[PATCH 4/4] mesh: Report HT operation mode to kernel

[Masashi Honma]

Report HT operation mode to kernel to broadcast correct IE in beacon
(for example HT information IE).

Signed-off-by: Masashi Honma <masashi.honma at gmail.com>
---
 src/drivers/driver.h         |  2 ++
 src/drivers/driver_nl80211.c | 58 ++++++++++++++++++++++++++++++++++++++++++++
 wpa_supplicant/mesh.c        |  4 +++
 3 files changed, 64 insertions(+)

diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index b0d25f0..57dc9bd 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1121,6 +1121,7 @@ struct wpa_driver_mesh_bss_params {
 #define WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS		0x00000001
 #define WPA_DRIVER_MESH_CONF_FLAG_PEER_LINK_TIMEOUT	0x00000002
 #define WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS	0x00000004
+#define WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE		0x00000008
 	/*
 	 * TODO: Other mesh configuration parameters would go here.
 	 * See NL80211_MESHCONF_* for all the mesh config parameters.
@@ -1129,6 +1130,7 @@ struct wpa_driver_mesh_bss_params {
 	int auto_plinks;
 	int peer_link_timeout;
 	int max_peer_links;
+	u16 ht_opmode;
 };
 
 struct wpa_driver_mesh_join_params {
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 7d8330a..18468c9 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -200,6 +200,10 @@ static int nl80211_leave_ibss(struct wpa_driver_nl80211_data *drv,
 
 static int i802_set_iface_flags(struct i802_bss *bss, int up);
 static int nl80211_set_param(void *priv, const char *param);
+#ifdef CONFIG_MESH
+static int nl80211_put_mesh_config(struct nl_msg *msg,
+				   struct wpa_driver_mesh_bss_params *params);
+#endif /* CONFIG_MESH */
 
 
 /* Converts nl80211_chan_width to a common format */
@@ -3468,6 +3472,39 @@ static int nl80211_put_beacon_int(struct nl_msg *msg, int beacon_int)
 }
 
 
+#ifdef CONFIG_MESH
+static int nl80211_set_mesh_config(void *priv,
+				   struct wpa_driver_mesh_bss_params *params)
+{
+	struct i802_bss *bss = priv;
+	struct wpa_driver_nl80211_data *drv = bss->drv;
+	struct nl_msg *msg;
+	int ret;
+
+	msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_MESH_CONFIG);
+	if (!msg)
+		return -1;
+
+	ret = nl80211_put_mesh_config(msg, params);
+	if (ret < 0)
+		goto fail;
+
+	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+	msg = NULL;
+	if (ret) {
+		wpa_printf(MSG_ERROR, "nl80211: Mesh config set failed: %d (%s)",
+			   ret, strerror(-ret));
+		goto fail;
+	}
+	return 0;
+
+fail:
+	nlmsg_free(msg);
+	return ret;
+}
+#endif /* CONFIG_MESH */
+
+
 static int wpa_driver_nl80211_set_ap(void *priv,
 				     struct wpa_driver_ap_params *params)
 {
@@ -3481,6 +3518,9 @@ static int wpa_driver_nl80211_set_ap(void *priv,
 	int smps_mode;
 	u32 suites[10], suite;
 	u32 ver;
+#ifdef CONFIG_MESH
+	struct wpa_driver_mesh_bss_params mesh_params;
+#endif /* CONFIG_MESH */
 
 	beacon_set = params->reenable ? 0 : bss->beacon_set;
 
@@ -3704,6 +3744,18 @@ static int wpa_driver_nl80211_set_ap(void *priv,
 			bss->bandwidth = params->freq->bandwidth;
 		}
 	}
+
+#ifdef CONFIG_MESH
+	if (is_mesh_interface(drv->nlmode) && params->ht_opmode != -1) {
+		os_memset(&mesh_params, 0, sizeof(mesh_params));
+		mesh_params.flags |= WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE;
+		mesh_params.ht_opmode = params->ht_opmode;
+		ret = nl80211_set_mesh_config(priv, &mesh_params);
+		if (ret < 0)
+			return ret;
+	}
+#endif /* CONFIG_MESH */
+
 	return ret;
 fail:
 	nlmsg_free(msg);
@@ -8407,6 +8459,12 @@ static int nl80211_put_mesh_config(struct nl_msg *msg,
 		return -1;
 	}
 
+	if ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE) &&
+	    nla_put_u16(msg, NL80211_MESHCONF_HT_OPMODE, params->ht_opmode)) {
+		wpa_printf(MSG_ERROR, "nl80211: Failed to set HT_OP_MODE");
+		return -1;
+	}
+
 	nla_nest_end(msg, container);
 
 	return 0;
diff --git a/wpa_supplicant/mesh.c b/wpa_supplicant/mesh.c
index 31a5fdf..2291b72 100644
--- a/wpa_supplicant/mesh.c
+++ b/wpa_supplicant/mesh.c
@@ -434,6 +434,10 @@ int wpa_supplicant_join_mesh(struct wpa_supplicant *wpa_s,
 		params.ies = wpa_s->ifmsh->mconf->rsn_ie;
 		params.ie_len = wpa_s->ifmsh->mconf->rsn_ie_len;
 		params.basic_rates = wpa_s->ifmsh->basic_rates;
+		params.conf.flags |=
+			WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE;
+		params.conf.ht_opmode =
+			wpa_s->ifmsh->bss[0]->iface->ht_op_mode;
 	}
 
 	wpa_msg(wpa_s, MSG_INFO, "joining mesh %s",
-- 
2.7.4