| /* |
| * Copyright (c) 2012-2017 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| #ifdef FEATURE_OEM_DATA_SUPPORT |
| |
| /** |
| * DOC: wlan_hdd_oemdata.c |
| * |
| * Support for generic OEM Data Request handling |
| * |
| */ |
| |
| #include <linux/version.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/wireless.h> |
| #include <wlan_hdd_includes.h> |
| #include <net/arp.h> |
| #include "qwlan_version.h" |
| #include "cds_utils.h" |
| #include "wma.h" |
| #include "sme_api.h" |
| #include "wlan_nlink_srv.h" |
| |
| #ifdef CNSS_GENL |
| #include <net/cnss_nl.h> |
| #endif |
| |
| static struct hdd_context_s *p_hdd_ctx; |
| |
| /** |
| * populate_oem_data_cap() - populate oem capabilities |
| * @adapter: device adapter |
| * @data_cap: pointer to populate the capabilities |
| * |
| * Return: error code |
| */ |
| static int populate_oem_data_cap(hdd_adapter_t *adapter, |
| struct oem_data_cap *data_cap) |
| { |
| QDF_STATUS status; |
| struct hdd_config *config; |
| uint32_t num_chan; |
| uint8_t *chan_list; |
| hdd_context_t *hdd_ctx = adapter->pHddCtx; |
| |
| config = hdd_ctx->config; |
| if (!config) { |
| hdd_err("HDD configuration is null"); |
| return -EINVAL; |
| } |
| chan_list = qdf_mem_malloc(sizeof(uint8_t) * OEM_CAP_MAX_NUM_CHANNELS); |
| if (NULL == chan_list) { |
| hdd_err("Memory allocation failed"); |
| return -ENOMEM; |
| } |
| |
| strlcpy(data_cap->oem_target_signature, OEM_TARGET_SIGNATURE, |
| OEM_TARGET_SIGNATURE_LEN); |
| data_cap->oem_target_type = hdd_ctx->target_type; |
| data_cap->oem_fw_version = hdd_ctx->target_fw_version; |
| data_cap->driver_version.major = QWLAN_VERSION_MAJOR; |
| data_cap->driver_version.minor = QWLAN_VERSION_MINOR; |
| data_cap->driver_version.patch = QWLAN_VERSION_PATCH; |
| data_cap->driver_version.build = QWLAN_VERSION_BUILD; |
| data_cap->allowed_dwell_time_min = config->nNeighborScanMinChanTime; |
| data_cap->allowed_dwell_time_max = config->nNeighborScanMaxChanTime; |
| data_cap->curr_dwell_time_min = |
| sme_get_neighbor_scan_min_chan_time(hdd_ctx->hHal, |
| adapter->sessionId); |
| data_cap->curr_dwell_time_max = |
| sme_get_neighbor_scan_max_chan_time(hdd_ctx->hHal, |
| adapter->sessionId); |
| data_cap->supported_bands = config->nBandCapability; |
| |
| /* request for max num of channels */ |
| num_chan = OEM_CAP_MAX_NUM_CHANNELS; |
| status = sme_get_cfg_valid_channels( |
| &chan_list[0], &num_chan); |
| if (QDF_STATUS_SUCCESS != status) { |
| hdd_err("failed to get valid channel list, status: %d", status); |
| qdf_mem_free(chan_list); |
| return -EINVAL; |
| } |
| |
| /* make sure num channels is not more than chan list array */ |
| if (num_chan > OEM_CAP_MAX_NUM_CHANNELS) { |
| hdd_err("Num of channels-%d > length-%d of chan_list", |
| num_chan, OEM_CAP_MAX_NUM_CHANNELS); |
| qdf_mem_free(chan_list); |
| return -ENOMEM; |
| } |
| |
| data_cap->num_channels = num_chan; |
| qdf_mem_copy(data_cap->channel_list, chan_list, |
| sizeof(uint8_t) * num_chan); |
| |
| qdf_mem_free(chan_list); |
| return 0; |
| } |
| |
| /** |
| * iw_get_oem_data_cap() - Get OEM Data Capabilities |
| * @dev: net device upon which the request was received |
| * @info: ioctl request information |
| * @wrqu: ioctl request data |
| * @extra: ioctl data payload |
| * |
| * This function gets the capability information for OEM Data Request |
| * and Response. |
| * |
| * Return: 0 for success, negative errno value on failure |
| */ |
| int iw_get_oem_data_cap(struct net_device *dev, |
| struct iw_request_info *info, |
| union iwreq_data *wrqu, char *extra) |
| { |
| int status; |
| struct oem_data_cap oemDataCap = { {0} }; |
| struct oem_data_cap *pHddOemDataCap; |
| hdd_adapter_t *pAdapter = (netdev_priv(dev)); |
| hdd_context_t *pHddContext; |
| int ret; |
| |
| ENTER(); |
| |
| pHddContext = WLAN_HDD_GET_CTX(pAdapter); |
| ret = wlan_hdd_validate_context(pHddContext); |
| if (0 != ret) |
| return ret; |
| |
| status = populate_oem_data_cap(pAdapter, &oemDataCap); |
| if (0 != status) { |
| hdd_err("Failed to populate oem data capabilities"); |
| return status; |
| } |
| |
| pHddOemDataCap = (struct oem_data_cap *) (extra); |
| *pHddOemDataCap = oemDataCap; |
| |
| EXIT(); |
| return 0; |
| } |
| |
| /** |
| * send_oem_reg_rsp_nlink_msg() - send oem registration response |
