Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2012-2015 The Linux Foundation. All rights reserved. |
| 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. |
| 20 | */ |
| 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 | |
| 28 | #ifdef FEATURE_OEM_DATA_SUPPORT |
| 29 | |
| 30 | /** |
| 31 | * DOC: wlan_hdd_oemdata.c |
| 32 | * |
| 33 | * Support for generic OEM Data Request handling |
| 34 | * |
| 35 | */ |
| 36 | |
| 37 | #include <linux/version.h> |
| 38 | #include <linux/module.h> |
| 39 | #include <linux/kernel.h> |
| 40 | #include <linux/init.h> |
| 41 | #include <linux/wireless.h> |
| 42 | #include <wlan_hdd_includes.h> |
| 43 | #include <net/arp.h> |
| 44 | #include "qwlan_version.h" |
| 45 | #include "cds_utils.h" |
| 46 | #include "wma.h" |
| 47 | |
| 48 | static struct hdd_context_s *p_hdd_ctx; |
| 49 | |
| 50 | /** |
| 51 | * hdd_oem_data_req_callback() - OEM Data request callback handler |
| 52 | * @hHal: MAC handle |
| 53 | * @pContext: User context. For this callback the net device was registered |
| 54 | * @oemDataReqID: The ID of the request |
| 55 | * @oemDataReqStatus: Status of the request |
| 56 | * |
| 57 | * This function reports the results of the request to user space |
| 58 | * |
| 59 | * Return: CDF_STATUS enumeration |
| 60 | */ |
| 61 | static CDF_STATUS hdd_oem_data_req_callback(tHalHandle hHal, |
| 62 | void *pContext, |
| 63 | uint32_t oemDataReqID, |
| 64 | eOemDataReqStatus oemDataReqStatus) |
| 65 | { |
| 66 | CDF_STATUS status = CDF_STATUS_SUCCESS; |
| 67 | struct net_device *dev = (struct net_device *)pContext; |
| 68 | union iwreq_data wrqu; |
| 69 | char buffer[IW_CUSTOM_MAX + 1]; |
| 70 | |
| 71 | memset(&wrqu, '\0', sizeof(wrqu)); |
| 72 | memset(buffer, '\0', sizeof(buffer)); |
| 73 | |
| 74 | if (oemDataReqStatus == eOEM_DATA_REQ_FAILURE) { |
| 75 | snprintf(buffer, IW_CUSTOM_MAX, "QCOM: OEM-DATA-REQ-FAILED"); |
| 76 | hddLog(LOGW, "%s: oem data req %d failed", __func__, |
| 77 | oemDataReqID); |
| 78 | } else if (oemDataReqStatus == eOEM_DATA_REQ_INVALID_MODE) { |
| 79 | snprintf(buffer, IW_CUSTOM_MAX, |
| 80 | "QCOM: OEM-DATA-REQ-INVALID-MODE"); |
| 81 | hddLog(LOGW, |
| 82 | "%s: oem data req %d failed because the driver is in invalid mode (IBSS|AP)", |
| 83 | __func__, oemDataReqID); |
| 84 | } else { |
| 85 | snprintf(buffer, IW_CUSTOM_MAX, "QCOM: OEM-DATA-REQ-SUCCESS"); |
| 86 | } |
| 87 | |
| 88 | wrqu.data.pointer = buffer; |
| 89 | wrqu.data.length = strlen(buffer); |
| 90 | |
| 91 | wireless_send_event(dev, IWEVCUSTOM, &wrqu, buffer); |
| 92 | |
| 93 | return status; |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * iw_get_oem_data_cap() - Get OEM Data Capabilities |
| 98 | * @dev: net device upon which the request was received |
| 99 | * @info: ioctl request information |
| 100 | * @wrqu: ioctl request data |
| 101 | * @extra: ioctl data payload |
| 102 | * |
| 103 | * This function gets the capability information for OEM Data Request |
| 104 | * and Response. |
| 105 | * |
| 106 | * Return: 0 for success, negative errno value on failure |
| 107 | */ |
| 108 | int iw_get_oem_data_cap(struct net_device *dev, |
| 109 | struct iw_request_info *info, |
| 110 | union iwreq_data *wrqu, char *extra) |
| 111 | { |
| 112 | CDF_STATUS status; |
| 113 | t_iw_oem_data_cap oemDataCap; |
| 114 | t_iw_oem_data_cap *pHddOemDataCap; |
| 115 | hdd_adapter_t *pAdapter = (netdev_priv(dev)); |
| 116 | hdd_context_t *pHddContext; |
| 117 | struct hdd_config *pConfig; |
| 118 | uint32_t numChannels; |
| 119 | uint8_t chanList[OEM_CAP_MAX_NUM_CHANNELS]; |
| 120 | uint32_t i; |
| 121 | int ret; |
| 122 | |
| 123 | ENTER(); |
| 124 | |
| 125 | pHddContext = WLAN_HDD_GET_CTX(pAdapter); |
| 126 | ret = wlan_hdd_validate_context(pHddContext); |
| 127 | if (0 != ret) |
| 128 | return ret; |
| 129 | |
| 130 | pConfig = pHddContext->config; |
| 131 | if (!pConfig) { |
| 132 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 133 | "%s:HDD configuration is null", __func__); |
