ath11k: support MAC address randomization in scan
PATCH 1/1 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
--- drivers/net/wireless/ath/ath11k/mac.c | 19 +++++++++++++++++++ drivers/net/wireless/ath/ath11k/wmi.c | 30 ++++++++++++++++++++++++++++++ drivers/net/wireless/ath/ath11k/wmi.h | 9 +++++++++ 3 files changed, 58 insertions(+)
drivers/net/wireless/ath/ath11k/mac.c +19 -0
@@ -3048,6 +3048,12 @@ static int ath11k_mac_op_hw_scan(struct ieee80211_hw *hw, arg.scan_flags |=WMI_SCAN_FLAG_PASSIVE ; } +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); + } +if (req->n_channels) { arg.num_chan = req->n_channels;for (i =0 ; i < arg.num_chan; i++)
@@ -4992,6 +4998,14 @@ 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) {
@@ -7888,6 +7902,11 @@ 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 ; + } +if (test_bit (WMI_TLV_SERVICE_NLO , ar->wmi->wmi_ab->svc_map)) { ar->hw->wiphy->max_sched_scan_ssids =WMI_PNO_MAX_SUPP_NETWORKS ; ar->hw->wiphy->max_match_sets =WMI_PNO_MAX_SUPP_NETWORKS ;
drivers/net/wireless/ath/ath11k/wmi.c +30 -0
@@ -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);
@@ -8983,3 +8985,31 @@ int ath11k_wmi_gtk_rekey_getinfo(struct ath11k *ar, arvif->vdev_id);return ath11k_wmi_cmd_send (ar->wmi, skb,WMI_GTK_OFFLOAD_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 ); +}
drivers/net/wireless/ath/ath11k/wmi.h +9 -0
@@ -3369,6 +3369,8 @@ 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 {
@@ -3749,6 +3751,11 @@ 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)
@@ -6056,4 +6063,6 @@ int ath11k_wmi_gtk_rekey_offload(struct ath11k *ar, struct ath11k_vif *arvif, bool enable);int ath11k_wmi_gtk_rekey_getinfo (struct ath11k *ar,struct ath11k_vif *arvif); +int ath11k_wmi_scan_prob_req_oui (struct ath11k *ar, +const u8 mac_addr[ETH_ALEN ]);#endif
Signature · 1 line
2.7.4
Quoted 8 lines · Carl Huang
The driver reports
NL80211_FEATURE_SCAN_RANDOM_MAC_ADDRcapability to upper layer based on the service bit firmware reported. Driver sets the spoofed flag inscan_ctrl_flagto 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 <[email protected]>
Fails to apply:
error: patch failed: drivers/net/wireless/ath/ath11k/mac.c:7888
error: drivers/net/wireless/ath/ath11k/mac.c: patch does not apply
error: patch failed: drivers/net/wireless/ath/ath11k/wmi.c:8983
error: drivers/net/wireless/ath/ath11k/wmi.c: patch does not apply
error: patch failed: drivers/net/wireless/ath/ath11k/wmi.h:6056
error: drivers/net/wireless/ath/ath11k/wmi.h: patch does not apply stg import: Diff does not apply cleanly
Patch set to Changes Requested.
Signature · 3 lines
https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches