Add command to trigger radar detection in the driver/HW.
Once radar detection has started, the driver/device shall
continuously monitor the Operating Channel (In-Service
Monitoring) to ensure that there is no radar interferences
on that channel. Process radar detection event in
do_process_drv_event().
Signed-hostap: Victor Goldenshtein <victorg@xxxxxx>
---
src/drivers/driver_nl80211.c | 50 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 50 insertions(+), 0 deletions(-)
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index c2780a4..31edc98 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -2067,6 +2067,22 @@ static void nl80211_client_probe_event(struct wpa_driver_nl80211_data *drv,
wpa_supplicant_event(drv->ctx, EVENT_DRIVER_CLIENT_POLL_OK, &data);
}
+static void nl80211_radar_event(struct wpa_driver_nl80211_data *drv,
+ struct nlattr **tb)
+{
+ union wpa_event_data data;
+
+ if (!tb[NL80211_ATTR_WIPHY_FREQ])
+ return;
+
+ os_memset(&data, 0, sizeof(data));
+ data.radar_detected.freq = nla_get_u16(tb[NL80211_ATTR_WIPHY_FREQ]);
+
+ wpa_printf(MSG_DEBUG, "nl80211: Radar detected event on freq = %d",
+ data.radar_detected.freq);
+
+ wpa_supplicant_event(drv->ctx, EVENT_RADAR_DETECTED, &data);
+}
static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
int wds)
@@ -2210,6 +2226,9 @@ static void do_process_drv_event(struct wpa_driver_nl80211_data *drv,
case NL80211_CMD_PROBE_CLIENT:
nl80211_client_probe_event(drv, tb);
break;
+ case NL80211_CMD_RADAR_DETECT:
+ nl80211_radar_event(drv, tb);
+ break;
default:
wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
"(cmd=%d)", cmd);
@@ -8932,6 +8951,36 @@ nla_put_failure:
}
+static int nl80211_start_radar_detection(void *priv, int freq)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ int ret;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Start radar detection");
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_RADAR_DETECT);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
+
+ /* only HT20 is supported at this point */
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, NL80211_CHAN_HT20);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == 0)
+ return 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to start radar detection: "
+ "%d (%s)", ret, strerror(-ret));
+nla_put_failure:
+ return -1;
+}
+
+
#ifdef CONFIG_TDLS
static int nl80211_send_tdls_mgmt(void *priv, const u8 *dst, u8 action_code,
@@ -9228,6 +9277,7 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.set_p2p_powersave = nl80211_set_p2p_powersave,
.enable_tx = nl80211_enable_dfs_tx,
.hapd_channel_switch = nl80211_ap_channel_switch,
+ .start_radar_detection = nl80211_start_radar_detection,
#ifdef CONFIG_TDLS
.send_tdls_mgmt = nl80211_send_tdls_mgmt,
.tdls_oper = nl80211_tdls_oper,
--
1.7.5.4
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