE_TX_BYTES \ |
| 75 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_TX_BYTES |
| 76 | #define REMOTE_RX_PACKETS \ |
| 77 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_RX_PACKETS |
| 78 | #define REMOTE_RX_BYTES \ |
| 79 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_RX_BYTES |
| 80 | #define REMOTE_LAST_TX_RATE \ |
| 81 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_LAST_TX_RATE |
| 82 | #define REMOTE_LAST_RX_RATE \ |
| 83 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_LAST_RX_RATE |
| 84 | #define REMOTE_WMM \ |
| 85 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_WMM |
| 86 | #define REMOTE_SUPPORTED_MODE \ |
| 87 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_SUPPORTED_MODE |
| 88 | #define REMOTE_AMPDU \ |
| 89 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_AMPDU |
| 90 | #define REMOTE_TX_STBC \ |
| 91 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_TX_STBC |
| 92 | #define REMOTE_RX_STBC \ |
| 93 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_RX_STBC |
| 94 | #define REMOTE_CH_WIDTH\ |
| 95 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_CH_WIDTH |
| 96 | #define REMOTE_SGI_ENABLE\ |
| 97 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_REMOTE_SGI_ENABLE |
| 98 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)) |
| 99 | #define REMOTE_PAD\ |
| 100 | QCA_WLAN_VENDOR_ATTR_GET_STATION_INFO_PAD |
| 101 | #endif |
| 102 | |
| 103 | static const struct nla_policy |
| 104 | hdd_get_station_policy[STATION_MAX + 1] = { |
| 105 | [STATION_INFO] = {.type = NLA_FLAG}, |
| 106 | [STATION_ASSOC_FAIL_REASON] = {.type = NLA_FLAG}, |
| 107 | [STATION_REMOTE] = {.type = NLA_BINARY, .len = QDF_MAC_ADDR_SIZE}, |
| 108 | }; |
| 109 | |
| 110 | #ifdef QCA_SUPPORT_CP_STATS |
| 111 | static int hdd_get_sta_congestion(struct hdd_adapter *adapter, |
| 112 | uint32_t *congestion) |
| 113 | { |
| 114 | QDF_STATUS status; |
| 115 | struct cca_stats cca_stats; |
| 116 | |
| 117 | status = ucfg_mc_cp_stats_cca_stats_get(adapter->hdd_vdev, &cca_stats); |
| 118 | if (QDF_IS_STATUS_ERROR(status)) |
| 119 | return -EINVAL; |
| 120 | |
| 121 | *congestion = cca_stats.congestion; |
| 122 | return 0; |
| 123 | } |
| 124 | #else |
| 125 | static int hdd_get_sta_congestion(struct hdd_adapter *adapter, |
| 126 | uint32_t *congestion) |
| 127 | { |
| 128 | struct hdd_station_ctx *hdd_sta_ctx; |
| 129 | |
| 130 | hdd_sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter); |
| 131 | *congestion = hdd_sta_ctx->conn_info.cca; |
| 132 | return 0; |
| 133 | } |
| 134 | #endif |
| 135 | |
| 136 | /** |
| 137 | * hdd_get_station_assoc_fail() - Handle get station assoc fail |
| 138 | * @hdd_ctx: HDD context within host driver |
| 139 | * @wdev: wireless device |
| 140 | * |
| 141 | * Handles QCA_NL80211_VENDOR_SUBCMD_GET_STATION_ASSOC_FAIL. |
| 142 | * Validate cmd attributes and send the station info to upper layers. |
| 143 | * |
| 144 | * Return: Success(0) or reason code for failure |
| 145 | */ |
| 146 | static int hdd_get_station_assoc_fail(struct hdd_context *hdd_ctx, |
| 147 | struct hdd_adapter *adapter) |
| 148 | { |
| 149 | struct sk_buff *skb = NULL; |
| 150 | uint32_t nl_buf_len; |
| 151 | struct hdd_station_ctx *hdd_sta_ctx; |
| 152 | uint32_t congestion; |
| 153 | |
| 154 | nl_buf_len = NLMSG_HDRLEN; |
| 155 | nl_buf_len += sizeof(uint32_t); |
| 156 | skb = cfg80211_vendor_cmd_alloc_reply_skb(hdd_ctx->wiphy, nl_buf_len); |
| 157 | |
| 158 | if (!skb) { |
| 159 | hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed"); |
| 160 | return -ENOMEM; |
| 161 | } |
| 162 | |
| 163 | hdd_sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter); |
| 164 | |
| 165 | if (nla_put_u32(skb, INFO_ASSOC_FAIL_REASON, |
| 166 | hdd_sta_ctx->conn_info.assoc_status_code)) { |
| 167 | hdd_err("put fail"); |
| 168 | goto fail; |
| 169 | } |
| 170 | |
| 171 | if (hdd_get_sta_congestion(adapter, &congestion)) |
| 172 | congestion = 0; |
| 173 | |
| 174 | hdd_info("congestion:%d", congestion); |
| 175 | if (nla_put_u32(skb, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY, |
| 176 | congestion)) { |
| 177 | hdd_err("put fail"); |
| 178 | goto fail; |
| 179 | } |
| 180 | |
| 181 | return cfg80211_vendor_cmd_reply(skb); |
| 182 | fail: |
| 183 | if (skb) |
| 184 | kfree_skb(skb); |
| 185 | return -EINVAL; |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * hdd_map_auth_type() - transform auth type specific to |
| 190 | * vendor command |
| 191 | * @auth_type: csr auth type |
| 192 | * |
| 193 | * Return: Success(0) or reason code for failure |
| 194 | */ |
| 195 | static int hdd_convert_auth_type(uint32_t auth_type) |
| 196 | { |
| 197 | uint32_t ret_val; |
| 198 | |
| 199 | switch (auth_type) { |
| 200 | case eCSR_AUTH_TYPE_OPEN_SYSTEM: |
| 201 | ret_val = QCA_WLAN_AUTH_TYPE_OPEN; |
| 202 | break; |
| 203 | case eCSR_AUTH_TYPE_SHARED_KEY: |
| 204 | ret_val = QCA_WLAN_AUTH_TYPE_SHARED; |
| 205 | break; |
| 206 | case eCSR_AUTH_TYPE_WPA: |
| 207 | ret_val = QCA_WLAN_AUTH_TYPE_WPA; |
| 208 | break; |
