| /* |
| * Copyright (c) 2018 The Linux Foundation. All rights reserved. |
| * |
| * 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. |
| */ |
| |
| /** |
| * DOC: implementation of the driver FTM functions interfacing with linux kernel |
| */ |
| |
| #include <net/cfg80211.h> |
| #include <qdf_util.h> |
| #include <wlan_objmgr_pdev_obj.h> |
| #include <wlan_cfg80211.h> |
| #include <wlan_cfg80211_ftm.h> |
| #include <wlan_ftm_ucfg_api.h> |
| #include <wlan_osif_priv.h> |
| #include <qdf_types.h> |
| #include <qdf_module.h> |
| |
| static const struct nla_policy |
| wlan_cfg80211_ftm_policy[WLAN_CFG80211_FTM_ATTR_MAX + 1] = { |
| [WLAN_CFG80211_FTM_ATTR_CMD] = {.type = NLA_U32}, |
| [WLAN_CFG80211_FTM_ATTR_DATA] = {.type = NLA_BINARY, |
| .len = WLAN_FTM_DATA_MAX_LEN}, |
| }; |
| |
| static int |
| wlan_cfg80211_process_ftm_cmd(struct wlan_objmgr_pdev *pdev, |
| struct nlattr *tb[]) |
| { |
| int buf_len; |
| void *buf; |
| QDF_STATUS status; |
| |
| if (!tb[WLAN_CFG80211_FTM_ATTR_DATA]) { |
| ftm_err("WLAN_CFG80211_FTM_ATTR_DATA attribute is invalid"); |
| return -EINVAL; |
| } |
| |
| buf = nla_data(tb[WLAN_CFG80211_FTM_ATTR_DATA]); |
| buf_len = nla_len(tb[WLAN_CFG80211_FTM_ATTR_DATA]); |
| |
| if (buf_len > WLAN_FTM_DATA_MAX_LEN) |
| return -EINVAL; |
| |
| ftm_debug("****FTM Tx cmd len = %d*****", buf_len); |
| |
| status = ucfg_wlan_ftm_testmode_cmd(pdev, buf, buf_len); |
| |
| if (QDF_IS_STATUS_ERROR(status)) |
| status = QDF_STATUS_E_BUSY; |
| |
| return qdf_status_to_os_return(status); |
| } |
| |
| int |
| wlan_cfg80211_ftm_testmode_cmd(struct wlan_objmgr_pdev *pdev, |
| void *data, uint32_t len) |
| { |
| struct nlattr *tb[WLAN_CFG80211_FTM_ATTR_MAX + 1]; |
| int err = 0, cmd; |
| struct wifi_ftm_pdev_priv_obj *ftm_pdev_obj; |
| |
| ftm_pdev_obj = wlan_objmgr_pdev_get_comp_private_obj(pdev, |
| WLAN_UMAC_COMP_FTM); |
| if (!ftm_pdev_obj) { |
| ftm_err("Failed to get ftm pdev component"); |
| return -EINVAL; |
| } |
| |
| ftm_pdev_obj->cmd_type = WIFI_FTM_CMD_NL80211; |
| |
| err = wlan_cfg80211_nla_parse(tb, WLAN_CFG80211_FTM_ATTR_MAX - 1, data, |
| len, wlan_cfg80211_ftm_policy); |
| if (err) { |
| ftm_err("Testmode INV ATTR"); |
| return err; |
| } |
| |
| if (!tb[WLAN_CFG80211_FTM_ATTR_CMD]) { |
| ftm_err("Testmode INV CMD"); |
| return -EINVAL; |
| } |
| cmd = nla_get_u32(tb[WLAN_CFG80211_FTM_ATTR_CMD]); |
| |
| switch (cmd) { |
| case WLAN_CFG80211_FTM_CMD_WLAN_FTM: |
| err = wlan_cfg80211_process_ftm_cmd(pdev, tb); |
| break; |
| |
| default: |
| ftm_err("unknown command: %d", cmd); |
| return -ENOENT; |
| } |
| |
| return err; |
| } |
| |
| qdf_export_symbol(wlan_cfg80211_ftm_testmode_cmd); |
| |
| QDF_STATUS |
| wlan_cfg80211_ftm_rx_event(struct wlan_objmgr_pdev *pdev, |
| uint8_t *data, uint32_t len) |
| { |
| struct pdev_osif_priv *pdev_ospriv; |
| qdf_nbuf_t skb = NULL; |
| |
| if (!data || !len) { |
| ftm_err("Null data or invalid length"); |
| return QDF_STATUS_E_INVAL; |
| } |
| |
| pdev_ospriv = wlan_pdev_get_ospriv(pdev); |
| if (!pdev_ospriv) { |
| ftm_err("pdev_ospriv is NULL"); |
| return QDF_STATUS_E_INVAL; |
| } |
| |
| ftm_debug("Testmode response event generated"); |
| skb = cfg80211_testmode_alloc_event_skb(pdev_ospriv->wiphy, |
| len, GFP_ATOMIC); |
| if (!skb) |
| return QDF_STATUS_E_NOMEM; |
| |
| if (nla_put_u32(skb, WLAN_CFG80211_FTM_ATTR_CMD, |
| WLAN_CFG80211_FTM_CMD_WLAN_FTM) || |
| nla_put(skb, WLAN_CFG80211_FTM_ATTR_DATA, len, data)) { |
| goto nla_put_failure; |
| } |
| cfg80211_testmode_event(skb, GFP_ATOMIC); |
| |
| return QDF_STATUS_SUCCESS; |
| |
| nla_put_failure: |
| qdf_nbuf_free(skb); |
| ftm_err("nla_put failed on testmode rx skb!"); |
| |
| return QDF_STATUS_E_INVAL; |
| } |