| 134 | return -ENOENT; |
| 135 | } |
| 136 | |
| 137 | do { |
| 138 | cdf_mem_zero(&oemDataCap, sizeof(oemDataCap)); |
| 139 | strlcpy(oemDataCap.oem_target_signature, OEM_TARGET_SIGNATURE, |
| 140 | OEM_TARGET_SIGNATURE_LEN); |
| 141 | oemDataCap.oem_target_type = pHddContext->target_type; |
| 142 | oemDataCap.oem_fw_version = pHddContext->target_fw_version; |
| 143 | oemDataCap.driver_version.major = QWLAN_VERSION_MAJOR; |
| 144 | oemDataCap.driver_version.minor = QWLAN_VERSION_MINOR; |
| 145 | oemDataCap.driver_version.patch = QWLAN_VERSION_PATCH; |
| 146 | oemDataCap.driver_version.build = QWLAN_VERSION_BUILD; |
| 147 | oemDataCap.allowed_dwell_time_min = |
| 148 | pConfig->nNeighborScanMinChanTime; |
| 149 | oemDataCap.allowed_dwell_time_max = |
| 150 | pConfig->nNeighborScanMaxChanTime; |
| 151 | oemDataCap.curr_dwell_time_min = |
| 152 | sme_get_neighbor_scan_min_chan_time(pHddContext->hHal, |
| 153 | pAdapter->sessionId); |
| 154 | oemDataCap.curr_dwell_time_max = |
| 155 | sme_get_neighbor_scan_max_chan_time(pHddContext->hHal, |
| 156 | pAdapter->sessionId); |
| 157 | oemDataCap.supported_bands = pConfig->nBandCapability; |
| 158 | |
| 159 | /* request for max num of channels */ |
| 160 | numChannels = WNI_CFG_VALID_CHANNEL_LIST_LEN; |
| 161 | status = sme_get_cfg_valid_channels(pHddContext->hHal, |
| 162 | &chanList[0], &numChannels); |
| 163 | if (CDF_STATUS_SUCCESS != status) { |
| 164 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 165 | "%s:failed to get valid channel list", |
| 166 | __func__); |
| 167 | return -ENOENT; |
| 168 | } else { |
| 169 | /* make sure num channels is not more than chan list array */ |
| 170 | if (numChannels > OEM_CAP_MAX_NUM_CHANNELS) { |
| 171 | CDF_TRACE(CDF_MODULE_ID_HDD, |
| 172 | CDF_TRACE_LEVEL_ERROR, |
| 173 | "%s:Num of channels(%d) more than length(%d) of chanlist", |
| 174 | __func__, numChannels, |
| 175 | OEM_CAP_MAX_NUM_CHANNELS); |
| 176 | return -ENOMEM; |
| 177 | } |
| 178 | |
| 179 | oemDataCap.num_channels = numChannels; |
| 180 | for (i = 0; i < numChannels; i++) { |
| 181 | oemDataCap.channel_list[i] = chanList[i]; |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | pHddOemDataCap = (t_iw_oem_data_cap *) (extra); |
| 186 | cdf_mem_copy(pHddOemDataCap, &oemDataCap, |
| 187 | sizeof(*pHddOemDataCap)); |
| 188 | } while (0); |
| 189 | |
| 190 | EXIT(); |
| 191 | return 0; |
| 192 | } |
| 193 | |
| 194 | /** |
| 195 | * send_oem_reg_rsp_nlink_msg() - send oem registration response |
| 196 | * |
| 197 | * This function sends oem message to registered application process |
| 198 | * |
| 199 | * Return: none |
| 200 | */ |
| 201 | static void send_oem_reg_rsp_nlink_msg(void) |
| 202 | { |
| 203 | struct sk_buff *skb; |
| 204 | struct nlmsghdr *nlh; |
| 205 | tAniMsgHdr *aniHdr; |
| 206 | uint8_t *buf; |
| 207 | uint8_t *numInterfaces; |
| 208 | uint8_t *deviceMode; |
| 209 | uint8_t *vdevId; |
| 210 | hdd_adapter_list_node_t *pAdapterNode = NULL; |
| 211 | hdd_adapter_list_node_t *pNext = NULL; |
| 212 | hdd_adapter_t *pAdapter = NULL; |
| 213 | CDF_STATUS status = 0; |
| 214 | |
| 215 | /* OEM message is always to a specific process and cannot be a broadcast */ |
| 216 | if (p_hdd_ctx->oem_pid == 0) { |
| 217 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 218 | "%s: invalid dest pid", __func__); |
| 219 | return; |
| 220 | } |
| 221 | |
| 222 | skb = alloc_skb(NLMSG_SPACE(WLAN_NL_MAX_PAYLOAD), GFP_KERNEL); |
| 223 | if (skb == NULL) { |
| 224 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 225 | "%s: alloc_skb failed", __func__); |
| 226 | return; |
| 227 | } |
| 228 | |
| 229 | nlh = (struct nlmsghdr *)skb->data; |
| 230 | nlh->nlmsg_pid = 0; /* from kernel */ |
| 231 | nlh->nlmsg_flags = 0; |
| 232 | nlh->nlmsg_seq = 0; |
| 233 | nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| 234 | aniHdr = NLMSG_DATA(nlh); |