| 209 | case eCSR_AUTH_TYPE_WPA_PSK: |
| 210 | ret_val = QCA_WLAN_AUTH_TYPE_WPA_PSK; |
| 211 | break; |
| 212 | case eCSR_AUTH_TYPE_AUTOSWITCH: |
| 213 | ret_val = QCA_WLAN_AUTH_TYPE_AUTOSWITCH; |
| 214 | break; |
| 215 | case eCSR_AUTH_TYPE_WPA_NONE: |
| 216 | ret_val = QCA_WLAN_AUTH_TYPE_WPA_NONE; |
| 217 | break; |
| 218 | case eCSR_AUTH_TYPE_RSN: |
| 219 | ret_val = QCA_WLAN_AUTH_TYPE_RSN; |
| 220 | break; |
| 221 | case eCSR_AUTH_TYPE_RSN_PSK: |
| 222 | ret_val = QCA_WLAN_AUTH_TYPE_RSN_PSK; |
| 223 | break; |
| 224 | case eCSR_AUTH_TYPE_FT_RSN: |
| 225 | ret_val = QCA_WLAN_AUTH_TYPE_FT; |
| 226 | break; |
| 227 | case eCSR_AUTH_TYPE_FT_RSN_PSK: |
| 228 | ret_val = QCA_WLAN_AUTH_TYPE_FT_PSK; |
| 229 | break; |
| 230 | case eCSR_AUTH_TYPE_WAPI_WAI_CERTIFICATE: |
| 231 | ret_val = QCA_WLAN_AUTH_TYPE_WAI; |
| 232 | break; |
| 233 | case eCSR_AUTH_TYPE_WAPI_WAI_PSK: |
| 234 | ret_val = QCA_WLAN_AUTH_TYPE_WAI_PSK; |
| 235 | break; |
| 236 | case eCSR_AUTH_TYPE_CCKM_WPA: |
| 237 | ret_val = QCA_WLAN_AUTH_TYPE_CCKM_WPA; |
| 238 | break; |
| 239 | case eCSR_AUTH_TYPE_CCKM_RSN: |
| 240 | ret_val = QCA_WLAN_AUTH_TYPE_CCKM_RSN; |
| 241 | break; |
| 242 | case eCSR_AUTH_TYPE_RSN_PSK_SHA256: |
| 243 | ret_val = QCA_WLAN_AUTH_TYPE_SHA256_PSK; |
| 244 | break; |
| 245 | case eCSR_AUTH_TYPE_RSN_8021X_SHA256: |
| 246 | ret_val = QCA_WLAN_AUTH_TYPE_SHA256; |
| 247 | break; |
| 248 | case eCSR_NUM_OF_SUPPORT_AUTH_TYPE: |
| 249 | case eCSR_AUTH_TYPE_FAILED: |
| 250 | case eCSR_AUTH_TYPE_NONE: |
| 251 | default: |
| 252 | ret_val = QCA_WLAN_AUTH_TYPE_INVALID; |
| 253 | break; |
| 254 | } |
| 255 | return ret_val; |
| 256 | } |
| 257 | |
| 258 | /** |
| 259 | * hdd_map_dot_11_mode() - transform dot11mode type specific to |
| 260 | * vendor command |
| 261 | * @dot11mode: dot11mode |
| 262 | * |
| 263 | * Return: Success(0) or reason code for failure |
| 264 | */ |
| 265 | static int hdd_convert_dot11mode(uint32_t dot11mode) |
| 266 | { |
| 267 | uint32_t ret_val; |
| 268 | |
| 269 | switch (dot11mode) { |
| 270 | case eCSR_CFG_DOT11_MODE_11A: |
| 271 | ret_val = QCA_WLAN_802_11_MODE_11A; |
| 272 | break; |
| 273 | case eCSR_CFG_DOT11_MODE_11B: |
| 274 | ret_val = QCA_WLAN_802_11_MODE_11B; |
| 275 | break; |
| 276 | case eCSR_CFG_DOT11_MODE_11G: |
| 277 | ret_val = QCA_WLAN_802_11_MODE_11G; |
| 278 | break; |
| 279 | case eCSR_CFG_DOT11_MODE_11N: |
| 280 | ret_val = QCA_WLAN_802_11_MODE_11N; |
| 281 | break; |
| 282 | case eCSR_CFG_DOT11_MODE_11AC: |
| 283 | ret_val = QCA_WLAN_802_11_MODE_11AC; |
| 284 | break; |
| 285 | case eCSR_CFG_DOT11_MODE_AUTO: |
| 286 | case eCSR_CFG_DOT11_MODE_ABG: |
| 287 | default: |
| 288 | ret_val = QCA_WLAN_802_11_MODE_INVALID; |
| 289 | } |
| 290 | return ret_val; |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * hdd_add_tx_bitrate() - add tx bitrate attribute |
| 295 | * @skb: pointer to sk buff |
| 296 | * @hdd_sta_ctx: pointer to hdd station context |
| 297 | * @idx: attribute index |
| 298 | * |
| 299 | * Return: Success(0) or reason code for failure |
| 300 | */ |
| 301 | static int32_t hdd_add_tx_bitrate(struct sk_buff *skb, |
| 302 | struct hdd_station_ctx *hdd_sta_ctx, |
| 303 | int idx) |
| 304 | { |
| 305 | struct nlattr *nla_attr; |
| 306 | uint32_t bitrate, bitrate_compat; |
| 307 | |
| 308 | nla_attr = nla_nest_start(skb, idx); |
| 309 | if (!nla_attr) { |
| 310 | hdd_err("nla_nest_start failed"); |
| 311 | goto fail; |
| 312 | } |
| 313 | |
| 314 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
| 315 | bitrate = cfg80211_calculate_bitrate(&hdd_sta_ctx-> |
| 316 | cache_conn_info.txrate); |
| 317 | |
| 318 | /* report 16-bit bitrate only if we can */ |
| 319 | bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0; |
| 320 | |
| 321 | if (bitrate > 0) { |
| 322 | if (nla_put_u32(skb, NL80211_RATE_INFO_BITRATE32, bitrate)) { |
| 323 | hdd_err("put fail bitrate: %u", bitrate); |
| 324 | goto fail; |
| 325 | } |
| 326 | } else { |
| 327 | hdd_err("Invalid bitrate: %u", bitrate); |
| 328 | } |
| 329 | |
| 330 | if (bitrate_compat > 0) { |
| 331 | if (nla_put_u16(skb, NL80211_RATE_INFO_BITRATE, |
| 332 | bitrate_compat)) { |
| 333 | hdd_err("put fail bitrate_compat: %u", bitrate_compat); |
| 334 | goto fail; |
| 335 | } |
| 336 | } else { |
| 337 | hdd_err("Invalid bitrate_compat: %u", bitrate_compat); |
| 338 | } |
| 339 | |
| 340 | if (nla_put_u8(skb, NL80211_RATE_INFO_VHT_NSS, |
| 341 | hdd_sta_ctx->cache_conn_info.txrate.nss)) { |
| 342 | hdd_err("put fail"); |
| 343 | goto fail; |
| 344 | } |
| 345 | nla_nest_end(skb, nla_attr); |
| 346 | return 0; |
| 347 | fail: |
| 348 | return -EINVAL; |
| 349 | } |
| 350 | |
| 351 | /** |
| 352 | * hdd_add_sta_info() - add station info attribute |
| 353 | * @skb: pointer to sk buff |
| 354 | * @hdd_sta_ctx: pointer to hdd station context |
| 355 | * @idx: attribute index |
| 356 | * |
| 357 | * Return: Success(0) or reason code for failure |
| 358 | */ |
| 359 | static int32_t hdd_add_sta_info(struct sk_buff *skb, |
| 360 | struct hdd_station_ctx *hdd_sta_ctx, |
| 361 | int idx) |
| 362 | { |
| 363 | struct nlattr *nla_attr; |
| 364 | |
| 365 | nla_attr = nla_nest_start(skb, idx); |
| 366 | if (!nla_attr) { |
| 367 | hdd_err("nla_nest_start failed"); |
| 368 | goto fail; |
| 369 | } |
| 370 | |
| 371 | if (nla_put_u8(skb, NL80211_STA_INFO_SIGNAL, |
| 372 | (hdd_sta_ctx->cache_conn_info.signal + 100))) { |
| 373 | hdd_err("put fail"); |
| 374 | goto fail; |
| 375 | } |
| 376 | if (hdd_add_tx_bitrate(skb, hdd_sta_ctx, NL80211_STA_INFO_TX_BITRATE)) { |
| 377 | hdd_err("hdd_add_tx_bitrate failed"); |
| 378 | goto fail; |
| 379 | } |
| 380 | |
| 381 | nla_nest_end(skb, nla_attr); |
| 382 | return 0; |
| 383 | fail: |
| 384 | return -EINVAL; |
| 385 | } |
| 386 | |
| 387 | /** |
| 388 | * hdd_add_survey_info() - add survey info attribute |
| 389 | * @skb: pointer to sk buff |
| 390 | * @hdd_sta_ctx: pointer to hdd station context |
| 391 | * @idx: attribute index |
| 392 | * |
| 393 | * Return: Success(0) or reason code for failure |
| 394 | */ |
| 395 | static int32_t hdd_add_survey_info(struct sk_buff *skb, |
| 396 | struct hdd_station_ctx *hdd_sta_ctx, |
| 397 | int idx) |
| 398 | { |
| 399 | struct nlattr *nla_attr; |
| 400 | |
| 401 | nla_attr = nla_nest_start(skb, idx); |
| 402 | if (!nla_attr) |
| 403 | goto fail; |
| 404 | if (nla_put_u32(skb, NL80211_SURVEY_INFO_FREQUENCY, |
| 405 | hdd_sta_ctx->cache_conn_info.freq) || |
| 406 | nla_put_u8(skb, NL80211_SURVEY_INFO_NOISE, |
| 407 | (hdd_sta_ctx->cache_conn_info.noise + 100))) { |
| 408 | hdd_err("put fail"); |
| 409 | goto fail; |
| 410 | } |
| 411 | nla_nest_end(skb, nla_attr); |
| 412 | return 0; |
| 413 | fail: |
| 414 | return -EINVAL; |
| 415 | } |
| 416 | |
| 417 | /** |
| 418 | * hdd_add_link_standard_info() - add link info attribute |
| 419 | * @skb: pointer to sk buff |
| 420 | * @hdd_sta_ctx: pointer to hdd station context |
| 421 | * @idx: attribute index |
| 422 | * |
| 423 | * Return: Success(0) or reason code for failure |
| 424 | */ |
| 425 | static int32_t |
| 426 | hdd_add_link_standard_info(struct sk_buff *skb, |
| 427 | struct hdd_station_ctx *hdd_sta_ctx, int idx) |
| 428 | { |
| 429 | struct nlattr *nla_attr; |
| 430 | |
| 431 | nla_attr = nla_nest_start(skb, idx); |
| 432 | if (!nla_attr) { |
| 433 | hdd_err("nla_nest_start failed"); |
| 434 | goto fail; |
| 435 | } |
| 436 | |
| 437 | if (nla_put(skb, |
| 438 | NL80211_ATTR_SSID, |
| 439 | hdd_sta_ctx->cache_conn_info.last_ssid.SSID.length, |
| 440 | hdd_sta_ctx->cache_conn_info.last_ssid.SSID.ssId)) { |
| 441 | hdd_err("put fail"); |
| 442 | goto fail; |
| 443 | } |
| 444 | if (nla_put(skb, NL80211_ATTR_MAC, QDF_MAC_ADDR_SIZE, |
| 445 | hdd_sta_ctx->cache_conn_info.bssId.bytes)) { |
| 446 | hdd_err("put bssid failed"); |
| 447 | goto fail; |
| 448 | } |
| 449 | if (hdd_add_survey_info(skb, hdd_sta_ctx, NL80211_ATTR_SURVEY_INFO)) { |
| 450 | hdd_err("hdd_add_survey_info failed"); |
| 451 | goto fail; |
| 452 | } |
| 453 | |
| 454 | if (hdd_add_sta_info(skb, hdd_sta_ctx, NL80211_ATTR_STA_INFO)) { |
| 455 | hdd_err("hdd_add_sta_info failed"); |
| 456 | goto fail; |
| 457 | } |
| 458 | nla_nest_end(skb, nla_attr); |
| 459 | return 0; |
| 460 | fail: |
| 461 | return -EINVAL; |
| 462 | } |
| 463 | |
| 464 | /** |
| 465 | * hdd_add_ap_standard_info() - add ap info attribute |
| 466 | * @skb: pointer to sk buff |
| 467 | * @hdd_sta_ctx: pointer to hdd station context |
| 468 | * @idx: attribute index |
| 469 | * |
| 470 | * Return: Success(0) or reason code for failure |
| 471 | */ |
| 472 | static int32_t |
| 473 | hdd_add_ap_standard_info(struct sk_buff *skb, |
| 474 | struct hdd_station_ctx *hdd_sta_ctx, int idx) |
| 475 | { |
| 476 | struct nlattr *nla_attr; |
| 477 | |
| 478 | nla_attr = nla_nest_start(skb, idx); |
| 479 | if (!nla_attr) |
| 480 | goto fail; |
| 481 | if (hdd_sta_ctx->cache_conn_info.conn_flag.vht_present) |
| 482 | if (nla_put(skb, NL80211_ATTR_VHT_CAPABILITY, |
| 483 | sizeof(hdd_sta_ctx->cache_conn_info.vht_caps), |
| 484 | &hdd_sta_ctx->cache_conn_info.vht_caps)) { |
| 485 | hdd_err("put fail"); |
| 486 | goto fail; |
| 487 | } |
| 488 | if (hdd_sta_ctx->cache_conn_info.conn_flag.ht_present) |
| 489 | if (nla_put(skb, NL80211_ATTR_HT_CAPABILITY, |
| 490 | sizeof(hdd_sta_ctx->cache_conn_info.ht_caps), |
| 491 | &hdd_sta_ctx->cache_conn_info.ht_caps)) { |
| 492 | hdd_err("put fail"); |
| 493 | goto fail; |
| 494 | } |
| 495 | nla_nest_end(skb, nla_attr); |
| 496 | return 0; |
| 497 | fail: |
| 498 | return -EINVAL; |
| 499 | } |
| 500 | |
| 501 | /** |
| 502 | * hdd_get_station_info() - send BSS information to supplicant |
| 503 | * @hdd_ctx: pointer to hdd context |
| 504 | * @adapter: pointer to adapter |
| 505 | * |
| 506 | * Return: 0 if success else error status |
| 507 | */ |
| 508 | static int hdd_get_station_info(struct hdd_context *hdd_ctx, |
| 509 | struct hdd_adapter *adapter) |
| 510 | { |
| 511 | struct sk_buff *skb = NULL; |
| 512 | uint8_t *tmp_hs20 = NULL; |
| 513 | uint32_t nl_buf_len; |
| 514 | struct hdd_station_ctx *hdd_sta_ctx; |
| 515 | |
| 516 | hdd_sta_ctx = WLAN_HDD_GET_STATION_CTX_PTR(adapter); |
| 517 | |
| 518 | nl_buf_len = NLMSG_HDRLEN; |
| 519 | nl_buf_len += sizeof(hdd_sta_ctx-> |
| 520 | cache_conn_info.last_ssid.SSID.length) + |
| 521 | QDF_MAC_ADDR_SIZE + |
| 522 | sizeof(hdd_sta_ctx->cache_conn_info.freq) + |
| 523 | sizeof(hdd_sta_ctx->cache_conn_info.noise) + |
| 524 | sizeof(hdd_sta_ctx->cache_conn_info.signal) + |
| 525 | (sizeof(uint32_t) * 2) + |
| 526 | sizeof(hdd_sta_ctx->cache_conn_info.txrate.nss) + |
| 527 | sizeof(hdd_sta_ctx->cache_conn_info.roam_count) + |
| 528 | sizeof(hdd_sta_ctx->cache_conn_info.last_auth_type) + |
| 529 | sizeof(hdd_sta_ctx->cache_conn_info.dot11Mode); |
| 530 | if (hdd_sta_ctx->cache_conn_info.conn_flag.vht_present) |
| 531 | nl_buf_len += sizeof(hdd_sta_ctx->cache_conn_info.vht_caps); |
| 532 | if (hdd_sta_ctx->cache_conn_info.conn_flag.ht_present) |
| 533 | nl_buf_len += sizeof(hdd_sta_ctx->cache_conn_info.ht_caps); |
| 534 | if (hdd_sta_ctx->cache_conn_info.conn_flag.hs20_present) { |
| 535 | tmp_hs20 = (uint8_t *)&(hdd_sta_ctx-> |
| 536 | cache_conn_info.hs20vendor_ie); |
| 537 | nl_buf_len += (sizeof(hdd_sta_ctx-> |
| 538 | cache_conn_info.hs20vendor_ie) - 1); |
| 539 | } |
| 540 | if (hdd_sta_ctx->cache_conn_info.conn_flag.ht_op_present) |
| 541 | nl_buf_len += sizeof(hdd_sta_ctx-> |
| 542 | cache_conn_info.ht_operation); |
| 543 | if (hdd_sta_ctx->cache_conn_info.conn_flag.vht_op_present) |
| 544 | nl_buf_len += sizeof(hdd_sta_ctx-> |
| 545 | cache_conn_info.vht_operation); |
| 546 | |
| 547 | skb = cfg80211_vendor_cmd_alloc_reply_skb(hdd_ctx->wiphy, nl_buf_len); |
| 548 | if (!skb) { |
| 549 | hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed"); |
| 550 | return -ENOMEM; |
| 551 | } |
| 552 | |
| 553 | if (hdd_add_link_standard_info(skb, hdd_sta_ctx, |
| 554 | LINK_INFO_STANDARD_NL80211_ATTR)) { |
| 555 | hdd_err("put fail"); |
| 556 | goto fail; |
| 557 | } |
| 558 | if (hdd_add_ap_standard_info(skb, hdd_sta_ctx, |
| 559 | AP_INFO_STANDARD_NL80211_ATTR)) { |
| 560 | hdd_err("put fail"); |
| 561 | goto fail; |
| 562 | } |
| 563 | if (nla_put_u32(skb, INFO_ROAM_COUNT, |
| 564 | hdd_sta_ctx->cache_conn_info.roam_count) || |
| 565 | nla_put_u32(skb, INFO_AKM, |
| 566 | hdd_convert_auth_type( |
| 567 | hdd_sta_ctx->cache_conn_info.last_auth_type)) || |
| 568 | nla_put_u32(skb, WLAN802_11_MODE, |
| 569 | hdd_convert_dot11mode( |
| 570 | hdd_sta_ctx->cache_conn_info.dot11Mode))) { |
| 571 | hdd_err("put fail"); |
| 572 | goto fail; |
| 573 | } |
| 574 | if (hdd_sta_ctx->cache_conn_info.conn_flag.ht_op_present) |
| 575 | if (nla_put(skb, HT_OPERATION, |
| 576 | (sizeof(hdd_sta_ctx->cache_conn_info.ht_operation)), |
| 577 | &hdd_sta_ctx->cache_conn_info.ht_operation)) { |
| 578 | hdd_err("put fail"); |
| 579 | goto fail; |
| 580 | } |
| 581 | if (hdd_sta_ctx->cache_conn_info.conn_flag.vht_op_present) |
| 582 | if (nla_put(skb, VHT_OPERATION, |
| 583 | (sizeof(hdd_sta_ctx-> |
| 584 | cache_conn_info.vht_operation)), |
| 585 | &hdd_sta_ctx->cache_conn_info.vht_operation)) { |
| 586 | hdd_err("put fail"); |
| 587 | goto fail; |
| 588 | } |
| 589 | if (hdd_sta_ctx->cache_conn_info.conn_flag.hs20_present) |
| 590 | if (nla_put(skb, AP_INFO_HS20_INDICATION, |
| 591 | (sizeof(hdd_sta_ctx->cache_conn_info.hs20vendor_ie) |
| 592 | - 1), |
| 593 | tmp_hs20 + 1)) { |
| 594 | hdd_err("put fail"); |
| 595 | goto fail; |
| 596 | } |
| 597 | |
| 598 | return cfg80211_vendor_cmd_reply(skb); |
| 599 | fail: |
| 600 | if (skb) |
| 601 | kfree_skb(skb); |
| 602 | return -EINVAL; |
| 603 | } |
| 604 | |
| 605 | #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)) |
| 606 | static inline int32_t remote_station_put_u64(struct sk_buff *skb, |
| 607 | int32_t attrtype, |
| 608 | uint64_t value) |
| 609 | { |
| 610 | return nla_put_u64_64bit(skb, attrtype, value, REMOTE_PAD); |
| 611 | } |
| 612 | #else |
| 613 | static inline int32_t remote_station_put_u64(struct sk_buff *skb, |
| 614 | int32_t attrtype, |
| 615 | uint64_t value) |
| 616 | { |
| 617 | return nla_put_u64(skb, attrtype, value); |
| 618 | } |
| 619 | #endif |
| 620 | |
| 621 | /** |
| 622 | * hdd_add_survey_info_sap_get_len - get data length used in |
| 623 | * hdd_add_survey_info_sap() |
| 624 | * |
| 625 | * This function calculates the data length used in hdd_add_survey_info_sap() |
| 626 | * |
| 627 | * Return: total data length used in hdd_add_survey_info_sap() |
| 628 | */ |
| 629 | static uint32_t hdd_add_survey_info_sap_get_len(void) |
| 630 | { |
| 631 | return ((NLA_HDRLEN) + (sizeof(uint32_t) + NLA_HDRLEN)); |
| 632 | } |
| 633 | |
| 634 | /** |
| 635 | * hdd_add_survey_info - add survey info attribute |
| 636 | * @skb: pointer to response skb buffer |
| 637 | * @stainfo: station information |
| 638 | * @idx: attribute type index for nla_next_start() |
| 639 | * |
| 640 | * This function adds survey info attribute to response skb buffer |
| 641 | * |
| 642 | * Return : 0 on success and errno on failure |
| 643 | */ |
| 644 | static int32_t hdd_add_survey_info_sap(struct sk_buff *skb, |
| 645 | struct hdd_station_info *stainfo, |
| 646 | int idx) |
| 647 | { |
| 648 | struct nlattr *nla_attr; |
| 649 | |
| 650 | nla_attr = nla_nest_start(skb, idx); |
| 651 | if (!nla_attr) |
| 652 | goto fail; |
| 653 | if (nla_put_u32(skb, NL80211_SURVEY_INFO_FREQUENCY, |
| 654 | stainfo->freq)) { |
| 655 | hdd_err("put fail"); |
| 656 | goto fail; |
| 657 | } |
| 658 | nla_nest_end(skb, nla_attr); |
| 659 | return 0; |
| 660 | fail: |
| 661 | return -EINVAL; |
| 662 | } |
| 663 | |
| 664 | /** |
| 665 | * hdd_add_tx_bitrate_sap_get_len - get data length used in |
| 666 | * hdd_add_tx_bitrate_sap() |
| 667 | * |
| 668 | * This function calculates the data length used in hdd_add_tx_bitrate_sap() |
| 669 | * |
| 670 | * Return: total data length used in hdd_add_tx_bitrate_sap() |
| 671 | */ |
| 672 | static uint32_t hdd_add_tx_bitrate_sap_get_len(void) |
| 673 | { |
| 674 | return ((NLA_HDRLEN) + (sizeof(uint8_t) + NLA_HDRLEN)); |
| 675 | } |
| 676 | |
| 677 | /** |
| 678 | * hdd_add_tx_bitrate_sap - add vhs nss info attribute |
| 679 | * @skb: pointer to response skb buffer |
| 680 | * @stainfo: station information |
| 681 | * @idx: attribute type index for nla_next_start() |
| 682 | * |
| 683 | * This function adds vht nss attribute to response skb buffer |
| 684 | * |
| 685 | * Return : 0 on success and errno on failure |
| 686 | */ |
| 687 | static int hdd_add_tx_bitrate_sap(struct sk_buff *skb, |
| 688 | struct hdd_station_info *stainfo, |
| 689 | int idx) |
| 690 | { |
| 691 | struct nlattr *nla_attr; |
| 692 | |
| 693 | nla_attr = nla_nest_start(skb, idx); |
| 694 | if (!nla_attr) |
| 695 | goto fail; |
| 696 | |
| 697 | if (nla_put_u8(skb, NL80211_RATE_INFO_VHT_NSS, |
| 698 | stainfo->nss)) { |
| 699 | hdd_err("put fail"); |
| 700 | goto fail; |
| 701 | } |
| 702 | nla_nest_end(skb, nla_attr); |
| 703 | return 0; |
| 704 | fail: |
| 705 | return -EINVAL; |
| 706 | } |
| 707 | |
| 708 | /** |
| 709 | * hdd_add_sta_info_sap_get_len - get data length used in |
| 710 | * hdd_add_sta_info_sap() |
| 711 | * |
| 712 | * This function calculates the data length used in hdd_add_sta_info_sap() |
| 713 | * |
| 714 | * Return: total data length used in hdd_add_sta_info_sap() |
| 715 | */ |
| 716 | static uint32_t hdd_add_sta_info_sap_get_len(void) |
| 717 | { |
| 718 | return ((NLA_HDRLEN) + (sizeof(uint8_t) + NLA_HDRLEN) + |
| 719 | hdd_add_tx_bitrate_sap_get_len()); |
| 720 | } |
| 721 | |
| 722 | /** |
| 723 | * hdd_add_sta_info_sap - add sta signal info attribute |
| 724 | * @skb: pointer to response skb buffer |
| 725 | * @stainfo: station information |
| 726 | * @idx: attribute type index for nla_next_start() |
| 727 | * |
| 728 | * This function adds sta signal attribute to response skb buffer |
| 729 | * |
| 730 | * Return : 0 on success and errno on failure |
| 731 | */ |
| 732 | static int32_t hdd_add_sta_info_sap(struct sk_buff *skb, int8_t rssi, |
| 733 | struct hdd_station_info *stainfo, int idx) |
| 734 | { |
| 735 | struct nlattr *nla_attr; |
| 736 | |
| 737 | nla_attr = nla_nest_start(skb, idx); |
| 738 | if (!nla_attr) |
| 739 | goto fail; |
| 740 | |
| 741 | if (nla_put_u8(skb, NL80211_STA_INFO_SIGNAL, rssi)) { |
| 742 | hdd_err("put fail"); |
| 743 | goto fail; |
| 744 | } |
| 745 | if (hdd_add_tx_bitrate_sap(skb, stainfo, NL80211_STA_INFO_TX_BITRATE)) |
| 746 | goto fail; |
| 747 | |
| 748 | nla_nest_end(skb, nla_attr); |
| 749 | return 0; |
| 750 | fail: |
| 751 | return -EINVAL; |
| 752 | } |
| 753 | |
| 754 | /** |
| 755 | * hdd_add_link_standard_info_sap_get_len - get data length used in |
| 756 | * hdd_add_link_standard_info_sap() |
| 757 | * |
| 758 | * This function calculates the data length used in |
| 759 | * hdd_add_link_standard_info_sap() |
| 760 | * |
| 761 | * Return: total data length used in hdd_add_link_standard_info_sap() |
| 762 | */ |
| 763 | static uint32_t hdd_add_link_standard_info_sap_get_len(void) |
| 764 | { |
| 765 | return ((NLA_HDRLEN) + |
| 766 | hdd_add_survey_info_sap_get_len() + |
| 767 | hdd_add_sta_info_sap_get_len() + |
| 768 | (sizeof(uint32_t) + NLA_HDRLEN)); |
| 769 | } |
| 770 | |
| 771 | /** |
| 772 | * hdd_add_link_standard_info_sap - add add link info attribut |
| 773 | * @skb: pointer to response skb buffer |
| 774 | * @stainfo: station information |
| 775 | * @idx: attribute type index for nla_next_start() |
| 776 | * |
| 777 | * This function adds link info attribut to response skb buffer |
| 778 | * |
| 779 | * Return : 0 on success and errno on failure |
| 780 | */ |
| 781 | static int hdd_add_link_standard_info_sap(struct sk_buff *skb, int8_t rssi, |
| 782 | struct hdd_station_info *stainfo, |
| 783 | int idx) |
| 784 | { |
| 785 | struct nlattr *nla_attr; |
| 786 | |
| 787 | nla_attr = nla_nest_start(skb, idx); |
| 788 | if (!nla_attr) |
| 789 | goto fail; |
| 790 | if (hdd_add_survey_info_sap(skb, stainfo, NL80211_ATTR_SURVEY_INFO)) |
| 791 | goto fail; |
| 792 | if (hdd_add_sta_info_sap(skb, rssi, stainfo, NL80211_ATTR_STA_INFO)) |
| 793 | goto fail; |
| 794 | |
| 795 | if (nla_put_u32(skb, NL80211_ATTR_REASON_CODE, stainfo->reason_code)) { |
| 796 | hdd_err("Reason code put fail"); |
| 797 | goto fail; |
| 798 | } |
| 799 | |
| 800 | nla_nest_end(skb, nla_attr); |
| 801 | return 0; |
| 802 | fail: |
| 803 | return -EINVAL; |
| 804 | } |
| 805 | |
| 806 | /** |
| 807 | * hdd_add_ap_standard_info_sap_get_len - get data length used in |
| 808 | * hdd_add_ap_standard_info_sap() |
| 809 | * @stainfo: station information |
| 810 | * |
| 811 | * This function calculates the data length used in |
| 812 | * hdd_add_ap_standard_info_sap() |
| 813 | * |
| 814 | * Return: total data length used in hdd_add_ap_standard_info_sap() |
| 815 | */ |
| 816 | static uint32_t hdd_add_ap_standard_info_sap_get_len( |
| 817 | struct hdd_station_info *stainfo) |
| 818 | { |
| 819 | uint32_t len; |
| 820 | |
| 821 | len = NLA_HDRLEN; |
| 822 | if (stainfo->vht_present) |
| 823 | len += (sizeof(stainfo->vht_caps) + NLA_HDRLEN); |
| 824 | if (stainfo->ht_present) |
| 825 | len += (sizeof(stainfo->ht_caps) + NLA_HDRLEN); |
| 826 | |
| 827 | return len; |
| 828 | } |
| 829 | |
| 830 | /** |
| 831 | * hdd_add_ap_standard_info_sap - add HT and VHT info attributes |
| 832 | * @skb: pointer to response skb buffer |
| 833 | * @stainfo: station information |
| 834 | * @idx: attribute type index for nla_next_start() |
| 835 | * |
| 836 | * This function adds HT and VHT info attributes to response skb buffer |
| 837 | * |
| 838 | * Return : 0 on success and errno on failure |
| 839 | */ |
| 840 | static int hdd_add_ap_standard_info_sap(struct sk_buff *skb, |
| 841 | struct hdd_station_info *stainfo, |
| 842 | int idx) |
| 843 | { |
| 844 | struct nlattr *nla_attr; |
| 845 | |
| 846 | nla_attr = nla_nest_start(skb, idx); |
| 847 | if (!nla_attr) |
| 848 | goto fail; |
| 849 | |
| 850 | if (stainfo->vht_present) { |
| 851 | if (nla_put(skb, NL80211_ATTR_VHT_CAPABILITY, |
| 852 | sizeof(stainfo->vht_caps), |
| 853 | &stainfo->vht_caps)) { |
| 854 | hdd_err("put fail"); |
| 855 | goto fail; |
| 856 | } |
| 857 | } |
| 858 | if (stainfo->ht_present) { |
| 859 | if (nla_put(skb, NL80211_ATTR_HT_CAPABILITY, |
| 860 | sizeof(stainfo->ht_caps), |
| 861 | &stainfo->ht_caps)) { |
| 862 | hdd_err("put fail"); |
| 863 | goto fail; |
| 864 | } |
| 865 | } |
| 866 | nla_nest_end(skb, nla_attr); |
| 867 | return 0; |
| 868 | fail: |
| 869 | return -EINVAL; |
| 870 | } |
| 871 | |
| 872 | /** |
| 873 | * hdd_decode_ch_width - decode channel band width based |
| 874 | * @ch_width: encoded enum value holding channel band width |
| 875 | * |
| 876 | * This function decodes channel band width from the given encoded enum value. |
| 877 | * |
| 878 | * Returns: decoded channel band width. |
| 879 | */ |
| 880 | static uint8_t hdd_decode_ch_width(tSirMacHTChannelWidth ch_width) |
| 881 | { |
| 882 | switch (ch_width) { |
| 883 | case 0: |
| 884 | return 20; |
| 885 | case 1: |
| 886 | return 40; |
| 887 | case 2: |
| 888 | return 80; |
| 889 | case 3: |
| 890 | case 4: |
| 891 | return 160; |
| 892 | default: |
| 893 | hdd_debug("invalid enum: %d", ch_width); |
| 894 | return 20; |
| 895 | } |
| 896 | } |
| 897 | |
| 898 | /** |
| 899 | * hdd_get_cached_station_remote() - get cached(deleted) peer's info |
| 900 | * @hdd_ctx: hdd context |
| 901 | * @adapter: hostapd interface |
| 902 | * @mac_addr: mac address of requested peer |
| 903 | * |
| 904 | * This function collect and indicate the cached(deleted) peer's info |
| 905 | * |
| 906 | * Return: 0 on success, otherwise error value |
| 907 | */ |
| 908 | |
| 909 | static int hdd_get_cached_station_remote(struct hdd_context *hdd_ctx, |
| 910 | struct hdd_adapter *adapter, |
| 911 | struct qdf_mac_addr mac_addr) |
| 912 | { |
| 913 | struct hdd_station_info *stainfo = hdd_get_stainfo( |
| 914 | adapter->cache_sta_info, |
| 915 | mac_addr); |
| 916 | struct sk_buff *skb = NULL; |
| 917 | uint32_t nl_buf_len = NLMSG_HDRLEN; |
| 918 | uint8_t channel_width; |
| 919 | |
| 920 | if (!stainfo) { |
| 921 | hdd_err("peer " MAC_ADDRESS_STR " not found", |
| 922 | MAC_ADDR_ARRAY(mac_addr.bytes)); |
| 923 | return -EINVAL; |
| 924 | } |
| 925 | |
| 926 | nl_buf_len += hdd_add_link_standard_info_sap_get_len() + |
| 927 | hdd_add_ap_standard_info_sap_get_len(stainfo) + |
| 928 | (sizeof(stainfo->dot11_mode) + NLA_HDRLEN) + |
| 929 | (sizeof(stainfo->ch_width) + NLA_HDRLEN) + |
| 930 | (sizeof(stainfo->tx_rate) + NLA_HDRLEN) + |
| 931 | (sizeof(stainfo->rx_rate) + NLA_HDRLEN); |
| 932 | |
| 933 | skb = cfg80211_vendor_cmd_alloc_reply_skb(hdd_ctx->wiphy, nl_buf_len); |
| 934 | if (!skb) { |
| 935 | hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed"); |
| 936 | return -ENOMEM; |
| 937 | } |
| 938 | |
| 939 | if (hdd_add_link_standard_info_sap(skb, stainfo->rssi, stainfo, |
| 940 | LINK_INFO_STANDARD_NL80211_ATTR)) { |
| 941 | hdd_err("link standard put fail"); |
| 942 | goto fail; |
| 943 | } |
| 944 | |
| 945 | if (hdd_add_ap_standard_info_sap(skb, stainfo, |
| 946 | AP_INFO_STANDARD_NL80211_ATTR)) { |