| * |
| * This function sends oem message to registered application process |
| * |
| * Return: none |
| */ |
| static void send_oem_reg_rsp_nlink_msg(void) |
| { |
| struct sk_buff *skb; |
| struct nlmsghdr *nlh; |
| tAniMsgHdr *aniHdr; |
| uint8_t *buf; |
| uint8_t *numInterfaces; |
| uint8_t *deviceMode; |
| uint8_t *vdevId; |
| hdd_adapter_list_node_t *pAdapterNode = NULL; |
| hdd_adapter_list_node_t *pNext = NULL; |
| hdd_adapter_t *pAdapter = NULL; |
| QDF_STATUS status = 0; |
| |
| /* OEM msg is always to a specific process & cannot be a broadcast */ |
| if (p_hdd_ctx->oem_pid == 0) { |
| hdd_err("invalid dest pid"); |
| return; |
| } |
| |
| skb = alloc_skb(NLMSG_SPACE(WLAN_NL_MAX_PAYLOAD), GFP_KERNEL); |
| if (skb == NULL) |
| return; |
| |
| nlh = (struct nlmsghdr *)skb->data; |
| nlh->nlmsg_pid = 0; /* from kernel */ |
| nlh->nlmsg_flags = 0; |
| nlh->nlmsg_seq = 0; |
| nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| aniHdr = NLMSG_DATA(nlh); |
| aniHdr->type = ANI_MSG_APP_REG_RSP; |
| |
| /* Fill message body: |
| * First byte will be number of interfaces, followed by |
| * two bytes for each interfaces |
| * - one byte for device mode |
| * - one byte for vdev id |
| */ |
| buf = (char *)((char *)aniHdr + sizeof(tAniMsgHdr)); |
| numInterfaces = buf++; |
| *numInterfaces = 0; |
| |
| /* Iterate through each adapter and fill device mode and vdev id */ |
| status = hdd_get_front_adapter(p_hdd_ctx, &pAdapterNode); |
| while ((QDF_STATUS_SUCCESS == status) && pAdapterNode) { |
| pAdapter = pAdapterNode->pAdapter; |
| if (pAdapter) { |
| deviceMode = buf++; |
| vdevId = buf++; |
| *deviceMode = pAdapter->device_mode; |
| *vdevId = pAdapter->sessionId; |
| (*numInterfaces)++; |
| hdd_debug("numInterfaces: %d, deviceMode: %d, vdevId: %d", |
| *numInterfaces, *deviceMode, |
| *vdevId); |
| } |
| status = hdd_get_next_adapter(p_hdd_ctx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| |
| aniHdr->length = |
| sizeof(uint8_t) + (*numInterfaces) * 2 * sizeof(uint8_t); |
| nlh->nlmsg_len = NLMSG_LENGTH((sizeof(tAniMsgHdr) + aniHdr->length)); |
| |
| skb_put(skb, NLMSG_SPACE((sizeof(tAniMsgHdr) + aniHdr->length))); |
| |
| hdd_debug("sending App Reg Response length: %d to pid: %d", |
| aniHdr->length, p_hdd_ctx->oem_pid); |
| |
| (void)nl_srv_ucast_oem(skb, p_hdd_ctx->oem_pid, MSG_DONTWAIT); |
| } |
| |
| /** |
| * send_oem_err_rsp_nlink_msg() - send oem error response |
| * @app_pid: PID of oem application process |
| * @error_code: response error code |
| * |
| * This function sends error response to oem app |
| * |
| * Return: none |
| */ |
| static void send_oem_err_rsp_nlink_msg(int32_t app_pid, uint8_t error_code) |
| { |
| struct sk_buff *skb; |
| struct nlmsghdr *nlh; |
| tAniMsgHdr *aniHdr; |
| uint8_t *buf; |
| |
| skb = alloc_skb(NLMSG_SPACE(WLAN_NL_MAX_PAYLOAD), GFP_KERNEL); |
| if (skb == NULL) |
| return; |
| |
| nlh = (struct nlmsghdr *)skb->data; |
| nlh->nlmsg_pid = 0; /* from kernel */ |
| nlh->nlmsg_flags = 0; |
| nlh->nlmsg_seq = 0; |
| nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| aniHdr = NLMSG_DATA(nlh); |
| aniHdr->type = ANI_MSG_OEM_ERROR; |
| aniHdr->length = sizeof(uint8_t); |
| nlh->nlmsg_len = NLMSG_LENGTH(sizeof(tAniMsgHdr) + aniHdr->length); |
| |
| /* message body will contain one byte of error code */ |
| buf = (char *)((char *)aniHdr + sizeof(tAniMsgHdr)); |
| *buf = error_code; |
| |
| skb_put(skb, NLMSG_SPACE(sizeof(tAniMsgHdr) + aniHdr->length)); |
| |
| hdd_debug("sending oem error response to pid: %d", app_pid); |
| |
| (void)nl_srv_ucast_oem(skb, app_pid, MSG_DONTWAIT); |
| } |
| |
| /** |
| * hdd_send_oem_data_rsp_msg() - send oem data response |
| * @oem_data_rsp: the actual OEM Data Response message |
| * |
| * This function sends an OEM Data Response message to a registered |
| * application process over the netlink socket. |
| * |
| * Return: 0 for success, non zero for failure |
| */ |
| void hdd_send_oem_data_rsp_msg(struct oem_data_rsp *oem_data_rsp) |
| { |
| struct sk_buff *skb; |
| struct nlmsghdr *nlh; |
| tAniMsgHdr *ani_hdr; |
| uint8_t *oem_data; |
| |
| /* |
| * OEM message is always to a specific process and cannot be a broadcast |
| */ |
| if (p_hdd_ctx->oem_pid == 0) { |
| hdd_err("invalid dest pid"); |
| return; |
| } |
| |
| if (oem_data_rsp->rsp_len > OEM_DATA_RSP_SIZE) { |
| hdd_err("invalid length of Oem Data response"); |
| return; |
| } |
| |
| skb = alloc_skb(NLMSG_SPACE(sizeof(tAniMsgHdr) + OEM_DATA_RSP_SIZE), |
| GFP_KERNEL); |
| if (skb == NULL) |
| return; |
| |
| nlh = (struct nlmsghdr *)skb->data; |
| nlh->nlmsg_pid = 0; /* from kernel */ |
| nlh->nlmsg_flags = 0; |
| nlh->nlmsg_seq = 0; |
| nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| ani_hdr = NLMSG_DATA(nlh); |
| ani_hdr->type = ANI_MSG_OEM_DATA_RSP; |
| |
| ani_hdr->length = oem_data_rsp->rsp_len; |
| nlh->nlmsg_len = NLMSG_LENGTH((sizeof(tAniMsgHdr) + ani_hdr->length)); |
| oem_data = (uint8_t *) ((char *)ani_hdr + sizeof(tAniMsgHdr)); |
| qdf_mem_copy(oem_data, oem_data_rsp->data, oem_data_rsp->rsp_len); |
| |
| skb_put(skb, NLMSG_SPACE((sizeof(tAniMsgHdr) + ani_hdr->length))); |
| |
| hdd_debug("sending Oem Data Response of len : %d to pid: %d", |
| oem_data_rsp->rsp_len, p_hdd_ctx->oem_pid); |
| |
| (void)nl_srv_ucast_oem(skb, p_hdd_ctx->oem_pid, MSG_DONTWAIT); |
| } |
| |
| /** |
| * oem_process_data_req_msg() - process oem data request |
| * @oem_data_len: Length to OEM Data buffer |
| * @oem_data: Pointer to OEM Data buffer |
| * |
| * This function sends oem message to SME |
| * |
| * Return: QDF_STATUS enumeration |
| */ |
| static QDF_STATUS oem_process_data_req_msg(int oem_data_len, char *oem_data) |
| { |
| hdd_adapter_t *adapter = NULL; |
| struct oem_data_req oem_data_req; |
| QDF_STATUS status = QDF_STATUS_SUCCESS; |
| |
| /* for now, STA interface only */ |
| adapter = hdd_get_adapter(p_hdd_ctx, QDF_STA_MODE); |
| if (!adapter) { |
| hdd_err("No adapter for STA mode"); |
| return QDF_STATUS_E_FAILURE; |
| } |
| |
| if (!oem_data) { |
| hdd_err("oem_data is null"); |
| return QDF_STATUS_E_FAILURE; |
| } |
| |
| qdf_mem_zero(&oem_data_req, sizeof(oem_data_req)); |
| |
| oem_data_req.data = qdf_mem_malloc(oem_data_len); |
| if (!oem_data_req.data) { |
| hdd_err("malloc failed for data req buffer"); |
| return QDF_STATUS_E_NOMEM; |
| } |
| |
| oem_data_req.data_len = oem_data_len; |
| qdf_mem_copy(oem_data_req.data, oem_data, oem_data_len); |
| |
| status = sme_oem_data_req(p_hdd_ctx->hHal, &oem_data_req); |
| |
| qdf_mem_free(oem_data_req.data); |
| oem_data_req.data = NULL; |
| |
| return status; |
| } |
| |
| /** |
| * update_channel_bw_info() - set bandwidth info for the chan |
| * @hdd_ctx: hdd context |
| * @chan: channel for which info are required |
| * @chan_info: struct where the bandwidth info is filled |
| * |
| * This function find the maximum bandwidth allowed, secondary |
| * channel offset and center freq for the channel as per regulatory |
| * domain and using these info calculate the phy mode for the |
| * channel. |
| * |
| * Return: void |
| */ |
| void hdd_update_channel_bw_info(hdd_context_t *hdd_ctx, |
| uint16_t chan, void *chan_info) |
| { |
| struct ch_params ch_params = {0}; |
| uint16_t sec_ch_2g = 0; |
| WLAN_PHY_MODE phy_mode; |
| uint32_t wni_dot11_mode; |
| tHddChannelInfo *hdd_chan_info = chan_info; |
| |
| wni_dot11_mode = sme_get_wni_dot11_mode(hdd_ctx->hHal); |
| |
| /* Passing CH_WIDTH_MAX will give the max bandwidth supported */ |
| ch_params.ch_width = CH_WIDTH_MAX; |
| |
| wlan_reg_set_channel_params(hdd_ctx->hdd_pdev, chan, |
| sec_ch_2g, &ch_params); |
| if (ch_params.center_freq_seg0) |
| hdd_chan_info->band_center_freq1 = |
| cds_chan_to_freq(ch_params.center_freq_seg0); |
| |
| if (ch_params.ch_width < CH_WIDTH_INVALID) |
| phy_mode = wma_chan_phy_mode(chan, |
| ch_params.ch_width, wni_dot11_mode); |
| else |
| /* |
| * If channel width is CH_WIDTH_INVALID, It mean channel is |
| * invalid and should not have been received in channel info |
| * req. Set invalid phymode in this case. |
| */ |
| phy_mode = MODE_UNKNOWN; |
| |
| hdd_info("chan %d dot11_mode %d ch_width %d sec offset %d freq_seg0 %d phy_mode %d", |
| chan, wni_dot11_mode, ch_params.ch_width, |
| ch_params.sec_ch_offset, |
| hdd_chan_info->band_center_freq1, phy_mode); |
| |
| WMI_SET_CHANNEL_MODE(hdd_chan_info, phy_mode); |
| } |
| |
| /** |
| * oem_process_channel_info_req_msg() - process oem channel_info request |
| * @numOfChannels: number of channels |
| * @chanList: list of channel information |
| * |
| * This function responds with channel info to oem process |