| 235 | aniHdr->type = ANI_MSG_APP_REG_RSP; |
| 236 | |
| 237 | /* Fill message body: |
| 238 | * First byte will be number of interfaces, followed by |
| 239 | * two bytes for each interfaces |
| 240 | * - one byte for device mode |
| 241 | * - one byte for vdev id |
| 242 | */ |
| 243 | buf = (char *)((char *)aniHdr + sizeof(tAniMsgHdr)); |
| 244 | numInterfaces = buf++; |
| 245 | *numInterfaces = 0; |
| 246 | |
| 247 | /* Iterate through each of the adapters and fill device mode and vdev id */ |
| 248 | status = hdd_get_front_adapter(p_hdd_ctx, &pAdapterNode); |
| 249 | while ((CDF_STATUS_SUCCESS == status) && pAdapterNode) { |
| 250 | pAdapter = pAdapterNode->pAdapter; |
| 251 | if (pAdapter) { |
| 252 | deviceMode = buf++; |
| 253 | vdevId = buf++; |
| 254 | *deviceMode = pAdapter->device_mode; |
| 255 | *vdevId = pAdapter->sessionId; |
| 256 | (*numInterfaces)++; |
| 257 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 258 | "%s: numInterfaces: %d, deviceMode: %d, vdevId: %d", |
| 259 | __func__, *numInterfaces, *deviceMode, |
| 260 | *vdevId); |
| 261 | } |
| 262 | status = hdd_get_next_adapter(p_hdd_ctx, pAdapterNode, &pNext); |
| 263 | pAdapterNode = pNext; |
| 264 | } |
| 265 | |
| 266 | aniHdr->length = |
| 267 | sizeof(uint8_t) + (*numInterfaces) * 2 * sizeof(uint8_t); |
| 268 | nlh->nlmsg_len = NLMSG_LENGTH((sizeof(tAniMsgHdr) + aniHdr->length)); |
| 269 | |
| 270 | skb_put(skb, NLMSG_SPACE((sizeof(tAniMsgHdr) + aniHdr->length))); |
| 271 | |
| 272 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 273 | "%s: sending App Reg Response length (%d) to process pid (%d)", |
| 274 | __func__, aniHdr->length, p_hdd_ctx->oem_pid); |
| 275 | |
| 276 | (void)nl_srv_ucast(skb, p_hdd_ctx->oem_pid, MSG_DONTWAIT); |
| 277 | |
| 278 | return; |
| 279 | } |
| 280 | |
| 281 | /** |
| 282 | * send_oem_err_rsp_nlink_msg() - send oem error response |
| 283 | * @app_pid: PID of oem application process |
| 284 | * @error_code: response error code |
| 285 | * |
| 286 | * This function sends error response to oem app |
| 287 | * |
| 288 | * Return: none |
| 289 | */ |
| 290 | static void send_oem_err_rsp_nlink_msg(int32_t app_pid, uint8_t error_code) |
| 291 | { |
| 292 | struct sk_buff *skb; |
| 293 | struct nlmsghdr *nlh; |
| 294 | tAniMsgHdr *aniHdr; |
| 295 | uint8_t *buf; |
| 296 | |
| 297 | skb = alloc_skb(NLMSG_SPACE(WLAN_NL_MAX_PAYLOAD), GFP_KERNEL); |
| 298 | if (skb == NULL) { |
| 299 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 300 | "%s: alloc_skb failed", __func__); |
| 301 | return; |
| 302 | } |
| 303 | |
| 304 | nlh = (struct nlmsghdr *)skb->data; |
| 305 | nlh->nlmsg_pid = 0; /* from kernel */ |
| 306 | nlh->nlmsg_flags = 0; |
| 307 | nlh->nlmsg_seq = 0; |
| 308 | nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| 309 | aniHdr = NLMSG_DATA(nlh); |
| 310 | aniHdr->type = ANI_MSG_OEM_ERROR; |
| 311 | aniHdr->length = sizeof(uint8_t); |
| 312 | nlh->nlmsg_len = NLMSG_LENGTH(sizeof(tAniMsgHdr) + aniHdr->length); |
| 313 | |
| 314 | /* message body will contain one byte of error code */ |
| 315 | buf = (char *)((char *)aniHdr + sizeof(tAniMsgHdr)); |
| 316 | *buf = error_code; |
| 317 | |
| 318 | skb_put(skb, NLMSG_SPACE(sizeof(tAniMsgHdr) + aniHdr->length)); |
| 319 | |
| 320 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 321 | "%s: sending oem error response to process pid (%d)", |
| 322 | __func__, app_pid); |
| 323 | |
| 324 | (void)nl_srv_ucast(skb, app_pid, MSG_DONTWAIT); |
| 325 | |
| 326 | return; |
| 327 | } |
| 328 | |
| 329 | /** |
| 330 | * hdd_send_oem_data_rsp_msg() - send oem data response |
| 331 | * @length: length of the OEM Data Response message |
| 332 | * @oemDataRsp: the actual OEM Data Response message |
| 333 | * |
| 334 | * This function sends an OEM Data Response message to a registered |
| 335 | * application process over the netlink socket. |
| 336 | * |
| 337 | * Return: 0 for success, non zero for failure |
| 338 | */ |
| 339 | void hdd_send_oem_data_rsp_msg(int length, uint8_t *oemDataRsp) |
| 340 | { |
| 341 | struct sk_buff *skb; |
| 342 | struct nlmsghdr *nlh; |
| 343 | tAniMsgHdr *aniHdr; |
| 344 | uint8_t *oemData; |
| 345 | |
| 346 | /* OEM message is always to a specific process and cannot be a broadcast */ |
| 347 | if (p_hdd_ctx->oem_pid == 0) { |
| 348 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 349 | "%s: invalid dest pid", __func__); |
| 350 | return; |
| 351 | } |
| 352 | |
| 353 | if (length > OEM_DATA_RSP_SIZE) { |
| 354 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 355 | "%s: invalid length of Oem Data response", __func__); |
| 356 | return; |
| 357 | } |
| 358 | |
| 359 | skb = alloc_skb(NLMSG_SPACE(sizeof(tAniMsgHdr) + OEM_DATA_RSP_SIZE), |
| 360 | GFP_KERNEL); |
| 361 | if (skb == NULL) { |
| 362 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 363 | "%s: alloc_skb failed", __func__); |
| 364 | return; |
| 365 | } |
| 366 | |
| 367 | nlh = (struct nlmsghdr *)skb->data; |
| 368 | nlh->nlmsg_pid = 0; /* from kernel */ |
| 369 | nlh->nlmsg_flags = 0; |
| 370 | nlh->nlmsg_seq = 0; |
| 371 | nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| 372 | aniHdr = NLMSG_DATA(nlh); |
| 373 | aniHdr->type = ANI_MSG_OEM_DATA_RSP; |
| 374 | |
| 375 | aniHdr->length = length; |
| 376 | nlh->nlmsg_len = NLMSG_LENGTH((sizeof(tAniMsgHdr) + aniHdr->length)); |
| 377 | oemData = (uint8_t *) ((char *)aniHdr + sizeof(tAniMsgHdr)); |
| 378 | cdf_mem_copy(oemData, oemDataRsp, length); |
| 379 | |
| 380 | skb_put(skb, NLMSG_SPACE((sizeof(tAniMsgHdr) + aniHdr->length))); |
| 381 | |
| 382 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 383 | "%s: sending Oem Data Response of len (%d) to process pid (%d)", |
| 384 | __func__, length, p_hdd_ctx->oem_pid); |
| 385 | |
| 386 | (void)nl_srv_ucast(skb, p_hdd_ctx->oem_pid, MSG_DONTWAIT); |
| 387 | |
| 388 | return; |
| 389 | } |
| 390 | |
| 391 | /** |
| 392 | * oem_process_data_req_msg() - process oem data request |
| 393 | * @oemDataLen: Length to OEM Data buffer |
| 394 | * @oemData: Pointer to OEM Data buffer |
| 395 | * |
| 396 | * This function sends oem message to SME |
| 397 | * |
| 398 | * Return: CDF_STATUS enumeration |
| 399 | */ |
| 400 | static CDF_STATUS oem_process_data_req_msg(int oemDataLen, char *oemData) |
| 401 | { |
| 402 | hdd_adapter_t *pAdapter = NULL; |
| 403 | tOemDataReqConfig oemDataReqConfig; |
| 404 | uint32_t oemDataReqID = 0; |
| 405 | CDF_STATUS status = CDF_STATUS_SUCCESS; |
| 406 | |
| 407 | /* for now, STA interface only */ |
| 408 | pAdapter = hdd_get_adapter(p_hdd_ctx, WLAN_HDD_INFRA_STATION); |
| 409 | if (!pAdapter) { |
| 410 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 411 | "%s: No adapter for STA mode", __func__); |
| 412 | return CDF_STATUS_E_FAILURE; |
| 413 | } |
| 414 | |
| 415 | if (!oemData) { |
| 416 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 417 | "%s: oemData is null", __func__); |
| 418 | return CDF_STATUS_E_FAILURE; |
| 419 | } |
| 420 | |
| 421 | cdf_mem_zero(&oemDataReqConfig, sizeof(tOemDataReqConfig)); |
| 422 | |
| 423 | cdf_mem_copy((&oemDataReqConfig)->oemDataReq, oemData, oemDataLen); |
| 424 | |
| 425 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 426 | "%s: calling sme_oem_data_req", __func__); |
| 427 | |
| 428 | status = sme_oem_data_req(p_hdd_ctx->hHal, |
| 429 | pAdapter->sessionId, |
| 430 | &oemDataReqConfig, |
| 431 | &oemDataReqID, |
| 432 | &hdd_oem_data_req_callback, pAdapter->dev); |
| 433 | return status; |
| 434 | } |
| 435 | |
| 436 | /** |
| 437 | * oem_process_channel_info_req_msg() - process oem channel_info request |
| 438 | * @numOfChannels: number of channels |
| 439 | * @chanList: list of channel information |
| 440 | * |
| 441 | * This function responds with channel info to oem process |
| 442 | * |
| 443 | * Return: 0 for success, non zero for failure |
| 444 | */ |