| 947 | hdd_err("ap standard put fail"); |
| 948 | goto fail; |
| 949 | } |
| 950 | |
| 951 | /* upper layer expects decoded channel BW */ |
| 952 | channel_width = hdd_decode_ch_width(stainfo->ch_width); |
| 953 | |
| 954 | if (nla_put_u32(skb, REMOTE_SUPPORTED_MODE, |
| 955 | hdd_convert_dot11mode( |
| 956 | stainfo->mode)) || |
| 957 | nla_put_u8(skb, REMOTE_CH_WIDTH, channel_width)) { |
| 958 | hdd_err("remote ch put fail"); |
| 959 | goto fail; |
| 960 | } |
| 961 | if (nla_put_u32(skb, REMOTE_LAST_TX_RATE, stainfo->tx_rate)) { |
| 962 | hdd_err("tx rate put fail"); |
| 963 | goto fail; |
| 964 | } |
| 965 | if (nla_put_u32(skb, REMOTE_LAST_RX_RATE, stainfo->rx_rate)) { |
| 966 | hdd_err("rx rate put fail"); |
| 967 | goto fail; |
| 968 | } |
| 969 | |
| 970 | qdf_mem_zero(stainfo, sizeof(*stainfo)); |
| 971 | |
| 972 | return cfg80211_vendor_cmd_reply(skb); |
| 973 | fail: |
| 974 | if (skb) |
| 975 | kfree_skb(skb); |
| 976 | |
| 977 | return -EINVAL; |
| 978 | } |
| 979 | |
| 980 | /** |
| 981 | * hdd_get_cached_station_remote() - get connected peer's info |
| 982 | * @hdd_ctx: hdd context |
| 983 | * @adapter: hostapd interface |
| 984 | * @mac_addr: mac address of requested peer |
| 985 | * |
| 986 | * This function collect and indicate the connected peer's info |
| 987 | * |
| 988 | * Return: 0 on success, otherwise error value |
| 989 | */ |
| 990 | static int hdd_get_connected_station_info(struct hdd_context *hdd_ctx, |
| 991 | struct hdd_adapter *adapter, |
| 992 | struct qdf_mac_addr mac_addr, |
| 993 | struct hdd_station_info *stainfo) |
| 994 | { |
| 995 | struct sk_buff *skb = NULL; |
| 996 | uint32_t nl_buf_len; |
| 997 | struct sir_peer_info_ext peer_info; |
| 998 | bool txrx_rate = true; |
| 999 | |
| 1000 | nl_buf_len = NLMSG_HDRLEN; |
| 1001 | nl_buf_len += (sizeof(stainfo->max_phy_rate) + NLA_HDRLEN) + |
| 1002 | (sizeof(stainfo->tx_packets) + NLA_HDRLEN) + |
| 1003 | (sizeof(stainfo->tx_bytes) + NLA_HDRLEN) + |
| 1004 | (sizeof(stainfo->rx_packets) + NLA_HDRLEN) + |
| 1005 | (sizeof(stainfo->rx_bytes) + NLA_HDRLEN) + |
| 1006 | (sizeof(stainfo->is_qos_enabled) + NLA_HDRLEN) + |
| 1007 | (sizeof(stainfo->mode) + NLA_HDRLEN); |
| 1008 | |
| 1009 | if (!hdd_ctx->config->sap_get_peer_info || |
| 1010 | wlan_hdd_get_peer_info(adapter, mac_addr, &peer_info)) { |
| 1011 | hdd_err("fail to get tx/rx rate"); |
| 1012 | txrx_rate = false; |
| 1013 | } else { |
| 1014 | stainfo->tx_rate = peer_info.tx_rate; |
| 1015 | stainfo->rx_rate = peer_info.rx_rate; |
| 1016 | nl_buf_len += (sizeof(stainfo->tx_rate) + NLA_HDRLEN) + |
| 1017 | (sizeof(stainfo->rx_rate) + NLA_HDRLEN); |
| 1018 | } |
| 1019 | |
| 1020 | /* below info is only valid for HT/VHT mode */ |
| 1021 | if (stainfo->mode > SIR_SME_PHY_MODE_LEGACY) |
| 1022 | nl_buf_len += (sizeof(stainfo->ampdu) + NLA_HDRLEN) + |
| 1023 | (sizeof(stainfo->tx_stbc) + NLA_HDRLEN) + |
| 1024 | (sizeof(stainfo->rx_stbc) + NLA_HDRLEN) + |
| 1025 | (sizeof(stainfo->ch_width) + NLA_HDRLEN) + |
| 1026 | (sizeof(stainfo->sgi_enable) + NLA_HDRLEN); |
| 1027 | |
| 1028 | hdd_info("buflen %d hdrlen %d", nl_buf_len, NLMSG_HDRLEN); |
| 1029 | |
| 1030 | skb = cfg80211_vendor_cmd_alloc_reply_skb(hdd_ctx->wiphy, |
| 1031 | nl_buf_len); |
| 1032 | if (!skb) { |
| 1033 | hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed"); |
| 1034 | goto fail; |
| 1035 | } |
| 1036 | |
| 1037 | hdd_info("stainfo"); |
| 1038 | hdd_info("maxrate %x tx_pkts %x tx_bytes %llx", |
| 1039 | stainfo->max_phy_rate, stainfo->tx_packets, |
| 1040 | stainfo->tx_bytes); |
| 1041 | hdd_info("rx_pkts %x rx_bytes %llx mode %x", |
| 1042 | stainfo->rx_packets, stainfo->rx_bytes, |
| 1043 | stainfo->mode); |
| 1044 | if (stainfo->mode > SIR_SME_PHY_MODE_LEGACY) { |
| 1045 | hdd_info("ampdu %d tx_stbc %d rx_stbc %d", |
| 1046 | stainfo->ampdu, stainfo->tx_stbc, |
| 1047 | stainfo->rx_stbc); |
| 1048 | hdd_info("wmm %d chwidth %d sgi %d", |
| 1049 | stainfo->is_qos_enabled, |
| 1050 | stainfo->ch_width, |
| 1051 | stainfo->sgi_enable); |
| 1052 | } |
| 1053 | |
| 1054 | if (nla_put_u32(skb, REMOTE_MAX_PHY_RATE, stainfo->max_phy_rate) || |
| 1055 | nla_put_u32(skb, REMOTE_TX_PACKETS, stainfo->tx_packets) || |
| 1056 | remote_station_put_u64(skb, REMOTE_TX_BYTES, stainfo->tx_bytes) || |
| 1057 | nla_put_u32(skb, REMOTE_RX_PACKETS, stainfo->rx_packets) || |
| 1058 | remote_station_put_u64(skb, REMOTE_RX_BYTES, stainfo->rx_bytes) || |
| 1059 | nla_put_u8(skb, REMOTE_WMM, stainfo->is_qos_enabled) || |
| 1060 | nla_put_u8(skb, REMOTE_SUPPORTED_MODE, stainfo->mode)) { |
| 1061 | hdd_err("put fail"); |
| 1062 | goto fail; |
| 1063 | } |
| 1064 | |
| 1065 | if (txrx_rate) { |
| 1066 | if (nla_put_u32(skb, REMOTE_LAST_TX_RATE, stainfo->tx_rate) || |
| 1067 | nla_put_u32(skb, REMOTE_LAST_RX_RATE, stainfo->rx_rate)) { |
| 1068 | hdd_err("put fail"); |
| 1069 | goto fail; |
| 1070 | } else { |
| 1071 | hdd_info("tx_rate %x rx_rate %x", |
| 1072 | stainfo->tx_rate, stainfo->rx_rate); |
| 1073 | } |
| 1074 | } |
| 1075 | |
