From: John Crispin <john@xxxxxxxxxxx>
In order to start the CCA process we need to send NL80211_CMD_COLOR_CHANGE
to the kernel. This patch adds the required code.
Co-developed-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
Signed-off-by: John Crispin <john@xxxxxxxxxxx>
Signed-off-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
---
src/drivers/driver_nl80211.c | 79 ++++++++++++++++++++++++++++++++++++
1 file changed, 79 insertions(+)
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index f04934454..927d879de 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -9925,6 +9925,82 @@ error:
}
+#ifdef CONFIG_IEEE80211AX
+static int nl80211_switch_color(void *priv, struct cca_settings *settings)
+{
+ struct nl_msg *msg;
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nlattr *beacon_cca;
+ int ret = -ENOBUFS;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Color change request (cca_count=%u color=%d)",
+ settings->cca_count, settings->cca_color);
+
+ if (drv->nlmode != NL80211_IFTYPE_AP)
+ return -EOPNOTSUPP;
+
+ if (!settings->beacon_cca.tail)
+ return -EINVAL;
+
+ if ((settings->beacon_cca.tail_len <= settings->counter_offset_beacon) ||
+ (settings->beacon_cca.tail[settings->counter_offset_beacon] !=
+ settings->cca_count))
+ return -EINVAL;
+
+ if (settings->beacon_cca.probe_resp &&
+ ((settings->beacon_cca.probe_resp_len <=
+ settings->counter_offset_presp) ||
+ (settings->beacon_cca.probe_resp[settings->counter_offset_presp] !=
+ settings->cca_count)))
+ return -EINVAL;
+
+ if (!(msg = nl80211_bss_msg(bss, 0, NL80211_CMD_COLOR_CHANGE_REQUEST)) ||
+ nla_put_u8(msg, NL80211_ATTR_COLOR_CHANGE_COUNT,
+ settings->cca_count) ||
+ nla_put_u8(msg, NL80211_ATTR_COLOR_CHANGE_COLOR,
+ settings->cca_color))
+ goto error;
+
+ /* beacon_after params */
+ ret = set_beacon_data(msg, &settings->beacon_after);
+ if (ret)
+ goto error;
+
+ /* beacon_csa params */
+ beacon_cca = nla_nest_start(msg, NL80211_ATTR_COLOR_CHANGE_ELEMS);
+ if (!beacon_cca)
+ goto fail;
+
+ ret = set_beacon_data(msg, &settings->beacon_cca);
+ if (ret)
+ goto error;
+
+ if (nla_put_u16(msg, NL80211_ATTR_CNTDWN_OFFS_BEACON,
+ settings->counter_offset_beacon) ||
+ (settings->beacon_cca.probe_resp &&
+ nla_put_u16(msg, NL80211_ATTR_CNTDWN_OFFS_PRESP,
+ settings->counter_offset_presp)))
+ goto fail;
+
+ nla_nest_end(msg, beacon_cca);
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL);
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: switch_color failed err=%d (%s)",
+ ret, strerror(-ret));
+ }
+ return ret;
+
+fail:
+ ret = -ENOBUFS;
+error:
+ nlmsg_free(msg);
+ wpa_printf(MSG_DEBUG, "nl80211: Could not build color switch request");
+ return ret;
+}
+#endif
+
+
static int nl80211_add_ts(void *priv, u8 tsid, const u8 *addr,
u8 user_priority, u16 admitted_time)
{
@@ -12187,6 +12263,9 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.get_survey = wpa_driver_nl80211_get_survey,
.status = wpa_driver_nl80211_status,
.switch_channel = nl80211_switch_channel,
+#ifdef CONFIG_IEEE80211AX
+ .switch_color = nl80211_switch_color,
+#endif
#ifdef ANDROID_P2P
.set_noa = wpa_driver_set_p2p_noa,
.get_noa = wpa_driver_get_p2p_noa,
--
2.29.2
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