Implement AP channel switch command and handle
channel switch complete event.
Signed-hostap: Boris Presman <boris.presman@xxxxxx>
Signed-hostap: Victor Goldenshtein <victorg@xxxxxx>
---
src/drivers/driver_nl80211.c | 54 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 54 insertions(+), 0 deletions(-)
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index fe6e4d2..7e8b800 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -2054,6 +2054,8 @@ static void nl80211_spurious_frame(struct i802_bss *bss, struct nlattr **tb,
static void do_process_drv_event(struct wpa_driver_nl80211_data *drv,
int cmd, struct nlattr **tb)
{
+ union wpa_event_data data;
+
if (drv->ap_scan_as_station != NL80211_IFTYPE_UNSPECIFIED &&
(cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
cmd == NL80211_CMD_SCAN_ABORTED)) {
@@ -2161,6 +2163,17 @@ 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_AP_CHANNEL_SWITCH:
+ os_memset(&data, 0, sizeof(data));
+ if (tb[NL80211_ATTR_WIPHY_FREQ]) {
+ data.channel_switch_complete.freq =
+ nla_get_u16(tb[NL80211_ATTR_WIPHY_FREQ]);
+ }
+ data.channel_switch_complete.status = TRUE;
+ wpa_printf(MSG_DEBUG, "nl80211: Channel switch complete event");
+ wpa_supplicant_event(drv->ctx, EVENT_CHANNEL_SWITCH_COMPLETE,
+ &data);
+ break;
default:
wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
"(cmd=%d)", cmd);
@@ -8805,6 +8818,46 @@ nla_put_failure:
}
+static int nl80211_ap_channel_switch(void *priv,
+ struct hostapd_channel_switch *params)
+{
+ struct i802_bss *bss = priv;
+ struct wpa_driver_nl80211_data *drv = bss->drv;
+ struct nl_msg *msg;
+ int ret;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Channel switch, "
+ "ch_switch_count = %d, tx_block = %d, "
+ "freq = %d, post_switch_block_tx = %d.",
+ params->ch_switch_count, params->tx_block,
+ params->freq, params->post_switch_block_tx);
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ nl80211_cmd(bss->drv, msg, 0, NL80211_CMD_AP_CHANNEL_SWITCH);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_CH_SWITCH_COUNT, params->ch_switch_count);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+
+ if (params->tx_block)
+ NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_BLOCK_TX);
+
+ if (params->post_switch_block_tx)
+ NLA_PUT_FLAG(msg, NL80211_ATTR_CH_SWITCH_POST_BLOCK_TX);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == 0)
+ return 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to channel switch: "
+ "%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,
@@ -9100,6 +9153,7 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.poll_client = nl80211_poll_client,
.set_p2p_powersave = nl80211_set_p2p_powersave,
.enable_tx = nl80211_enable_dfs_tx,
+ .hapd_channel_switch = nl80211_ap_channel_switch,
#ifdef CONFIG_TDLS
.send_tdls_mgmt = nl80211_send_tdls_mgmt,
.tdls_oper = nl80211_tdls_oper,
--
1.7.5.4
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