| 1076 | if (stainfo->mode > SIR_SME_PHY_MODE_LEGACY) { |
| 1077 | if (nla_put_u8(skb, REMOTE_AMPDU, stainfo->ampdu) || |
| 1078 | nla_put_u8(skb, REMOTE_TX_STBC, stainfo->tx_stbc) || |
| 1079 | nla_put_u8(skb, REMOTE_RX_STBC, stainfo->rx_stbc) || |
| 1080 | nla_put_u8(skb, REMOTE_CH_WIDTH, stainfo->ch_width) || |
| 1081 | nla_put_u8(skb, REMOTE_SGI_ENABLE, stainfo->sgi_enable)) { |
| 1082 | hdd_err("put fail"); |
| 1083 | goto fail; |
| 1084 | } |
| 1085 | } |
| 1086 | |
| 1087 | return cfg80211_vendor_cmd_reply(skb); |
| 1088 | |
| 1089 | fail: |
| 1090 | if (skb) |
| 1091 | kfree_skb(skb); |
| 1092 | |
| 1093 | return -EINVAL; |
| 1094 | } |
| 1095 | |
| 1096 | /** |
| 1097 | * hdd_get_station_remote() - get remote peer's info |
| 1098 | * @hdd_ctx: hdd context |
| 1099 | * @adapter: hostapd interface |
| 1100 | * @mac_addr: mac address of requested peer |
| 1101 | * |
| 1102 | * This function collect and indicate the remote peer's info |
| 1103 | * |
| 1104 | * Return: 0 on success, otherwise error value |
| 1105 | */ |
| 1106 | static int hdd_get_station_remote(struct hdd_context *hdd_ctx, |
| 1107 | struct hdd_adapter *adapter, |
| 1108 | struct qdf_mac_addr mac_addr) |
| 1109 | { |
| 1110 | struct hdd_station_info *stainfo = hdd_get_stainfo(adapter->sta_info, |
| 1111 | mac_addr); |
| 1112 | int status = 0; |
| 1113 | bool is_associated = false; |
| 1114 | |
| 1115 | if (!stainfo) { |
| 1116 | status = hdd_get_cached_station_remote(hdd_ctx, adapter, |
| 1117 | mac_addr); |
| 1118 | return status; |
| 1119 | } |
| 1120 | |
| 1121 | is_associated = hdd_is_peer_associated(adapter, &mac_addr); |
| 1122 | if (!is_associated) { |
| 1123 | status = hdd_get_cached_station_remote(hdd_ctx, adapter, |
| 1124 | mac_addr); |
| 1125 | return status; |
| 1126 | } |
| 1127 | |
| 1128 | status = hdd_get_connected_station_info(hdd_ctx, adapter, |
| 1129 | mac_addr, stainfo); |
| 1130 | return status; |
| 1131 | } |
| 1132 | |
| 1133 | /** |
| 1134 | * __hdd_cfg80211_get_station_cmd() - Handle get station vendor cmd |
| 1135 | * @wiphy: corestack handler |
| 1136 | * @wdev: wireless device |
| 1137 | * @data: data |
| 1138 | * @data_len: data length |
| 1139 | * |
| 1140 | * Handles QCA_NL80211_VENDOR_SUBCMD_GET_STATION. |
| 1141 | * Validate cmd attributes and send the station info to upper layers. |
| 1142 | * |
| 1143 | * Return: Success(0) or reason code for failure |
| 1144 | */ |
| 1145 | static int |
| 1146 | __hdd_cfg80211_get_station_cmd(struct wiphy *wiphy, |
| 1147 | struct wireless_dev *wdev, |
| 1148 | const void *data, |
| 1149 | int data_len) |
| 1150 | { |
| 1151 | struct hdd_context *hdd_ctx = wiphy_priv(wiphy); |
| 1152 | struct net_device *dev = wdev->netdev; |
| 1153 | struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev); |
| 1154 | struct nlattr *tb[QCA_WLAN_VENDOR_ATTR_GET_STATION_MAX + 1]; |
| 1155 | int32_t status; |
| 1156 | |
| 1157 | hdd_enter_dev(dev); |
| 1158 | if (hdd_get_conparam() == QDF_GLOBAL_FTM_MODE) { |
| 1159 | hdd_err("Command not allowed in FTM mode"); |
| 1160 | status = -EPERM; |
| 1161 | goto out; |
| 1162 | } |
| 1163 | |
| 1164 | status = wlan_hdd_validate_context(hdd_ctx); |
| 1165 | if (status != 0) |
| 1166 | goto out; |
| 1167 | |
| 1168 | status = wlan_cfg80211_nla_parse(tb, |
| 1169 | QCA_WLAN_VENDOR_ATTR_GET_STATION_MAX, |
| 1170 | data, data_len, |
| 1171 | hdd_get_station_policy); |
| 1172 | if (status) { |
| 1173 | hdd_err("Invalid ATTR"); |
| 1174 | goto out; |
| 1175 | } |
| 1176 | |
| 1177 | /* Parse and fetch Command Type*/ |
| 1178 | if (tb[STATION_INFO]) { |
| 1179 | status = hdd_get_station_info(hdd_ctx, adapter); |
| 1180 | } else if (tb[STATION_ASSOC_FAIL_REASON]) { |
| 1181 | status = hdd_get_station_assoc_fail(hdd_ctx, adapter); |
| 1182 | } else if (tb[STATION_REMOTE]) { |
| 1183 | struct qdf_mac_addr mac_addr; |
| 1184 | |
| 1185 | if (adapter->device_mode != QDF_SAP_MODE && |
| 1186 | adapter->device_mode != QDF_P2P_GO_MODE) { |
| 1187 | hdd_err("invalid device_mode:%d", adapter->device_mode); |
| 1188 | status = -EINVAL; |
| 1189 | goto out; |
| 1190 | } |
| 1191 | |
| 1192 | nla_memcpy(mac_addr.bytes, tb[STATION_REMOTE], |
| 1193 | QDF_MAC_ADDR_SIZE); |
| 1194 | |
| 1195 | hdd_debug("STATION_REMOTE " MAC_ADDRESS_STR, |
| 1196 | MAC_ADDR_ARRAY(mac_addr.bytes)); |
| 1197 | |
| 1198 | status = hdd_get_station_remote(hdd_ctx, adapter, mac_addr); |
| 1199 | } else { |
| 1200 | hdd_err("get station info cmd type failed"); |
| 1201 | status = -EINVAL; |
| 1202 | goto out; |
| 1203 | } |
| 1204 | hdd_exit(); |
| 1205 | out: |
| 1206 | return status; |
| 1207 | } |
| 1208 | |
| 1209 | int32_t hdd_cfg80211_get_station_cmd(struct wiphy *wiphy, |
| 1210 | struct wireless_dev *wdev, |
| 1211 | const void *data, |
| 1212 | int data_len) |
| 1213 | { |
| 1214 | int ret; |
| 1215 | |
| 1216 | cds_ssr_protect(__func__); |
| 1217 | ret = __hdd_cfg80211_get_station_cmd(wiphy, wdev, data, data_len); |
| 1218 | cds_ssr_unprotect(__func__); |
| 1219 | |
| 1220 | return ret; |
| 1221 | } |
| 1222 | |