| 445 | static int oem_process_channel_info_req_msg(int numOfChannels, char *chanList) |
| 446 | { |
| 447 | struct sk_buff *skb; |
| 448 | struct nlmsghdr *nlh; |
| 449 | tAniMsgHdr *aniHdr; |
| 450 | tHddChannelInfo *pHddChanInfo; |
| 451 | tHddChannelInfo hddChanInfo; |
| 452 | uint8_t chanId; |
| 453 | uint32_t reg_info_1; |
| 454 | uint32_t reg_info_2; |
| 455 | CDF_STATUS status = CDF_STATUS_E_FAILURE; |
| 456 | int i; |
| 457 | uint8_t *buf; |
| 458 | |
| 459 | /* OEM message is always to a specific process and cannot be a broadcast */ |
| 460 | if (p_hdd_ctx->oem_pid == 0) { |
| 461 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 462 | "%s: invalid dest pid", __func__); |
| 463 | return -EPERM; |
| 464 | } |
| 465 | |
| 466 | skb = alloc_skb(NLMSG_SPACE(sizeof(tAniMsgHdr) + sizeof(uint8_t) + |
| 467 | numOfChannels * sizeof(tHddChannelInfo)), |
| 468 | GFP_KERNEL); |
| 469 | if (skb == NULL) { |
| 470 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 471 | "%s: alloc_skb failed", __func__); |
| 472 | return -ENOMEM; |
| 473 | } |
| 474 | |
| 475 | nlh = (struct nlmsghdr *)skb->data; |
| 476 | nlh->nlmsg_pid = 0; /* from kernel */ |
| 477 | nlh->nlmsg_flags = 0; |
| 478 | nlh->nlmsg_seq = 0; |
| 479 | nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| 480 | aniHdr = NLMSG_DATA(nlh); |
| 481 | aniHdr->type = ANI_MSG_CHANNEL_INFO_RSP; |
| 482 | |
| 483 | aniHdr->length = |
| 484 | sizeof(uint8_t) + numOfChannels * sizeof(tHddChannelInfo); |
| 485 | nlh->nlmsg_len = NLMSG_LENGTH((sizeof(tAniMsgHdr) + aniHdr->length)); |
| 486 | |
| 487 | /* First byte of message body will have num of channels */ |
| 488 | buf = (char *)((char *)aniHdr + sizeof(tAniMsgHdr)); |
| 489 | *buf++ = numOfChannels; |
| 490 | |
| 491 | /* Next follows channel info struct for each channel id. |
| 492 | * If chan id is wrong or SME returns failure for a channel |
| 493 | * then fill in 0 in channel info for that particular channel |
| 494 | */ |
| 495 | for (i = 0; i < numOfChannels; i++) { |
| 496 | pHddChanInfo = (tHddChannelInfo *) ((char *)buf + |
| 497 | i * |
| 498 | sizeof(tHddChannelInfo)); |
| 499 | |
| 500 | chanId = chanList[i]; |
| 501 | status = sme_get_reg_info(p_hdd_ctx->hHal, chanId, |
| 502 | ®_info_1, ®_info_2); |
| 503 | if (CDF_STATUS_SUCCESS == status) { |
| 504 | /* copy into hdd chan info struct */ |
| 505 | hddChanInfo.chan_id = chanId; |
| 506 | hddChanInfo.reserved0 = 0; |
| 507 | hddChanInfo.mhz = cds_chan_to_freq(chanId); |
| 508 | hddChanInfo.band_center_freq1 = hddChanInfo.mhz; |
| 509 | hddChanInfo.band_center_freq2 = 0; |
| 510 | |
| 511 | hddChanInfo.info = 0; |
| 512 | if (CHANNEL_STATE_DFS == |
| 513 | cds_get_channel_state(chanId)) |
| 514 | WMI_SET_CHANNEL_FLAG(&hddChanInfo, |
| 515 | WMI_CHAN_FLAG_DFS); |
| 516 | hddChanInfo.reg_info_1 = reg_info_1; |
| 517 | hddChanInfo.reg_info_2 = reg_info_2; |
| 518 | } else { |
| 519 | /* channel info is not returned, fill in zeros in channel |
| 520 | * info struct |
| 521 | */ |
| 522 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 523 | "%s: sme_get_reg_info failed for chan (%d), return info 0", |
| 524 | __func__, chanId); |
| 525 | hddChanInfo.chan_id = chanId; |
| 526 | hddChanInfo.reserved0 = 0; |
| 527 | hddChanInfo.mhz = 0; |
| 528 | hddChanInfo.band_center_freq1 = 0; |
| 529 | hddChanInfo.band_center_freq2 = 0; |
| 530 | hddChanInfo.info = 0; |
| 531 | hddChanInfo.reg_info_1 = 0; |
| 532 | hddChanInfo.reg_info_2 = 0; |
| 533 | } |
| 534 | cdf_mem_copy(pHddChanInfo, &hddChanInfo, |
| 535 | sizeof(tHddChannelInfo)); |
| 536 | } |
| 537 | |
| 538 | skb_put(skb, NLMSG_SPACE((sizeof(tAniMsgHdr) + aniHdr->length))); |
| 539 | |
| 540 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 541 | "%s: sending channel info resp for num channels (%d) to pid (%d)", |
| 542 | __func__, numOfChannels, p_hdd_ctx->oem_pid); |
| 543 | |
| 544 | (void)nl_srv_ucast(skb, p_hdd_ctx->oem_pid, MSG_DONTWAIT); |
| 545 | |
| 546 | return 0; |