| * |
| * Return: 0 for success, non zero for failure |
| */ |
| static int oem_process_channel_info_req_msg(int numOfChannels, char *chanList) |
| { |
| struct sk_buff *skb; |
| struct nlmsghdr *nlh; |
| tAniMsgHdr *aniHdr; |
| struct hdd_channel_info *pHddChanInfo; |
| struct hdd_channel_info hddChanInfo; |
| uint8_t chanId; |
| uint32_t reg_info_1; |
| uint32_t reg_info_2; |
| QDF_STATUS status = QDF_STATUS_E_FAILURE; |
| int i; |
| uint8_t *buf; |
| |
| /* OEM msg is always to a specific process and cannot be a broadcast */ |
| if (p_hdd_ctx->oem_pid == 0) { |
| hdd_err("invalid dest pid"); |
| return -EPERM; |
| } |
| |
| skb = alloc_skb(NLMSG_SPACE(sizeof(tAniMsgHdr) + sizeof(uint8_t) + |
| numOfChannels * sizeof(*pHddChanInfo)), |
| GFP_KERNEL); |
| if (skb == NULL) |
| return -ENOMEM; |
| |
| nlh = (struct nlmsghdr *)skb->data; |
| nlh->nlmsg_pid = 0; /* from kernel */ |
| nlh->nlmsg_flags = 0; |
| nlh->nlmsg_seq = 0; |
| nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| aniHdr = NLMSG_DATA(nlh); |
| aniHdr->type = ANI_MSG_CHANNEL_INFO_RSP; |
| |
| aniHdr->length = |
| sizeof(uint8_t) + numOfChannels * sizeof(*pHddChanInfo); |
| nlh->nlmsg_len = NLMSG_LENGTH((sizeof(tAniMsgHdr) + aniHdr->length)); |
| |
| /* First byte of message body will have num of channels */ |
| buf = (char *)((char *)aniHdr + sizeof(tAniMsgHdr)); |
| *buf++ = numOfChannels; |
| |
| /* Next follows channel info struct for each channel id. |
| * If chan id is wrong or SME returns failure for a channel |
| * then fill in 0 in channel info for that particular channel |
| */ |
| for (i = 0; i < numOfChannels; i++) { |
| pHddChanInfo = (struct hdd_channel_info *) ((char *)buf + |
| i * |
| sizeof(*pHddChanInfo)); |
| |
| chanId = chanList[i]; |
| status = sme_get_reg_info(p_hdd_ctx->hHal, chanId, |
| ®_info_1, ®_info_2); |
| if (QDF_STATUS_SUCCESS == status) { |
| /* copy into hdd chan info struct */ |
| hddChanInfo.chan_id = chanId; |
| hddChanInfo.reserved0 = 0; |
| hddChanInfo.mhz = cds_chan_to_freq(chanId); |
| hddChanInfo.band_center_freq1 = hddChanInfo.mhz; |
| hddChanInfo.band_center_freq2 = 0; |
| |
| hddChanInfo.info = 0; |
| if (CHANNEL_STATE_DFS == |
| wlan_reg_get_channel_state(p_hdd_ctx->hdd_pdev, |
| chanId)) |
| WMI_SET_CHANNEL_FLAG(&hddChanInfo, |
| WMI_CHAN_FLAG_DFS); |
| |
| hdd_update_channel_bw_info(p_hdd_ctx, |
| chanId, &hddChanInfo); |
| hddChanInfo.reg_info_1 = reg_info_1; |
| hddChanInfo.reg_info_2 = reg_info_2; |
| } else { |
| /* channel info is not returned, fill in zeros in |
| * channel info struct |
| */ |
| hdd_debug("sme_get_reg_info failed for chan: %d, fill 0s", |
| chanId); |
| hddChanInfo.chan_id = chanId; |
| hddChanInfo.reserved0 = 0; |
| hddChanInfo.mhz = 0; |
| hddChanInfo.band_center_freq1 = 0; |
| hddChanInfo.band_center_freq2 = 0; |
| hddChanInfo.info = 0; |
| hddChanInfo.reg_info_1 = 0; |
| hddChanInfo.reg_info_2 = 0; |
| } |
| qdf_mem_copy(pHddChanInfo, &hddChanInfo, |
| sizeof(*pHddChanInfo)); |
| } |
| |
| skb_put(skb, NLMSG_SPACE((sizeof(tAniMsgHdr) + aniHdr->length))); |
| |
| hdd_debug("sending channel info resp for num channels (%d) to pid (%d)", |
| numOfChannels, p_hdd_ctx->oem_pid); |
| |
| (void)nl_srv_ucast_oem(skb, p_hdd_ctx->oem_pid, MSG_DONTWAIT); |
| |
| return 0; |
| } |
| |
| /** |
| * oem_process_set_cap_req_msg() - process oem set capability request |
| * @oem_cap_len: Length of OEM capability |
| * @oem_cap: Pointer to OEM capability buffer |
| * @app_pid: process ID, to which rsp message is to be sent |
| * |
| * This function sends oem message to SME |
| * |
| * Return: error code |
| */ |
| static int oem_process_set_cap_req_msg(int oem_cap_len, |
| char *oem_cap, int32_t app_pid) |
| { |
| QDF_STATUS status; |
| int error_code; |
| struct sk_buff *skb; |
| struct nlmsghdr *nlh; |
| tAniMsgHdr *ani_hdr; |
| uint8_t *buf; |
| |
| if (!oem_cap) { |
| hdd_err("oem_cap is null"); |
| return -EINVAL; |
| } |
| |
| status = sme_oem_update_capability(p_hdd_ctx->hHal, |
| (struct sme_oem_capability *)oem_cap); |
| if (!QDF_IS_STATUS_SUCCESS(status)) |
| hdd_err("error updating rm capability, status: %d", status); |
| error_code = qdf_status_to_os_return(status); |
| |
| skb = alloc_skb(NLMSG_SPACE(WLAN_NL_MAX_PAYLOAD), GFP_KERNEL); |
| if (skb == NULL) |
| return -ENOMEM; |
