From: Carl Huang Date: Thu, 9 Dec 2021 08:17:49 +0000 (+0200) Subject: ath11k: support MAC address randomization in scan X-Git-Tag: v6.1-rc5~2306^2~165^2^2~11 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9cbd7fc9be82a99af690adcebd6f2cdae4c7c193;p=platform%2Fkernel%2Flinux-starfive.git ath11k: support MAC address randomization in scan The driver reports NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR capability to upper layer based on the service bit firmware reported. Driver sets the spoofed flag in scan_ctrl_flag to firmware if upper layer has enabled this feature in scan request. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/1638948007-9609-1-git-send-email-quic_cjhuang@quicinc.com --- diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index b7ab82f..75857de 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -3543,6 +3543,12 @@ static int ath11k_mac_op_hw_scan(struct ieee80211_hw *hw, arg.chan_list[i] = req->channels[i]->center_freq; } + if (req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { + arg.scan_f_add_spoofed_mac_in_probe = 1; + ether_addr_copy(arg.mac_addr.addr, req->mac_addr); + ether_addr_copy(arg.mac_mask.addr, req->mac_addr_mask); + } + ret = ath11k_start_scan(ar, &arg); if (ret) { ath11k_warn(ar->ab, "failed to start hw scan: %d\n", ret); @@ -5587,6 +5593,14 @@ static int ath11k_mac_op_start(struct ieee80211_hw *hw) goto err; } + if (test_bit(WMI_TLV_SERVICE_SPOOF_MAC_SUPPORT, ar->wmi->wmi_ab->svc_map)) { + ret = ath11k_wmi_scan_prob_req_oui(ar, ar->mac_addr); + if (ret) { + ath11k_err(ab, "failed to set prob req oui: %i\n", ret); + goto err; + } + } + ret = ath11k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_ARP_AC_OVERRIDE, 0, pdev->pdev_id); if (ret) { @@ -8183,6 +8197,11 @@ static int __ath11k_mac_register(struct ath11k *ar) ar->hw->wiphy->max_ap_assoc_sta = ar->max_num_stations; + if (test_bit(WMI_TLV_SERVICE_SPOOF_MAC_SUPPORT, ar->wmi->wmi_ab->svc_map)) { + ar->hw->wiphy->features |= + NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; + } + ar->hw->queues = ATH11K_HW_MAX_QUEUES; ar->hw->wiphy->tx_queue_len = ATH11K_QUEUE_LEN; ar->hw->offchannel_tx_hw_queue = ATH11K_HW_MAX_QUEUES - 1; diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c index 52facd7..2b4d27d 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -2181,6 +2181,8 @@ int ath11k_wmi_send_scan_start_cmd(struct ath11k *ar, cmd->num_ssids = params->num_ssids; cmd->ie_len = params->extraie.len; cmd->n_probes = params->n_probes; + ether_addr_copy(cmd->mac_addr.addr, params->mac_addr.addr); + ether_addr_copy(cmd->mac_mask.addr, params->mac_mask.addr); ptr += sizeof(*cmd); @@ -7710,3 +7712,31 @@ int ath11k_wmi_wow_enable(struct ath11k *ar) return ath11k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_ENABLE_CMDID); } + +int ath11k_wmi_scan_prob_req_oui(struct ath11k *ar, + const u8 mac_addr[ETH_ALEN]) +{ + struct sk_buff *skb; + struct wmi_scan_prob_req_oui_cmd *cmd; + u32 prob_req_oui; + int len; + + prob_req_oui = (((u32)mac_addr[0]) << 16) | + (((u32)mac_addr[1]) << 8) | mac_addr[2]; + + len = sizeof(*cmd); + skb = ath11k_wmi_alloc_skb(ar->wmi->wmi_ab, len); + if (!skb) + return -ENOMEM; + + cmd = (struct wmi_scan_prob_req_oui_cmd *)skb->data; + cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, + WMI_TAG_SCAN_PROB_REQ_OUI_CMD) | + FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE); + cmd->prob_req_oui = prob_req_oui; + + ath11k_dbg(ar->ab, ATH11K_DBG_WMI, "wmi scan prob req oui %d\n", + prob_req_oui); + + return ath11k_wmi_cmd_send(ar->wmi, skb, WMI_SCAN_PROB_REQ_OUI_CMDID); +} diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h index 5c8363a..aeaf89b 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.h +++ b/drivers/net/wireless/ath/ath11k/wmi.h @@ -3313,6 +3313,8 @@ struct scan_req_params { u32 num_hint_bssid; struct hint_short_ssid hint_s_ssid[WLAN_SCAN_MAX_HINT_S_SSID]; struct hint_bssid hint_bssid[WLAN_SCAN_MAX_HINT_BSSID]; + struct wmi_mac_addr mac_addr; + struct wmi_mac_addr mac_mask; }; struct wmi_ssid_arg { @@ -3676,6 +3678,11 @@ struct wmi_scan_chan_list_cmd { u32 pdev_id; } __packed; +struct wmi_scan_prob_req_oui_cmd { + u32 tlv_header; + u32 prob_req_oui; +} __packed; + #define WMI_MGMT_SEND_DOWNLD_LEN 64 #define WMI_TX_PARAMS_DWORD0_POWER GENMASK(7, 0) @@ -5530,5 +5537,6 @@ int ath11k_wmi_set_hw_mode(struct ath11k_base *ab, enum wmi_host_hw_mode_config_type mode); int ath11k_wmi_wow_host_wakeup_ind(struct ath11k *ar); int ath11k_wmi_wow_enable(struct ath11k *ar); - +int ath11k_wmi_scan_prob_req_oui(struct ath11k *ar, + const u8 mac_addr[ETH_ALEN]); #endif