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qcacmn: Add support to randomize probe req SA and Seq number

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qcacld-2.0 to qcacmn propagation

Randomize probe request's source address and sequence number to
improve user's privacy.

Change-Id: I265f15476f1a23a268f159a44b6a3e4243fb9068
CRs-Fixed: 1105081
This commit is contained in:
Rajeev Kumar Sirasanagandla
2017-06-08 18:12:50 +05:30
committed by snandini
parent ec65bb40ab
commit 0c5b3077fe
1 changed files with 38 additions and 0 deletions
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38
wmi_unified_tlv.c
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@@ -2157,6 +2157,23 @@ static inline void *get_pdev_wmi_handle(wmi_unified_t wmi_handle, uint8_t vdev_i
return wmi_unified_get_pdev_handle(wmi_handle->soc, pdev_id); return wmi_unified_get_pdev_handle(wmi_handle->soc, pdev_id);
} }
/**
* wmi_copy_scan_random_mac() - To copy scan randomization attrs to wmi buffer
* @mac: random mac addr
* @mask: random mac mask
* @mac_addr: wmi random mac
* @mac_mask: wmi random mac mask
*
* Return None.
*/
static inline
void wmi_copy_scan_random_mac(uint8_t *mac, uint8_t *mask,
wmi_mac_addr *mac_addr, wmi_mac_addr *mac_mask)
{
WMI_CHAR_ARRAY_TO_MAC_ADDR(mac, mac_addr);
WMI_CHAR_ARRAY_TO_MAC_ADDR(mask, mac_mask);
}
/** /**
* send_scan_start_cmd_tlv() - WMI scan start function * send_scan_start_cmd_tlv() - WMI scan start function
* @param wmi_handle : handle to WMI. * @param wmi_handle : handle to WMI.
@@ -2241,6 +2258,12 @@ static QDF_STATUS send_scan_start_cmd_tlv(wmi_unified_t wmi_handle,
WMI_LOGD("scan_ctrl_flags_ext = %x", cmd->scan_ctrl_flags_ext); WMI_LOGD("scan_ctrl_flags_ext = %x", cmd->scan_ctrl_flags_ext);
if (params->scan_random.randomize)
wmi_copy_scan_random_mac(params->scan_random.mac_addr,
params->scan_random.mac_mask,
&cmd->mac_addr,
&cmd->mac_mask);
buf_ptr += sizeof(*cmd); buf_ptr += sizeof(*cmd);
tmp_ptr = (uint32_t *) (buf_ptr + WMI_TLV_HDR_SIZE); tmp_ptr = (uint32_t *) (buf_ptr + WMI_TLV_HDR_SIZE);
for (i = 0; i < params->num_chan; ++i) for (i = 0; i < params->num_chan; ++i)
@@ -5212,6 +5235,11 @@ static QDF_STATUS send_scan_probe_setoui_cmd_tlv(wmi_unified_t wmi_handle,
WMI_LOGD("%s: wmi:oui received from hdd %08x", __func__, WMI_LOGD("%s: wmi:oui received from hdd %08x", __func__,
cmd->prob_req_oui); cmd->prob_req_oui);
cmd->vdev_id = psetoui->vdev_id;
cmd->flags = WMI_SCAN_PROBE_OUI_SPOOFED_MAC_IN_PROBE_REQ;
if (psetoui->enb_probe_req_sno_randomization)
cmd->flags |= WMI_SCAN_PROBE_OUI_RANDOM_SEQ_NO_IN_PROBE_REQ;
if (wmi_unified_cmd_send(wmi_handle, wmi_buf, len, if (wmi_unified_cmd_send(wmi_handle, wmi_buf, len,
WMI_SCAN_PROB_REQ_OUI_CMDID)) { WMI_SCAN_PROB_REQ_OUI_CMDID)) {
WMI_LOGE("%s: failed to send command", __func__); WMI_LOGE("%s: failed to send command", __func__);
@@ -7253,6 +7281,16 @@ static QDF_STATUS send_pno_start_cmd_tlv(wmi_unified_t wmi_handle,
cmd->fast_scan_period, cmd->slow_scan_period); cmd->fast_scan_period, cmd->slow_scan_period);
WMI_LOGD("fast_scan_max_cycles: %d", cmd->fast_scan_max_cycles); WMI_LOGD("fast_scan_max_cycles: %d", cmd->fast_scan_max_cycles);
/* mac randomization attributes */
if (pno->scan_random.randomize) {
cmd->flags |= WMI_NLO_CONFIG_SPOOFED_MAC_IN_PROBE_REQ |
WMI_NLO_CONFIG_RANDOM_SEQ_NO_IN_PROBE_REQ;
wmi_copy_scan_random_mac(pno->scan_random.mac_addr,
pno->scan_random.mac_mask,
&cmd->mac_addr,
&cmd->mac_mask);
}
buf_ptr += sizeof(wmi_nlo_config_cmd_fixed_param); buf_ptr += sizeof(wmi_nlo_config_cmd_fixed_param);
cmd->no_of_ssids = QDF_MIN(pno->networks_cnt, WMI_NLO_MAX_SSIDS); cmd->no_of_ssids = QDF_MIN(pno->networks_cnt, WMI_NLO_MAX_SSIDS);