| |
| nlh = (struct nlmsghdr *)skb->data; |
| nlh->nlmsg_pid = 0; /* from kernel */ |
| nlh->nlmsg_flags = 0; |
| nlh->nlmsg_seq = 0; |
| nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| ani_hdr = NLMSG_DATA(nlh); |
| ani_hdr->type = ANI_MSG_SET_OEM_CAP_RSP; |
| /* 64 bit alignment */ |
| ani_hdr->length = sizeof(error_code); |
| nlh->nlmsg_len = NLMSG_LENGTH(sizeof(tAniMsgHdr) + ani_hdr->length); |
| |
| /* message body will contain only status code */ |
| buf = (char *)((char *)ani_hdr + sizeof(tAniMsgHdr)); |
| qdf_mem_copy(buf, &error_code, ani_hdr->length); |
| |
| skb_put(skb, NLMSG_SPACE(sizeof(tAniMsgHdr) + ani_hdr->length)); |
| |
| hdd_debug("sending oem response to pid %d", app_pid); |
| |
| (void)nl_srv_ucast_oem(skb, app_pid, MSG_DONTWAIT); |
| |
| return error_code; |
| } |
| |
| /** |
| * oem_process_get_cap_req_msg() - process oem get capability request |
| * |
| * This function process the get capability request from OEM and responds |
| * with the capability. |
| * |
| * Return: error code |
| */ |
| static int oem_process_get_cap_req_msg(void) |
| { |
| int error_code; |
| struct oem_get_capability_rsp *cap_rsp; |
| struct oem_data_cap data_cap = { {0} }; |
| struct sme_oem_capability oem_cap; |
| hdd_adapter_t *adapter; |
| struct sk_buff *skb; |
| struct nlmsghdr *nlh; |
| tAniMsgHdr *ani_hdr; |
| uint8_t *buf; |
| |
| /* for now, STA interface only */ |
| adapter = hdd_get_adapter(p_hdd_ctx, QDF_STA_MODE); |
| if (!adapter) { |
| hdd_err("No adapter for STA mode"); |
| return -EINVAL; |
| } |
| |
| error_code = populate_oem_data_cap(adapter, &data_cap); |
| if (0 != error_code) |
| return error_code; |
| |
| skb = alloc_skb(NLMSG_SPACE(sizeof(tAniMsgHdr) + sizeof(*cap_rsp)), |
| GFP_KERNEL); |
| if (skb == NULL) |
| return -ENOMEM; |
| |
| nlh = (struct nlmsghdr *)skb->data; |
| nlh->nlmsg_pid = 0; /* from kernel */ |
| nlh->nlmsg_flags = 0; |
| nlh->nlmsg_seq = 0; |
| nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| ani_hdr = NLMSG_DATA(nlh); |
| ani_hdr->type = ANI_MSG_GET_OEM_CAP_RSP; |
| |
| ani_hdr->length = sizeof(*cap_rsp); |
| nlh->nlmsg_len = NLMSG_LENGTH((sizeof(tAniMsgHdr) + ani_hdr->length)); |
| |
| buf = (char *)((char *)ani_hdr + sizeof(tAniMsgHdr)); |
| qdf_mem_copy(buf, &data_cap, sizeof(data_cap)); |
| |
| buf = (char *) buf + sizeof(data_cap); |
| qdf_mem_zero(&oem_cap, sizeof(oem_cap)); |
| sme_oem_get_capability(p_hdd_ctx->hHal, &oem_cap); |
| qdf_mem_copy(buf, &oem_cap, sizeof(oem_cap)); |
| |
| skb_put(skb, NLMSG_SPACE((sizeof(tAniMsgHdr) + ani_hdr->length))); |
| hdd_info("send rsp to oem-pid:%d for get_capability", |
| p_hdd_ctx->oem_pid); |
| |
| (void)nl_srv_ucast_oem(skb, p_hdd_ctx->oem_pid, MSG_DONTWAIT); |
| return 0; |
| } |
| |
| /** |
| * hdd_send_peer_status_ind_to_oem_app() - |
| * Function to send peer status to a registered application |
| * @peerMac: MAC address of peer |
| * @peerStatus: ePeerConnected or ePeerDisconnected |
| * @peerTimingMeasCap: 0: RTT/RTT2, 1: RTT3. Default is 0 |
| * @sessionId: SME session id, i.e. vdev_id |
| * @chan_info: operating channel information |
| * @dev_mode: dev mode for which indication is sent |
| * |
| * Return: none |
| */ |
| void hdd_send_peer_status_ind_to_oem_app(struct qdf_mac_addr *peerMac, |
| uint8_t peerStatus, |
| uint8_t peerTimingMeasCap, |
| uint8_t sessionId, |
| tSirSmeChanInfo *chan_info, |
| enum tQDF_ADAPTER_MODE dev_mode) |
| { |
| struct sk_buff *skb; |
| struct nlmsghdr *nlh; |
| tAniMsgHdr *aniHdr; |
| struct peer_status_info *pPeerInfo; |
| |
| if (!p_hdd_ctx || !p_hdd_ctx->hHal) { |
| hdd_err("Either HDD Ctx is null or Hal Ctx is null"); |
| return; |
| } |
| |
| /* check if oem app has registered and pid is valid */ |
| if ((!p_hdd_ctx->oem_app_registered) || (p_hdd_ctx->oem_pid == 0)) { |
| hdd_info("OEM app is not registered(%d) or pid is invalid(%d)", |
| p_hdd_ctx->oem_app_registered, |
| p_hdd_ctx->oem_pid); |
| return; |
| } |
| |
| skb = alloc_skb(NLMSG_SPACE(sizeof(tAniMsgHdr) + |
| sizeof(*pPeerInfo)), |
| GFP_KERNEL); |
| if (skb == NULL) |
| return; |
| |
| nlh = (struct nlmsghdr *)skb->data; |
| nlh->nlmsg_pid = 0; /* from kernel */ |
| nlh->nlmsg_flags = 0; |
| nlh->nlmsg_seq = 0; |
| nlh->nlmsg_type = WLAN_NL_MSG_OEM; |
| aniHdr = NLMSG_DATA(nlh); |
| aniHdr->type = ANI_MSG_PEER_STATUS_IND; |
| |
| aniHdr->length = sizeof(*pPeerInfo); |
| nlh->nlmsg_len = NLMSG_LENGTH((sizeof(tAniMsgHdr) + aniHdr->length)); |
| |
| pPeerInfo = (struct peer_status_info *) ((char *)aniHdr + sizeof(tAniMsgHdr)); |
| |
| qdf_mem_copy(pPeerInfo->peer_mac_addr, peerMac->bytes, |
| sizeof(peerMac->bytes)); |
| pPeerInfo->peer_status = peerStatus; |
| pPeerInfo->vdev_id = sessionId; |
| pPeerInfo->peer_capability = peerTimingMeasCap; |
| pPeerInfo->reserved0 = 0; |
| /* Set 0th bit of reserved0 for STA mode */ |
| if (QDF_STA_MODE == dev_mode) |
| pPeerInfo->reserved0 |= 0x01; |
| |
| if (chan_info) { |
| pPeerInfo->peer_chan_info.chan_id = chan_info->chan_id; |
| pPeerInfo->peer_chan_info.reserved0 = 0; |
| pPeerInfo->peer_chan_info.mhz = chan_info->mhz; |
| pPeerInfo->peer_chan_info.band_center_freq1 = |
| chan_info->band_center_freq1; |
| pPeerInfo->peer_chan_info.band_center_freq2 = |
| chan_info->band_center_freq2; |
| pPeerInfo->peer_chan_info.info = chan_info->info; |
| pPeerInfo->peer_chan_info.reg_info_1 = chan_info->reg_info_1; |
| pPeerInfo->peer_chan_info.reg_info_2 = chan_info->reg_info_2; |
| } else { |
| pPeerInfo->peer_chan_info.chan_id = 0; |
| pPeerInfo->peer_chan_info.reserved0 = 0; |
| pPeerInfo->peer_chan_info.mhz = 0; |
| pPeerInfo->peer_chan_info.band_center_freq1 = 0; |
| pPeerInfo->peer_chan_info.band_center_freq2 = 0; |
| pPeerInfo->peer_chan_info.info = 0; |
| pPeerInfo->peer_chan_info.reg_info_1 = 0; |
| pPeerInfo->peer_chan_info.reg_info_2 = 0; |
| } |
| skb_put(skb, NLMSG_SPACE((sizeof(tAniMsgHdr) + aniHdr->length))); |
| |
| hdd_info("sending peer " MAC_ADDRESS_STR |
| " status(%d), peerTimingMeasCap(%d), vdevId(%d), chanId(%d)" |
| " to oem app pid(%d), center freq 1 (%d), center freq 2 (%d)," |
| " info (0x%x), frequency (%d),reg info 1 (0x%x)," |
| " reg info 2 (0x%x)", |
| MAC_ADDR_ARRAY(peerMac->bytes), |
| peerStatus, peerTimingMeasCap, |
| sessionId, pPeerInfo->peer_chan_info.chan_id, |
| p_hdd_ctx->oem_pid, |
| pPeerInfo->peer_chan_info.band_center_freq1, |
| pPeerInfo->peer_chan_info.band_center_freq2, |
| pPeerInfo->peer_chan_info.info, |
| pPeerInfo->peer_chan_info.mhz, |
| pPeerInfo->peer_chan_info.reg_info_1, |
| pPeerInfo->peer_chan_info.reg_info_2); |
| |
| (void)nl_srv_ucast_oem(skb, p_hdd_ctx->oem_pid, MSG_DONTWAIT); |
| } |
| |
| /** |
| * oem_app_reg_req_handler() - function to handle APP registration request |
| * from userspace |
| * @hdd_ctx: handle to HDD context |
| * @msg_hdr: pointer to ANI message header |
| * @pid: Process ID |
| * |
| * Return: 0 if success, error code otherwise |
| */ |
| static int oem_app_reg_req_handler(struct hdd_context_s *hdd_ctx, |
| tAniMsgHdr *msg_hdr, int pid) |
| { |
| char *sign_str = NULL; |
| |
| /* Registration request is only allowed for Qualcomm Application */ |
| hdd_debug("Received App Req Req from App pid: %d len: %d", |
| pid, msg_hdr->length); |
| |
| sign_str = (char *)((char *)msg_hdr + sizeof(tAniMsgHdr)); |
| if ((OEM_APP_SIGNATURE_LEN == msg_hdr->length) && |
| (0 == strncmp(sign_str, OEM_APP_SIGNATURE_STR, |
| OEM_APP_SIGNATURE_LEN))) { |
| hdd_debug("Valid App Req Req from oem app pid: %d", pid); |
| |
| hdd_ctx->oem_app_registered = true; |
| hdd_ctx->oem_pid = pid; |
| send_oem_reg_rsp_nlink_msg(); |
| } else { |
| hdd_err("Invalid signature in App Reg Req from pid: %d", pid); |
| send_oem_err_rsp_nlink_msg(pid, OEM_ERR_INVALID_SIGNATURE); |
| return -EPERM; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * oem_data_req_handler() - function to handle data_req from userspace |
| * @hdd_ctx: handle to HDD context |
| * @msg_hdr: pointer to ANI message header |
| * @pid: Process ID |
| * |
| * Return: 0 if success, error code otherwise |
| */ |
| static int oem_data_req_handler(struct hdd_context_s *hdd_ctx, |
| tAniMsgHdr *msg_hdr, int pid) |
| { |
| hdd_debug("Received Oem Data Request length: %d from pid: %d", |
| msg_hdr->length, pid); |
| |
| if ((!hdd_ctx->oem_app_registered) || |
| (pid != hdd_ctx->oem_pid)) { |
| /* either oem app is not registered yet or pid is different */ |
| hdd_err("OEM DataReq: app not registered(%d) or incorrect pid(%d)", |
| hdd_ctx->oem_app_registered, pid); |
| send_oem_err_rsp_nlink_msg(pid, OEM_ERR_APP_NOT_REGISTERED); |
| return -EPERM; |
| } |
| |
| if ((!msg_hdr->length) || (OEM_DATA_REQ_SIZE < msg_hdr->length)) { |
| hdd_err("Invalid length (%d) in Oem Data Request", |
| msg_hdr->length); |
| send_oem_err_rsp_nlink_msg(pid, OEM_ERR_INVALID_MESSAGE_LENGTH); |
| return -EPERM; |
| } |
| |
| oem_process_data_req_msg(msg_hdr->length, |
| (char *) ((char *)msg_hdr + |
| sizeof(tAniMsgHdr))); |
| |
| return 0; |
| } |
| |
| /** |
| * oem_chan_info_req_handler() - function to handle chan_info_req from userspace |
| * @hdd_ctx: handle to HDD context |
| * @msg_hdr: pointer to ANI message header |
| * @pid: Process ID |
| * |
| * Return: 0 if success, error code otherwise |
| */ |
| static int oem_chan_info_req_handler(struct hdd_context_s *hdd_ctx, |
| tAniMsgHdr *msg_hdr, int pid) |
| { |
| hdd_debug("Received channel info request, num channel(%d) from pid: %d", |
| msg_hdr->length, pid); |
| |
| if ((!hdd_ctx->oem_app_registered) || |
| (pid != hdd_ctx->oem_pid)) { |
| /* either oem app is not registered yet or pid is different */ |
| hdd_err("Chan InfoReq: app not registered(%d) or incorrect pid(%d)", |
| hdd_ctx->oem_app_registered, pid); |
| send_oem_err_rsp_nlink_msg(pid, OEM_ERR_APP_NOT_REGISTERED); |
| return -EPERM; |
| } |
| |
| /* message length contains list of channel ids */ |
| if ((!msg_hdr->length) || |
| (WNI_CFG_VALID_CHANNEL_LIST_LEN < msg_hdr->length)) { |
| hdd_err("Invalid length (%d) in channel info request", |
| msg_hdr->length); |
| send_oem_err_rsp_nlink_msg(pid, OEM_ERR_INVALID_MESSAGE_LENGTH); |
| return -EPERM; |
| } |
| oem_process_channel_info_req_msg(msg_hdr->length, |
| (char *)((char *)msg_hdr + sizeof(tAniMsgHdr))); |
| |
| return 0; |
| } |
| |
| /** |
| * oem_set_cap_req_handler() - function to handle set_cap_req from userspace |
| * @hdd_ctx: handle to HDD context |
| * @msg_hdr: pointer to ANI message header |
| * @pid: Process ID |
| * |
| * Return: 0 if success, error code otherwise |
| */ |
| static int oem_set_cap_req_handler(struct hdd_context_s *hdd_ctx, |
| tAniMsgHdr *msg_hdr, int pid) |
| { |
| hdd_info("Received set oem cap req of length:%d from pid: %d", |
| msg_hdr->length, pid); |
| |
| if ((!hdd_ctx->oem_app_registered) || |
| (pid != hdd_ctx->oem_pid)) { |
| /* oem app is not registered yet or pid is different */ |
| hdd_err("set_oem_capability : app not registered(%d) or incorrect pid(%d)", |
| hdd_ctx->oem_app_registered, pid); |
| send_oem_err_rsp_nlink_msg(pid, OEM_ERR_APP_NOT_REGISTERED); |
| return -EPERM; |
| } |
| |
| if ((!msg_hdr->length) || |
| (sizeof(struct sme_oem_capability) < msg_hdr->length)) { |
| hdd_err("Invalid length (%d) in set_oem_capability", |
| msg_hdr->length); |
| send_oem_err_rsp_nlink_msg(pid, OEM_ERR_INVALID_MESSAGE_LENGTH); |
| return -EPERM; |
| } |
| |
| oem_process_set_cap_req_msg(msg_hdr->length, (char *) |
| ((char *)msg_hdr + sizeof(tAniMsgHdr)), |
| pid); |
| return 0; |
| } |
| |
| /** |
| * oem_get_cap_req_handler() - function to handle get_cap_req from userspace |
| * @hdd_ctx: handle to HDD context |
| * @msg_hdr: pointer to ANI message header |
| * @pid: Process ID |
| * |
| * Return: 0 if success, error code otherwise |
| */ |
| static int oem_get_cap_req_handler(struct hdd_context_s *hdd_ctx, |
| tAniMsgHdr *msg_hdr, int pid) |
| { |
| hdd_info("Rcvd get oem capability req - length:%d from pid: %d", |
| msg_hdr->length, pid); |
| |
| if ((!hdd_ctx->oem_app_registered) || |
| (pid != hdd_ctx->oem_pid)) { |
| /* oem app is not registered yet or pid is different */ |
| hdd_err("get_oem_capability : app not registered(%d) or incorrect pid(%d)", |
| hdd_ctx->oem_app_registered, pid); |
| send_oem_err_rsp_nlink_msg(pid, OEM_ERR_APP_NOT_REGISTERED); |
| return -EPERM; |
| } |
| |
| oem_process_get_cap_req_msg(); |
| return 0; |
| } |
| |
| /** |
| * oem_request_dispatcher() - OEM command dispatcher API |
| * @msg_hdr: ANI Message Header |
| * @pid: process id |
| * |
| * This API is used to dispatch the command from OEM depending |
| * on the type of the message received. |
| * |
| * Return: None |
| */ |
| static void oem_request_dispatcher(tAniMsgHdr *msg_hdr, int pid) |
| { |
| switch (msg_hdr->type) { |
| case ANI_MSG_APP_REG_REQ: |
| oem_app_reg_req_handler(p_hdd_ctx, msg_hdr, pid); |
| break; |
| |
| case ANI_MSG_OEM_DATA_REQ: |
| oem_data_req_handler(p_hdd_ctx, msg_hdr, pid); |