| 547 | } |
| 548 | |
| 549 | /** |
| 550 | * hdd_send_peer_status_ind_to_oem_app() - |
| 551 | * Function to send peer status to a registered application |
| 552 | * @peerMac: MAC address of peer |
| 553 | * @peerStatus: ePeerConnected or ePeerDisconnected |
| 554 | * @peerTimingMeasCap: 0: RTT/RTT2, 1: RTT3. Default is 0 |
| 555 | * @sessionId: SME session id, i.e. vdev_id |
| 556 | * @chan_info: operating channel information |
| 557 | * |
| 558 | * Return: none |
| 559 | */ |
| 560 | void hdd_send_peer_status_ind_to_oem_app(struct cdf_mac_addr *peerMac, |
| 561 | uint8_t peerStatus, |
| 562 | uint8_t peerTimingMeasCap, |
| 563 | uint8_t sessionId, |
| 564 | tSirSmeChanInfo *chan_info) |
| 565 | { |
| 566 | struct sk_buff *skb; |
| 567 | struct nlmsghdr *nlh; |
| 568 | tAniMsgHdr *aniHdr; |
| 569 | tPeerStatusInfo *pPeerInfo; |
| 570 | |
| 571 | if (!p_hdd_ctx || !p_hdd_ctx->hHal) { |
| 572 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 573 | "%s: Either HDD Ctx is null or Hal Ctx is null", |
| 574 | __func__); |
| 575 | return; |
| 576 | } |
| 577 | |
| 578 | /* check if oem app has registered and pid is valid */ |
| 579 | if ((!p_hdd_ctx->oem_app_registered) || (p_hdd_ctx->oem_pid == 0)) { |
| 580 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO_HIGH, |
| 581 | "%s: OEM app is not registered(%d) or pid is invalid(%d)", |
| 582 | __func__, p_hdd_ctx->oem_app_registered, |
| 583 | p_hdd_ctx->oem_pid); |
| 584 | return; |
| 585 | } |
| 586 | |
| 587 | skb = alloc_skb(NLMSG_SPACE(sizeof(tAniMsgHdr) + |
| 588 | sizeof(tPeerStatusInfo)), |
| 589 | GFP_KERNEL); |
| 590 | if (skb == NULL) { |
| 591 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 592 | "%s: alloc_skb failed", __func__); |
| 593 | return; |
| 594 | } |
| 595 | |
| 596 | nlh = (struct nlmsghdr *)skb->data; |
| 597 | nlh->nlmsg_pid = 0; /* from kernel */ |
| 598 | nlh->nlmsg_flags = 0; |
| 599 | nlh->nlmsg_seq = 0; |
| 600 | nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| 601 | aniHdr = NLMSG_DATA(nlh); |
| 602 | aniHdr->type = ANI_MSG_PEER_STATUS_IND; |
| 603 | |
| 604 | aniHdr->length = sizeof(tPeerStatusInfo); |
| 605 | nlh->nlmsg_len = NLMSG_LENGTH((sizeof(tAniMsgHdr) + aniHdr->length)); |
| 606 | |
| 607 | pPeerInfo = (tPeerStatusInfo *) ((char *)aniHdr + sizeof(tAniMsgHdr)); |
| 608 | |
| 609 | cdf_mem_copy(pPeerInfo->peer_mac_addr, peerMac->bytes, |
| 610 | sizeof(peerMac->bytes)); |
| 611 | pPeerInfo->peer_status = peerStatus; |
| 612 | pPeerInfo->vdev_id = sessionId; |
| 613 | pPeerInfo->peer_capability = peerTimingMeasCap; |
| 614 | pPeerInfo->reserved0 = 0; |
| 615 | |
| 616 | if (chan_info) { |
| 617 | pPeerInfo->peer_chan_info.chan_id = chan_info->chan_id; |
| 618 | pPeerInfo->peer_chan_info.reserved0 = 0; |
| 619 | pPeerInfo->peer_chan_info.mhz = chan_info->mhz; |
| 620 | pPeerInfo->peer_chan_info.band_center_freq1 = |
| 621 | chan_info->band_center_freq1; |
| 622 | pPeerInfo->peer_chan_info.band_center_freq2 = |
| 623 | chan_info->band_center_freq2; |
| 624 | pPeerInfo->peer_chan_info.info = chan_info->info; |
| 625 | pPeerInfo->peer_chan_info.reg_info_1 = chan_info->reg_info_1; |
| 626 | pPeerInfo->peer_chan_info.reg_info_2 = chan_info->reg_info_2; |
| 627 | } else { |
| 628 | pPeerInfo->peer_chan_info.chan_id = 0; |
| 629 | pPeerInfo->peer_chan_info.reserved0 = 0; |
| 630 | pPeerInfo->peer_chan_info.mhz = 0; |
| 631 | pPeerInfo->peer_chan_info.band_center_freq1 = 0; |
| 632 | pPeerInfo->peer_chan_info.band_center_freq2 = 0; |
| 633 | pPeerInfo->peer_chan_info.info = 0; |
| 634 | pPeerInfo->peer_chan_info.reg_info_1 = 0; |
| 635 | pPeerInfo->peer_chan_info.reg_info_2 = 0; |
| 636 | } |
| 637 | skb_put(skb, NLMSG_SPACE((sizeof(tAniMsgHdr) + aniHdr->length))); |
| 638 | |
| 639 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO_HIGH, |
| 640 | "%s: sending peer " MAC_ADDRESS_STR |
| 641 | " status(%d), peerTimingMeasCap(%d), vdevId(%d), chanId(%d)" |