| break; |
| |
| case ANI_MSG_CHANNEL_INFO_REQ: |
| oem_chan_info_req_handler(p_hdd_ctx, msg_hdr, pid); |
| break; |
| |
| case ANI_MSG_SET_OEM_CAP_REQ: |
| oem_set_cap_req_handler(p_hdd_ctx, msg_hdr, pid); |
| break; |
| |
| case ANI_MSG_GET_OEM_CAP_REQ: |
| oem_get_cap_req_handler(p_hdd_ctx, msg_hdr, pid); |
| break; |
| |
| default: |
| hdd_err("Received Invalid message type (%d), length (%d)", |
| msg_hdr->type, msg_hdr->length); |
| send_oem_err_rsp_nlink_msg(pid, OEM_ERR_INVALID_MESSAGE_TYPE); |
| } |
| } |
| |
| #ifdef CNSS_GENL |
| /** |
| * oem_cmd_handler() - API to handle OEM commands |
| * @data: Pointer to data |
| * @data_len: length of the received data |
| * @ctx: Pointer to the context |
| * @pid: Process id |
| * |
| * This API handles the command from OEM application from user space and |
| * send back event to user space if necessary. |
| * |
| * Return: None |
| */ |
| static void oem_cmd_handler(const void *data, int data_len, void *ctx, int pid) |
| { |
| tAniMsgHdr *msg_hdr; |
| int ret; |
| struct nlattr *tb[CLD80211_ATTR_MAX + 1]; |
| |
| ret = wlan_hdd_validate_context(p_hdd_ctx); |
| if (ret) { |
| hdd_err("hdd ctx validate fails"); |
| return; |
| } |
| |
| if (nla_parse(tb, CLD80211_ATTR_MAX, data, data_len, NULL)) { |
| hdd_err("Invalid ATTR"); |
| return; |
| } |
| |
| if (!tb[CLD80211_ATTR_DATA]) { |
| hdd_err("attr ATTR_DATA failed"); |
| return; |
| } |
| |
| msg_hdr = (tAniMsgHdr *)nla_data(tb[CLD80211_ATTR_DATA]); |
| if (!msg_hdr) { |
| hdd_err("msg_hdr null"); |
| send_oem_err_rsp_nlink_msg(pid, OEM_ERR_NULL_MESSAGE_HEADER); |
| return; |
| } |
| oem_request_dispatcher(msg_hdr, pid); |
| } |
| |
| /** |
| * oem_activate_service() - API to register the oem command handler |
| * @hdd_ctx: Pointer to HDD Context |
| * |
| * This API is used to register the oem app command handler. Argument |
| * @pAdapter is given for prototype compatibility with legacy code. |
| * |
| * Return: 0 |
| */ |
| int oem_activate_service(struct hdd_context_s *hdd_ctx) |
| { |
| p_hdd_ctx = hdd_ctx; |
| register_cld_cmd_cb(WLAN_NL_MSG_OEM, oem_cmd_handler, NULL); |
| return 0; |
| } |
| #else |
| |
| /* |
| * Callback function invoked by Netlink service for all netlink |
| * messages (from user space) addressed to WLAN_NL_MSG_OEM |
| */ |
| |
| /** |
| * oem_msg_callback() - callback invoked by netlink service |
| * @skb: skb with netlink message |
| * |
| * This function gets invoked by netlink service when a message |
| * is received from user space addressed to WLAN_NL_MSG_OEM |
| * |
| * Return: zero on success |
| * On error, error number will be returned. |
| */ |
| static int oem_msg_callback(struct sk_buff *skb) |
| { |
| struct nlmsghdr *nlh; |
| tAniMsgHdr *msg_hdr; |
| int ret; |
| |
| nlh = (struct nlmsghdr *)skb->data; |
| if (!nlh) { |
| hdd_err("Netlink header null"); |
| return -EPERM; |
| } |
| |
| ret = wlan_hdd_validate_context(p_hdd_ctx); |
| if (ret) |
| return ret; |
| |
| msg_hdr = NLMSG_DATA(nlh); |
| |
| if (!msg_hdr) { |
| hdd_err("Message header null"); |
| send_oem_err_rsp_nlink_msg(nlh->nlmsg_pid, |
| OEM_ERR_NULL_MESSAGE_HEADER); |
| return -EPERM; |
| } |
| |
| if (nlh->nlmsg_len < |
| NLMSG_LENGTH(sizeof(tAniMsgHdr) + msg_hdr->length)) { |
| hdd_err("Invalid nl msg len, nlh->nlmsg_len (%d), msg_hdr->len (%d)", |
| nlh->nlmsg_len, msg_hdr->length); |
| send_oem_err_rsp_nlink_msg(nlh->nlmsg_pid, |
| OEM_ERR_INVALID_MESSAGE_LENGTH); |
| return -EPERM; |
| } |
| |
| oem_request_dispatcher(msg_hdr, nlh->nlmsg_pid); |
| return 0; |
| } |
| |
| static int __oem_msg_callback(struct sk_buff *skb) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = oem_msg_callback(skb); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * oem_activate_service() - Activate oem message handler |
| * @hdd_ctx: pointer to global HDD context |
| * |
| * This function registers a handler to receive netlink message from |
| * an OEM application process. |
| * |
| * Return: zero on success |
| * On error, error number will be returned. |
| */ |
| int oem_activate_service(struct hdd_context_s *hdd_ctx) |
| { |
| p_hdd_ctx = hdd_ctx; |
| |
| /* Register the msg handler for msgs addressed to WLAN_NL_MSG_OEM */ |
| return nl_srv_register(WLAN_NL_MSG_OEM, __oem_msg_callback); |
| } |
| #endif |
| #endif |