| 642 | " to oem app pid(%d), center freq 1 (%d), center freq 2 (%d)," |
| 643 | " info (0x%x), frequency (%d),reg info 1 (0x%x)," |
| 644 | " reg info 2 (0x%x)", __func__, |
| 645 | MAC_ADDR_ARRAY(peerMac->bytes), |
| 646 | peerStatus, peerTimingMeasCap, |
| 647 | sessionId, pPeerInfo->peer_chan_info.chan_id, |
| 648 | p_hdd_ctx->oem_pid, |
| 649 | pPeerInfo->peer_chan_info.band_center_freq1, |
| 650 | pPeerInfo->peer_chan_info.band_center_freq2, |
| 651 | pPeerInfo->peer_chan_info.info, |
| 652 | pPeerInfo->peer_chan_info.mhz, |
| 653 | pPeerInfo->peer_chan_info.reg_info_1, |
| 654 | pPeerInfo->peer_chan_info.reg_info_2); |
| 655 | |
| 656 | (void)nl_srv_ucast(skb, p_hdd_ctx->oem_pid, MSG_DONTWAIT); |
| 657 | |
| 658 | return; |
| 659 | } |
| 660 | |
| 661 | /* |
| 662 | * Callback function invoked by Netlink service for all netlink |
| 663 | * messages (from user space) addressed to WLAN_NL_MSG_OEM |
| 664 | */ |
| 665 | |
| 666 | /** |
| 667 | * oem_msg_callback() - callback invoked by netlink service |
| 668 | * @skb: skb with netlink message |
| 669 | * |
| 670 | * This function gets invoked by netlink service when a message |
| 671 | * is received from user space addressed to WLAN_NL_MSG_OEM |
| 672 | * |
| 673 | * Return: zero on success |
| 674 | * On error, error number will be returned. |
| 675 | */ |
| 676 | static int oem_msg_callback(struct sk_buff *skb) |
| 677 | { |
| 678 | struct nlmsghdr *nlh; |
| 679 | tAniMsgHdr *msg_hdr; |
| 680 | int ret; |
| 681 | char *sign_str = NULL; |
| 682 | nlh = (struct nlmsghdr *)skb->data; |
| 683 | |
| 684 | if (!nlh) { |
| 685 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 686 | "%s: Netlink header null", __func__); |
| 687 | return -EPERM; |
| 688 | } |
| 689 | |
| 690 | ret = wlan_hdd_validate_context(p_hdd_ctx); |
| 691 | if (0 != ret) { |
| 692 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 693 | FL("HDD context is not valid")); |
| 694 | return ret; |
| 695 | } |
| 696 | |
| 697 | msg_hdr = NLMSG_DATA(nlh); |
| 698 | |
| 699 | if (!msg_hdr) { |
| 700 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 701 | "%s: Message header null", __func__); |
| 702 | send_oem_err_rsp_nlink_msg(nlh->nlmsg_pid, |
| 703 | OEM_ERR_NULL_MESSAGE_HEADER); |
| 704 | return -EPERM; |
| 705 | } |
| 706 | |
| 707 | if (nlh->nlmsg_len < |
| 708 | NLMSG_LENGTH(sizeof(tAniMsgHdr) + msg_hdr->length)) { |
| 709 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 710 | "%s: Invalid nl msg len, nlh->nlmsg_len (%d), msg_hdr->len (%d)", |
| 711 | __func__, nlh->nlmsg_len, msg_hdr->length); |
| 712 | send_oem_err_rsp_nlink_msg(nlh->nlmsg_pid, |
| 713 | OEM_ERR_INVALID_MESSAGE_LENGTH); |
| 714 | return -EPERM; |
| 715 | } |
| 716 | |
| 717 | switch (msg_hdr->type) { |
| 718 | case ANI_MSG_APP_REG_REQ: |
| 719 | /* Registration request is only allowed for Qualcomm Application */ |
| 720 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 721 | "%s: Received App Req Req from App process pid(%d), len(%d)", |
| 722 | __func__, nlh->nlmsg_pid, msg_hdr->length); |
| 723 | |
| 724 | sign_str = (char *)((char *)msg_hdr + sizeof(tAniMsgHdr)); |
| 725 | if ((OEM_APP_SIGNATURE_LEN == msg_hdr->length) && |
| 726 | (0 == strncmp(sign_str, OEM_APP_SIGNATURE_STR, |
| 727 | OEM_APP_SIGNATURE_LEN))) { |
| 728 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 729 | "%s: Valid App Req Req from oem app process pid(%d)", |
| 730 | __func__, nlh->nlmsg_pid); |
| 731 | |
| 732 | p_hdd_ctx->oem_app_registered = true; |
| 733 | p_hdd_ctx->oem_pid = nlh->nlmsg_pid; |
| 734 | send_oem_reg_rsp_nlink_msg(); |
| 735 | } else { |
| 736 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 737 | "%s: Invalid signature in App Reg Request from pid(%d)", |
| 738 | __func__, nlh->nlmsg_pid); |
| 739 | send_oem_err_rsp_nlink_msg(nlh->nlmsg_pid, |
| 740 | OEM_ERR_INVALID_SIGNATURE); |
| 741 | return -EPERM; |
| 742 | } |
| 743 | break; |
| 744 | |
| 745 | case ANI_MSG_OEM_DATA_REQ: |
| 746 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 747 | "%s: Received Oem Data Request length(%d) from pid: %d", |
| 748 | __func__, msg_hdr->length, nlh->nlmsg_pid); |
| 749 | |
| 750 | if ((!p_hdd_ctx->oem_app_registered) || |
| 751 | (nlh->nlmsg_pid != p_hdd_ctx->oem_pid)) { |
| 752 | /* either oem app is not registered yet or pid is different */ |
| 753 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 754 | "%s: OEM DataReq: app not registered(%d) or incorrect pid(%d)", |
| 755 | __func__, p_hdd_ctx->oem_app_registered, |
| 756 | nlh->nlmsg_pid); |
| 757 | send_oem_err_rsp_nlink_msg(nlh->nlmsg_pid, |
| 758 | OEM_ERR_APP_NOT_REGISTERED); |
| 759 | return -EPERM; |
| 760 | } |
| 761 | |
| 762 | if ((!msg_hdr->length) || (OEM_DATA_REQ_SIZE < msg_hdr->length)) { |
| 763 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 764 | "%s: Invalid length (%d) in Oem Data Request", |
| 765 | __func__, msg_hdr->length); |
| 766 | send_oem_err_rsp_nlink_msg(nlh->nlmsg_pid, |
| 767 | OEM_ERR_INVALID_MESSAGE_LENGTH); |
| 768 | return -EPERM; |
| 769 | } |
| 770 | oem_process_data_req_msg(msg_hdr->length, |
| 771 | (char *)((char *)msg_hdr + |
| 772 | sizeof(tAniMsgHdr))); |
| 773 | break; |
| 774 | |
| 775 | case ANI_MSG_CHANNEL_INFO_REQ: |
| 776 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| 777 | "%s: Received channel info request, num channel(%d) from pid: %d", |
| 778 | __func__, msg_hdr->length, nlh->nlmsg_pid); |
| 779 | |
| 780 | if ((!p_hdd_ctx->oem_app_registered) || |
| 781 | (nlh->nlmsg_pid != p_hdd_ctx->oem_pid)) { |
| 782 | /* either oem app is not registered yet or pid is different */ |
| 783 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 784 | "%s: Chan InfoReq: app not registered(%d) or incorrect pid(%d)", |
| 785 | __func__, p_hdd_ctx->oem_app_registered, |
| 786 | nlh->nlmsg_pid); |
| 787 | send_oem_err_rsp_nlink_msg(nlh->nlmsg_pid, |
| 788 | OEM_ERR_APP_NOT_REGISTERED); |
| 789 | return -EPERM; |
| 790 | } |
| 791 | |
| 792 | /* message length contains list of channel ids */ |
| 793 | if ((!msg_hdr->length) || |
| 794 | (WNI_CFG_VALID_CHANNEL_LIST_LEN < msg_hdr->length)) { |
| 795 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 796 | "%s: Invalid length (%d) in channel info request", |
| 797 | __func__, msg_hdr->length); |
| 798 | send_oem_err_rsp_nlink_msg(nlh->nlmsg_pid, |
| 799 | OEM_ERR_INVALID_MESSAGE_LENGTH); |
| 800 | return -EPERM; |
| 801 | } |
| 802 | oem_process_channel_info_req_msg(msg_hdr->length, |
| 803 | (char *)((char *)msg_hdr + |
| 804 | sizeof(tAniMsgHdr))); |
| 805 | break; |
| 806 | |
| 807 | default: |
| 808 | CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_ERROR, |
| 809 | "%s: Received Invalid message type (%d), length (%d)", |
| 810 | __func__, msg_hdr->type, msg_hdr->length); |
| 811 | send_oem_err_rsp_nlink_msg(nlh->nlmsg_pid, |
| 812 | OEM_ERR_INVALID_MESSAGE_TYPE); |
| 813 | return -EPERM; |
| 814 | } |
| 815 | return 0; |
| 816 | } |
| 817 | |
| 818 | static int __oem_msg_callback(struct sk_buff *skb) |
| 819 | { |
| 820 | int ret; |
| 821 | |
| 822 | cds_ssr_protect(__func__); |
| 823 | ret = oem_msg_callback(skb); |
| 824 | cds_ssr_unprotect(__func__); |
| 825 | |
| 826 | return ret; |
| 827 | } |
| 828 | |
| 829 | /** |
| 830 | * oem_activate_service() - Activate oem message handler |
| 831 | * @hdd_ctx: pointer to global HDD context |
| 832 | * |
| 833 | * This function registers a handler to receive netlink message from |
| 834 | * an OEM application process. |
| 835 | * |
| 836 | * Return: zero on success |
| 837 | * On error, error number will be returned. |
| 838 | */ |
| 839 | int oem_activate_service(struct hdd_context_s *hdd_ctx) |
| 840 | { |
| 841 | p_hdd_ctx = hdd_ctx; |
| 842 | |
| 843 | /* Register the msg handler for msgs addressed to WLAN_NL_MSG_OEM */ |
| 844 | return nl_srv_register(WLAN_NL_MSG_OEM, __oem_msg_callback); |
| 845 | } |
| 846 | |
| 847 | #endif |